Geochemistry, Petrogenesis and Tectonic Setting of the Middle Jurassic Taxi Plutons in Heilongjiang

doi:10.19657/j.geoscience.1000-8527.2021.158

Abstract

Abstract:

To enrich the understanding on the Mesozoic tectonic setting of the eastern Xingmeng orogenic belt,a study of the petrology,geochronology and geochemistry of the quartz monzonite,quartz monzodiorite and quartz syenite of Taxi plutons in the Hengenshan-Nenjiang-Heihe tectonic belt were reported.LA-ICP-MS zircon U-Pb dating yielded Middle Jurassic age (167.2±1.3 Ma) for the quartz monzonite. Intrusive rocks in Taxi can be divided into high-Sr and low-Sr ones: the early quartz monzodiorite is high-Sr, while the late quartz monzonite and quartz syenite are low-Sr. Our results indicate that the high-Sr and low-Sr intrusive rocks have rather different features of major element, trace element and rare earth element. All these data suggest that they show transition features from I-type to A-type granites, and should be defined as I- and A-type composite pluton. The emplacement was likely related to the subduction and closure of the Mongol-Okhotsk Ocean and the Farallon plate beneath Eurasia and Mesozoic intracontinental extension. The emplacement occurred under the tectonic background from crustal compression/thickening to extension, causing asthenospheric mantle upwelling and the mantle-derived basaltic magma underplating. This may have triggered partial melting of the lower crust and mantle, forming granitic magma. The presence of composite pluton is confirmed at Taxi, indicating that the crust in the region may have transitioned from compression and thickening to extension in the Middle Jurassic, which constrains the closure of the eastern Mongol-Okhotsk Ocean.

Key words: zircon U-Pb age, Middle Jurassic, composite pluton, underplating, closure of the Mongol-Okhotsk Ocean, Taxi area

CLC Number:

P588.12

YANG Wenpeng, LI Chenglu, YANG Yuanjiang, FU Anzong, ZHENG Bo, ZHOU Tengfei, ZHAO Ruijun. Geochemistry, Petrogenesis and Tectonic Setting of the Middle Jurassic Taxi Plutons in Heilongjiang[J]. Geoscience, 2023, 37(02): 390-403.

