Geochronology, Geochemistry and Geological Significance of Cumulates in Qingshuiquan Region, South Altyn Tagh

DUAN Xingxing; ZHANG Yue; YUAN Yanwei; HAN Baohua; DONG Yue; HE Junling

doi:10.12401/j.nwg.2022041

2023 Vol. 56, No. 4

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Article navigation > Northwestern Geology > 2023 > 56(4): 103-115

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DUAN Xingxing, ZHANG Yue, YUAN Yanwei, HAN Baohua, DONG Yue, HE Junling. 2023. Geochronology, Geochemistry and Geological Significance of Cumulates in Qingshuiquan Region, South Altyn Tagh. Northwestern Geology, 56(4): 103-115. doi: 10.12401/j.nwg.2022041

Citation:

DUAN Xingxing, ZHANG Yue, YUAN Yanwei, HAN Baohua, DONG Yue, HE Junling. 2023. Geochronology, Geochemistry and Geological Significance of Cumulates in Qingshuiquan Region, South Altyn Tagh. Northwestern Geology, 56(4): 103-115. doi: 10.12401/j.nwg.2022041

Geochronology, Geochemistry and Geological Significance of Cumulates in Qingshuiquan Region, South Altyn Tagh

1.
Shihezi University, Shihezi 832003, Xinjiang, China
2.
Center of Urumqi Natural Resources Comprehensive Survey, China Geological Survey, Urumqi 830057, Xinjiang, China
3.
Chengdu University of Technology, Chengdu 610059, Sichuan, China

More Information

Corresponding author: ZHANG Yue, 413027602@qq.com

Received Date: 18 June 2022

Revised Date: 20 November 2022

Publish Date: 20 August 2023

Abstract

Abstract

In order to discuss the diagenetic age and regional geological structure of the cumulates in Qingshuiquan area, LA−ICP−MS zircon dating was conduct for the cumulates distributed along the south side of the main fault in the southern margin of Altyn Tagh, and the whole−rock geochemistry of the cumulates, pyroxenites, gabbros and diorites was studied. LA−ICP−MS zircon U−Pb dating of the gabbro yielded a mean ²⁰⁶Pb/²³⁸U age of (464.8±1.3) Ma. Geochemical analysis indicates that the main elements of Qingshuiquan cumulates are characterized by low TiO₂ and high Mg^#. The chondrite−normalized REE patterns are “A flat type”, which is consistent with the REE distribution of enriched mid−ocean ridge basalt (E−MORB). According to the geochemical characteristics of Qingshuiquan cumulate rock and the regional geological tectonic background, it is considered that Qingshuiquan cumulate rock is the product of homologous magma differentiation and evolution, which was formed in the extensional tectonic background, indicating that the plate collision in the southern margin of Altun in the early Middle Ordovician has basically ended.
- cumulates /
- zircon U−Pb ages /
- geochemistry /
- Qingshuiquan

