Geochemistry Characteristics and SHRIMP Dating of YueyashanOphiolite in Beishan Orogen

Abstract

Abstract:

Beishan Orogen is a key area of Tianshan Xing'an Mongolian Orogen. The geological geochemical study on the ophiolite units from the region will be of great significance for the evolution research of the Central Asian orogenic belt. This research focuses on major elements, trace elements, Sr-Nd/Pb-Hf isotopic compositions and SHRIMP geochronology of the Yueyashan ophiolite suites in Beishan. The fine zircon SHRIMP U-Pb age of plagiogranite is (536±7) Ma, showing that the ophiolites formed in the late Early Cambrian. The geochemical characteristics of the alteratic peridotite and metabasic rocks of the Yueyashan ophiolites indicate that the ophiolites formed in the mid-ocean ridge environment independent of island arcs. With respect to the regional geological features,this paper suggests that the Yueyashan ophoplites formed in a tectonic setting of intraplate discordogenic fault the original rift evolving to a limited small oceanic basin.

Key words: Beishan； Central Asia , orogenic belt； ophiolite; , geochemistry, zircon SHRIMP U-Pb age

HOU Jing-Xie, WANG Zhong, LIU Jin-Bao, WANG Jin, LI Da-Feng. Geochemistry Characteristics and SHRIMP Dating of YueyashanOphiolite in Beishan Orogen[J]. Geoscience, 2012, 26(5): 1008-1018.