Figures/Tables 10

References 50

[1]	刘永江, 张兴洲, 金巍, 等. 东北地区晚古生代区域构造演化[J]. 中国地质, 2010, 37(4):943-951.
[2]	杨文鹏, 赵超, 尹国良, 等. 黑龙江塔溪地区晚古生代后造山花岗岩特征及其地质意义[J]. 现代地质, 2016, 30(6):1244-1253.
[3]	曾涛, 王涛, 童英, 等. 俄罗斯远东地区晚中生代花岗岩类的时空分布及其地质意义[J]. 地质通报, 2012, 31(5):732-744.
[4]	WU F Y, SUN D Y, GE W C, et al. Geochronology of the Phanerozoic granitoids in northeastern China[J]. Journal of Asian Earth Sciences, 2011, 41(1):1-30. DOI URL
[5]	李成禄, 徐文喜, 于援帮, 等. 小兴安岭西北部与永新金矿有关岩浆岩的年代学和地球化学及成矿构造环境[J]. 现代地质, 2017, 31(6):1114-1130.
[6]	杨元江, 李成禄, 邓昌州, 等. 大兴安岭大洋山钼矿成矿岩体地球化学、锆石U-Pb年龄及构造背景[J]. 现代地质, 2020, 34(5):1092-1102.
[7]	汪岩, 付俊彧, 杨帆, 等. 嫩江—黑河构造带收缩与伸展:源自晚古生代花岗岩类的地球化学证据[J]. 吉林大学学报(地球科学版), 2015, 45(2):374-388.
[8]	XIAO W J, WINDLEY B F, HAO J, et al. Accretion leading to collision and the Permian Solonker suture, Inner Mongolia, China: Termination of the central Asian orogenic belt[J]. Tecto-nics, 2003, 22(6):1069.
[9]	邵济安, 张履桥, 肖庆辉, 等. 中生代大兴安岭的隆起:一种可能的陆内造山机制[J]. 岩石学报, 2005, 21(3):789-794.
[10]	DONG Y, GE W C, YANG H, et al. Geochronology and geochemistry of Early Cretaceous volcanic rocks from the Baiyingaolao Formation in the central Great Xing’an Range, NE China and its tectonic implications[J]. Lithos, 2014, 205:168-184. DOI URL
[11]	李宇, 丁磊磊, 许文良, 等. 孙吴地区中侏罗世白云母花岗岩的年代学与地球化学:对蒙古—鄂霍茨克洋闭合时间的限定[J]. 岩石学报, 2015, 31(1):56-66.
[12]	杨奇荻, 郭磊, 王涛, 等. 大兴安岭中南段甘珠尔庙地区晚中生代两期花岗岩的时代、成因、物源及其构造背景[J]. 岩石学报, 2014, 30(7):1961-1981.
[13]	佟志芳, 谢贵生. 沐河屯幅M-52-19 1/20万区域地质调查报告[R]. 哈尔滨: 黑龙江省地质局第一区域地质测量队,1977.
[14]	唐臣, 张东财, 于跃江, 等. 黑龙江省矿产资源潜力评价报告[R]. 哈尔滨: 黑龙江省地质调查研究总院, 2013.
[15]	YUAN H L, GAO S, LIU X M, et al. Accurate U-Pb age and trace element determinations of zircon by laser ablation-inductively coupled plasma-mass spectrometry[J]. Geostandards and Geoanalytical Research, 2004, 28(3):353-370. DOI URL
[16]	LUDWIG K R. Users Manual for Isoplot/Ex_Ver.2.49[M]. Berkeley: Berkeley Geochronology Center Special Publication, 2001:1-56.
[17]	BELOUSOVA E, GRIFFIN W, 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
[18]	张旗, 王焰, 李承东, 等. 花岗岩的Sr-Yb分类及其地质意义[J]. 岩石学报, 2006, 22(9):2249-2269.
[19]	IRVINE T N, BARAGAR W R A. A guide to the chemical classification of the common volcanic rocks[J]. Canadian Journal of Earth Sciences, 1971, 8(5):523-548. DOI URL
[20]	RICKWOOD P C. Boundary lines within petrologic diagrams which use oxides of major and minor elements[J]. Lithos, 1989, 22(4):247-263. DOI URL
[21]	MANIAR P D, PICCOLI P M. Tectonic discrimination of grani-toids[J]. Geological Society of America Bulletin, 1989, 101(5):635-643. DOI URL
[22]	曾涛, 王涛, 郭磊, 等. 东北新开岭地区晚中生代花岗岩类时代、成因及地质意义[J]. 吉林大学学报(地球科学版), 2011, 41(6):1881-1900.
[23]	ALMEIDA C N, GUIMARÃES I P, FRANCISCO S A. A-type post-collisional granites in the Borborema Province-NE Brazil: The Queimadas Pluton[J]. Gondwana Research, 2002, 5(3):667-681. DOI URL
[24]	黎彤. 化学元素的地球丰度[J]. 地球化学, 1976, 5(3):167-174.
[25]	肖庆辉, 邓晋福, 马大铨, 等. 花岗岩研究思维与方法[M]. 北京: 地质出版社, 2002:247-253.
[26]	BOYNTON W V. Cosmochemistry of the rare earth elements: Meteorite studies[M]// Rare Earth Element Geochemistry. Amsterdam: Elsevier, 1984: 63-114.
[27]	SUN S S, MCDONOUGH W F. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[J]. Geological Society, London, Special Publications, 1989, 42(1):313-345. DOI URL
[28]	李仰春, 张克信, 吴淦国, 等. 大-小兴安岭接合部早—中侏罗世侵入岩SHRIMP锆石U-Pb定年及成因[J]. 地质通报, 2013, 32(5):717-729.