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References

[1]	曹玉亭, 刘良, 王超, 等. 阿尔金南缘塔特勒克布拉克花岗岩的地球化学特征、锆石U-Pb定年及Hf同位素组成[J]. 岩石学报, 2010, 26(11): 3259-3271 Google Scholar CAO Yuting, LIU Liang, WANG Chao, et al. Geochemical Zircon U-Pb Dating and Hf Isotope Compositions Studies for Tatelekebulake Granite in South AItyn Tagh[J]. Acta Petrobgica Sinica, 2010, 26(11): 3259-3271. Google Scholar
[2]	董俊, 黄华良, 尹建华, 等. 东昆仑石头坑德镁铁-超镁铁质岩地质特征及成矿条件分析[J]. 西北地质, 2017, 50(02): 49-60 doi: 10.3969/j.issn.1009-6248.2017.02.005 CrossRef Google Scholar DONG Jun, HUANG Hualiang, YI Jianhua, et al. Geological Characteristics of the Shitoukengde Mafic-ultramafic Rocks in East Kunlun and Related Metallogenic Conditions[J]. Northwestern Geology, 2017, 50(02): 49-60. doi: 10.3969/j.issn.1009-6248.2017.02.005 CrossRef Google Scholar
[3]	郭金城, 徐旭明, 陈海燕, 等. 新疆阿尔金长沙沟超镁铁质岩锆石U-Pb年龄及其地质意义[J]. 西北地质, 2014, 47(4): 170-177 doi: 10.3969/j.issn.1009-6248.2014.04.018 CrossRef Google Scholar GUO Jincheng, XU Xuming, CHEN Haiyan, et al. Zircon U-Pb Age and Geological Implications of Ultramafic Rocks in Changshagou, Altun Area, Xinjiang Province[J]. Northwestern Geology, 2014, 47(4): 170-177. doi: 10.3969/j.issn.1009-6248.2014.04.018 CrossRef Google Scholar
[4]	高栋, 吴才来, 郜源红, 等. 南阿尔金玉苏普阿勒克塔格花岗岩体锆石U-Pb年代学、地球化学特征及地质意义[J]. 地球科学, 2019, 44(11): 3812-3828. Google Scholar GAO Dong, WU Cailai, HAO Yuanhong, et al. Zircon U-Pb geochronology, geochemistry of the Yusupuleke granite pluton in south Altyn and its geological implications[J]. Earth Science, 2019, 44(11): 3812-3828. Google Scholar
[5]	校培喜, 高晓峰, 康磊, 等. 阿尔金-东昆仑西段成矿带地质背景研究[M]. 北京: 地质出版社, 2014 Google Scholar JIAO Peixi, GAO Xiaofeng, KANG Lei, et al. Study on the Geological Background of the Metallogenic Belt in the Western Section of Altun-East Kunlun[M]. Beijing: Geological Publishing House, 2014. Google Scholar
[6]	康磊, 校培喜, 高晓峰, 等. 茫崖二长花岗岩、石英闪长岩的年代学、地球化学及岩石成因: 对阿尔金南缘早古生代构造-岩浆演化的启示[J]. 岩石学报, 2016, 32(06): 1731-1748 Google Scholar KANG Lei, JIAO Peixi, GAO Xiaofeng, et al. Chronology, Geochemistry and Petrogenesis of Monzonitic Granite and Quartz Diorite in Mangai Area: Its Inspiration to Early Paleozoic Tectonic-magmatic Evolution of the Southern Altyn Tagh[J]. Acta Petrologica Sinica, 2016, 32(06): 1731-1748. Google Scholar
[7]	康磊. 南阿尔金高压—超高压变质带早古生代多期花岗质岩浆作用及其地质意义[D]. 西安: 西北大学, 2014 Google Scholar KANG Lei. Early Paleozoic Multi-stage Granitic Magmatism and the Geological Significance in the South Altyn Tagh HP-UHP Metamorphic Belt[D]. Xi’an: Northwest University, 2014. Google Scholar
[8]	康磊, 刘良, 曹玉亭, 等. 阿尔金南缘塔特勒克布拉克复式花岗质岩体东段片麻状花岗岩的地球化学特征、锆石U-Pb定年及其地质意义[J]. 岩石学报, 2013, 29(09): 3039-3048 Google Scholar KANG Lei, LIU Liang, CAO Yuting, et al. Geochemistry, Zircon U-Pb Age and Its Geological Significance of the Gneissic Granite from the Eastern Segment of the Tatelekebulake Somposite Granite in the South Altyn Tagh[J]. Acta Petrologica Sinica, 2013, 29(09): 3039-3048. Google Scholar
[9]	侯红星, 张蜀冀, 胡新茁, 等. 华北克拉通怀安县西洋河地区高压基性麻粒岩锆石U-Pb同位素年龄及地球化学特征[J]. 西北地质, 2022, 55(4): 240-254. Google Scholar HOU Hongxing, ZHANG Shuji, HU Xinzhuo, et al. Geochemical Characteristics and Zircon U-Pb Isotope Age of the High-pressure Basic Granulite in the Xiyanghe Area of the North China Craton[J]. Northwestern Geology, 2022, 55(4): 240-254. Google Scholar
