| Citation: |
WANG Wei, MENG Yong, WANG Kai, SU Xiaohong, YU Jiyuan, LÜ Shun, GUO Zhouping, QUAN Shoucun. 2019: Zircon U-Pb ages, geochemical characteristics and petrogenesis of ringed pluton in the Hancaohu area, eastern Tianshan Mountains of Xinjiang. Geological Bulletin of China, 38(5): 777-789.
|
Choosing the Hancaohu intermediate-acid annular pluton distributed in East Tianshan Mountains of Xinjiang as the study object, the authors used LA-ICP-MS zircon U-Pb isotope chronology and geochemical characteristics to study the petrogenesis and geological significance of the pluton. The results indicate that the age of the earliest intrusive tonalite pluton is 275.0 ±2.9Ma (MSWD=4.8), suggesting that its emplacement epoch is Permian. The Al2O3 of the ringed pluton is 14.46%~17.05%, and A/CNK is 0.93~1.09, suggesting metaluminous and weak peraluminous series. The rocks are enriched in K2O, and their MgO content is 0.71%~2.84% and Mg# value is 33.3~48.6. Their trace elements are high in Sr and low in Y, the content of Sr is 217×10-6~740×10-6, that of Y is 4.26×10-6~21.4×10-6, and Sr/Y ratio is 16.87~145.07. They are enriched in LILEs(Rb, Sr, Ba) and depleted in HFSEs(Nb, Ta, Ti). They are characterized by LREE enrichment and HREE depletion, implying that they were formed in an area with stable garnet, rutile and unstable plagioclase, belonging to the transitional stage from amphibolite facies to eclogite facies; they were probably formed by underplating in the same period. The variation of main elements and race elements content and discontinuous LREE/HREE show that the pluton was not formed by crystallization evolution of one magmatic event, and the plutons of different lithologies are not separately crystallized from each other. Comprehensive analyses show that the lithospheric extension after Permian collision in Huangshan-Jingerquan area caused asthenosphere mantle upwelling and lithosphere delamination. The lithosphere vertical accretion at the boundary of the underplating crust and mantle induced the partial melting and produced high K calc-alkaline magma. With the instant intrusion of the magma, the difference of partial melting and newly formed mantle source components led to the formation of Hancaohu granitic pluton. It is shown that there was violent intermediate-acid magmatism in the Hancaohu area in Permian, and it was the response to tectonic-magmatism evolution in Permian in East Tianshan Mountains.
|
Chen Y J, Chen H Y, Zaw K, et al. Geodynamic settings and tectonic model of skarn gold deposits in China:An overview[J]. Ore Geology Reviews, 2007, 31(1/4):139-169. http://cn.bing.com/academic/profile?id=ca5271a66f4f9ac2d6437b6ef9c97bec&encoded=0&v=paper_preview&mkt=zh-cn
|
|
Chen Y J, Pirajno F, Wu G, et al. Epithermal deposits in North Xinjiang, NW China[J]. International Journal of Earth Sciences, 2012, 101(4):889-917. doi: 10.1007/s00531-011-0689-4
|
|
Huang X W, Qi L, Gao J F, et al. First reliable Re-Os ages of pyrite and stable isotope compositions of Fe(-Cu) deposits in the Hami region, Eastern Tianshan Orogenic Belt, NW China[J]. Resource Geology, 2013, 63(2):166-187. doi: 10.1111/rge.12003
|
|
Pirajno F. The Geology and Tectonic Settings of China's Mineral Deposits[M]. Berlin:Springer, 2013:1-671.
|
|
Mao J W, Goldfarb R T, Wang Y T, et al. Late Paleozoic base and precious metal deposits, East Tianshan, Xinjiang, China:Characteristics and geodynamic setting[J]. Episodes, 2005, 28(1):23-36. http://d.old.wanfangdata.com.cn/NSTLQK/NSTL_QKJJ027203778/
|
|
顾连兴, 张遵忠, 吴昌志, 等.关于东天山花岗岩与陆壳垂向增生的若干认识[J].岩石学报, 2006, 22(5):1103-1122. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200605005
|
|
Zhang L C, Qin K Z, Xiao W J. Multiple mineralization events in the eastern Tianshan district, NW China:Isotopic geochronology and geological significance[J]. Journal of Asian Earth Sciences, 2008, 32(2/4):236-246.
