扬子地块东缘新元古代造山后构造转化:瓮安穹隆构造岩石与年代学限定

doi:10.19657/j.geoscience.1000-8527.2019.05.02

现代地质 ›› 2019, Vol. 33 ›› Issue (05): 937-956.DOI: 10.19657/j.geoscience.1000-8527.2019.05.02

扬子地块东缘新元古代造山后构造转化:瓮安穹隆构造岩石与年代学限定

宋志冬¹(), 颜丹平¹^,²()

1.中国地质大学(北京) 地球科学与资源学院,北京 100083
2.中国地质大学(北京) 地质过程与矿产资源国家重点实验室,北京 100083

收稿日期:2019-02-28 修回日期:2019-07-26 出版日期:2019-10-26 发布日期:2019-10-28
通讯作者: 颜丹平
作者简介:颜丹平,男,博士,教授,博士生导师,1963年出生,构造地质学专业,主要从事构造地球化学及盆地构造分析方向研究。Email: yandp@cugb.edu.cn。
宋志冬,女,博士研究生,1986年出生,构造地质学专业,主要从事构造地球化学方向研究。Email: songzhidong1234@126.com。
基金资助:
国家重点基础研究发展计划项目(2014CB440903)

Neoproterozoic Post-orogenic Tectonic Transformation in Eastern Margin of the Yangtze Block:Petrologic and Geochronologic Constraints of the Weng’an Dome

SONG Zhidong¹(), YAN Danping¹^,²()

1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China

Received:2019-02-28 Revised:2019-07-26 Online:2019-10-26 Published:2019-10-28
Contact: YAN Danping

摘要/Abstract

摘要：

扬子地块Rodinian造山后向伸展作用转化的过程与时间,一直是扬子地块新元古代构造演化的重要科学问题。扬子地块东南瓮安穹隆保存了新元古界板溪群至南华系的完整地层层序与角度不整合接触关系,是回答和理解新元古代造山后构造转化问题的理想区域。对新元古代浅变质板溪群沉积岩和南华纪南沱组沉积层序进行了调查,并采取系列样品进行碎屑锆石U-Pb定年分析和岩石地球化学分析。野外调查表明,南华纪南沱组角度不整合于板溪群之上;年代学分析结果表明,板溪群的沉积时代应在772 Ma之前,而南华纪南沱组沉积时代晚于691 Ma。瓮安穹隆新元古代板溪群沉积岩SiO₂含量中等,SiO₂/Al₂O₃平均值为5.53,K₂O/Na₂O平均值为7.14,TFeO+MgO平均值为3.47%。板溪群物源可能来自上地壳,原岩以长英质物源为主,为活动大陆边缘构造背景,其物源主要来自扬子地块西缘。南沱组沉积岩样品SiO₂含量中等,SiO₂/Al₂O₃平均值为4.69,K₂O/Na₂O平均值为20.41,TFeO+MgO含量平均值为6.64%;碎屑沉积岩稀土元素球粒陨石标准化曲线与上陆壳相似,以轻稀土富集、显著的铕负异常和重稀土平坦为特征。南沱组沉积岩物源可能来自上地壳,原岩以长英质物源为主,有少量中性岩混入,具有裂谷背景特征。综上所述,认为瓮安穹隆板溪群—南沱组地层层序代表了从造山作用向造山后伸展裂谷转化过程,其中板溪群可能与碰撞造山作用对应,主体约在772 Ma结束,而造山后裂谷的形成在691 Ma之后,因此,从造山作用向造山后伸展转化的时间大约为772~691 Ma。

关键词: 扬子地块, 瓮安穹隆, 新元古代, 沉积层序, 碎屑锆石U-Pb年龄, 造山后伸展

Abstract:

The timing and processes of the transformation from the Rodinian post-orogenic tectonics to extension in the Yangtze block have been an important question in the Neoproterozoic Yangtze tectonic evolution. The Weng’an Dome in the southeastern Yangtze block has preserved the complete stratigraphic sequence, and the unconformity between the Neoproterozoic Banxi Group and the Nantuo Formation in the Nanhua period, and is thus an ideal target to investigate the Neoproterozoic post-orogenic tectonic transformation. We study the sedimentary sequence of the low-grade metamorphosed sedimentary rocks of the Neoproterozoic Banxi Group and Nantuo Formation (Nanhua period), via detrital zircon U-Pb dating and whole-rock geochemical analyses. Field geology shows that the Nantuo Formation (Nanhua period) lies unconformably on the Banxi Group. Age dating results indicate the maximum depositional ages for the Banxi Group and Nantuo Formation are 772 Ma and 691 Ma, respectively. Neoproterozoic rocks in the Weng’an Dome (Banxi Group) have intermediate SiO₂ contents, with the average values of SiO₂/Al₂O₃=5.53, K₂O/Na₂O=7.14 and (TFeO+MgO)=3.47%. The Neoproterozoic Banxi Group sedimentary rocks may have sourced from the feldspar-quartz-dominated upper crust. The Weng’an Dome may have formed in an active continental margin, and the clastic material may have derived from the western margin of the Neoproterozoic Yangtze block. The Nantuo Formation sedimentary rocks have intermediate SiO₂ contents, with average values of SiO₂/Al₂O₃(4.69), K₂O/Na₂O (20.41) and (TFeO+MgO) (6.64 %). The REE chondrite-normalized patterns of the clastic rocks resemble those of the upper continental crust, as characterized by LREE-enrichment, flat HREE patterns and negative Eu anomalies. The Nantuo Formation sediments may have come from the feldspar-quartz-dominated (with minor intermediate rocks) upper crust. The Weng’an Dome was likely formed in a rifting-related tectonic setting. In summary, we suggest that the stratigraphic transition from the Banxi Group to the Nantuo Formation represents the tectonic transformation from syn-collisional orogeny (till ~772 Ma) to post-orogenic rifting (after ~691 Ma). Therefore, the syn-to post-orogenic tectonic transition occurred at about 772-691 Ma.

Key words: Yangtze Block, Weng’an Dome, Neoproterozoic, sedimentary sequence, detrital zircon U-Pb age, post-orogenic extension

中图分类号:

P548

宋志冬, 颜丹平. 扬子地块东缘新元古代造山后构造转化:瓮安穹隆构造岩石与年代学限定[J]. 现代地质, 2019, 33(05): 937-956.

SONG Zhidong, YAN Danping. Neoproterozoic Post-orogenic Tectonic Transformation in Eastern Margin of the Yangtze Block:Petrologic and Geochronologic Constraints of the Weng’an Dome[J]. Geoscience, 2019, 33(05): 937-956.