[29]	BARBARIN B. A review of the relationships between granitoid types, their origins and their geodynamic environments[J]. Lithos, 1999, 46(3):605-626. DOI URL
[30]	EBY G N. The A-type granitoids: A review of their occurrence and chemical characteristics and speculations on their petrogenesis[J]. Lithos, 1990, 26(1/2):115-134. DOI URL
[31]	ZHANG H F, PARRISH R, ZHANG L, et al. A-type granite and adakitic magmatism association in Songpan-Garze fold belt, eastern Tibetan Plateau: Implication for lithospheric delamination[J]. Lithos, 2007, 97(3/4):323-335. DOI URL
[32]	WHALEN J B, CURRIE K L, CHAPPELL B W. A-type granites: Geochemical characteristics, discrimination and petrogenesis[J]. Contributions to Mineralogy and Petrology, 1987, 95(4):407-419. DOI URL
[33]	DEFANT M J, DRUMMOND M S. Derivation of some modern arc magmas by melting of young subducted lithosphere[J]. Nature, 1990, 347:662-665. DOI
[34]	张旗, 金惟俊, 李承东, 等. 再论花岗岩按照Sr-Yb的分类:标志[J]. 岩石学报, 2010, 26(4):985-1015.
[35]	KLIMM K, HOLTZ F, KING P L. Fractionation vs. magma mixing in the Wangrah Suite A-type granites, Lachlan Fold Belt, Australia: Experimental constraints[J]. Lithos, 2008, 102(3/4):415-434. DOI URL
[36]	CHAPPELL B W. Aluminium saturation in I- and S-type granites and the characterization of fractionated haplogranites[J]. Lithos, 1999, 46(3):535-551. DOI URL
[37]	WU F Y, SUN D Y, LI H M, et al. A-type granites in northeastern China: Age and geochemical constraints on their petroge-nesis[J]. Chemical Geology, 2002, 187(1/2):143-173. DOI URL
[38]	任永健, 程烁, 张明明, 等. 黑龙江张家湾地区中侏罗世A型花岗岩地球化学特征及构造环境分析[J]. 现代地质, 2020, 34(5):1067-1076.
[39]	ZHANG C H, LI C M, DENG H L, et al. Mesozoic contraction deformation in the Yanshan and northern Taihang mountains and its implications to the destruction of the North China Craton[J]. Science China Earth Sciences, 2011, 54(6):798-822. DOI URL
[40]	张旗. 中国东部中生代岩浆活动与太平洋板块向西俯冲有关吗?[J]. 岩石矿物学杂志, 2013, 32(1):113-128.
[41]	MARUYAMA S, SEND T. Orogeny and relative plate motions: Example of the Japanese Islands[J]. Tectonophysics, 1986, 127(3/4):305-329. DOI URL
[42]	孟凡超, 刘嘉麒, 崔岩, 等. 中国东北地区中生代构造体制的转变:来自火山岩时空分布与岩石组合的制约[J]. 岩石学报, 2014, 30(12):3569-3586.
[43]	赵忠华, 孙德有, 苟军, 等. 满洲里南部塔木兰沟组火山岩年代学与地球化学[J]. 吉林大学学报(地球科学版), 2011, 41(6):1865-1880.
[44]	BATCHELOR R A, BOWDEN P. Petrogenetic interpretation of granitoid rock series using multicationic parameters[J]. Chemical Geology, 1985, 48(1/2/3/4):43-55. DOI URL
[45]	BROWN G C. Calc-alkaline intrusive rocks: their diversity, evolution and relation to arcs[M]//THORPE R S. Andesites-Orogenic Andesites and Related Rocks. New York: John Wiley & Sons, 1982:437-464.
[46]	ALTHER R, HOLL A, HEGNER E, et al. High-potassium, calc-alkaline I-type plutonism in the European Variscides: Northern Vosges (France) and northern Schwarzwald (Germany)[J]. Lithos, 2000, 50(1/2/3):51-73. DOI URL
[47]	SYLVESTER P J. Post-collisional alkaline granites[J]. The Journal of Geology, 1989, 97(3):261-280. DOI URL
[48]	CASTLE R O, LINDSLEY D H. An exsolution silica-pump mo-del for the origin of myrmekite[J]. Contributions to Mineralogy and Petrology, 1993, 115(1):58-65. DOI URL
[49]	赵玉梅, 彭戈, 赵得龙, 等. 中国阿尔泰克孜勒花岗岩体LA-ICP-MS锆石U-Pb定年、岩石地球化学特征及其地质意义[J]. 地质与勘探, 2016, 52(2):271-282.
[50]	杨富全, 赵越, 曾庆利, 等. 天津蓟县盘山I型-A型复合花岗岩体——区域构造环境转变的记录[J]. 岩石学报, 2007, 23(3):529-546.