[10]	刘良, 康磊, 曹玉亭, 等. 南阿尔金早古生代俯冲碰撞过程中的花岗质岩浆作用[J]. 中国科学: 地球科学, 2015, 45(08): 1126-1137 Google Scholar LIU Liang, KANG Lei, CAO Yuting, et al. Early Paleozoic Granitic Magmatism Related to the Processes from Subduction to Collision in South Altyn[J], NW China. Science China: Earth Sciences, 2015, 45(08): 1126-1137. Google Scholar
[11]	刘良, 车自成, 王焰, 等. 阿尔金高压变质岩带的特征及其构造意义[J]. 岩石学报, 1999, (01): 58-65. Google Scholar LIU Liang, CHE Zicheng, WANG Yan, et al. The Petrological Characters and Geotectonic Setting of High-pressure Metamorphic Rock Belts in Altun Mountains[J]. Acta Petrologica Sinica, 1999, 15(1): 57-64. Google Scholar
[12]	刘军, 息朝庄, 黄波, 等. 柴达木西北缘大通沟南山北闪长岩年代学、地球化学特征及其地质意义[J]. 西北地质, 2022, 55(2): 93-105. Google Scholar LIU Jun, XI Chaozhuang, HUANG Bo, et al. Geochronology, Geochemistry and Geological Significance of Thediorite in Datonggou Nanshanbei, Northwestern Qaidam Basin[J]. Northwestern Geology, 2022, 55(2): 93−105. Google Scholar
[13]	刘永顺, 于海峰, 辛后田, 等. 阿尔金山地区构造单元划分和前寒武纪重要地质事件[J]. 地质通报, 2009, 28(10): 1430-1438 doi: 10.3969/j.issn.1671-2552.2009.10.009 CrossRef Google Scholar LIU YongShun, YU Haifeng, XIN Houtian, et al. Tectonic Units Division and Precambrian Significant Geological Events in Altyn Tagh Mountain, China[J]. Geological Bulletin of China, 2009, 28(10): 1430-1438. doi: 10.3969/j.issn.1671-2552.2009.10.009 CrossRef Google Scholar
[14]	李向民, 马中平, 孙吉明, 等. 阿尔金断裂南缘约马克其镁铁-超镁铁岩的性质和年代学研究[J]. 岩石学报, 2009, 25(04): 862-872 Google Scholar LI Xiangmin, MA ZhongPing, SUN Jiming, et al. Characteristics and Age Study about the Yuemakeqi Mafic-ultramagic Rock in the Southern Altyn Fault[J]. Acta Petrologica Sinica, 2009, 25(04): 862-872. Google Scholar
[15]	马中平, 李向民, 孙吉明, 等. 阿尔金山南缘长沙沟镁铁-超镁铁质层状杂岩体的发现与地质意义—岩石学和地球化学初步研究[J]. 岩石学报, 2009, 25(04): 793-804 Google Scholar MA Zhongping, LI Xiangmin, SUN Jiming, et al. Discovery of Layered Mafic-ultramafic Intrusion in Changshagou, Altyn Tagh, and Its Geological Implication: A Pilot Study on Its Petrological and Geochemical Characteristics[J]. Acta Petrologica Sinica, 2009, 25(04): 793-804. Google Scholar
[16]	孙吉明, 马中平, 唐卓, 等. 阿尔金南缘鱼目泉岩浆混合花岗岩LA-ICP-MS测年与构造意义[J]. 地质学报, 2012, 86(02): 247-257 doi: 10.3969/j.issn.0001-5717.2012.02.004 CrossRef Google Scholar SUN JiMing, MA Zhongping, TANG Zhuo, et al. LA-ICP-MS Zircon Dating of the Yumuquan Magma Mixing Granite in the Southern Altyn Tagh and Its Tectonic Significance[J]. Acta Geologica Sinica, 2012, 86(02): 247-257. doi: 10.3969/j.issn.0001-5717.2012.02.004 CrossRef Google Scholar
[17]	孙书勤, 张成江, 赵松江. 大陆板内构造环境的微量元素判别[J]. 大地构造与成矿学, 2007, 31(01): 104-109 doi: 10.3969/j.issn.1001-1552.2007.01.012 CrossRef Google Scholar SUN Shuqin, ZHANG Chengiang, ZHAO Songjiang. Identification of the tectonic settings for continental intraplate by trace elements[J]. Geotectonica et Metallogenia, 2007, 31(1): 104-109. doi: 10.3969/j.issn.1001-1552.2007.01.012 CrossRef Google Scholar
[18]	王立社, 杨鹏飞, 段星星, 等. 阿尔金南缘中段清水泉斜长花岗岩同位素年龄及成因研究[J]. 岩石学报, 2016a, 32(03): 759-774 Google Scholar WANG Lishe, YANG Pengfei, DUAN Xingxing, et al. Isotopic Age and Genesis of Plagiogranite from Qingshuiquan Area in the Middle of South Altyn Tagh[J]. Acta Petrologica Sinica, 2016, 32(03): 759-774. Google Scholar