|
|
周涛发, 袁峰, 张达玉, 等.新疆东天山觉罗塔格地区花岗岩类年代学、构造背景及其成矿作用研究[J].岩石学报, 2010, 26(2):478-502. http://d.old.wanfangdata.com.cn/Periodical/ysxb98201002012
|
|
王银宏, 薛春纪, 刘家军, 等.新疆东天山土屋斑岩铜矿床地球化学、年代学、Lu-Hf同位素及其地质意义[J].岩石学报, 2014, 30(11):3383-3399. http://d.old.wanfangdata.com.cn/Periodical/ysxb98201411022
|
|
Wang Y H, Zhao C B, Zhang F F, et al. SIMS zircon U-Pb and molybdenite Re-Os geochronology, Hf isotope, and whole-rock geochemistry of the Wunugetushan porphyry Cu-Mo deposit and granitoids in NE China and their geological significance[J]. Gondwana Research, 2015, 28:1228-1245. doi: 10.1016/j.gr.2014.10.001
|
|
吴福元, 李献华, 杨进辉, 等.花岗岩成因研究的若干问题[J].岩石学报, 2007, 23(6):1217-1238. doi: 10.3969/j.issn.1000-0569.2007.06.001
|
|
张连昌, 秦克章, 英基丰, 等.东天山土屋-延东斑岩铜矿带埃达克岩及其与成矿作用的关系[J].岩石学报, 2004, 20(2):259-268. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200402008
|
|
Wang Y H, Xue C J, Wang J P, et al. Early Carboniferous adakiticrocks in the area of the Tuwu deposit, eastern Tianshan, NW China:Slab melting and implications for porphyry copper mineralization[J]. Journal of Asian Earth Sciences, 2015, 103:332-349. doi: 10.1016/j.jseaes.2014.09.032
|
|
Wang Y H, Xue C J, Wang J P, et al. Petrogenesis of magmatism in the Yandongregion of Eastern Tianshan, Xinjiang:Geochemical, geochronological and Hf isotope Constraints[J]. International Geology Review, 2015, 57(9/10):1130-1151.
|
|
黄汲清, 任纪舜, 姜春发, 等.中国大地构造及其演化[M].北京:科学出版社, 1980:1-124.
|
|
王洪亮, 徐学义, 何世平, 等.中国天山及邻区地质图及说明书(1:100万)[M].北京:地质出版社, 2008:22-23.
|
|
Anderson T. Correction of common lead in U-Pb analyses that do not report 204Pb[J]. Chemical Geology, 2002, 192(1/2):59-79.
|
|
Rubatto D. Zircon trace element geochemistry:Partitioning with garnet and link between U-Pb ages and metamorphism[J]. Chemical Geology, 2002, 184:123-138. doi: 10.1016/S0009-2541(01)00355-2
|
|
Kosler J, Fonneland H, Sylvester P. U-Pb dating of detrital zircons for sediment provenance studies)A comparison of laser ablation LAICPMS and SIMS techniques[J]. Chemical Geology, 2002, 182:605-618. doi: 10.1016/S0009-2541(01)00341-2
|
|
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, 16:1589-1604. doi: 10.3321/j.issn:0023-074X.2004.16.002
|
|
王海然, 赵红格, 乔建新, 等.锆石U-Pb同位素测年原理及应用[J].地质与资源, 2013, 3:229-242. doi: 10.3969/j.issn.1671-1947.2013.03.012
|
|
Le Maitre. Igneous Rocks:A classification and Glossary of Terms (2nd edition)[M]. Cambridge University Press, 2002:23-86.
|
|
Maniar P D, Piccoli P M. Tectonic discrimination of granitiods[J]. Geological Society of American Bulletin, 1989, 101:635-643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2
|
|
邱家骧.岩浆岩岩石学[M].北京:地质出版社, 1985:282-287.
|
|
Collins W J. Nature and origin of A type granites with particular referen-ce to Southeast Austrilia[J]. Contributions to Mineralogy and Petrology, 1982, 80:189-200. doi: 10.1007/BF00374895
|
|
Sun S S, McDonough W F. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[C]//Saunders A D, Norry M J. Magmatism in the Ocean Basins. Geological Society, London, Special Publications, 1989, 42(1): 313-345. https://www.researchgate.net/publication/231575101_Chemical_and_isotopic_systematics_of_oceanic_basalts_Implications_for_mantle_composition_and_processes
|
|
熊小林, 蔡志勇, 牛贺才, 等.东天山晚古生代埃达克岩成因及铜金成矿意义[J].岩石学报, 2005, 3:967-976. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200503034
|
|
赵振华, 王强, 熊小林, 等.新疆北部的两类埃达克岩[J].岩石学报, 2006, 5:1249-1265. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200605016
|
|
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, 9:2249-2269. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200609001
|
|
罗照华, 黄忠敏, 柯珊.中酸性岩石的基本问题[J].地质评论, 2007, 53(增刊):180-226. http://cdmd.cnki.com.cn/Article/CDMD-11415-1017126687.htm
|
|
张旗, 潘国强, 李承东, 等.花岗岩混合问题:与玄武岩对比的启示——关于花岗岩研究的思考之一[J].岩石学报, 2007, 23(5):1141-1152. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200705026
|
|
Boztu D, Arehart G B, Platevoet B, et al. High-K, calc-alkaline I-type granitoids from the composite Yozgat batholith generated in a post-collisional setting following continent-oceanic island arc collision in central Anatolia, Turkey[J]. Mineralogy and Petrology, 2007, 91(3):191-223. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=102c6d0220333665da3f27b4d633a738
|
|
Pitcher W S. Granite type and tectonic environment[C]//Hsu K J. Mountain Building Process, London, 1983: 19-40.