测点号	含量(10^-6)			Th/U	同位素比值						年龄(Ma)
测点号	Th	U	Pb	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ
1	84	129	4	0.65	0.04932	0.00373	0.17887	0.01340	0.02630	0.00049	163	134	167	12	167	3
2	93	126	4	0.74	0.04918	0.00521	0.17386	0.01826	0.02563	0.00053	156	197	163	16	163	3
3	83	113	4	0.74	0.04944	0.00395	0.18102	0.01428	0.02655	0.00053	169	140	169	12	169	3
4	89	140	4	0.64	0.04948	0.00342	0.18209	0.01241	0.02668	0.00052	171	118	170	11	170	3
5	60	81	3	0.73	0.04919	0.00601	0.17389	0.02100	0.02563	0.00060	157	224	163	18	163	4
6	77	103	3	0.75	0.04934	0.00445	0.17749	0.01576	0.02608	0.00057	164	159	166	14	166	4
7	76	119	4	0.64	0.04946	0.00395	0.17939	0.01413	0.02630	0.00053	170	140	168	12	167	3
8	61	87	3	0.70	0.04940	0.00483	0.18178	0.01751	0.02668	0.00060	167	174	170	15	170	4
9	81	121	4	0.67	0.04955	0.00415	0.18196	0.01505	0.02663	0.00054	174	149	170	13	169	3
10	61	86	3	0.71	0.04937	0.00488	0.18019	0.01757	0.02646	0.00060	165	177	168	15	168	4
11	128	160	5	0.80	0.04929	0.00377	0.17835	0.01350	0.02624	0.00049	162	136	167	12	167	3
12	44	71	2	0.62	0.04947	0.00577	0.17964	0.02072	0.02633	0.00062	170	215	168	18	168	4
13	56	99	3	0.57	0.04928	0.00520	0.17736	0.01849	0.02610	0.00059	161	192	166	16	166	4
14	59	113	3	0.52	0.04929	0.00513	0.17980	0.01854	0.02645	0.00054	162	193	168	16	168	3
15	96	149	5	0.64	0.04943	0.00299	0.18095	0.01076	0.02655	0.00050	168	101	169	9	169	3
16	62	90	3	0.69	0.04971	0.00466	0.18174	0.01678	0.02651	0.00060	181	165	170	14	169	4
17	96	126	4	0.77	0.04963	0.00348	0.17609	0.01215	0.02573	0.00051	178	120	165	10	164	3
18	68	103	3	0.66	0.04936	0.00414	0.17831	0.01470	0.02620	0.00056	165	146	167	13	167	4
19	92	143	5	0.64	0.04934	0.00320	0.17882	0.01144	0.02628	0.00049	164	111	167	10	167	3
20	152	158	5	0.96	0.04950	0.00382	0.17975	0.01371	0.02633	0.00051	172	136	168	12	168	3
21	62	98	3	0.63	0.04962	0.00637	0.18005	0.02292	0.02631	0.00058	177	242	168	20	167	4
22	147	164	5	0.89	0.04941	0.00493	0.17714	0.01752	0.02600	0.00051	167	186	166	15	165	3
23	108	142	5	0.76	0.04962	0.00464	0.17990	0.01671	0.02629	0.00050	177	174	168	14	167	3
24	50	83	3	0.60	0.04929	0.00508	0.17908	0.01823	0.02635	0.00058	162	187	167	16	168	4
25	45	77	2	0.59	0.04928	0.00601	0.18121	0.02188	0.02667	0.00062	161	225	169	19	170	4

