THE PETROGENESIS AND TECTONIC SIGNIFICANCES OF SILURIAN WEST-LUOTOUJUAN ROCKS FROM BEISHAN NIUJUANZI AREA IN GANSU PROVINCE, NW CHINA

YU Ji-yuan; JI Bo; GUO Lin

Volume 23 Issue 2

Apr. 2017

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YU Ji-yuan, JI Bo, GUO Lin, 2017. THE PETROGENESIS AND TECTONIC SIGNIFICANCES OF SILURIAN WEST-LUOTOUJUAN ROCKS FROM BEISHAN NIUJUANZI AREA IN GANSU PROVINCE, NW CHINA. Journal of Geomechanics, 23 (2): 253-263.

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THE PETROGENESIS AND TECTONIC SIGNIFICANCES OF SILURIAN WEST-LUOTOUJUAN ROCKS FROM BEISHAN NIUJUANZI AREA IN GANSU PROVINCE, NW CHINA

YU Ji-yuan^{1, 2, 3
,},
JI Bo^{1, 2, 3},
GUO Lin^{1, 2}

1.
Xi'an Center of Geological Survey, CGS, Xi'an 710054, Shannxi, China
2.
Orogen Research Center of China Geological Survey, Xi'an 710054, Shannxi, China
3.
Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits, Ministry of Land and Resources, Xi'an 710054, Shannxi, China

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Received: 2016-11-03
Published: 2017-04-01

Abstract

Abstract

West-Luotuojuan Adakitesin Beishan Niujuanzi Area belongs to Peraluminous calcium alkaline magma series with a high content of SiO₂(>57.94%), Al₂O₃(>16.66%), a low content of MgO( < 4.32%), a relatively high Na₂O/K₂O ratio, displaying Na-rich feature. In respect of trace elements, it has a high content of Sr (589×10^-6~1170×10^-6), a low content of Y (4.60×10^-6~13.90×10^-6) and Yb (0.43×10^-6~1.32×10^-6).The differentiation of light and heavy rare earth is obvious ((La/Dy)_N=4.60~13.87, (La/Yb)_N=7.17~20.58), and there is not obvious anomaly of Eu (Eu/Eu^*=0.85~1.32). Rich in light rare earth and large ionlithophile elements, and the loss of high field-strength elements Nb, Ta, Ti and heavy rare earth HREE, are similar with the typical Adakite rocks which formed by subducted oceanic crust melting.It is believed that West-Luotuojuan Adakite is a partial melting product which warm oceanic crust in Silurian (U-Pb age of 428.9 Ma) period moving to Gongpo spring-east Qiyi mountain early Paleozoic active continental margin in the process of subduction. The study of the rock mass provides evidence for the view that Beishan orogenic belt closed in the late early Paleozoic and split anew in the early late Paleozoic.
- Adakite,
- U-Pb age,
- Silurian,
- partial melting of the subducted oceanic crust,
- West-Luotuojuan rock mass,
- Beishanin Gansu province

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References(39)

References

[1]	Kay RW. Aleutian magnesianandesites: melts from subducted Pacific ocean crust[J]. Journal of Volcanology and Geothermal Research, 1978, 4(1/2): 117~132.
[2]	Defant M J, DrummondM S. Derivation of some modern arc magmas by melting of young subductedlithosphere[J]. Nature, 1990, 347(6294): 662~665. doi: 10.1038/347662a0
[3]	王焰, 张旗, 钱青.埃达克岩(adakite)的地球化学特征及其构造意义[J].地质科学, 2000, 35(2): 251~256. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200002017.htm WANG Yan, ZHANG Qi, QIAN Qing. Adakite: geochemical characteristics and tectonic significances[J]. Scientia GeologicaSinica, 2000, 35(2): 251~256. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200002017.htm
[4]	Sajona F G, Maury R C, Bellon H, et al. Initiation of subduction and the generation of slab melts in western and eastern Mindanao, Philippines[J]. Geology, 1993, 21(11): 1007~1010. doi: 10.1130/0091-7613(1993)021<1007:IOSATG>2.3.CO;2
[5]	罗照华, 柯珊, 谌宏伟.埃达克岩的特征、成因及构造意义[J].地质通报, 2002, 21(7): 436~440. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200207014.htm LUO Zhao-hua, KE Shan, CHEN Hong-wei. Characteristics, petrogenesis and tectonic implications of adakite[J]. Geological Bulletin of China, 2002, 21(7): 436~440. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200207014.htm
[6]	殷勇, 张旗, 殷先明, 等.甘肃北山埃达克岩特征及其找矿意义—几个与埃达克质岩石有关的Cu、Mo、Au矿实例[J].甘肃地质, 2009, 18(1): 6~11. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ200901005.htm YIN Yong, ZHANG Qi, YIN Xian-ming, et al. Features of Adakite in Beishan of Gansu province and significance for prospecting: several examples of Cu, Mo and Au deposit related to Adakites[J]. Gansu Geology, 2009, 18(1): 6~11. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ200901005.htm
[7]	谢春林, 杨建国, 王立社, 等.甘肃北山地区古亚洲南缘古生代岛弧带位置的讨论[J].地质学报, 2009, 83(11): 1584~1600. doi: 10.3321/j.issn:0001-5717.2009.11.004 XIE Chun-lin, Yang Jian-guo, WANG Li-she, et al. Disscussion on the location of Paleozoic island arc zone on the south margin of Paleo-Asian Ocean in the Beishan Area of Gansu Province[J]. Acta Geologica Sinica, 2009, 83(11): 1584~1600. doi: 10.3321/j.issn:0001-5717.2009.11.004
[8]	黄增保, 金霞, 李葆华, 等.甘肃红石山地区印支期花岗岩地球化学特征及成因讨论[J].西北地质, 2011, 44(1): 10~19. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI201101003.htm HUANG Zeng-bao, JIN Xia, LI Bao-hua, et al. Petrological and geochemical characteristics of Indosinian granites in Hongshishan area, Gansu province and discussion on its genesis[J]. Northwestern Geology, 2011, 44(1): 10~19. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI201101003.htm
[9]	刘明强.甘肃北山造山带红石山地区埃达克质花岗岩类的发现及其地质意义[J].岩石矿物学杂志, 2007, 26(3): 232~238. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW200703003.htm LIU Ming-qiang. Geochemical characteristics and geological significance of adakiticgranitoids in Hongshishan area of the Beishan orogenic belt, Gansu Province[J]. Acta Petrologicaet Mineralogica, 2007, 26(3): 232~238. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW200703003.htm
[10]	毛启贵, 肖文交, 韩春明, 等.北山柳园地区中志留世埃达克质花岗岩类及其地质意义[J].岩石学报, 2010, 26(2): 584~596. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201002021.htm MAO Qi-gui, XIAO Wen-jiao, HAN Chun-ming, et al. Discovery of Middle Silurian adakite granite and its tectonic significance in Liuyuan area, Beishan Moutains, NW Chins[J]. Acta Petrologica Sinica, 2010, 26(2): 584~596. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201002021.htm
[11]	王启航, 王晓伟, 杨春霞, 等.甘肃金塔县老虎山晚古生代华北型富镁埃达克岩的发现及构造动力学意义[J].甘肃地质, 2014, 23(1): 28~34. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ201401004.htm WANG Qi-hang, WANG Xiao-wei, YANG Chun-xia, et al. Late Paleozoic Adakitie rocks in Laohushan of Gansu and their tectonodynamics significance[J]. Gansu Geology, 2014, 23(1): 28~34. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ201401004.htm
[12]	张伟, 王金荣, 陈万峰, 等.阿拉善右旗地区晚石炭世埃达克岩的发现及其大地构造意义[J].高校地质学报, 2014, 20(3): 378~387. http://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201403004.htm ZHANG Wei, WANG Jin-rong, CHEN Wan-feng, et al. The discovery of the Carboniferous Adakite and its Tectonic Implications in AlxaYouqi[J]. Geological Journal of China Universities, 2014, 20(3): 378~387. http://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201403004.htm
[13]	杨合群, 李英, 李文明, 等.北山成矿构造背景概论[J].西北地质, 2008, 41(1): 22~28. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200801001.htm YANG He-qun, LI Ying, LI Wen-ming, et al. General discussion on Metallogenitic tectonic setting of Beishan mountain, northwestern China[J]. Northwestern Geology, 2008, 41(1): 22~28. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200801001.htm
[14]	杨合群, 李英, 赵国斌, 等.新疆-甘肃-内蒙古衔接区地层对比及其意义[J].西北地质, 2009, 42(4): 60~75. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200904012.htm YANG He-qun, LI Ying, ZHAO Guo-bin, et al. Stratigraphic correlation and its significance of Xinjiang-Gansu-Inner Mongolia join area[J]. Northwestern Geology, 2009, 42(4): 60~75. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200904012.htm
[15]	何世平, 任秉琛, 姚文光, 等.甘肃内蒙古北山地区构造单元划分[J].西北地质, 2002, 35(4): 30~40. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200204003.htm HE Shi-ping, REN Bing-chen, YAO Wen-guang, et al. The division of tectonic units of Beishan area, Gansu-Inner Mongolia[J]. Northwestern Geology, 2002, 35(4): 30~40. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200204003.htm
[16]	左国朝.北山板块构造及成矿规律[M].北京:北京大学出版社, 1990. ZUO Guo-chao. Plate Tectonics and Metallogenic Regularities in Beishan Region[M]. Beijing: Peking University Publication, 1990.
[17]	左国朝, 刘义科, 刘春燕.甘新蒙北山地区构造格局及演化[J].甘肃地质学报, 2003, 12(1): 1~15. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ200301000.htm ZUO Guo-chao, LIU Yi-ke, LIU Chun-yan. Framework and evolution of the Tectonic Structure in Beishan area across Gansu Province, Xinjiang autonomous region and Inner Mongolia autonomous region[J]. Acta Geologica Gansu, 2003, 12(1): 1~15. http://www.cnki.com.cn/Article/CJFDTOTAL-GSDZ200301000.htm
[18]	刘雪亚, 王荃.中国西部北山造山带的大地构造及其演化[J].地学研究, 1995, 28: 37~48. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDJ199500001007.htm LIU Xue-ya, WANGQuan. Tectonics of orogenic belts in Beishan Mts., western China and their evolution[J]. Geological Research, 1995, 28: 37~48. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGDJ199500001007.htm
[19]	聂凤军.北山地区金属矿床成矿规律及找矿方向[M].北京:地质出版社, 2002, 1~499. NIE Feng-jun.Metallogenic Studies and Ore Prospecting in the Conjunction Area of Inner Mongolia Autonomous Region, Gansu Province and Xinjiang Uygur Autonomous Region (Beishan Mt.), Northwest China[M]. Beijing:Geological Publishing House, 2002, 1~499.
[20]	龚全胜, 刘明强, 梁明宏, 等.北山造山带大地构造相及构造演化[J].西北地质, 2003, 36(1): 11~17. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200301002.htm GONG Quan-sheng, LIU Ming-qiang, LIANG Ming-hong, et al. The tectonic facies and tectonic evolution of Beishan orogenic belt, Gansu[J]. Northwestern Geology, 2003, 36(1): 11~17. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI200301002.htm
[21]	张克信, 潘桂棠, 何卫红, 等.中国构造－地层大区划分新方案[J].地球科学-中国地质大学学报, 2015, 40(2): 206~233. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201502003.htm ZHANG Ke-xin, PAN Gui-tang, HE Wei-hong, et al. New division of tectonic-strata superregion in China[J]. Earth Science-Journal of China University of Geosciences, 2015, 40(2): 206~233. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201502003.htm
[22]	龚全胜, 梁明宏, 刘明强, 等.马鬃山幅1:25万区域地质图[M].兰州:甘肃省地质调查院, 2001. GONG Quan-sheng, LIANG Ming-hong, LIU Ming-qiang, et al. 1:250000 geology map of Mazhongshan[M]. Lanzhou: Gansu Geological Survey Institute, 2001.
[23]	Yuan H L, Gao S, Liu X M, et al. Accurate U-Pb age and trace element determinationsof zircon by laser ablation-inductively coupled plasma-mass spectrometry[J]. Geostandards and Geoanalytical Research, 2004, 28(3): 353~370. doi: 10.1111/ggr.2004.28.issue-3
[24]	Sun S S, McDonough W F. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes[A]. Saunders AD, Norry MJ. Magmatism in Ocean Basins[C]. London:Geological Society, Special Publications, 1989, 42: 313~345.
[25]	Garrison J M, Davidson J P. Dubious case for slab melting in the Northern volcanic zone of the Andes[J]. Geology, 2003, 31(6): 565~568. doi: 10.1130/0091-7613(2003)031<0565:DCFSMI>2.0.CO;2
[26]	Martin H. Adakitic magmas: modern analogues of Archaean granitoids[J]. Lithos, 1999, 46(3): 411~429. doi: 10.1016/S0024-4937(98)00076~0
[27]	张旗.有关埃达克岩实验应用中几个问题的探讨[J].岩石矿物学杂志, 2015, 34(2): 257~270. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201502012.htm ZHANG Qi. A tentative discussion on the experimental study of adakite[J]. ActaPetrologicaetMineralogica, 2015, 34(2): 257~270. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201502012.htm
[28]	Defant M J, Drummond M S. Mount St. Helens: potential example of the partial melting of the Subducted lithosphere in a volcanic arc[J]. Geology, 1993, 21(6): 547~550. doi: 10.1130/0091-7613(1993)021<0547:MSHPEO>2.3.CO;2
[29]	Defant M J, Xu J F, Kepezhinskas P, et al. Adakites: some variations on a theme[J]. ActaPetrologicaSinica, 2002, 18(2): 129~142. http://en.cnki.com.cn/Article_en/CJFDTotal-YSXB200202000.htm
[30]	Kay R W, Ramos V A, Marquez M. Evidencein Cerro Pampa volcanic rocks for slab-melting prior to ridge-trench collision in southern South America[J]. The Journal of Geology, 1993, 101(6): 703~714. doi: 10.1086/648269
[31]	Peacock S M, Rushmer T, Thompson A B. Partial melting of Subducting oceanic crust[J]. Earth and Planetary Science Letters, 1994, 121(1/2): 227~244. http://d.wanfangdata.com.cn/NSTLQK_10.1016~0012~821X(94)90042~6.aspx
[32]	熊小林, 赵振华, 白正华, 等.西天山阿吾拉勒adakite型钠质中酸性岩及地壳垂向增生[J].科学通报, 2001, 46(4): 281~287. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200104002.htm XIONG Xiao-lin, ZHAO Zhen-hua, BAI Zheng-hua, et al. Adakite-type sodium-rich rocks in Awulale Mountain of west Tianshan: significance for the vertical growth of continental crust[J]. Chinese Science Bulletin, 2001, 46(1): 811~817. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200104002.htm
[33]	张旗, 王焰, 王元龙.埃达克岩与构造环境[J].大地沟与成矿学, 2003, 27(2): 101~108. http://www.cnki.com.cn/Article/CJFDTOTAL-DGYK200302000.htm ZHANG QI, WANG Yan, WANG Yuan-long. On the relationship between adakite and its tectonic setting[J]. Geotectonicaet Metallogenia, 2003, 27(2): 101~108. http://www.cnki.com.cn/Article/CJFDTOTAL-DGYK200302000.htm
[34]	续海金, 马昌前.实验岩石学对埃达克岩成因的限定—兼论中国东部富钾高Sr/Y比值花岗岩类[J].地学前缘, 2003, 10(4): 417~427. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200304014.htm XU Hai-jin, MA Chang-qian. Constraints of experimental petrology on the origin of adakites, and petrogenesis of Mesozoic K-rich and high Sr/Y ratio granitoids in eastern China[J]. Earth Science Frontiers, 2003, 10(4): 417~427. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200304014.htm
[35]	Prouteau G, Scaillet B, Pichavant M, et al. Evidence for mantle metasomatism by hydrous silicic melts derived from subducted oceanic crust[J]. Nature, 2001, 410(6825): 197~200. doi: 10.1038/35065583
[36]	Rapp R P, Watson E B, Miller C F. Partial melting of amphibolite/eclogite and the origin of Archean trondhjemites and tonalites[J]. Precambrian Research, 1991, 51(1/4): 1~25. http://www.sciencedirect.com/science/article/pii/030192689190092O
[37]	王莉, 曾令森, 高利娥, 等.藏南侏罗纪残留洋弧的地球化学特征及其大地构造意义[J].岩石学报, 2012, 28(6): 1741~1754. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201206005.htm WANG Li, ZENG Ling-sen, GAO Li-e, et al. Remnant Jurassic intra-oceanic arc system in Southern Tibet: geochemistry and tectonic implications[J]. Acta Petrologica Sinica, 2012, 28(6): 1741~1754. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201206005.htm
[38]	边千韬, Pospelov I I, 李惠民, 等.青海省布青山早古生代末期埃达克岩的发现及其构造意义[J].岩石学报, 2007, 23(5): 925~934. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200705008.htm BIAN Qian-tao, Pospelov I I, LI Hui-min, et al. Discovery of the end-Early Paleozoic ada-kite in the Buqingshan area, Qinghai province, and its tectonic implications[J]. Acta Petrologica Sinica, 2007, 23(5): 925~934. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200705008.htm
[39]	余吉远, 李向民, 梁积伟, 等.甘新蒙北山地区古生代构造演化研究-北山古生代洋盆开启、闭合时限最新进展[J].新疆地质, 2012, 30(2): 205~209. http://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201202021.htm YU Ji-yuan, LI Xiang-min, LIANG Ji-wei, et al. Evolution of thegeological structure in Beishan area across Gansu province, Xinjiang autonomous region and Inner Mongolia autonomous region-Constraints on the timing of opening and closing of the Beishan Paleozoic oceanic basin[J]. Xinjiang Geology, 2012, 30(2): 205~209. http://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201202021.htm