图/表 15

参考文献 111

[1]	WANG J, LI Z X. History of Neoproterozoic rift basins in South China: implications for Rodinia break-up[J]. Precambrian Research, 2003,122(1/4):141-158. DOI URL
[2]	王自强, 高林志, 丁孝忠, 等. “江南造山带”变质基底形成的构造环境及演化特征[J]. 地质论评, 2012,58(3):401-413.
[3]	汪新伟, 沃玉进, 张荣强. 扬子克拉通南华纪—早古生代的构造—沉积旋回[J]. 现代地质, 2008,22(4):525-533.
[4]	何卫红, 唐婷婷, 乐明亮, 等. 华南南华纪—二叠纪沉积大地构造演化[J]. 地球科学, 2014,39(8):929-953.
[5]	LAN Z W, LI X H, ZHU M Y, et al. Revisiting the Liantuo Formation in Yangtze Block, South China: SIMS U-Pb zircon age constraints and regional and global significance[J]. Precambrian Research, 2015,263:123-141.doi: 10.1016/j.precamres.2015.03.012. DOI URL
[6]	舒良树. 华南构造演化的基本特征[J]. 地质通报, 2012,31(7):1035-1053.
[7]	黄汲清. 中国主要地质构造单元[J]. 中央地质调查所地质专报:甲种, 1945,20:1-165.
[8]	朱夏. 论中国含油气盆地构造[M]. 北京: 石油工业出版社, 1986:61-70.
[9]	王鸿祯, 杨巍然, 刘本培. 华南地区古大陆边缘构造史[M]. 武汉: 武汉地质学院出版社, 1986:1-272.
[10]	郭令智, 施央申, 马瑞士, 等. 中国东南部地体构造的研究[J]. 南京大学学报(自然科学版), 1984,26(4):1-7.
[11]	水涛. 中国东南大陆基底构造格局[J]. 中国科学(B辑), 1987,17(4):414-422.
[12]	许靖华, 孙枢, 李继亮. 是华南造山带而不是华南地台[J]. 中国科学(B辑), 1987,17(10):1107-1116.
[13]	刘宝珺, 许效松, 潘杏南, 等. 中国南方古大陆沉积地壳演化与成矿[M]. 北京: 科学出版社, 1993:1-236.
[14]	丘元禧, 张渝昌, 马文璞. 雪峰山陆内造山带的构造特征与演化[J]. 高校地质学报, 1998,44(4):432-443.
[15]	殷鸿福, 吴顺宝, 杜远生, 等. 华南是特提斯多岛洋体系的一部分[J]. 地球科学——中国地质大学学报, 1999,24(1):1-12.
[16]	杨明桂, 黄水保, 楼法生, 等. 中国东南陆区岩石圈结构与大规模成矿作用[J]. 中国地质, 2009,36(3):528-543.
[17]	柏道远, 贾宝华, 刘伟, 等. 湖南城步火山岩锆石SHRIMP U-Pb年龄及其对江南造山带新元古代构造演化的约束[J]. 地质学报, 2010,84(12):1715-1726.
[18]	柏道远, 贾宝华, 钟响, 等. 雪峰造山带新元古代构造演化框架[J]. 沉积与特提斯地质, 2011,31(3):78-87.
[19]	张国伟, 郭安林, 董云鹏, 等. 大陆地质与大陆构造和大陆动力学[J]. 地学前缘, 2011,18(3):1-12.
[20]	柏道远, 熊雄, 杨俊, 等. 雪峰造山带中段地质构造特征[J]. 中国地质, 2014,41(2):399-418.
[21]	柏道远, 钟响, 贾朋远, 等. 雪峰造山带南段构造变形研究[J]. 大地构造与成矿学, 2014,38(3):512-529.
[22]	毕晨时. 贵州南沱冰期海洋磷的地球化学[D]. 贵阳:贵州大学, 2016:1-68.
[23]	TAYLOR S R, MCLENNAN S M. The Continental Crust: Its Composition and Evolution[M]. Oxford: Blackwell Scientific Publication, 1985:1-312.
[24]	GROMET L P, DYMEK R F, HASKIN L A, et al. The “North American Shale Composite”: its compilation, major and trace element characteristics[J]. Geochimica et Cosmochimica Acta, 1984,48:2469-2482. DOI URL
[25]	陈岳龙, 杨忠芳, 赵志丹. 同位素地质年代学与地球化学[M]. 北京: 地质出版社, 2005:78-79.
[26]	FEDO M C, SIRCOMBE N K, RAINBIRD H R. Detrital zircon analysis of the sedimentary record[J]. Reviews in Mineralogy and Geochemistry, 2003,53(1):277-303. DOI URL
[27]	BRUGUIER O, LANCELOT J R, MALAVIEILLE J. U-Pb dating on single detrital zircon grains from the Triassic Songpan-Ganze flysch (Central China): provenance and tectonic correlations[J]. Earth and Planetary Science Letters, 1997,152:217-231. DOI URL
[28]	CONDIE K C, BELOUSOVA E, GRIFFIN W L, et al. Granitoid events in space and time: constraints from igneous and detrital zircon age spectra[J]. Gondwana Research, 2009,15:228-242. DOI URL
[29]	LIU Y S, GAO S, HU Z C, et al. Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-North China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths[J]. Journal of Petrology, 2010,51(1/2):537-571. DOI URL
[30]	LIU Y S, HU Z C, ZONG K Q, et al. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS[J]. Chinese Science Bulletin, 2010,55(15):1535-1546. DOI URL
[31]	LUDWIG K R. User’s Manual for Isoplot 3.0: A Geochronological Toolkit for Microsoft Excel[M]. Berkeley: Berkeley Geochronology Center, 2003: 1-47.
[32]	陈小勇, 陈国华, 舒立旻, 等. 江南东段华夏与扬子陆块碰撞时间的研究[J]. 新疆地质, 2015,33(4):520-528.
[33]	韩坤英, 王梁, 丁孝忠, 等. 桂北地区南华系沉积物物源分析:来自碎屑锆石U-Pb年龄的证据[J]. 岩石学报, 2016,32(7):2166-2180.
[34]	SIRCOMBE K N. Tracing provenance through the isotope ages of littoral and sedimentary detrital zircon, eastern Australia[J]. Sedimentary Geology, 1999,124(1/4):47-67. DOI URL
[35]	GRIFFIN W L, BELOUSOVA E A, SHEE S R, et al. Archean crustal evolution in the northern Yilgarn Craton: U-Pb and Hf-isotope evidence from detrital zircons[J]. Precambrian Research, 2004,131(3/4):231-282. DOI URL
[36]	BLANK L P, KAMO S L, WILLIAMS I S, et al. The application of SHEIMP to Phanerozoic geochronology: a critical appraisal of four zircon standards[J]. Chemical Geology, 2003,200:171-188. DOI URL
[37]	ANDERSEN T. Correction of common lead in U-Pb analyses that do not report ²⁰⁴Pb[J]. Chemical Geology, 2002,192:59-79. DOI URL
[38]	HANCHAR J M, RUNDNICK R L. Revealing hidden structures: the application of cathodoluminescence and back-scattered electron imaging to dating zircons from lower crustal xenoliths[J]. Lithos, 1995,36:289-303. DOI URL
[39]	VAVRA G, SCHMID R, GEBAUER D. Internal morphology, habit and U-Th-Pb microanalysis of amphibole to granulite facies zircon: geochronology of the Ivren Zone (Southern Alps)[J]. Contributions to Mineralogy and Petrology, 1999,134:380-404. DOI URL
[40]	HOSKIN P W O, IRELAND T R. Rare earth element chemistry of zircon and its use as a provenance indicator[J]. Geology, 2000,28(7):627-630. DOI URL
[41]	HOSKIN P W O, BLACK L P. Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircons[J]. Journal of Metamorphic Geology, 2000,18:423-439. DOI URL
[42]	陈道公, ISACHSEN C, 支霞臣, 等. 安徽潜山片麻岩锆石U-Pb年龄[J]. 科学通报, 2000,45(2):214-217.
[43]	BELOUSOVAE E, GRIFFIN W L, O’REILLY S Y, et al. Igneous zircon: trace element composition as an indicator of source rock type[J]. Contributions to Mineralogy and Petrology, 2002,143(5):602-622. DOI URL
[44]	CORFU F, HANCHAR J M, HOSKIN P W, et al. Atlas of zircon textures[J]. Reviews of Mineralogy and Geochemistry, 2003,53:468-500.
[45]	WU Y, ZHANG Y. Genesis of zircon and its constraints on interpretation of U-Pb age[J]. Chinese Science Bulletin, 2004,49(15):1554-1569. DOI URL
[46]	吴元保, 郑永飞. 锆石成因矿物学研究及其对U-Pb年龄解释的制约[J]. 科学通报, 2004,49(16):1589-1604.
[47]	钟玉芳, 马昌前, 佘振兵. 锆石地球化学特征及地质应用研究综述[J]. 地质科技情报, 2006,25(1):27-40.
[48]	王伟, 李方林, 鲍征宇. 松潘—甘孜盆地中、晚三叠世沉积物来源及演化的锆石U-Pb年代学制约[J]. 地质科技情报, 2007,26(5):35-44.
[49]	张士贞, 向树元, 万俊, 等. 西藏比如盆地碎屑锆石LA-ICP-MS U-Pb测年及其地质意义[J]. 地质科技情报, 2010,29(5):15-22.
[50]	雷玮琰, 施光海, 刘迎新. 不同成因锆石的微量元素特征研究进展[J]. 地学前缘, 2013,20(4):273-284.
[51]	BHATIA M R, TAYLOR S R. Trace-element geochemistry and sedimentary provinces: a study from the Tasman Geosyncline, Australia[J]. Chemical Geology, 1981,33(1):115-125. DOI URL
[52]	BHATIA M R, CROOK K A W. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins[J]. Contributions to Mineralogy and Petrology, 1986,92:181-193. DOI URL
[53]	ROSER B P, KORSCH R J. Determination of tectonic setting of sandstone-mudstone suites using SiO₂ content and K₂O/Na₂O ratio[J]. Journal of Geology, 1986,94:635-650. DOI URL
[54]	ROSER B P, KORSCH R J. Provenance signatures of sandstone-mudstone suites determined using discriminant function analysis of major-element date[J]. Chemical Geology, 1988,67:119-139. DOI URL
[55]	MACLEAN W H, BARRETT T J. Lithogeochemical techniques using immobile elements[J]. Journal of Geochemical Exploration, 1993,48(2):109-133. DOI URL
[56]	GIRTY G H, HANSON A D, KNAACK C, et al. Provenance determined by REE, Th, and Sc analyses of metasedimentary rocks, Boyden Cave roof pendant, central Sierra Nevada, California[J]. Journal of Sedimentary Research, 1994,64(1):68-73.
[57]	闫全人, 高山林, 王宗起, 等. 松辽盆地沉积岩地球化学特征对物源区、沉积环境和原型盆地构造环境的反映[J]. 地质学报, 2002,76(4):500.
[58]	周建波, 郑常青, 刘建辉, 等. 大别造山带浅变质岩的地质-地球化学特征及成因机制[J]. 矿物岩石, 2005,25(4):61-68.
[59]	BHATIA M R. Rlate tectonics and geochemical composition of sandstones[J]. Journal of Geology, 1983,91:611-627. DOI URL
[60]	MCLENNAN S M, TAYLOR S R, MCCULLOCH M T, et al. Geochemical and Nd-Sr isotopic composition of deep-sea turbidites: crustal evolution and plate tectonic associations[J]. Geochimica et Cosmochimica Acta, 1990,54(7):2015-2050. DOI URL
[61]	MCLENNAN S M, HEMMING S R, TAYLOR S R, et al. Early Proterozoic crustal evolution: Geochemical and Nd-Pb isotopic evidence from metasedimentary rocks, southwestern North America[J]. Geochimica et Cosmochimica Acta, 1995,59(6):1117-1153.
[62]	GU X X. Geochemical characteristics of the Triassic Tethys-turbidites in the north western Sichuan, China: implications for provenance and interpretation of the tectonic setting[J]. Geochimica et Cosmochimica Acta, 1994,58(21):4615-4631. DOI URL