测点号	含量(10^-6)			Th/U	同位素比值						年龄(Ma)
测点号	Th	U	Pb	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ
1	84	129	4	0.65	0.04932	0.00373	0.17887	0.01340	0.02630	0.00049	163	134	167	12	167	3
2	93	126	4	0.74	0.04918	0.00521	0.17386	0.01826	0.02563	0.00053	156	197	163	16	163	3
3	83	113	4	0.74	0.04944	0.00395	0.18102	0.01428	0.02655	0.00053	169	140	169	12	169	3
4	89	140	4	0.64	0.04948	0.00342	0.18209	0.01241	0.02668	0.00052	171	118	170	11	170	3
5	60	81	3	0.73	0.04919	0.00601	0.17389	0.02100	0.02563	0.00060	157	224	163	18	163	4
6	77	103	3	0.75	0.04934	0.00445	0.17749	0.01576	0.02608	0.00057	164	159	166	14	166	4
7	76	119	4	0.64	0.04946	0.00395	0.17939	0.01413	0.02630	0.00053	170	140	168	12	167	3
8	61	87	3	0.70	0.04940	0.00483	0.18178	0.01751	0.02668	0.00060	167	174	170	15	170	4
9	81	121	4	0.67	0.04955	0.00415	0.18196	0.01505	0.02663	0.00054	174	149	170	13	169	3
10	61	86	3	0.71	0.04937	0.00488	0.18019	0.01757	0.02646	0.00060	165	177	168	15	168	4
11	128	160	5	0.80	0.04929	0.00377	0.17835	0.01350	0.02624	0.00049	162	136	167	12	167	3
12	44	71	2	0.62	0.04947	0.00577	0.17964	0.02072	0.02633	0.00062	170	215	168	18	168	4
13	56	99	3	0.57	0.04928	0.00520	0.17736	0.01849	0.02610	0.00059	161	192	166	16	166	4
14	59	113	3	0.52	0.04929	0.00513	0.17980	0.01854	0.02645	0.00054	162	193	168	16	168	3
15	96	149	5	0.64	0.04943	0.00299	0.18095	0.01076	0.02655	0.00050	168	101	169	9	169	3
16	62	90	3	0.69	0.04971	0.00466	0.18174	0.01678	0.02651	0.00060	181	165	170	14	169	4
17	96	126	4	0.77	0.04963	0.00348	0.17609	0.01215	0.02573	0.00051	178	120	165	10	164	3
18	68	103	3	0.66	0.04936	0.00414	0.17831	0.01470	0.02620	0.00056	165	146	167	13	167	4
19	92	143	5	0.64	0.04934	0.00320	0.17882	0.01144	0.02628	0.00049	164	111	167	10	167	3
20	152	158	5	0.96	0.04950	0.00382	0.17975	0.01371	0.02633	0.00051	172	136	168	12	168	3
21	62	98	3	0.63	0.04962	0.00637	0.18005	0.02292	0.02631	0.00058	177	242	168	20	167	4
22	147	164	5	0.89	0.04941	0.00493	0.17714	0.01752	0.02600	0.00051	167	186	166	15	165	3
23	108	142	5	0.76	0.04962	0.00464	0.17990	0.01671	0.02629	0.00050	177	174	168	14	167	3
24	50	83	3	0.60	0.04929	0.00508	0.17908	0.01823	0.02635	0.00058	162	187	167	16	168	4
25	45	77	2	0.59	0.04928	0.00601	0.18121	0.02188	0.02667	0.00062	161	225	169	19	170	4

类型	样品编号	岩性	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	烧失量	总量	^TFeO/Mg
高Sr 型	D0007	石英闪长岩	61.77	0.85	16.22	5.17	0.00	0.08	2.28	3.19	4.19	3.45	0.24	0.00	097.45	02.04
	Pm₂₀₇Gs15	石英闪长岩	60.45	0.95	16.69	3.20	2.42	0.09	2.81	4.98	4.17	2.35	0.21	1.29	099.61	01.54
	Pm₂₀₆Gs38	石英闪长岩	62.43	1.03	17.32	3.34	2.64	0.09	3.17	4.61	3.98	3.27	0.22	1.01	103.12	01.67
低Sr 型	Pm₂₀₇Gs64	石英正长岩	64.71	0.49	16.15	1.97	2.36	0.08	0.25	1.61	4.43	6.94	0.08	0.40	099.47	22.60
低Sr 型	Pm₂₀₆Gs24	石英二长岩	65.21	0.49	16.01	3.66	1.03	0.06	0.10	1.16	3.84	6.46	0.03	0.72	098.77	41.30
类型	样品编号	岩性	Mg^#	^TFeO	^TFe₂O₃	A/MF	C/MF	AR	σ	DI	La	Ce	Pr	Nd	Sm	Eu
高Sr 型	D0007	石英闪长岩	1.20	4.65	5.17	1.31	0.47	2.3	3.01	71.51	28.32	61.6	7.536	29.12	5.752	1.328
	Pm₂₀₇Gs15	石英闪长岩	1.30	5.30	5.89	1.14	0.62	1.86	2.38	62.62	18.00	41.0	5.330	23.00	4.590	1.220
	Pm₂₀₆Gs38	石英闪长岩	1.37	5.65	6.27	1.08	0.52	1.99	2.78	63.60	25.00	55.0	7.190	30.50	6.100	1.460
低Sr 型	Pm₂₀₇Gs64	石英正长岩	0.15	4.13	4.59	2.49	0.45	4.56	5.90	87.99	35.00	80.0	9.920	43.60	8.230	0.920
低Sr 型	Pm₂₀₆Gs24	石英二长岩	0.06	4.32	4.80	2.51	0.33	4.00	4.69	87.38	68.00	149.0	16.600	62.40	8.550	0.440
类型	样品编号	岩性	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	∑REE	LREE	HREE	LREE/ HREE	(La/ Yb)_N
高Sr 型	D0007	石英闪长岩	4.97	0.69	3.91	0.74	2.05	0.28	1.91	0.27	0020.3	168.77	133.66	14.81	09.02	10.02
	Pm₂₀₇Gs15	石英闪长岩	4.23	0.65	3.68	0.64	1.89	0.25	1.67	0.24	16.0	123.13	93.57	13.26	7.06	7.26
	Pm₂₀₆Gs38	石英闪长岩	5.45	0.81	4.32	0.77	2.15	0.28	1.82	0.26	20.0	161.08	125.18	15.85	7.90	9.28
低Sr 型	Pm₂₀₇Gs64	石英正长岩	6.78	0.85	4.16	0.70	1.97	0.26	2.01	0.35	0017.0	212.44	178.16	17.07	10.44	11.85
低Sr 型	Pm₂₀₆Gs24	石英二长岩	7.42	0.82	3.75	0.66	1.94	0.25	1.82	0.29	0017.0	338.53	304.97	16.95	17.99	25.29
类型	样品编号	岩性	10⁴Ga/Al	δEu	Rb	Sr	Ba	Ga	Nb	Ta	Zr	Hf	Th	Cr	Sc	U
高Sr 型	D0007	石英闪长岩	2.47	0.74	105.78	433.2	707	21.22	10.1	0.586	0193.1	04.9	9.9	49.3	10.6	0.872
	Pm₂₀₇Gs15	石英闪长岩	2.23	0.83	60.20	483.9	402	19.74	6.5	0.369	220.0	5.3	10.1	34.9	11.7	<5
	Pm₂₀₆Gs38	石英闪长岩	2.72	0.76	76.20	419.5	474	24.92	9.7	0.583	325.0	7.6	2.6	48.3	13.7	<5
低Sr 型	Pm₂₀₇Gs64	石英正长岩	3.00	0.37	072.20	092.7	539	25.61	17.8	1.012	1087.0	25.3	7.1	02.4	24.2	<5
低Sr 型	Pm₂₀₆Gs24	石英二长岩	3.04	0.17	123.00	85.3	176	25.76	11.0	0.669	1044.0	26.4	21.0	<2	25.6	<5