[19]	王立社, 李智明, 杨鹏飞, 等. 阿尔金清水泉斜长角闪岩同位素定年及其地球化学特征[J]. 大地构造与成矿学, 2016b, 40(04): 839-852 Google Scholar WANG Lishe, LI Zhiming, YANG Pengfei, et al. Isotopic Age and Geochemical Characteristics of Qingshuiquan Amphibolite in South Altyn Tagh[J]. Geotectonica et Metallogenia, 2016b, 40(04): 839-852. Google Scholar
[20]	王超, 刘良, 张安达, 等. 阿尔金造山带南缘岩浆混合作用: 玉苏普阿勒克塔格岩体岩石学和地球化学证据[J]. 岩石学报, 2008, 24(12): 2809-2819 Google Scholar WANG Chao, LIU Liang, ZHANG Anda, et al. Geochemistry and Petrography of Early Paleozoic Yusupuleke Tagh Rapakivi-textured Granite Complex, South Altyn: An Example for Magma Mixing[J]. Acta Petrologica Sinica, 2008, 24(12): 2809-2819. Google Scholar
[21]	吴才来, 郜源红, 雷敏, 等. 南阿尔金茫崖地区花岗岩类锆石SHRIMP U-Pb定年、Lu-Hf同位素特征及岩石成因[J]. 岩石学报, 2014, 30(08): 2297-2323 Google Scholar WU Cailai, GAO Yuanhong, LEI Min, et al. Zircon SHRIMP U-Pb Dating, Lu-Hf Isotopic Characteristics and Petrogenesis of the Palaeozoic Granites in Mangya Area, Southern Altun, NW China[J]. Acta Petrologica Sinica, 2014, 30(8): 2297-2323. Google Scholar
[22]	吴锁平, 吴才来, 陈其龙. 阿尔金断裂南侧吐拉铝质A型花岗岩的特征及构造环境[J]. 地质通报, 2007, 26(10): 1385-1392 doi: 10.3969/j.issn.1671-2552.2007.10.016 CrossRef Google Scholar WU Suoping, WU Cailai, Chen Qilong. Characteristics and Tectonic Setting of the Tula Aluminous A- type Granite at theSouth Side of the Altyn Tagh Fault, NW China[J]. Geological Bulletin of China, 2007, 26(10): 1385-1392. doi: 10.3969/j.issn.1671-2552.2007.10.016 CrossRef Google Scholar
[23]	许志琴, 杨经绥, 张建新, 等. 阿尔金断裂两侧构造单元的对比及岩石圈剪切机制[J]. 地质学报, 1999, (03): 193-205 doi: 10.3321/j.issn:0001-5717.1999.03.001 CrossRef Google Scholar XU Zhiqin, YANG Jinsui, ZHANG Jianxin, et al. A Comparison Between the Tectonic Units on the Two Sides of the Altun Sinistral Strike-slip Fault and the Mechanism of Lithospheric Shearing[J]. Acta Geologica Sinica, 1999, (03): 193-205. doi: 10.3321/j.issn:0001-5717.1999.03.001 CrossRef Google Scholar
[24]	杨文强, 刘良, 丁海波, 等. 南阿尔金迪木那里克花岗岩地球化学、锆石U-Pb年代学与Hf同位素特征及其构造地质意义[J]. 岩石学报, 2012, 28(12): 4139-4150 Google Scholar YANG Wenqiang, LIU Liang, DING Haibo, et al. Geochemistry, Geochronology and Zircon Hf Isotopes of the Dimunalike Granite in South Altyn Tagn and Its Geological Significance[J]. Acta Petrologica Sinica, 2012, 28(12): 4139-4150. Google Scholar
[25]	张若愚, 曾忠诚, 陈宁, 等. 阿尔金造山带南缘中―晚奥陶世正长花岗岩的发现及其地质意义[J]. 地质通报, 2018, 37(04): 545-558 Google Scholar ZHANG Ruoyu, ZENG Zhongcheng, CHEN Ning, et al. The Discovery of Middle-Late Ordovician Syenogranite on the Southern Margin of Altun Orogenic Belt and Its Geological Significance[J]. Geological Bulletin of China, 2018, 37(4): 545-558. Google Scholar
[26]	Cabanis B, Lecolle M. Le Diagramme La/10-Y/15-N/8: Un Outil Pour La Discrimination Des Séries Volcaniques et La Mise en Évidence Des Processus De Mélange et/ou de Contamination Crustale[J]. C R Acad Sci Ser II, 1989, 309: 2023-2029. Google Scholar
[27]	Coleman R G. Ophiolite-Ancient Oceanic Lithosphere?[M]. Berlin: Springger Verlag, 1977. Google Scholar
[28]	Dilek, Yildirim. Collision tectonics of the Mediterranean region: causes and consequences[J]. Collision Tectonics of the Mediterranean Region: Causes and Consequences. Geological Society of America Special Paper, 2006, 409(1): 1-13. Google Scholar