[63]	顾雪祥. 沉积物地球化学特征与沉积盆地构造背景分析[M]//程恩华.当代地质科学技术进展. 武汉: 中国地质大学出版社, 1996:205-212.
[64]	顾雪祥, 刘建明, SCHULZ O, 等. 江南造山带雪峰隆起区元古宙浊积岩沉积构造背景的地球化学制约[J]. 地球化学, 2003,32(5):406-426.
[65]	FLEET A. R. Aqueous and sedimentary geochemistry of the rare earth elements[M]//HENDERSON P. Rare Earth Element Geochemistry. Amsterdam: Elsevier, 1984: 331-373.
[66]	MCLENNAN S M. Rare earth elements in sedimentary rocks: influence of provenance and sedimentary processes[J]. Reviews of Mineralogy, 1989,21:169-200.
[67]	毛光周, 刘池洋. 地球化学在物源及沉积背景分析中的应用[J]. 地球科学与环境学报, 2011,33(4):337-348.
[68]	SAMINPANYA S, DUANGKRAYOM J, JINTASAKUL, et al. Petrography, mineralogy and geochemistry of Cretaceous sediment samples from western Khorat Plateau, Thailand, and considerations on their provenance[J]. Journal of African Earth Sciences, 2014,83:13-34.
[69]	肖斌. 银额盆地查干凹陷下白垩统巴音戈壁组—苏红图组砂岩地球化学[J]. 矿物岩石地球化学通报, 2014,33(4):517-525. DOI URL
[70]	PERRI F. Composition, provenance and source weathering of Mesozoic sandstones from Western-Central Mediterranean Alpine Chains[J]. Journal of African Earth Sciences, 2014,91:32-43. DOI URL
[71]	BHATIA M R. Rare earth element geochemistry of Australian Paleozoic graywackes and mudrocks: provenance and tectonic control[J]. Sedimentary Geology, 1985,45(1/2):97-113. DOI URL
[72]	ROLLISON R H. 岩石地球化学[M].杨学明,杨晓勇,陈双喜,译. 合肥: 中国科学技术大学出版社, 2000:1-275.
[73]	FLOYD P A, SHAIL R, LEVERIDGE B E, et al. Geochemistry and provenance of Rhenoherzynian synorogenic sandstones: implications for tectonic environment discrimination[J]. Geological Society, 1991,57:611-626.
[74]	SHAO L S, TATTERGGER K, CARBE S C D. Sandstone petrology and geochemistry of the Turpan Basin(NW China): implications for the tectonic evolution of a continental basin[J]. Journal of Sedimentary Research, 2001,71(1):37-49. DOI URL
[75]	赵红格, 刘池洋. 物源分析方法及研究进展[J]. 沉积学报, 2003,21(3):409-415.
[76]	CULLERS R L, STONE J. Chemical and mineralogical comparison of the Pennsylvanian Fountain Formation, Colorado, U.S.A. (an uplifted continental block) to sedimentary rocks from other tectonic environments[J]. Lithos, 1991,27:115-131. DOI URL
[77]	CONDIE K C. Another look at rare earth elements in shales[J]. Geochimica et Cosmochimica Acta, 1991,55(9):2527-2531. DOI URL
[78]	CRICHTON J G, CONDIE K C. Trace elements as source indicators in cratonic sediments: a case study from the Early Proterozoic Libby Creek Group, southeastern Wyoming[J]. The Journal of Geology, 1993,101(3):319-332. DOI URL
[79]	MCLENNAN S M, HEMMING S, MCDANIEL D K, et al. Geochemical approaches to sedimentation, provenance and tectonics[J]. GSA Special Papers, 1993,284:21-40.
[80]	李双应, 李任伟, 岳书仓, 等. 安徽肥西中生代碎屑岩地球化学特征及其对物源制约[J]. 岩石学报, 2004,20(3):667-676.
[81]	SINGH P. Major, trace and REE geochemistry of the Ganga River sediments: influence of provenance and sedimentary processes[J]. Chemical Geology, 2009,266:242-255. DOI URL
[82]	FRALICK P W, KRONBERG B I. Geochemical discrimination of clastic sedimentary rock sources[J]. Sedimentary Geology, 1997,113:111-124. DOI URL
[83]	WANG W, ZHOU M F, YAN D P, et al. Depositional age, provenance, and tectonic setting of the Neoproterozoic Sibao Group, southeastern Yangtze Block, South China[J]. Precambrian Research, 2012,192:107-124.
[84]	李献华, 王选策, 李武显, 等. 华南新元古代玄武质岩石成因与构造意义:从造山运动到陆内裂谷[J]. 地球化学, 2008,37(4):382-398.
[85]	刘军, 靳淑韵. 辽宁弓长岭铁矿床斜长角闪岩类地球化学特征研究及原岩恢复[J]. 中国地质, 2010,37(2):324-333.
[86]	FLOYD P A, LEVERIDGE B E. Tectonic environment of the Devonian Gramsatho basin, South Cornwall, Framework mode and geochemical evidence from turbiditic sandstones[J]. Geological Society, 1987,144:531-542.
[87]	GU X X, LIU J M, ZHENG M H. Provenance and tectonic setting of the Proterozoic turbidites in Hunan, south China[J]. Journal of Sedimentary Research, 2002,70(3):520-532. DOI URL
[88]	CULLERS R. The controls on the major and trace element variation of shales, siltstones, and sandstones of Pennsylvanian-Permian age from uplifted continental blocks in Colorado to platform sediment in Kansas, USA[J]. Geochimica et Cosmochimica Acta, 1994,58:4955-4972. DOI URL
[89]	MCLENNAN S M, TAYLOR S R. Geochemical evolution of Archean shales from South Africa-Ⅰ. The Swaziland and Pongola supergroups[J]. Precambrian Research, 1983,22:93-124. DOI URL
[90]	MOECHER D P, SAMSON S D. Differential zircon fertility of source terranes and natural bias in the detrital zircon record: Implications for sedimentary provenance analysis[J]. Earth and Planetary Science Letters, 2006,247(3/4):252-266. DOI URL
[91]	GREENTREE M R, LI Z X. The oldest known rocks in southwestern China: SHEIMP U-Pb magmatic crystallization age and detrital provenance analysis of the Paleoproterozoic Dahongshan Group[J]. Journal of Asian Earth Sciences, 2008,33(5/6):289-302. DOI URL
[92]	WANG Y J, ZHANG F F, FAN W M, et al. Tectonic setting of the South China Block in the Early Paleozoic: resolving intracontinental and ocean closure models from detrital zircon U-Pb geochronology[J]. Tectonics, 2010,29:TC6020. DOI URL PMID
[93]	YU J H, O’REILLY S Y, WANG L J, et al. Where was South China in the Rodinia supercontinent? Evidence from U-Pb geochronology and Hf isotopes of detrital zircons[J]. Precambrian Research, 2008,164(1/2):1-15. DOI URL
[94]	YU J H, O’REILLY S Y, ZHANG M F, et al. U-Pb geochronology and Hf-Nd isotopic geochemistry of the Badu Complex, southeastern China: Implications for the Precambrian crustal evolution and paleogeography of the Cathaysia Block[J]. Precambrian Research, 2012,222/223:424-449. DOI URL
[95]	王鹏鸣, 于津海, 孙涛, 等. 祥东新元古代沉积岩的地球化学和碎屑锆石年代学特征及其构造意义[J]. 岩石学报, 2012,28(12):3841-3857.
[96]	王鹏鸣, 于津海, 孙涛, 等. 湘桂震旦-寒武纪沉积岩组成的变化:对华南构造演化的指示[J]. 中国科学:地球科学, 2013,43(11):1893-1906.
[97]	LIU X M, GAO S, DIWU C R, et al. Precambrian crustal growth of Yangtze craton as revealed by detrital zircon studies[J]. American Journal of Science, 2008,308(4):421-468. DOI URL
[98]	WANG X L, ZHOU J C, GRIFFIN W L, et al. Detrital zircon geochronology of Precambrian basement sequences in the Jiangnan orogen: dating the assembly of the Yangtze and Cathaysia blocks[J]. Precambrian Research, 2007,159(1/2):117-131. DOI URL
[99]	WANG L J, GRIFFIN W L, YU J H, et al. Precambrian crustal evolution of the Yangtze Block tracked by detrital zircons from Neoproterozoic sedimentary rocks[J]. Precambrian Research, 2010,177(1/2):131-144. DOI URL
[100]	WANG L J, YU J H, GRIFFIN W L, et al. Early crustal evolution in the western Yangtze Block: evidence from U-Pb and Lu-Hf isotopes on detrital zircons from sedimentary rocks[J]. Precambrian Research, 2012,222/223:368-385. DOI URL
[101]	ZHENG J P, GRIFFIN W L, O’REILLY Y S, et al. Widespread Archean basement beneath the Yangtze craton[J]. Geology, 2006,34(6):417-420. DOI URL
[102]	LI Z X, LI X H, KINNY P D, et al. Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton, South China and correlations with other continents: evidence for a mantle superplume that broke up Rodinia[J]. Precambrian Research, 2003,122:85-109. DOI URL
[103]	张英利, 王宗起, 王刚, 等. 上扬子会泽地区早三叠世飞仙关组砂岩物源特征:来自重矿物铬尖晶石和碎屑锆石的限定[J]. 地质论评, 2016,62(1):54-59.
[104]	崔晓庄, 蒋新胜, 邓奇, 等. 桂北地区丹州群锆石U-Pb年代学及对华南新元古代裂谷作用期次的启示[J]. 大地构造与成矿学, 2016,40(5):1049-1063.
[105]	COMPSTON W, ZHANG Z C, COOPER J A. Further SHRIMP geochronology on the Early Cambrian of south China[J]. American Journal of Science, 2008,308:399-420. DOI URL
[106]	周明忠, 罗泰义, 李正祥, 等. 遵义牛蹄塘组底部凝灰岩锆石SHRIMP U-Pb年龄及地质意义[J]. 科学通报, 2008,53(1):104-109.
[107]	朱日祥, 李献华, 侯光先, 等. 梅树村剖面离子探针锆石U-Pb年代学:对前寒武纪—寒武纪界线的年代制约[J]. 地球科学, 2009,39(8):1105-1110.
[108]	HOFFMAN P F. Did the breakout of Laurentia turn Gondwanaland inside-out?[J]. Science, 1991,252:1409-1412. DOI URL PMID
[109]	HOFFMAN P F. Supercontinents [M]//AARON W N. Encyclopedia of Earth System Science. San Diego: Academic Press, 1992: 323-328.
[110]	DALZIEL I W D. On the organization of American plates in the Neoproterozoic and the breakout of Laurentia[J]. GSA Today, 1992,2(11):240-241.
[111]	WINDLEY B F. The Evolving Continents[M].3rd ed. New York: Wiley, 1995: 1-526.

样品编号	岩性			采样层位			SiO₂			TiO₂			Al₂O₃			TFeO			MnO			MgO			CaO			Na₂O			K₂O		P₂O₅			烧失量			SiO₂/ Al₂O₃			K₂O/ Na₂O			Al₂O₃/ (Na₂O +CaO)			Li			Sc
Y57	粉砂岩			Pt₃BN			68.24			0.41			19.31			1.53			0.01			0.40			0.06			1.50			5.00		0.03			3.03			3.53			3.33			12.38			26.56			8.17
Y58	石英砂岩			Pt₃BN			78.00			0.65			11.25			2.84			0.03			0.48			0.01			0.03			2.31		0.05			3.10			6.93			77.00			281.25			35.76			5.86
Y59	砂岩			Pt₃BN			63.30			0.74			15.53			6.43			0.32			1.97			2.75			2.98			2.18		0.10			3.43			4.08			0.73			2.71			51.08			6.62
Y60	粉砂岩			Pt₃BN			80.21			0.19			9.08			2.44			0.01			0.14			0.05			3.84			0.51		0.02			2.12			8.83			0.13			2.33			15.06			3.53
Y131	凝灰岩			Pt₃BN			72.01			2.23			9.34			2.88			0.11			0.35			3.62			3.80			0.55		0.01			4.21			7.71			0.14			1.26			21.10			10.87
Y140	凝灰岩			Pt₃BN			72.43			0.35			14.92			2.29			0.02			0.60			0.06			1.91			4.14		0.02			2.46			4.85			2.17			7.57			13.11			6.84
Z50	冰积泥砾岩			Nh			65.42			0.47			12.48			2.30			0.06			3.40			3.58			0.01			3.99		0.07			7.33			5.24			399.00			3.48			12.70			10.10
Z51	冰积砾岩			Nh			70.86			0.51			13.64			4.77			0.02			1.46			0.53			0.03			4.83		0.08			3.15			5.20			161.00			24.36			5.81			9.73
Z52	砂岩			Pt₃BN			66.65			0.53			19.18			1.68			0.01			1.03			0.23			0.35			6.55		0.03			3.06			3.47			18.71			33.07			6.81			11.60
Z53	硅质岩			Pt₃BN			77.76			0.27			11.17			1.66			0.03			0.49			0.44			0.65			4.66		0.27			1.78			6.96			7.17			10.25			28.90			7.30
Z54	石英砂岩			Pt₃BN			72.97			0.45			13.99			2.18			0.07			0.62			0.46			6.02			1.66		0.02			1.51			5.22			0.28			2.16			12.50			10.10
Z55	凝灰岩			Pt₃BN			70.15			0.47			16.88			2.90			0.05			0.94			0.33			1.22			4.29		0.02			2.47			4.16			3.52			10.89			8.33			10.60
Z56	硅质岩			Pt₃BN			85.93			0.20			6.37			0.36			0.06			0.19			1.69			3.34			0.46		0.02			1.88			13.49			0.14			1.27			20.50			6.28
Z57	硅质岩			Pt₃BN			78.76			0.39			12.12			1.31			0.03			0.28			0.14			4.46			2.24		0.02			0.93			6.50			0.50			2.63			12.20			9.09
Z58	硅质岩			Pt₃BN			69.41			0.49			16.16			3.03			0.08			0.62			0.21			2.76			4.25		0.03			2.12			4.30			1.54			5.44			17.80			11.40
Z59	凝灰岩			Pt₃BN			62.14			0.69			21.60			3.70			0.04			0.90			0.07			0.13			3.44		0.05			6.38			2.88			26.46			108.00			13.00			13.70
Z60	凝灰岩			Pt₃BN			64.11			0.64			19.76			3.31			0.03			0.96			0.32			1.24			5.41		0.07			3.46			3.24			4.36			12.67			30.20			16.00
Z61	硅质岩			Pt₃BN			78.39			0.35			11.33			1.55			0.04			0.38			0.59			3.21			2.17		0.05			1.50			6.92			0.68			2.98			16.60			9.02
Z62	砂岩			Pt₃BN			66.86			0.66			15.53			4.63			0.05			1.01			1.30			1.41			4.31		0.31			3.75			4.31			3.06			5.73			12.40			12.80
Z63	凝灰岩			Pt₃BN			68.19			0.48			13.80			4.34			0.08			1.07			2.18			2.24			2.35		0.03			4.31			4.94			1.05			3.12			28.10			12.80
Z64	凝灰岩			Pt₃BN			64.07			0.76			18.55			5.21			0.07			0.85			0.43			2.32			3.35		0.06			3.45			3.45			1.44			6.75			46.20			16.60
Z65	砂岩			Pt₃BN			70.01			0.54			15.93			3.10			0.05			0.75			0.11			2.84			3.60		0.04			2.77			4.39			1.27			5.40			13.40			5.36
Z66	砂岩			Pt₃BN			78.21			0.31			11.70			1.69			0.06			0.45			0.29			3.58			2.37		0.04			1.24			6.68			0.66			3.02			21.20			7.79
Z67	凝灰岩			Pt₃BN			72.34			0.86			16.55			1.45			0.01			0.49			0.05			0.17			2.45		0.04			4.55			4.37			14.41			75.23			45.00			9.14
Z68	砂岩			Pt₃BN			75.95			0.28			11.96			1.53			0.06			0.55			1.87			1.71			2.61		0.13			3.02			6.35			1.53			3.34			5.25			5.54
Z69	石英砂岩			Pt₃BN			71.24			0.58			14.02			4.71			0.03			1.10			0.28			2.20			2.43		0.06			3.65			5.08			1.10			5.65			57.80			12.90
样品编号	V	Cr			Co			Ni			Cu			Zn			Ga			Rb			Sr			Y			Zr			Nb			Cs			Ba			La			Ce			Pr			Nd
Y57	30.30	13.33			0.29			3.08			5.87			32.60			27.80			120.20			69.02			60.50			299.80			18.11			21.58			882.4			50.04			97.34			11.54			46.48
Y58	36.64	31.72			3.50			4.81			2.60			49.94			11.67			61.12			37.12			27.40			654.00			17.18			3.60			256.0			32.34			62.80			7.18			27.34
Y59	32.18	29.38			8.06			10.51			21.38			115.46			11.47			49.06			78.40			27.66			296.00			15.60			2.99			262.4			26.72			54.44			6.50			25.74
Y60	9.35	2.17			1.56			1.73			5.80			35.36			5.15			13.03			49.56			18.73			129.12			6.42			0.60			282.8			21.54			42.94			5.37			21.56
Y131	56.48	31.98			2.14			2.64			5.47			33.42			6.76			13.52			123.28			18.21			885.00			29.68			0.74			218.0			26.30			53.28			5.96			22.50
Y140	17.65	7.51			2.17			3.13			3.71			46.66			18.25			97.32			46.00			42.44			240.80			14.54			4.03			757.2			42.30			81.70			10.89			43.48
Z50	55.00	32.80			4.35			18.30			6.59			47.90			15.90			102.00			102.00			31.30			219.00			10.80			6.82			198.0			37.20			73.50			7.66			28.90
Z51	45.80	30.40			4.73			17.20			5.55			47.50			16.50			119.00			47.00			29.70			229.00			11.20			7.78			272.0			34.80			72.30			7.79			30.40
Z52	42.40	26.60			4.43			14.00			70.30			85.10			22.40			126.00			39.70			45.90			403.00			14.40			11.50			598.0			48.90			98.90			11.30			45.20
Z53	22.10	18.40			1.39			9.49			3.45			44.20			10.30			54.50			35.70			30.00			153.00			6.80			3.01			549.0			30.20			63.80			7.13			28.90
Z54	21.90	10.10			2.42			5.75			4.18			62.20			13.80			45.10			121.00			26.50			268.00			6.90			1.10			1 720.0			25.50			53.30			6.25			24.50
Z55	31.90	18.10			1.91			7.71			4.15			67.30			21.10			109.00			70.10			46.50			326.00			13.10			4.55			666.0			35.90			73.10			8.68			34.80
Z56	7.70	22.30			0.96			16.50			4.23			29.70			3.72			13.10			82.80			22.50			103.00			2.80			0.48			2 420.0			14.50			32.90			3.87			16.70
Z57	30.70	12.80			2.97			6.89			4.79			137.00			10.30			53.50			87.50			25.50			183.00			7.50			3.71			629.0			21.20			47.40			5.31			21.10
Z58	37.00	26.60			2.66			12.70			11.80			85.20			20.70			115.00			102.00			39.30			229.00			10.30			10.30			967.0			21.40			47.40			5.58			21.70
Z59	49.90	26.30			2.82			14.00			8.89			113.00			25.50			108.00			13.90			43.80			375.00			12.90			3.83			370.0			33.70			53.40			7.29			27.60
Z60	50.40	10.90			2.47			7.32			5.08			101.00			29.60			148.00			53.60			57.00			326.00			13.40			10.50			737.0			47.00			91.20			11.40			46.10
样品编号	V	Cr			Co			Ni			Cu			Zn			Ga			Rb			Sr			Y			Zr			Nb			Cs			Ba			La			Ce			Pr			Nd
Z61	24.20	7.60			2.06			4.87			9.35			47.40			13.40			69.90			96.20			31.30			179.00			6.70			4.97			879.0			26.10			51.20			6.00			24.20
Z62	61.80	67.00			8.89			26.70			20.90			89.20			19.30			129.00			129.00			29.40			290.00			14.40			6.21			947.0			39.70			77.40			8.65			32.30
Z63	40.60	35.40			5.33			17.20			13.70			104.00			17.60			87.70			149.00			26.70			267.00			10.70			2.80			648.0			40.20			79.10			8.76			33.80
Z64	78.30	37.70			9.64			20.20			27.30			142.00			21.80			121.00			106.00			29.00			225.00			12.90			4.64			815.0			33.60			69.50			7.55			30.70
Z65	19.70	18.50			1.52			8.20			4.01			45.60			10.80			60.30			62.00			15.40			142.00			7.60			2.99			473.0			21.30			42.70			4.51			16.70
Z66	24.30	14.20			2.90			8.57			10.70			53.70			12.40			62.00			147.00			20.90			154.00			11.00			1.80			666.0			31.50			60.90			6.33			23.40
Z67	62.30	37.70			3.22			17.50			25.40			104.00			17.40			88.20			89.00			32.70			279.00			16.00			4.80			396.0			47.10			90.50			10.8			43.00
Z68	155.50	13.00			3.01			7.84			9.56			34.80			11.30			68.50			70.20			26.20			174.00			7.60			2.43			307.0			22.90			52.10			6.02			25.30
Z69	61.50	50.70			9.46			26.50			29.90			87.20			15.90			84.70			85.50			20.10			157.00			9.20			3.58			332.0			33.70			65.70			7.1			26.80
样品编号	Sm		Eu			Gd			Tb			Dy			Ho			Er			Tm			Yb			Lu			Hf				Ta			Pb			Th			U			ΣREE			(La/Yb)_N
Y57	9.99		1.53			10.27			1.63			10.67			2.10			6.25			0.90			5.93			0.87			7.14				1.42			10.67			11.73			2.71			316.04			5.70
Y58	5.11		0.92			4.52			0.72			4.84			0.99			3.15			0.48			3.28			0.50			15.46				1.04			4.66			11.10			2.19			181.57			6.66
Y59	5.69		1.09			5.96			0.89			5.40			1.00			2.94			0.42			2.76			0.40			6.90				1.10			14.08			9.13			1.69			167.61			6.54
Y60	4.52		0.86			4.13			0.58			3.49			0.67			2.02			0.30			2.00			0.30			3.26				0.39			19.57			5.52			1.25			129.01			7.28
Y131	4.10		1.01			3.65			0.52			3.29			0.66			2.15			0.34			2.55			0.42			21.11				1.80			3.05			6.15			1.60			144.94			6.97
Y140	8.60		1.38			7.85			1.17			7.60			1.53			4.71			0.69			4.53			0.67			6.09				0.99			2.22			9.06			1.63			259.54			6.31
Z50	5.78		1.12			5.09			0.91			5.27			1.11			3.44			0.49			3.38			0.51			5.92				0.43			9.51			10.60			3.83			205.66			7.44
Z51	5.30		1.17			4.70			0.91			5.18			1.12			3.22			0.50			3.22			0.49			6.11				0.46			12.50			11.00			1.54			200.80			7.30
Z52	8.75		1.49			7.52			1.23			7.22			1.56			4.99			0.79			5.35			0.81			10.30				0.38			15.20			12.40			3.49			289.91			6.18
Z53	5.90		0.98			4.82			0.86			5.10			1.02			3.21			0.51			3.10			0.48			4.42				0.12			10.60			7.09			2.76			186.01			6.58
Z54	5.07		1.36			4.62			0.81			4.84			0.93			2.87			0.42			2.79			0.43			6.21				0.22			7.34			7.16			1.49			160.19			6.18
Z55	6.71		1.35			5.99			1.23			7.64			1.67			5.24			0.80			5.19			0.81			8.71				0.53			9.57			10.90			2.84			235.61			4.67
Z56	3.61		0.83			3.53			0.63			3.86			0.77			2.25			0.35			2.14			0.37			2.81				0.11			7.00			3.26			0.98			108.81			4.58
Z57	4.13		0.64			3.42			0.62			3.97			0.93			2.99			0.50			3.11			0.49			5.02				0.31			75.50			8.57			2.48			141.31			4.61
Z58	4.83		0.86			4.53			0.97			6.49			1.38			4.27			0.66			4.37			0.67			6.47				0.30			14.90			12.00			2.60			164.41			3.31
Z59	5.85		1.22			5.42			1.14			7.69			1.64			4.76			0.78			5.22			0.82			10.10				0.55			235.00			11.40			2.70			200.33			4.36
Z60	8.97		1.86			7.97			1.53			9.58			2.12			6.34			0.88			6.07			0.92			8.88				0.76			12.30			11.40			2.62			298.94			5.23
Z61	4.87		1.14			4.50			0.84			5.09			1.12			3.29			0.50			3.23			0.49			4.96				0.37			11.00			7.40			1.59			163.87			5.46
Z62	6.11		1.18			4.86			0.85			5.02			1.04			3.09			0.48			3.31			0.48			7.64				0.47			18.10			10.60			2.18			213.87			8.10
Z63	6.20		1.01			4.71			0.81			4.49			0.98			2.81			0.43			3.06			0.44			6.80				0.23			20.10			9.44			1.94			213.50			8.88
Z64	5.74		1.16			4.23			0.82			5.11			1.06			3.11			0.48			3.23			0.50			5.99				0.54			25.10			9.38			2.13			195.79			7.03
Z65	3.10		0.55			2.38			0.43			2.49			0.52			1.57			0.25			1.68			0.25			3.51				0.29			5.84			5.06			1.14			113.83			8.57
Z66	4.21		0.59			2.99			0.57			3.36			0.69			2.14			0.34			2.35			0.35			4.30				0.39			22.90			7.70			1.81			160.62			9.06
Z67	7.41		1.45			5.78			0.96			5.64			1.17			3.50			0.48			3.45			0.54			7.72				0.48			19.40			10.00			2.32			254.48			9.23
Z68	5.57		1.23			5.01			0.86			4.66			0.97			2.72			0.42			2.69			0.54			4.99				0.34			16.40			6.02			1.47			157.19			5.75
Z69	4.60		0.86			3.46			0.65			3.71			0.78			2.36			0.34			2.45			0.36			4.71				0.23			12.30			8.70			1.43			172.97			9.30

样品编号	岩性			采样层位			SiO₂			TiO₂			Al₂O₃			TFeO			MnO			MgO			CaO			Na₂O			K₂O		P₂O₅			烧失量			SiO₂/ Al₂O₃			K₂O/ Na₂O			Al₂O₃/ (Na₂O +CaO)			Li			Sc
Y57	粉砂岩			Pt₃BN			68.24			0.41			19.31			1.53			0.01			0.40			0.06			1.50			5.00		0.03			3.03			3.53			3.33			12.38			26.56			8.17
Y58	石英砂岩			Pt₃BN			78.00			0.65			11.25			2.84			0.03			0.48			0.01			0.03			2.31		0.05			3.10			6.93			77.00			281.25			35.76			5.86
Y59	砂岩			Pt₃BN			63.30			0.74			15.53			6.43			0.32			1.97			2.75			2.98			2.18		0.10			3.43			4.08			0.73			2.71			51.08			6.62
Y60	粉砂岩			Pt₃BN			80.21			0.19			9.08			2.44			0.01			0.14			0.05			3.84			0.51		0.02			2.12			8.83			0.13			2.33			15.06			3.53
Y131	凝灰岩			Pt₃BN			72.01			2.23			9.34			2.88			0.11			0.35			3.62			3.80			0.55		0.01			4.21			7.71			0.14			1.26			21.10			10.87
Y140	凝灰岩			Pt₃BN			72.43			0.35			14.92			2.29			0.02			0.60			0.06			1.91			4.14		0.02			2.46			4.85			2.17			7.57			13.11			6.84
Z50	冰积泥砾岩			Nh			65.42			0.47			12.48			2.30			0.06			3.40			3.58			0.01			3.99		0.07			7.33			5.24			399.00			3.48			12.70			10.10
Z51	冰积砾岩			Nh			70.86			0.51			13.64			4.77			0.02			1.46			0.53			0.03			4.83		0.08			3.15			5.20			161.00			24.36			5.81			9.73
Z52	砂岩			Pt₃BN			66.65			0.53			19.18			1.68			0.01			1.03			0.23			0.35			6.55		0.03			3.06			3.47			18.71			33.07			6.81			11.60
Z53	硅质岩			Pt₃BN			77.76			0.27			11.17			1.66			0.03			0.49			0.44			0.65			4.66		0.27			1.78			6.96			7.17			10.25			28.90			7.30
Z54	石英砂岩			Pt₃BN			72.97			0.45			13.99			2.18			0.07			0.62			0.46			6.02			1.66		0.02			1.51			5.22			0.28			2.16			12.50			10.10
Z55	凝灰岩			Pt₃BN			70.15			0.47			16.88			2.90			0.05			0.94			0.33			1.22			4.29		0.02			2.47			4.16			3.52			10.89			8.33			10.60
Z56	硅质岩			Pt₃BN			85.93			0.20			6.37			0.36			0.06			0.19			1.69			3.34			0.46		0.02			1.88			13.49			0.14			1.27			20.50			6.28
Z57	硅质岩			Pt₃BN			78.76			0.39			12.12			1.31			0.03			0.28			0.14			4.46			2.24		0.02			0.93			6.50			0.50			2.63			12.20			9.09
Z58	硅质岩			Pt₃BN			69.41			0.49			16.16			3.03			0.08			0.62			0.21			2.76			4.25		0.03			2.12			4.30			1.54			5.44			17.80			11.40
Z59	凝灰岩			Pt₃BN			62.14			0.69			21.60			3.70			0.04			0.90			0.07			0.13			3.44		0.05			6.38			2.88			26.46			108.00			13.00			13.70
Z60	凝灰岩			Pt₃BN			64.11			0.64			19.76			3.31			0.03			0.96			0.32			1.24			5.41		0.07			3.46			3.24			4.36			12.67			30.20			16.00
Z61	硅质岩			Pt₃BN			78.39			0.35			11.33			1.55			0.04			0.38			0.59			3.21			2.17		0.05			1.50			6.92			0.68			2.98			16.60			9.02
Z62	砂岩			Pt₃BN			66.86			0.66			15.53			4.63			0.05			1.01			1.30			1.41			4.31		0.31			3.75			4.31			3.06			5.73			12.40			12.80
Z63	凝灰岩			Pt₃BN			68.19			0.48			13.80			4.34			0.08			1.07			2.18			2.24			2.35		0.03			4.31			4.94			1.05			3.12			28.10			12.80
Z64	凝灰岩			Pt₃BN			64.07			0.76			18.55			5.21			0.07			0.85			0.43			2.32			3.35		0.06			3.45			3.45			1.44			6.75			46.20			16.60
Z65	砂岩			Pt₃BN			70.01			0.54			15.93			3.10			0.05			0.75			0.11			2.84			3.60		0.04			2.77			4.39			1.27			5.40			13.40			5.36
Z66	砂岩			Pt₃BN			78.21			0.31			11.70			1.69			0.06			0.45			0.29			3.58			2.37		0.04			1.24			6.68			0.66			3.02			21.20			7.79
Z67	凝灰岩			Pt₃BN			72.34			0.86			16.55			1.45			0.01			0.49			0.05			0.17			2.45		0.04			4.55			4.37			14.41			75.23			45.00			9.14
Z68	砂岩			Pt₃BN			75.95			0.28			11.96			1.53			0.06			0.55			1.87			1.71			2.61		0.13			3.02			6.35			1.53			3.34			5.25			5.54
Z69	石英砂岩			Pt₃BN			71.24			0.58			14.02			4.71			0.03			1.10			0.28			2.20			2.43		0.06			3.65			5.08			1.10			5.65			57.80			12.90
样品编号	V	Cr			Co			Ni			Cu			Zn			Ga			Rb			Sr			Y			Zr			Nb			Cs			Ba			La			Ce			Pr			Nd
Y57	30.30	13.33			0.29			3.08			5.87			32.60			27.80			120.20			69.02			60.50			299.80			18.11			21.58			882.4			50.04			97.34			11.54			46.48
Y58	36.64	31.72			3.50			4.81			2.60			49.94			11.67			61.12			37.12			27.40			654.00			17.18			3.60			256.0			32.34			62.80			7.18			27.34
Y59	32.18	29.38			8.06			10.51			21.38			115.46			11.47			49.06			78.40			27.66			296.00			15.60			2.99			262.4			26.72			54.44			6.50			25.74
Y60	9.35	2.17			1.56			1.73			5.80			35.36			5.15			13.03			49.56			18.73			129.12			6.42			0.60			282.8			21.54			42.94			5.37			21.56
Y131	56.48	31.98			2.14			2.64			5.47			33.42			6.76			13.52			123.28			18.21			885.00			29.68			0.74			218.0			26.30			53.28			5.96			22.50
Y140	17.65	7.51			2.17			3.13			3.71			46.66			18.25			97.32			46.00			42.44			240.80			14.54			4.03			757.2			42.30			81.70			10.89			43.48
Z50	55.00	32.80			4.35			18.30			6.59			47.90			15.90			102.00			102.00			31.30			219.00			10.80			6.82			198.0			37.20			73.50			7.66			28.90
Z51	45.80	30.40			4.73			17.20			5.55			47.50			16.50			119.00			47.00			29.70			229.00			11.20			7.78			272.0			34.80			72.30			7.79			30.40
Z52	42.40	26.60			4.43			14.00			70.30			85.10			22.40			126.00			39.70			45.90			403.00			14.40			11.50			598.0			48.90			98.90			11.30			45.20
Z53	22.10	18.40			1.39			9.49			3.45			44.20			10.30			54.50			35.70			30.00			153.00			6.80			3.01			549.0			30.20			63.80			7.13			28.90
Z54	21.90	10.10			2.42			5.75			4.18			62.20			13.80			45.10			121.00			26.50			268.00			6.90			1.10			1 720.0			25.50			53.30			6.25			24.50
Z55	31.90	18.10			1.91			7.71			4.15			67.30			21.10			109.00			70.10			46.50			326.00			13.10			4.55			666.0			35.90			73.10			8.68			34.80
Z56	7.70	22.30			0.96			16.50			4.23			29.70			3.72			13.10			82.80			22.50			103.00			2.80			0.48			2 420.0			14.50			32.90			3.87			16.70
Z57	30.70	12.80			2.97			6.89			4.79			137.00			10.30			53.50			87.50			25.50			183.00			7.50			3.71			629.0			21.20			47.40			5.31			21.10
Z58	37.00	26.60			2.66			12.70			11.80			85.20			20.70			115.00			102.00			39.30			229.00			10.30			10.30			967.0			21.40			47.40			5.58			21.70
Z59	49.90	26.30			2.82			14.00			8.89			113.00			25.50			108.00			13.90			43.80			375.00			12.90			3.83			370.0			33.70			53.40			7.29			27.60
Z60	50.40	10.90			2.47			7.32			5.08			101.00			29.60			148.00			53.60			57.00			326.00			13.40			10.50			737.0			47.00			91.20			11.40			46.10
样品编号	V	Cr			Co			Ni			Cu			Zn			Ga			Rb			Sr			Y			Zr			Nb			Cs			Ba			La			Ce			Pr			Nd
Z61	24.20	7.60			2.06			4.87			9.35			47.40			13.40			69.90			96.20			31.30			179.00			6.70			4.97			879.0			26.10			51.20			6.00			24.20
Z62	61.80	67.00			8.89			26.70			20.90			89.20			19.30			129.00			129.00			29.40			290.00			14.40			6.21			947.0			39.70			77.40			8.65			32.30
Z63	40.60	35.40			5.33			17.20			13.70			104.00			17.60			87.70			149.00			26.70			267.00			10.70			2.80			648.0			40.20			79.10			8.76			33.80
Z64	78.30	37.70			9.64			20.20			27.30			142.00			21.80			121.00			106.00			29.00			225.00			12.90			4.64			815.0			33.60			69.50			7.55			30.70
Z65	19.70	18.50			1.52			8.20			4.01			45.60			10.80			60.30			62.00			15.40			142.00			7.60			2.99			473.0			21.30			42.70			4.51			16.70
Z66	24.30	14.20			2.90			8.57			10.70			53.70			12.40			62.00			147.00			20.90			154.00			11.00			1.80			666.0			31.50			60.90			6.33			23.40
Z67	62.30	37.70			3.22			17.50			25.40			104.00			17.40			88.20			89.00			32.70			279.00			16.00			4.80			396.0			47.10			90.50			10.8			43.00
Z68	155.50	13.00			3.01			7.84			9.56			34.80			11.30			68.50			70.20			26.20			174.00			7.60			2.43			307.0			22.90			52.10			6.02			25.30
Z69	61.50	50.70			9.46			26.50			29.90			87.20			15.90			84.70			85.50			20.10			157.00			9.20			3.58			332.0			33.70			65.70			7.1			26.80
样品编号	Sm		Eu			Gd			Tb			Dy			Ho			Er			Tm			Yb			Lu			Hf				Ta			Pb			Th			U			ΣREE			(La/Yb)_N
Y57	9.99		1.53			10.27			1.63			10.67			2.10			6.25			0.90			5.93			0.87			7.14				1.42			10.67			11.73			2.71			316.04			5.70
Y58	5.11		0.92			4.52			0.72			4.84			0.99			3.15			0.48			3.28			0.50			15.46				1.04			4.66			11.10			2.19			181.57			6.66
Y59	5.69		1.09			5.96			0.89			5.40			1.00			2.94			0.42			2.76			0.40			6.90				1.10			14.08			9.13			1.69			167.61			6.54
Y60	4.52		0.86			4.13			0.58			3.49			0.67			2.02			0.30			2.00			0.30			3.26				0.39			19.57			5.52			1.25			129.01			7.28
Y131	4.10		1.01			3.65			0.52			3.29			0.66			2.15			0.34			2.55			0.42			21.11				1.80			3.05			6.15			1.60			144.94			6.97
Y140	8.60		1.38			7.85			1.17			7.60			1.53			4.71			0.69			4.53			0.67			6.09				0.99			2.22			9.06			1.63			259.54			6.31
Z50	5.78		1.12			5.09			0.91			5.27			1.11			3.44			0.49			3.38			0.51			5.92				0.43			9.51			10.60			3.83			205.66			7.44
Z51	5.30		1.17			4.70			0.91			5.18			1.12			3.22			0.50			3.22			0.49			6.11				0.46			12.50			11.00			1.54			200.80			7.30
Z52	8.75		1.49			7.52			1.23			7.22			1.56			4.99			0.79			5.35			0.81			10.30				0.38			15.20			12.40			3.49			289.91			6.18
Z53	5.90		0.98			4.82			0.86			5.10			1.02			3.21			0.51			3.10			0.48			4.42				0.12			10.60			7.09			2.76			186.01			6.58
Z54	5.07		1.36			4.62			0.81			4.84			0.93			2.87			0.42			2.79			0.43			6.21				0.22			7.34			7.16			1.49			160.19			6.18
Z55	6.71		1.35			5.99			1.23			7.64			1.67			5.24			0.80			5.19			0.81			8.71				0.53			9.57			10.90			2.84			235.61			4.67
Z56	3.61		0.83			3.53			0.63			3.86			0.77			2.25			0.35			2.14			0.37			2.81				0.11			7.00			3.26			0.98			108.81			4.58
Z57	4.13		0.64			3.42			0.62			3.97			0.93			2.99			0.50			3.11			0.49			5.02				0.31			75.50			8.57			2.48			141.31			4.61
Z58	4.83		0.86			4.53			0.97			6.49			1.38			4.27			0.66			4.37			0.67			6.47				0.30			14.90			12.00			2.60			164.41			3.31
Z59	5.85		1.22			5.42			1.14			7.69			1.64			4.76			0.78			5.22			0.82			10.10				0.55			235.00			11.40			2.70			200.33			4.36
Z60	8.97		1.86			7.97			1.53			9.58			2.12			6.34			0.88			6.07			0.92			8.88				0.76			12.30			11.40			2.62			298.94			5.23
Z61	4.87		1.14			4.50			0.84			5.09			1.12			3.29			0.50			3.23			0.49			4.96				0.37			11.00			7.40			1.59			163.87			5.46
Z62	6.11		1.18			4.86			0.85			5.02			1.04			3.09			0.48			3.31			0.48			7.64				0.47			18.10			10.60			2.18			213.87			8.10
Z63	6.20		1.01			4.71			0.81			4.49			0.98			2.81			0.43			3.06			0.44			6.80				0.23			20.10			9.44			1.94			213.50			8.88
Z64	5.74		1.16			4.23			0.82			5.11			1.06			3.11			0.48			3.23			0.50			5.99				0.54			25.10			9.38			2.13			195.79			7.03
Z65	3.10		0.55			2.38			0.43			2.49			0.52			1.57			0.25			1.68			0.25			3.51				0.29			5.84			5.06			1.14			113.83			8.57
Z66	4.21		0.59			2.99			0.57			3.36			0.69			2.14			0.34			2.35			0.35			4.30				0.39			22.90			7.70			1.81			160.62			9.06
Z67	7.41		1.45			5.78			0.96			5.64			1.17			3.50			0.48			3.45			0.54			7.72				0.48			19.40			10.00			2.32			254.48			9.23
Z68	5.57		1.23			5.01			0.86			4.66			0.97			2.72			0.42			2.69			0.54			4.99				0.34			16.40			6.02			1.47			157.19			5.75
Z69	4.60		0.86			3.46			0.65			3.71			0.78			2.36			0.34			2.45			0.36			4.71				0.23			12.30			8.70			1.43			172.97			9.30

测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y136-1	1.25	0.072	0.005	0.131	0.003	1.315	0.079	987	134	791	15	852	35
Y136-2	2.18	0.074	0.003	0.125	0.002	1.288	0.051	1 035	85	773	9	841	23
Y136-3	0.98	0.069	0.003	0.132	0.002	1.293	0.058	909	87	802	12	843	26
Y136-4	1.12	0.074	0.003	0.133	0.002	1.373	0.056	1 029	90	807	10	877	24
Y136-5	0.97	0.075	0.007	0.133	0.004	1.367	0.127	1 133	183	804	22	875	55
Y136-6	1.13	0.068	0.004	0.130	0.002	1.214	0.070	872	128	790	13	807	32
Y136-7	1.74	0.071	0.005	0.127	0.003	1.290	0.102	969	155	772	18	841	45
Y136-8	2.45	0.066	0.005	0.129	0.003	1.175	0.080	807	162	782	14	789	37
Y136-9	1.22	0.075	0.005	0.137	0.003	1.419	0.094	1 074	144	828	16	897	39
Y136-10	0.53	0.083	0.005	0.169	0.003	1.923	0.105	1 258	114	1 008	15	1 089	36
Y136-11	1.13	0.071	0.006	0.131	0.003	1.250	0.086	946	162	792	18	824	39
Y136-12	1.26	0.073	0.005	0.130	0.002	1.337	0.084	1 033	126	790	13	862	36
Y136-13	1.07	0.067	0.004	0.132	0.003	1.232	0.071	843	122	801	15	815	32
Y136-14	0.66	0.071	0.005	0.157	0.003	1.533	0.092	967	131	939	14	944	37
Y136-15	1.04	0.067	0.005	0.128	0.003	1.173	0.082	835	156	774	16	788	38
Y136-16	1.62	0.067	0.006	0.126	0.003	1.136	0.089	843	181	775	16	771	42
Y136-17	1.24	0.072	0.003	0.145	0.002	1.443	0.060	972	85	872	13	907	25
Y136-18	0.74	0.077	0.005	0.132	0.003	1.391	0.082	1 111	123	802	16	885	35
Y136-19	1.00	0.065	0.005	0.134	0.003	1.192	0.088	776	160	811	14	797	41
Y136-20	1.03	0.071	0.007	0.128	0.004	1.257	0.132	967	212	777	20	827	59
Y136-21	1.67	0.072	0.006	0.127	0.003	1.237	0.089	983	164	773	18	817	41
Y136-22	1.46	0.066	0.004	0.132	0.002	1.191	0.067	800	94	797	13	796	31
Y136-23	1.13	0.068	0.007	0.133	0.003	1.245	0.122	857	259	805	16	821	55
Y136-24	0.75	0.074	0.003	0.130	0.002	1.354	0.057	1 033	89	789	11	869	25
Y136-25	0.58	0.068	0.004	0.141	0.003	1.326	0.079	857	132	852	15	857	34
Y136-26	1.49	0.077	0.005	0.128	0.003	1.370	0.092	1 131	137	774	16	876	40
Y136-27	1.43	0.067	0.006	0.128	0.003	1.153	0.095	844	194	775	19	779	45
Y136-28	1.72	0.070	0.003	0.126	0.002	1.228	0.051	917	89	774	11	813	23
Y136-29	1.37	0.069	0.004	0.139	0.003	1.327	0.080	883	128	839	15	857	35
Y136-30	1.00	0.066	0.005	0.129	0.003	1.179	0.088	811	163	785	15	791	41
Y136-31	1.47	0.083	0.008	0.140	0.004	1.566	0.144	1 259	196	845	21	957	57
Y136-32	0.62	0.075	0.004	0.163	0.003	1.720	0.089	1 074	99	973	16	1 016	33
Y136-33	1.92	0.067	0.008	0.125	0.003	1.123	0.104	840	235	772	16	765	50
Y136-34	1.45	0.076	0.004	0.135	0.002	1.433	0.073	1 102	107	817	13	903	31
Y136-35	1.04	0.071	0.006	0.128	0.003	1.221	0.095	950	178	775	19	810	43
Y136-36	1.57	0.066	0.004	0.126	0.002	1.150	0.065	820	121	777	13	777	31
Y136-37	1.17	0.075	0.007	0.126	0.003	1.299	0.112	1 080	190	787	18	845	49
Y136-38	1.53	0.068	0.006	0.129	0.004	1.171	0.091	861	193	784	21	787	42
Y136-39	1.64	0.077	0.005	0.127	0.003	1.331	0.072	1 118	121	773	17	859	31
Y136-40	1.57	0.171	0.005	0.491	0.007	11.720	0.362	2 569	52	2 574	29	2 582	29
Y136-41	1.31	0.072	0.005	0.129	0.003	1.282	0.079	972	130	783	16	838	35
Y136-42	1.09	0.071	0.003	0.139	0.002	1.369	0.052	954	77	836	12	876	22
Y136-43	1.45	0.075	0.007	0.142	0.004	1.426	0.119	1 080	193	858	20	900	50
测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y136-44	1.53	0.070	0.007	0.126	0.003	1.211	0.112	931	200	778	20	806	51
Y136-45	0.80	0.166	0.005	0.465	0.006	10.75	0.315	2 513	48	2 459	27	2 501	27
Y136-46	0.82	0.073	0.003	0.130	0.002	1.313	0.051	1 017	81	786	10	851	22
Y136-47	0.86	0.067	0.004	0.125	0.002	1.174	0.064	837	112	780	11	788	30
Y136-48	0.83	0.069	0.006	0.132	0.003	1.208	0.100	910	195	797	20	804	46
Y137-1	1.06	0.057	0.003	0.128	0.002	1.013	0.056	498	124	777	11	711	28
Y137-2	0.76	0.063	0.003	0.142	0.002	1.245	0.051	717	86	854	10	821	23
Y137-3	0.73	0.077	0.004	0.144	0.003	1.549	0.087	1 121	102	865	15	950	35
Y137-4	0.70	0.068	0.005	0.146	0.003	1.356	0.106	877	161	877	19	870	46
Y137-5	0.75	0.069	0.004	0.140	0.003	1.316	0.067	909	115	846	15	853	29
Y137-6	0.62	0.076	0.004	0.147	0.002	1.538	0.081	1 094	108	882	14	946	33
Y137-7	1.31	0.071	0.004	0.124	0.002	1.196	0.062	954	114	753	11	799	29
Y137-8	0.79	0.075	0.005	0.131	0.003	1.327	0.077	1 057	126	794	15	858	34
Y137-9	0.79	0.066	0.003	0.121	0.002	1.092	0.051	791	100	735	10	750	25
Y137-10	0.69	0.069	0.004	0.147	0.002	1.392	0.079	903	122	884	13	886	34
Y137-11	1.01	0.066	0.003	0.125	0.002	1.122	0.052	1 200	103	761	12	764	25
Y137-12	1.05	0.063	0.004	0.131	0.002	1.137	0.065	702	124	794	13	771	31
Y137-13	0.79	0.072	0.003	0.146	0.002	1.481	0.059	999	80	879	11	923	24
Y137-14	0.74	0.066	0.004	0.129	0.002	1.191	0.067	1 200	119	781	13	797	31
Y137-15	1.12	0.079	0.005	0.128	0.003	1.412	0.078	1 183	117	778	17	894	33
Y137-16	0.50	0.069	0.003	0.146	0.002	1.415	0.064	902	94	881	13	895	27
Y137-17	0.48	0.073	0.003	0.157	0.002	1.610	0.063	1033	80	937	12	974	24
Y137-18	0.66	0.069	0.003	0.145	0.002	1.397	0.056	906	85	871	11	888	24
Y137-19	0.35	0.079	0.005	0.151	0.002	1.689	0.110	1 169	112	909	14	1004	42
Y137-20	0.85	0.070	0.003	0.137	0.002	1.338	0.054	939	92	830	10	862	23
Y137-21	0.68	0.071	0.003	0.144	0.002	1.413	0.058	943	86	868	11	895	25
Y137-22	0.73	0.064	0.003	0.144	0.003	1.284	0.061	743	96	869	14	839	27
Y137-23	0.69	0.068	0.003	0.152	0.002	1.433	0.064	872	86	912	13	903	27
Y137-24	0.42	0.064	0.003	0.157	0.002	1.391	0.073	754	115	940	14	885	31
Y137-25	1.40	0.083	0.003	0.142	0.003	1.655	0.074	1 265	104	855	16	992	28
Y137-26	0.44	0.074	0.004	0.163	0.003	1.658	0.079	1 043	99	976	17	992	30
Y137-27	0.87	0.069	0.004	0.157	0.003	1.518	0.088	887	111	941	15	938	36
Y137-28	0.90	0.128	0.004	0.381	0.005	6.834	0.229	2 076	57	2 081	24	2 090	30
Y137-29	0.82	0.076	0.004	0.139	0.003	1.493	0.096	1 100	113	839	14	928	39
Y137-30	0.78	0.066	0.003	0.150	0.002	1.377	0.064	806	102	902	12	879	28
Y137-31	1.10	0.074	0.003	0.122	0.002	1.255	0.058	1 029	96	744	10	826	26
Y137-32	1.09	0.068	0.003	0.126	0.002	1.179	0.057	865	99	762	13	791	27
Y137-33	0.65	0.065	0.004	0.147	0.002	1.331	0.067	789	113	884	12	859	29
Y137-34	0.84	0.070	0.003	0.135	0.002	1.331	0.064	943	99	818	11	859	28
Y137-35	0.42	0.150	0.005	0.464	0.006	9.724	0.304	2 343	55	2 457	28	2 409	29
Y137-36	0.58	0.143	0.005	0.341	0.004	6.839	0.220	2 269	63	1 893	21	2 091	29
Y137-37	0.46	0.072	0.004	0.147	0.003	1.449	0.073	989	105	884	15	909	30
Y137-38	0.65	0.071	0.003	0.147	0.002	1.458	0.053	950	77	886	11	913	22
Y137-39	0.56	0.070	0.003	0.154	0.002	1.512	0.056	1 000	77	922	12	935	23
测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y137-40	1.93	0.069	0.004	0.156	0.003	1.502	0.087	902	112	933	17	931	35
Y137-41	0.74	0.130	0.004	0.374	0.005	6.826	0.210	2 100	56	2 048	22	2 089	27
Y137-42	0.74	0.068	0.003	0.148	0.002	1.401	0.058	854	91	892	11	889	25
Y137-43	0.91	0.074	0.003	0.150	0.002	1.561	0.061	1 040	77	903	12	955	24
Y137-44	0.82	0.066	0.003	0.146	0.002	1.361	0.071	822	109	881	14	872	31
Y137-45	0.63	0.068	0.003	0.153	0.002	1.463	0.073	880	106	915	13	915	30
Y137-46	0.89	0.073	0.003	0.153	0.002	1.567	0.056	1 006	71	920	11	957	22
Y137-47	0.93	0.067	0.003	0.149	0.002	1.398	0.055	839	81	895	11	888	23
Y137-48	0.56	0.063	0.002	0.138	0.002	1.217	0.048	720	282	834	11	809	22
Y137-49	0.74	0.070	0.003	0.145	0.003	1.399	0.063	928	96	873	15	889	27
Y137-50	2.34	0.134	0.004	0.408	0.006	7.616	0.245	2 153	56	2 205	29	2 187	29
Y137-51	0.52	0.079	0.005	0.156	0.004	1.746	0.117	1 183	113	933	20	1 026	43
Y137-52	0.99	0.058	0.004	0.131	0.003	1.042	0.075	539	166	792	15	725	37
Y137-53	0.74	0.069	0.002	0.146	0.002	1.394	0.049	898	68	879	12	886	21
Y137-54	0.91	0.071	0.003	0.147	0.002	1.456	0.065	969	92	886	11	913	27
Y137-55	0.77	0.074	0.006	0.148	0.003	1.461	0.106	1 055	163	889	19	914	44
Y137-56	1.35	0.072	0.006	0.131	0.003	1.255	0.100	987	172	794	19	825	45
Y137-57	1.29	0.065	0.004	0.128	0.002	1.145	0.067	789	123	776	11	775	32
Y137-58	0.74	0.064	0.004	0.140	0.002	1.211	0.076	744	138	845	14	806	35
Y137-59	0.90	0.067	0.003	0.143	0.002	1.336	0.053	854	86	864	10	861	23
Y137-60	1.01	0.066	0.003	0.142	0.002	1.284	0.059	1 200	96	853	12	839	26
Y137-61	1.13	0.065	0.004	0.131	0.002	1.181	0.072	783	125	795	13	792	34
Y137-62	0.63	0.069	0.003	0.146	0.002	1.384	0.065	889	98	878	12	882	28
Y137-63	0.65	0.063	0.003	0.150	0.002	1.308	0.068	706	117	899	12	849	30
Y137-64	0.82	0.065	0.003	0.133	0.002	1.205	0.054	769	95	807	10	803	25
Y137-65	0.45	0.067	0.004	0.148	0.003	1.387	0.085	831	126	892	15	883	36
Y137-66	0.68	0.068	0.003	0.143	0.002	1.348	0.063	857	94	861	12	867	27
Y137-67	0.81	0.066	0.003	0.145	0.002	1.348	0.068	822	103	873	14	867	29
Y137-68	1.32	0.065	0.003	0.119	0.002	1.072	0.043	761	90	726	9	740	21
Y137-69	0.70	0.070	0.003	0.139	0.002	1.355	0.052	939	83	841	10	870	22
Y137-70	0.99	0.077	0.004	0.144	0.002	1.552	0.077	1 131	98	865	12	951	31
Y137-71	0.86	0.074	0.003	0.142	0.002	1.463	0.049	1 044	69	858	10	915	20
Y137-72	1.01	0.075	0.003	0.140	0.002	1.466	0.061	1 133	80	843	11	916	25
Y137-73	2.10	0.073	0.005	0.121	0.002	1.215	0.070	1 007	126	738	14	807	32
Y137-74	2.17	0.072	0.005	0.114	0.002	1.122	0.070	998	137	695	12	764	33
Y137-75	1.29	0.082	0.007	0.113	0.003	1.257	0.105	1 243	167	691	17	827	47
Y137-76	1.57	0.069	0.004	0.121	0.002	1.158	0.060	902	109	736	11	781	28
Y137-77	1.50	0.063	0.004	0.120	0.002	1.065	0.064	700	122	729	13	736	31
Y137-78	1.15	0.071	0.004	0.121	0.002	1.201	0.065	952	115	736	11	801	30
Y137-79	1.69	0.066	0.003	0.121	0.002	1.126	0.056	806	107	736	10	766	27
Y137-80	1.65	0.079	0.006	0.121	0.003	1.348	0.103	1 181	142	737	17	867	44
Y137-81	1.93	0.070	0.004	0.121	0.002	1.181	0.062	937	112	738	11	792	29
Y137-82	1.14	0.072	0.004	0.120	0.002	1.194	0.069	987	125	731	14	798	32
Y137-83	1.15	0.073	0.005	0.119	0.003	1.198	0.078	1 017	134	724	16	800	36

测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y136-1	1.25	0.072	0.005	0.131	0.003	1.315	0.079	987	134	791	15	852	35
Y136-2	2.18	0.074	0.003	0.125	0.002	1.288	0.051	1 035	85	773	9	841	23
Y136-3	0.98	0.069	0.003	0.132	0.002	1.293	0.058	909	87	802	12	843	26
Y136-4	1.12	0.074	0.003	0.133	0.002	1.373	0.056	1 029	90	807	10	877	24
Y136-5	0.97	0.075	0.007	0.133	0.004	1.367	0.127	1 133	183	804	22	875	55
Y136-6	1.13	0.068	0.004	0.130	0.002	1.214	0.070	872	128	790	13	807	32
Y136-7	1.74	0.071	0.005	0.127	0.003	1.290	0.102	969	155	772	18	841	45
Y136-8	2.45	0.066	0.005	0.129	0.003	1.175	0.080	807	162	782	14	789	37
Y136-9	1.22	0.075	0.005	0.137	0.003	1.419	0.094	1 074	144	828	16	897	39
Y136-10	0.53	0.083	0.005	0.169	0.003	1.923	0.105	1 258	114	1 008	15	1 089	36
Y136-11	1.13	0.071	0.006	0.131	0.003	1.250	0.086	946	162	792	18	824	39
Y136-12	1.26	0.073	0.005	0.130	0.002	1.337	0.084	1 033	126	790	13	862	36
Y136-13	1.07	0.067	0.004	0.132	0.003	1.232	0.071	843	122	801	15	815	32
Y136-14	0.66	0.071	0.005	0.157	0.003	1.533	0.092	967	131	939	14	944	37
Y136-15	1.04	0.067	0.005	0.128	0.003	1.173	0.082	835	156	774	16	788	38
Y136-16	1.62	0.067	0.006	0.126	0.003	1.136	0.089	843	181	775	16	771	42
Y136-17	1.24	0.072	0.003	0.145	0.002	1.443	0.060	972	85	872	13	907	25
Y136-18	0.74	0.077	0.005	0.132	0.003	1.391	0.082	1 111	123	802	16	885	35
Y136-19	1.00	0.065	0.005	0.134	0.003	1.192	0.088	776	160	811	14	797	41
Y136-20	1.03	0.071	0.007	0.128	0.004	1.257	0.132	967	212	777	20	827	59
Y136-21	1.67	0.072	0.006	0.127	0.003	1.237	0.089	983	164	773	18	817	41
Y136-22	1.46	0.066	0.004	0.132	0.002	1.191	0.067	800	94	797	13	796	31
Y136-23	1.13	0.068	0.007	0.133	0.003	1.245	0.122	857	259	805	16	821	55
Y136-24	0.75	0.074	0.003	0.130	0.002	1.354	0.057	1 033	89	789	11	869	25
Y136-25	0.58	0.068	0.004	0.141	0.003	1.326	0.079	857	132	852	15	857	34
Y136-26	1.49	0.077	0.005	0.128	0.003	1.370	0.092	1 131	137	774	16	876	40
Y136-27	1.43	0.067	0.006	0.128	0.003	1.153	0.095	844	194	775	19	779	45
Y136-28	1.72	0.070	0.003	0.126	0.002	1.228	0.051	917	89	774	11	813	23
Y136-29	1.37	0.069	0.004	0.139	0.003	1.327	0.080	883	128	839	15	857	35
Y136-30	1.00	0.066	0.005	0.129	0.003	1.179	0.088	811	163	785	15	791	41
Y136-31	1.47	0.083	0.008	0.140	0.004	1.566	0.144	1 259	196	845	21	957	57
Y136-32	0.62	0.075	0.004	0.163	0.003	1.720	0.089	1 074	99	973	16	1 016	33
Y136-33	1.92	0.067	0.008	0.125	0.003	1.123	0.104	840	235	772	16	765	50
Y136-34	1.45	0.076	0.004	0.135	0.002	1.433	0.073	1 102	107	817	13	903	31
Y136-35	1.04	0.071	0.006	0.128	0.003	1.221	0.095	950	178	775	19	810	43
Y136-36	1.57	0.066	0.004	0.126	0.002	1.150	0.065	820	121	777	13	777	31
Y136-37	1.17	0.075	0.007	0.126	0.003	1.299	0.112	1 080	190	787	18	845	49
Y136-38	1.53	0.068	0.006	0.129	0.004	1.171	0.091	861	193	784	21	787	42
Y136-39	1.64	0.077	0.005	0.127	0.003	1.331	0.072	1 118	121	773	17	859	31
Y136-40	1.57	0.171	0.005	0.491	0.007	11.720	0.362	2 569	52	2 574	29	2 582	29
Y136-41	1.31	0.072	0.005	0.129	0.003	1.282	0.079	972	130	783	16	838	35
Y136-42	1.09	0.071	0.003	0.139	0.002	1.369	0.052	954	77	836	12	876	22
Y136-43	1.45	0.075	0.007	0.142	0.004	1.426	0.119	1 080	193	858	20	900	50
测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y136-44	1.53	0.070	0.007	0.126	0.003	1.211	0.112	931	200	778	20	806	51
Y136-45	0.80	0.166	0.005	0.465	0.006	10.75	0.315	2 513	48	2 459	27	2 501	27
Y136-46	0.82	0.073	0.003	0.130	0.002	1.313	0.051	1 017	81	786	10	851	22
Y136-47	0.86	0.067	0.004	0.125	0.002	1.174	0.064	837	112	780	11	788	30
Y136-48	0.83	0.069	0.006	0.132	0.003	1.208	0.100	910	195	797	20	804	46
Y137-1	1.06	0.057	0.003	0.128	0.002	1.013	0.056	498	124	777	11	711	28
Y137-2	0.76	0.063	0.003	0.142	0.002	1.245	0.051	717	86	854	10	821	23
Y137-3	0.73	0.077	0.004	0.144	0.003	1.549	0.087	1 121	102	865	15	950	35
Y137-4	0.70	0.068	0.005	0.146	0.003	1.356	0.106	877	161	877	19	870	46
Y137-5	0.75	0.069	0.004	0.140	0.003	1.316	0.067	909	115	846	15	853	29
Y137-6	0.62	0.076	0.004	0.147	0.002	1.538	0.081	1 094	108	882	14	946	33
Y137-7	1.31	0.071	0.004	0.124	0.002	1.196	0.062	954	114	753	11	799	29
Y137-8	0.79	0.075	0.005	0.131	0.003	1.327	0.077	1 057	126	794	15	858	34
Y137-9	0.79	0.066	0.003	0.121	0.002	1.092	0.051	791	100	735	10	750	25
Y137-10	0.69	0.069	0.004	0.147	0.002	1.392	0.079	903	122	884	13	886	34
Y137-11	1.01	0.066	0.003	0.125	0.002	1.122	0.052	1 200	103	761	12	764	25
Y137-12	1.05	0.063	0.004	0.131	0.002	1.137	0.065	702	124	794	13	771	31
Y137-13	0.79	0.072	0.003	0.146	0.002	1.481	0.059	999	80	879	11	923	24
Y137-14	0.74	0.066	0.004	0.129	0.002	1.191	0.067	1 200	119	781	13	797	31
Y137-15	1.12	0.079	0.005	0.128	0.003	1.412	0.078	1 183	117	778	17	894	33
Y137-16	0.50	0.069	0.003	0.146	0.002	1.415	0.064	902	94	881	13	895	27
Y137-17	0.48	0.073	0.003	0.157	0.002	1.610	0.063	1033	80	937	12	974	24
Y137-18	0.66	0.069	0.003	0.145	0.002	1.397	0.056	906	85	871	11	888	24
Y137-19	0.35	0.079	0.005	0.151	0.002	1.689	0.110	1 169	112	909	14	1004	42
Y137-20	0.85	0.070	0.003	0.137	0.002	1.338	0.054	939	92	830	10	862	23
Y137-21	0.68	0.071	0.003	0.144	0.002	1.413	0.058	943	86	868	11	895	25
Y137-22	0.73	0.064	0.003	0.144	0.003	1.284	0.061	743	96	869	14	839	27
Y137-23	0.69	0.068	0.003	0.152	0.002	1.433	0.064	872	86	912	13	903	27
Y137-24	0.42	0.064	0.003	0.157	0.002	1.391	0.073	754	115	940	14	885	31
Y137-25	1.40	0.083	0.003	0.142	0.003	1.655	0.074	1 265	104	855	16	992	28
Y137-26	0.44	0.074	0.004	0.163	0.003	1.658	0.079	1 043	99	976	17	992	30
Y137-27	0.87	0.069	0.004	0.157	0.003	1.518	0.088	887	111	941	15	938	36
Y137-28	0.90	0.128	0.004	0.381	0.005	6.834	0.229	2 076	57	2 081	24	2 090	30
Y137-29	0.82	0.076	0.004	0.139	0.003	1.493	0.096	1 100	113	839	14	928	39
Y137-30	0.78	0.066	0.003	0.150	0.002	1.377	0.064	806	102	902	12	879	28
Y137-31	1.10	0.074	0.003	0.122	0.002	1.255	0.058	1 029	96	744	10	826	26
Y137-32	1.09	0.068	0.003	0.126	0.002	1.179	0.057	865	99	762	13	791	27
Y137-33	0.65	0.065	0.004	0.147	0.002	1.331	0.067	789	113	884	12	859	29
Y137-34	0.84	0.070	0.003	0.135	0.002	1.331	0.064	943	99	818	11	859	28
Y137-35	0.42	0.150	0.005	0.464	0.006	9.724	0.304	2 343	55	2 457	28	2 409	29
Y137-36	0.58	0.143	0.005	0.341	0.004	6.839	0.220	2 269	63	1 893	21	2 091	29
Y137-37	0.46	0.072	0.004	0.147	0.003	1.449	0.073	989	105	884	15	909	30
Y137-38	0.65	0.071	0.003	0.147	0.002	1.458	0.053	950	77	886	11	913	22
Y137-39	0.56	0.070	0.003	0.154	0.002	1.512	0.056	1 000	77	922	12	935	23
测点号	Th/U	同位素比值						年龄/Ma
测点号	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²³⁵U	1σ
Y137-40	1.93	0.069	0.004	0.156	0.003	1.502	0.087	902	112	933	17	931	35
Y137-41	0.74	0.130	0.004	0.374	0.005	6.826	0.210	2 100	56	2 048	22	2 089	27
Y137-42	0.74	0.068	0.003	0.148	0.002	1.401	0.058	854	91	892	11	889	25
Y137-43	0.91	0.074	0.003	0.150	0.002	1.561	0.061	1 040	77	903	12	955	24
Y137-44	0.82	0.066	0.003	0.146	0.002	1.361	0.071	822	109	881	14	872	31
Y137-45	0.63	0.068	0.003	0.153	0.002	1.463	0.073	880	106	915	13	915	30
Y137-46	0.89	0.073	0.003	0.153	0.002	1.567	0.056	1 006	71	920	11	957	22
Y137-47	0.93	0.067	0.003	0.149	0.002	1.398	0.055	839	81	895	11	888	23
Y137-48	0.56	0.063	0.002	0.138	0.002	1.217	0.048	720	282	834	11	809	22
Y137-49	0.74	0.070	0.003	0.145	0.003	1.399	0.063	928	96	873	15	889	27
Y137-50	2.34	0.134	0.004	0.408	0.006	7.616	0.245	2 153	56	2 205	29	2 187	29
Y137-51	0.52	0.079	0.005	0.156	0.004	1.746	0.117	1 183	113	933	20	1 026	43
Y137-52	0.99	0.058	0.004	0.131	0.003	1.042	0.075	539	166	792	15	725	37
Y137-53	0.74	0.069	0.002	0.146	0.002	1.394	0.049	898	68	879	12	886	21
Y137-54	0.91	0.071	0.003	0.147	0.002	1.456	0.065	969	92	886	11	913	27
Y137-55	0.77	0.074	0.006	0.148	0.003	1.461	0.106	1 055	163	889	19	914	44
Y137-56	1.35	0.072	0.006	0.131	0.003	1.255	0.100	987	172	794	19	825	45
Y137-57	1.29	0.065	0.004	0.128	0.002	1.145	0.067	789	123	776	11	775	32
Y137-58	0.74	0.064	0.004	0.140	0.002	1.211	0.076	744	138	845	14	806	35
Y137-59	0.90	0.067	0.003	0.143	0.002	1.336	0.053	854	86	864	10	861	23
Y137-60	1.01	0.066	0.003	0.142	0.002	1.284	0.059	1 200	96	853	12	839	26
Y137-61	1.13	0.065	0.004	0.131	0.002	1.181	0.072	783	125	795	13	792	34
Y137-62	0.63	0.069	0.003	0.146	0.002	1.384	0.065	889	98	878	12	882	28
Y137-63	0.65	0.063	0.003	0.150	0.002	1.308	0.068	706	117	899	12	849	30
Y137-64	0.82	0.065	0.003	0.133	0.002	1.205	0.054	769	95	807	10	803	25
Y137-65	0.45	0.067	0.004	0.148	0.003	1.387	0.085	831	126	892	15	883	36
Y137-66	0.68	0.068	0.003	0.143	0.002	1.348	0.063	857	94	861	12	867	27
Y137-67	0.81	0.066	0.003	0.145	0.002	1.348	0.068	822	103	873	14	867	29
Y137-68	1.32	0.065	0.003	0.119	0.002	1.072	0.043	761	90	726	9	740	21
Y137-69	0.70	0.070	0.003	0.139	0.002	1.355	0.052	939	83	841	10	870	22
Y137-70	0.99	0.077	0.004	0.144	0.002	1.552	0.077	1 131	98	865	12	951	31
Y137-71	0.86	0.074	0.003	0.142	0.002	1.463	0.049	1 044	69	858	10	915	20
Y137-72	1.01	0.075	0.003	0.140	0.002	1.466	0.061	1 133	80	843	11	916	25
Y137-73	2.10	0.073	0.005	0.121	0.002	1.215	0.070	1 007	126	738	14	807	32
Y137-74	2.17	0.072	0.005	0.114	0.002	1.122	0.070	998	137	695	12	764	33
Y137-75	1.29	0.082	0.007	0.113	0.003	1.257	0.105	1 243	167	691	17	827	47
Y137-76	1.57	0.069	0.004	0.121	0.002	1.158	0.060	902	109	736	11	781	28
Y137-77	1.50	0.063	0.004	0.120	0.002	1.065	0.064	700	122	729	13	736	31
Y137-78	1.15	0.071	0.004	0.121	0.002	1.201	0.065	952	115	736	11	801	30
Y137-79	1.69	0.066	0.003	0.121	0.002	1.126	0.056	806	107	736	10	766	27
Y137-80	1.65	0.079	0.006	0.121	0.003	1.348	0.103	1 181	142	737	17	867	44
Y137-81	1.93	0.070	0.004	0.121	0.002	1.181	0.062	937	112	738	11	792	29
Y137-82	1.14	0.072	0.004	0.120	0.002	1.194	0.069	987	125	731	14	798	32
Y137-83	1.15	0.073	0.005	0.119	0.003	1.198	0.078	1 017	134	724	16	800	36

元素比值	La/Sc	Sc/Th	Cr/Th	Co/Th
Pt₃BN	3.65	1.12	2.82	0.41
Nh	2.87	1.05	8.26	1.22
铁镁质源区沉积岩	0.4~1.1	0.04~0.05	22~100	7.1~8.3
长英质源区沉积岩	2.5~16	0.83~20	0.5~7.7	0.22~1.5
大陆上地壳	2.7	1.0	3.3	0.9
大陆下地壳	0.3	34	222	33
洋壳	0.1	1.73	1 227	214

扬子地块东缘新元古代造山后构造转化:瓮安穹隆构造岩石与年代学限定

Neoproterozoic Post-orogenic Tectonic Transformation in Eastern Margin of the Yangtze Block:Petrologic and Geochronologic Constraints of the Weng’an Dome

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构造背景类型	La	Ce	∑REE	La/ Yb	(La/ Yb)_N	LREE/ HREE	δEu
大洋岛弧^*	8.0	19.0	58.0	4.2	2.8	3.8	1.04
大陆岛弧^*	27.0	59.0	146.0	11.0	7.5	7.7	0.79
活动大陆边缘^*	37.0	78.0	186.0	12.5	8.5	9.1	0.60
被动大陆边缘^*	39.0	85.0	210.0	15.9	10.8	8.5	0.56
新元古界样品平均值	32.2	64.3	192.9	9.7	6.5	2.7	0.62
南华系样品平均值	41.1	77.0	233.6	10.7	7.2	2.8	0.61

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[4]	陈邦学, 徐胜利, 周能武, 白权金, 李超, 张洪深. 塔里木北缘库鲁克塔格地区新元古代花岗岩LA-ICP-MS锆石U-Pb年龄、地球化学特征及其构造意义[J]. 现代地质, 2021, 35(02): 477-491.
[5]	秦锦华, 刘翠, 邓晋福, 段培新, 郭娜. 黑龙江省毛家屯花岗岩中碱性暗色矿物特征及其地质意义[J]. 现代地质, 2019, 33(02): 271-283.
[6]	张英利, 王宗起, 贾晓彤, 陈木银. 上扬子会泽地区晚三叠世须家河组砂岩物源特征:基于重矿物分析和碎屑锆石U-Pb测年[J]. 现代地质, 2018, 32(02): 213-226.
[7]	蒋幸福, 彭松柏, KUSKY Timothy, 王璐, 邓浩, 王军鹏. 江南造山带东段赣东北蛇绿岩的形成时代:来自辉长岩LA-ICP-MS锆石U-Pb年龄的证据[J]. 现代地质, 2017, 31(04): 697-704.
[8]	冉怀江，范乐元，胡圣利，尤征，金博. 苏丹Muglad盆地凯康凹陷西斜坡早白垩世沉积层序及其控制因素研究[J]. 现代地质, 2014, 28(4): 799-805.
[9]	崔晓庄,江新胜,王剑,卓皆文,熊国庆,陆俊泽. 滇中新元古代澄江组层型剖面锆石U-Pb年代学及其地质意义[J]. 现代地质, 2013, 27(3): 547-556.
[10]	闫斌, 朱祥坤, 唐索寒, 漆亮. 三峡地区陡山沱早期水体性质的稀土元素和锶同位素制约[J]. 现代地质, 2010, 24(5): 832-839.
[11]	龚日祥颜铁增余心起华锡宏张志芳. 论浙江平水群的划分和地质时代[J]. 现代地质, 2009, 23(2): 238-245.
[12]	赵俊香陈岳龙李志红. 康定杂岩锆石SHRIMP U-Pb定年及其地质意义[J]. 现代地质, 2006, 20(3): 378-385.
[13]	钟长汀. 毛德宝. 李永峰. 高华.. 华北中—新元古代火山岩及其对成矿作用的制约——以河北洞子沟银多金属矿床为例[J]. 现代地质, 2004, 18(3): 331-338.