类型	样品编号	岩性	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	烧失量	总量	^TFeO/Mg
高Sr 型	D0007	石英闪长岩	61.77	0.85	16.22	5.17	0.00	0.08	2.28	3.19	4.19	3.45	0.24	0.00	097.45	02.04
	Pm₂₀₇Gs15	石英闪长岩	60.45	0.95	16.69	3.20	2.42	0.09	2.81	4.98	4.17	2.35	0.21	1.29	099.61	01.54
	Pm₂₀₆Gs38	石英闪长岩	62.43	1.03	17.32	3.34	2.64	0.09	3.17	4.61	3.98	3.27	0.22	1.01	103.12	01.67
低Sr 型	Pm₂₀₇Gs64	石英正长岩	64.71	0.49	16.15	1.97	2.36	0.08	0.25	1.61	4.43	6.94	0.08	0.40	099.47	22.60
低Sr 型	Pm₂₀₆Gs24	石英二长岩	65.21	0.49	16.01	3.66	1.03	0.06	0.10	1.16	3.84	6.46	0.03	0.72	098.77	41.30
类型	样品编号	岩性	Mg^#	^TFeO	^TFe₂O₃	A/MF	C/MF	AR	σ	DI	La	Ce	Pr	Nd	Sm	Eu
高Sr 型	D0007	石英闪长岩	1.20	4.65	5.17	1.31	0.47	2.3	3.01	71.51	28.32	61.6	7.536	29.12	5.752	1.328
	Pm₂₀₇Gs15	石英闪长岩	1.30	5.30	5.89	1.14	0.62	1.86	2.38	62.62	18.00	41.0	5.330	23.00	4.590	1.220
	Pm₂₀₆Gs38	石英闪长岩	1.37	5.65	6.27	1.08	0.52	1.99	2.78	63.60	25.00	55.0	7.190	30.50	6.100	1.460
低Sr 型	Pm₂₀₇Gs64	石英正长岩	0.15	4.13	4.59	2.49	0.45	4.56	5.90	87.99	35.00	80.0	9.920	43.60	8.230	0.920
低Sr 型	Pm₂₀₆Gs24	石英二长岩	0.06	4.32	4.80	2.51	0.33	4.00	4.69	87.38	68.00	149.0	16.600	62.40	8.550	0.440
类型	样品编号	岩性	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	∑REE	LREE	HREE	LREE/ HREE	(La/ Yb)_N
高Sr 型	D0007	石英闪长岩	4.97	0.69	3.91	0.74	2.05	0.28	1.91	0.27	0020.3	168.77	133.66	14.81	09.02	10.02
	Pm₂₀₇Gs15	石英闪长岩	4.23	0.65	3.68	0.64	1.89	0.25	1.67	0.24	16.0	123.13	93.57	13.26	7.06	7.26
	Pm₂₀₆Gs38	石英闪长岩	5.45	0.81	4.32	0.77	2.15	0.28	1.82	0.26	20.0	161.08	125.18	15.85	7.90	9.28
低Sr 型	Pm₂₀₇Gs64	石英正长岩	6.78	0.85	4.16	0.70	1.97	0.26	2.01	0.35	0017.0	212.44	178.16	17.07	10.44	11.85
低Sr 型	Pm₂₀₆Gs24	石英二长岩	7.42	0.82	3.75	0.66	1.94	0.25	1.82	0.29	0017.0	338.53	304.97	16.95	17.99	25.29
类型	样品编号	岩性	10⁴Ga/Al	δEu	Rb	Sr	Ba	Ga	Nb	Ta	Zr	Hf	Th	Cr	Sc	U
高Sr 型	D0007	石英闪长岩	2.47	0.74	105.78	433.2	707	21.22	10.1	0.586	0193.1	04.9	9.9	49.3	10.6	0.872
	Pm₂₀₇Gs15	石英闪长岩	2.23	0.83	60.20	483.9	402	19.74	6.5	0.369	220.0	5.3	10.1	34.9	11.7	<5
	Pm₂₀₆Gs38	石英闪长岩	2.72	0.76	76.20	419.5	474	24.92	9.7	0.583	325.0	7.6	2.6	48.3	13.7	<5
低Sr 型	Pm₂₀₇Gs64	石英正长岩	3.00	0.37	072.20	092.7	539	25.61	17.8	1.012	1087.0	25.3	7.1	02.4	24.2	<5
低Sr 型	Pm₂₀₆Gs24	石英二长岩	3.04	0.17	123.00	85.3	176	25.76	11.0	0.669	1044.0	26.4	21.0	<2	25.6	<5