[29]	Donnelly K E, Goldstein S L, Langmuir S H, et al. Origin of Enriched Ocean Ridge Basalts and Implications for Mantle Dynamics[J]. Earth and Planetary Science Letters, 2004, 226(3): 347-366. Google Scholar
[30]	Feng R, Kerrich R. Geochemistry of Fine-Grained Clastic Sediments in the Archean Abitibi Greenstone Belt, Canada: Implications for Provenance and Tectonic Setting[J]. Geochimica et Cosmochimica Acta, 1990, 54(4): 1061-1081. doi: 10.1016/0016-7037(90)90439-R CrossRef Google Scholar
[31]	Hirschmann M M, Stolpe E M. A Possible Role for Garnet Pyroxenite in the Origin of the “Garnet Signature” in MORB[J]. Contribtions to Mineralogy and Petrology, 1996, 124(2): 185-208. doi: 10.1007/s004100050184 CrossRef Google Scholar
[32]	Irvine T N, Baragar W R A. A Guide to the Chemical Classification of the Common Volcanic Rocks[J]. Canadian Journel of Earth Science, 1971, 8: 523-548. doi: 10.1139/e71-055 CrossRef Google Scholar
[33]	Ludwig K R. Isoplot: A Geochronological Toolkit for Microsoft Excel[J]. California, Berkeley: Berkeley Geochronol Center Spec Publ, 2003, 4: 1-71. Google Scholar
[34]	Li Y S, Zhang J X, Yu S Y, et al. Origin of Early Paleozoic Garnet Peridotite and Associated Garnet Pyroxenite in the South Altyn Tagh, NW China: Constraints from Geochemistry, SHRIMP U-Pb Zircon Dating and Hf Isotopes[J]. Journal of Asian Earth Sciences, 2015, 100: 60-67. doi: 10.1016/j.jseaes.2015.01.004 CrossRef Google Scholar
[35]	Liu L, Wang C, Cao Y T, et al. Geochronology of Multi-stage Metamorphic Events: Constraints on Episodic Zircon Growth from the UHP Eclogite in the South Altyn, NW China[J]. Lithos, 2012, 136-139: 10-26. doi: 10.1016/j.lithos.2011.09.014 CrossRef Google Scholar
[36]	Maurice A E, Basta F F, Khiamy A A. Neoproterozoic nascent island arc volcanism from the Nubian Shield of Egypt: magma genesis and generation of continental crust in intra-oceanic arcs[J]. Lithos, 2012, 132: 1-20. Google Scholar
[37]	Niu Y L, Regelous M, Wendt I J, et al. Geochemistry of Near-EPR Seamounts: Importance of Source vs. Process and the Origin of Enriched Mantle Component[J]. Earth and Planetary Science Letters, 2002, 199(3): 327-345 Google Scholar
[38]	Polat A, Hofmann A W, Rosing M T. Boninite-like Volcanic Rocks in the 3.7-3.8Ga Isua Greenstone Belt, West Greenland: Geochemical Evidence for Intra-oceanic Subduction Zone Processes in the Early Earth[J]. Chemical Geology, 2002, 184: 231-254. doi: 10.1016/S0009-2541(01)00363-1 CrossRef Google Scholar
[39]	Roex A. Source regions of mid-ocean ridge basalts: evidence for enrichment processes[J]. Mantle Metasomatism, 1987: 389-422. Google Scholar
[40]	Sun S S, McDonough W F. Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mmantle Composition and Processes[J]. Geological Society London Special Publications, 1989, 42(1): 313-345. doi: 10.1144/GSL.SP.1989.042.01.19 CrossRef Google Scholar
[41]	Wang C, Liu L, Yang W Q, et al. Provenance and Ages of the Altyn Complex in Altyn Tagh: Implications for the Early Neoproterozoic Evolution of Northwestern China[J]. Precambrian Research, 2013, 230: 193-208. doi: 10.1016/j.precamres.2013.02.003 CrossRef Google Scholar