References

［1］龚全胜, 刘明强, 李海林, 等. 甘肃北山造山带类型及基本特征
[J］. 西北地质, 2002, 35(3): 28-34.
［2］王玉往, 姜福芝. 北山地区各时代火山岩组合特征及分布
[J］. 中国区域地质, 1997, 16(3): 298-304.
［3］魏志军, 黄增保, 金霞, 等.甘肃红石山地区蛇绿混杂岩地质特征
[J］. 西北地质, 2004, 37(1): 13-18.
［4］左国朝, 何国琦. 北山板块构造及成矿规律
[M］. 北京: 北京大学出版社, 1990: 1-240.
［5］左国朝, 李茂松. 甘肃北山地区早古生代岩石圈形成与演化
[M］. 兰州: 甘肃科学技术出版社, 1996: 1-120.
［6］任秉琛, 何世平, 姚文光, 等. 甘肃北山牛圈子蛇绿岩铷-锶同位素年龄及其大地构造意义
[J］. 西北地质, 2001, 34(2): 21-27.
［7］周国庆, 赵建新, 李献华. 内蒙古月牙山蛇绿岩特征及形成的构造背景: 地球化学和Sr-Nd同位素制约
[J］. 地球化学, 2000, 29(2): 108-119.
［8］黄增保, 金霞. 甘肃北山红石山蛇绿混杂岩带中基性火山岩构造环境分析
[J］. 中国地质, 2006, 33(5): 1030-1037.
［9］王立社, 杨建国, 谢春林, 等. 甘肃北山火石山地区早古生代蛇绿混杂岩的发现及其地质意义
[J］. 现代地质, 2007, 21(3): 451-456.
［10］杨合群, 李英, 赵国斌, 等. 北山蛇绿岩特征及构造属性
[J］. 西北地质, 2010, 43(1): 26-36.
［11］宋泰忠, 王瑾, 林海, 等. 内蒙古北山地区小黄山蛇绿岩地质特征
[J］. 西北地质, 2008, 41(3):55-63.
［12］代文军, 谈松. 甘肃北山野马街—马鬃山构造带蛇绿岩与相关火山岩性质及构造意义
[J］. 新疆地质, 2008, 26(3):305-313.
［13］郑荣国, 吴泰然, 张文, 等. 北山地区月牙山－洗肠井蛇绿岩的地球化学特征及形成环境
[J］. 地质学报, 2012, 86(6): 961-971.
［14］张旗, 周国庆.中国蛇绿岩
[M］. 北京: 科学出版社, 2001: 1-182.
［15］周国庆.古塔里木大陆东北缘加里东期蛇绿岩套的发现及其构造意义
[J］. 南京大学学报：自然科学版, 1988, 24(1): 39-54.
［16］于福生, 王春英, 漆家福, 等.甘新交界红柳河地区早志留世蛇绿混杂岩的厘定及大地构造意义
[J］. 矿物岩石, 2000, 20(4): 60-66.
［17］Compston W, Williams I S, Kirschvink J L, et al. Zircon UPb ages for the Early Cambrian timescale
[J］. Journal of the Geology Society, 1992, 149: 171-184.
［18］Williams I S, Claesson S. Isotope evidence for the Precambrian province and Caledonian metamorphism of high grade paragneiss from the Seve Nappes, Scandinavian Caledonides, Ⅱ. Ion microprobe zircon UThPb
[J］. Contribution to Mineralogy and Pretrology, 1987, 97: 205-217.
［19］刘敦一, 简平, 张旗, 等. 内蒙古图林凯蛇绿岩中埃达克岩SHRIMP测年：早古生代洋壳消减的证据
[J］. 地质学报, 2003, 77(3): 317-327.
［20］侯克军, 李延河, 邹天人, 等. LA-MC-ICP-MS锆石Hf同位素的分析方法及地质应用
[J］. 岩石学报, 2007, 23(10): 2595-2604.
［21］Elhlou S, Belousova E, Griffin W L, et al. Trace element and isotopic composition of GJred zircon standard by laser ablation
[J］. Geochimica et Cosmochimica Acta, 2006, 70(suppl): A158.
［22］Meisel T, Melcher F, Tomascak P, et al. ReOs isotopes in orogenic peridotite massifs in the Eastern Alps, Austria
[J］. Chemical Geology, 1997,143: 217-229.
［23］陈斌, 田伟, 刘安坤. 冀北小张家口基性—超基性杂岩的成因:岩石学、地球化学和Nd-Sr同位素证据
[J］. 高校地质学报, 2008,14(3): 295-303.
［24］McDonough W F, Sun S S. The composition of the Earth
[J］. Chemical Geology, 1995, 120: 223-253.
［25］简平, 刘敦一, 张旗, 等. 蛇绿岩及蛇绿岩中浅色岩的SHRIMP U-Pb测年
[J］. 地学前缘, 2003, 10(4): 339-456.
［26］周国庆.蛇绿岩研究新进展及其定义和分类的再讨论
[J］. 南京大学学报：自然科学版, 2008, 44(1):1-24.
［27］Pearce J A, Lippard S J, Roberts S. Characteristics and tectonic significance of suprasubduction zone ophiolites
[M］//Kokelaar B P, Howells M F. Marginal Basin Geology. London: Geological Society of Special Publication, 1984, 16: 77-94.
［28］Pearce J A. A users guide to basalt discrimination diagrams
[M］//Wyman D A. Trace Element Geochemistry of Volcanic Rocks: Applications for Massive Sulphide Exploration. Geological Association of Canada, Short Course Notes, 1996,12: 79-113.
［29］Rollinson H R. Using Geochemical Data: Evaluation, Presentation, Interpretation
[M］. London: Longman Group UK Ltd, 1993: 1-352.［30］Zhou M F, Yumul G P, Malpas J. Comparative study of platioumgroup elements in the Coto and Acjoe blocks of the Zambales Ophiolite Complex, Philippines
[J］. Island Arc, 2000, 9:556-564.［31］KurthVelz M, Sassen A, Galer S G. Geochemical and isotopic heterogeneities along an island arcspreading ridge intersection: Evidence from the Lewis Hills, Bay of Islands Ophiolite, Newfoundland
[J］. Journal of Petrology, 2004, 45: 635-668.
［32］Huot F, Hébert R, Turcotte B. A multistage magmatic history for the genesis of the Orford ophiolite (Quebec, Canada): a study of the Mt Chagnon massif
[J］. Canadian Journal of Earth Sciences, 2002, 39: 1201-1217.
［33］Ishikawa T, Nagaishi K, Umino S. Boninitic volcanism in the Oman ophiolite: Implications for thermal condition during transition from spreading ridge to arc
[J］. Geology, 2002, 30: 899-902.
［34］Forsythe R D, Nelson E P, Carr M J, et al. Pliocene neartrench magmatism in Southern Chile: A possible manifestation of ridge collision
[J］. Geology, 1986, 14: 23-27.
［35］朱弟成, 王立全, 潘桂棠, 等. 藏南特提斯喜马拉雅带中段中侏罗统遮拉组OIB型玄武岩浆的识别及其意义
[J］. 地质科技情报, 2004, 23 (3): 15-24.
［36］张德润.北山地区地球物理场特征及基底性质
[J］. 物探与化探, 2000, 24(2): 87-98.

[1]	HE Yunlong, ZHANG Guobin, YANG Yanchen, FENG Yue, KONG Jingui, CHEN Xingkai. Genesis and Tectonics of the Sipingshan Gold Deposit in Nadanhada Terrane, Sikhote-Alin Orogen: Constraints from Zircon U-Pb Chronology, Petrological and Fluid Geochemistry [J]. Geoscience, 2024, 38(01): 128-153.
[2]	LIU Qingzhan, JIANG Xiaojun, WANG Guo, LI Tianyu, LI Dongpeng. Petrogenesis and Tectonic Setting of the Nanpaotai Granite Porphyry in Inner Mongolia: Constraints from Zircon U-Pb Geochronology, Hf Isotopes, and Whole-rock Geochemistry [J]. Geoscience, 2024, 38(01): 154-168.
[3]	CHEN Yaoxin, LIU Wenheng, WANG Kaixing, LIU Xiaodong, SUN Liqiang, YIN Donghua. Petrogenesis and Tectonic Implications of the Zhongpai Fine-grained Granite in Qingshanbao, Gansu: Constraints from Geochemistry and Zircon U-Pb Chronology [J]. Geoscience, 2024, 38(01): 169-182.
[4]	ZHOU Yan, FAN Feipeng, KANG Congxuan, ZHAO Xilin, XIAO Fan, XU Mincheng, SHEN Mangting, ZHU Yiping. Geochronological and Geochemical Characteristics of the Tianchitang Granodiorite in Southwestern Fujian Province: Indications for the Regional Metallogeny [J]. Geoscience, 2023, 37(06): 1467-1481.
[5]	SONG Yanbo, WANG Jianping, SHEN Cunli, CHE Dong, YANG Wenhua, GUO Haijiao. Geological and Geochemical Characteristics of Ore-forming Granite Porphyry and Its Metallogenic Significance in the Zhalageamu Copper Deposit, Inner Mongolia [J]. Geoscience, 2023, 37(06): 1482-1494.
[6]	YANG Yuanjiang, DENG Changzhou, LI Chenglu, YANG Wenpeng, FU Anzong, ZHENG Bo, YUAN Maowen, ZHANG Lidong. Genesis and Tectonic Significance of Early Jurassic Cuiluan A-type Granite in the Lesser Hinggan Mountains [J]. Geoscience, 2023, 37(06): 1597-1608.
[7]	DU Jun, LIU Hongwei, CHANG Honglun. Experimental Study on Fluid Inclusion Synthesis in Plagioclase [J]. Geoscience, 2023, 37(06): 1634-1643.
[8]	CHEN Xi, XIAO Ling, WANG Mingyu, HAO Chenxi, WANG Feng, TANG Hongnan. Reconstruction of Provenance and Paleo-sedimentary Environment of the Chang 8 Oil Layer in the Southwestern Margin of the Ordos Basin: Evidence from Petrogeochemistry [J]. Geoscience, 2023, 37(05): 1264-1281.
[9]	KE Xing, ZHAO Qingfang, WU Piao, YANG Chuansheng, LIAO Jing, GONG Jianming. Characteristics and Evaluation of Cretaceous Source Rocks in the Northeastern Jiaolai Basin [J]. Geoscience, 2023, 37(05): 1358-1368.
[10]	WANG Ruiting, LI Qingfeng, QIN Xishe, ZHANG Bin, WANG Bowen, JI Yuefei. Zircon U-Pb Isotopic Geochronology,Bulk Geochemistry and Their Geological Significance of the Quartz Monzodiorite from the Taibaihe Region in the South Qinling Orogen [J]. Geoscience, 2023, 37(03): 562-572.
[11]	LU Hao, LIU Huan, HU Feng, WANG Haibo, WANG Chao, KONG Xiangchao. Record of Mesozoic Collision Orogeny on the Eastern Section of the West Kunlun Orogen: Evidence from Geochronology and Geochemistry of the Triassic Wenquan-Shenglidaban Granitic Intrusions, Xinjiang [J]. Geoscience, 2023, 37(03): 573-585.
[12]	WANG Xiangwei, ZHANG Baotao, YANG Haoqiang, HAN Jinguo. Geochronology, Geochemistry and Geological Significance of Tuanbaoshan Metamorphic Rocks in Haiyan, Qinghai Province [J]. Geoscience, 2023, 37(03): 586-598.
[13]	XUE Zhongkai, FAN Baocheng, HUANG Haoqing, TANG Weidong, GE Zhanlin, LI Pengwei, HU Jianhui, YANG Xiaoqi, GUO Yongchao, LI Kong. Geochronology and Geochemistry of the Intermediate-basic Dikes in the Beishan Area, Inner Mongolia: Implications for Tectonic Evolution of the Northern Margin of the Tarim Plate [J]. Geoscience, 2023, 37(03): 627-644.
[14]	LI Chenglu, FU Anzong, XU Wenxi, YUAN Maowen, LIU Baoshan, YANG Wenpeng, ZHAO Ruijun, ZHAO Zhonghai. Characteristics of Structural Superimposed Halo and Deep Prospecting Prediction of Yongxin Gold Deposit, Duobaoshan Area,Heilongjiang Province [J]. Geoscience, 2023, 37(03): 674-689.
[15]	DENG Ke, WANG Jingui, DONG Yujie, HE Linwu, YUAN Renhua, ZHANG Zeguo, CHEN Shouguan, XIN Tang. Genesis and Geological Significance of Late Cretaceous Intermediate Intrusions in Sangye, Tibet [J]. Geoscience, 2023, 37(02): 375-389.