|
|
张旗, 王焰, 李承东, 等.花岗岩按照压力的分类[J].地质通报, 2006, 25(11):1274-1278. doi: 10.3969/j.issn.1671-2552.2006.11.004
|
|
Petford N, Atherton M. Na-rich partial melts from newly underplated basaltic crust:the Cordillera Blanca bathloith, Peru[J]. Journal of Petrology, 1996, 37:1491-1521. doi: 10.1093/petrology/37.6.1491
|
|
金振民, 高山.底侵作用(underplating)及其壳-幔演化动力学意义[J].地质科技情报, 1996, (2):1-7. doi: 10.1016-j.bmcl.2010.06.083/
|
|
韩宝福, 何国琦, 吴泰然.天山早古生代花岗岩锆石U-Pb定年、岩石地球化学特征及其大地构造意义[J].新疆地质, 2004, 22(1):4-11. doi: 10.3969/j.issn.1000-8845.2004.01.002
|
|
王京彬, 王玉往, 周涛发.新疆北部后碰撞与幔源岩浆有关的成矿谱系[J].岩石学报, 2008, 24(4):743-752. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200804013
|
|
王涛, 李伍平, 李金宝, 等.东天山东段同造山到后造山花岗岩幔源组分的递增及陆壳垂向生长意义-Sr、Nd同位素证据[J].岩石学报, 2008, 24(4):762-772. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ysxb98200804015
|
|
肖序常, 汤耀庆, 冯益民, 等.新疆北部及邻区大地构造[M].北京:地质出版社, 1992:1-169.
|
|
夏林圻, 李向民, 夏祖春, 等.天山石炭-二叠纪大火成岩省裂谷火山作用与地幔柱[J].西北地质, 2006, 39(1):1-49. doi: 10.3969/j.issn.1009-6248.2006.01.001
|
|
王京彬, 王玉往, 何志军.东天山大地构造演化的成矿示踪[J].中国地质, 2006, 33(3):461-469. doi: 10.3969/j.issn.1000-3657.2006.03.002
|
|
秦克章, 方同辉, 王书来, 等.东天山板块构造分区、演化与成矿地质背景研究[J].新疆地质, 2002, 20(4):302-308. doi: 10.3969/j.issn.1000-8845.2002.04.002
|
|
马瑞士, 王赐银, 叶尚夫.东天山构造格架及地壳演化[M].南京:南京大学出版社, 1993:16-78.
|
|
周济元, 崔炳芳, 肖惠良, 等.新疆康古尔-黄山对接碰撞带的存在、成矿模式及成矿预测[J].火山地质与矿产, 2001, 22(4):252-262. doi: 10.3969/j.issn.1671-4814.2001.04.004
|
|
李锦轶, 王克卓, 孙桂华, 等.东天山吐哈盆地南缘古生代活动陆缘残片:中亚地区古亚洲洋板块俯冲的地质记录[J].岩石学报, 2006, 22(5):1087-1102. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200605004
|
|
顾连兴, 胡受奚, 于春水, 等.论博格达俯冲撕裂型裂谷的形成与演化[J].岩石学报, 2001, 17(4):585-597. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200104009
|
|
唐俊华, 顾连兴, 张遵忠, 等.东天山黄山-镜儿泉过铝花岗岩矿物学、地球化学及年代学研究[J].岩石学报, 2008, 24(5):921-946. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200805001
|
|
韩宝福, 季建清, 宋彪, 等.新疆喀拉通克和黄山东含铜镍矿镁铁-超镁铁杂岩体的SHRIMP锆石U-Pb年龄及其地质意义[J].科学通报, 2004, 49(22):2324-2328. doi: 10.3321/j.issn:0023-074X.2004.22.012
|
|
顾连兴, 张遵忠, 吴昌志, 等.东天山黄山-镜儿泉地区二叠纪地质-成矿-热事件:幔源岩浆内侵及其地壳效应[J].岩石学报, 2007, 23(11):2869-2880. doi: 10.3969/j.issn.1000-0569.2007.11.017
|
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: