LATE PALEOZOIC OCEAN-CONTINENT TRANSITION IN WEST JUNGGAR, CENTRAL ASIAN OROGENIC BELT:EVIDENCE FROM LATE CARBONIFEROUS RHYOLITES

SHI Jian-jie; CHEN Xuan-hua; DING Wei-cui; LI Bing

2017 Vol. 23, No. 1

Article Contents

Article navigation > Journal of Geomechanics > 2017 > 23(1): 150-160

Next Article Previous Article

SHI Jian-jie, CHEN Xuan-hua, DING Wei-cui, LI Bing. LATE PALEOZOIC OCEAN-CONTINENT TRANSITION IN WEST JUNGGAR, CENTRAL ASIAN OROGENIC BELT:EVIDENCE FROM LATE CARBONIFEROUS RHYOLITES[J]. Journal of Geomechanics, 2017, 23(1): 150-160.

Citation:

LATE PALEOZOIC OCEAN-CONTINENT TRANSITION IN WEST JUNGGAR, CENTRAL ASIAN OROGENIC BELT:EVIDENCE FROM LATE CARBONIFEROUS RHYOLITES

Chinese Academy of Geological Science, Beijing 100037, China

More Information

Corresponding author: CHEN Xuan-hua, xhchen@cags.ac.cn

Received Date: 12 October 2016

Publish Date: 25 February 2017

Abstract

Abstract

The late carboniferous rhyolites with columnar joints have been found in the West Junggar, then we studyed their tectonic environment through the geochemical characteristics. The rhyolites from the West Junggar have the characteristics of high K, low Na, so they belong to high-k calc-alkaline or cala-alkaline magmatic series. According to the Ⅴ patterns of the REE distribution patterns of the rhyolites, Eu is deficited, testifying the process of the crystallization differentiation of plagioclase. The rhyolites are enrichment of elements Rb、K (LILE), and deficient of Nb、Ta(HFSE), this is same to the characteristic of subduction zone magma. The study shows that the rhyolites which belong to A2 rock type derived from post-orogenic tectonic environment. The rhyolites and granites batholith have the same magmatic source and both belong to rich alkaline magmatism in orogenic environment. Similarly to the environment of the rhyolites in the east China, the study proves the existence of sea-land transition zone during the late Paleozoic, indicating that the Junggar Oceanic Plate subducted under the Kazakhstan Plate. Ocean subduction mainly developed in Karamay-Baogutu area, where the Junggar oceanic plates subducted to the northwest under the Kazakhstan plates. The rich alkaline magmatism in the post-orogenic stretch environment which the late carboniferous rhyolites with columnar joins occured, put an end to the ocean-land transition environment.
- the West Junggar /
- rhyolites /
- geochemical charateristics /
- ocean-land transition /
- tectonic evolution

FullText(HTML)

References

[1]	杨高学, 李永军, 刘振伟, 等.西准噶尔玛依拉山组志留纪玄武岩的地球化学特征及构造意义[J].大地构造与成矿学, 2012, 36(1):127~136. Google Scholar YANG Gao-xue, LI Yong-jun, LIU Zhen-wei, et al. Geochemistry of the Basalts from the Silurian Maylashan Formation in the West Junggar and its Tectonic Implications[J]. Geotectonica et Metallogenia, 2012, 36(1):127~136. Google Scholar
[2]	苏玉平, 唐红峰, 侯广顺, 等.新疆西准噶尔达拉布特构造带铝质A型花岗岩的地球化学研究[J].地球化学, 2006, 35(1):55~67. Google Scholar SU Yu-ping, TANG Hong-feng, HOU Guang-shun, et al. Geochemistry of aluminous A-type granites along Darabut tectonic belt in West Junggar, Xinjiang[J]. Geochimica, 2006, 35(1):55~67. Google Scholar
[3]	Chen, B., Arakawa, Y.. Elemental and Nd-Sr isotopic geochemistry of granitoids from the West Junggar foldbelt (NW China), with implications for Phanerozoic continental growth[J]. Geochimica et Cosmochimica Acta, 2005, 69(22):1307~1320. Google Scholar
[4]	高睿, 肖龙, 王国灿, 等.西准噶尔晚古生代岩浆活动和构造背景[J].岩石学报, 2013, 29(10):3413~3434. Google Scholar GAO Rui, XIAO Long, WANG Guo-can, et al. Paleozoic magmatism and tectonic setting in West Junggar[J]. Acta Petrologica Sinica, 2013, 29(10):3413~3434. Google Scholar
[5]	尹继元, 袁超, 孙敏, 等.新疆哈图早二叠世富镁闪长岩的时代、地球化学特征和可能的成因机制[J].岩石学报, 2012, 28(7):2171~2181. Google Scholar YIN Ji-yuan, YUAN Chao, SUN Min, et al. Age, geochemical features and possible petrogenesis mechanism of Early Permian magnesian diorite in Hatu, Xinjiang[J]. Acta Petrologica Sinica, 2012, 28(7):2171~2182. Google Scholar
[6]	涂光炽.初议中亚成矿域[J].地质科学, 1999, 34(4):397~404. Google Scholar TU Guang-zhi. On the central Asia metallogenic province[J]. Science Geologica Sinica, 1999, 34(4):397~404. Google Scholar
[7]	何国琦, 朱永峰.中国新疆及其邻区地质矿产对比研究[J].中国地质, 2006, 33(3):451~460. Google Scholar HE Guo-qi, ZHU Yong-feng. Comparativestudy of the geology and mineral resources in Xinjiang, China, and its adjacent regions[J]. Geology in China, 2006, 33(3):451~460. Google Scholar
[8]	朱永峰, 何国琦, 安芳.中亚成矿域核心地区地质演化与成矿规律[J].地质通报, 2007, 26(9):1167~1177. Google Scholar ZHU Yong-feng, HE Guo-qi, AN Fang. Geological evolution and metallogeny in the core part of the central Asia metallogenic domain[J]. Geological Bulletin of China, 2007, 26(9):1167~1177. Google Scholar
[9]	肖文交, 舒良树, 高俊, 等.中亚造山带大陆动力学过程与成矿作用[J].新疆地质, 2008, 26(1):4~8. Google Scholar XIAO Wen-jiao, SHU Liang-shu, GAO Jun, et al. Continental dynamics of the central Asian orogenic belt and its metallogeny[J]. Xinjiang Geology, 2008, 26(1):4~8. Google Scholar
[10]	陈宣华, 陈正乐, 杨农.区域成矿与矿田构造研究——构建成矿构造体系[J].地质力学学报, 2009, 15(1):1~19. Google Scholar CHEN Xuan-hua, CHEN Zheng-le, YANG Nong. Study on regional mineralization and ore-field structure:Bring on the building of mineralizing tectonic systems[J]. Journal of Geomechanics, 2009, 15(1):1~19. Google Scholar
[11]	陈宣华, 屈文俊, 韩淑琴, 等.巴尔喀什成矿带Cu-Mo-W矿床的辉钼矿Re-Os同位素年龄测定及其地质意义[J].地质学报, 2010, 84(9):1333~1348. Google Scholar CHEN Xuan-hua, QU Wen-jun, HAN Shu-qin, et al. Re-Os dating of molybdenites from Cu-Mo-W deposits in Balkhash metallogenic belt, Kazakhstan and its geological significance[J]. Acta Geologica Sinica, 2010, 84(9):1333~1348. Google Scholar
[12]	陈宣华, 杨农, 叶宝莹, 等.中亚成矿域多核成矿系统西准噶尔成矿带构造体系特征及其对成矿作用的控制[J].大地构造与成矿学, 2011, 35(3):325~338. Google Scholar CHEN Xuan-hua, YANG Nong, YE Bao-ying, et al.Western Junggar Tectonic System and Its Control on Metallogenesis in Multi-Core Metallogenic System, Central Asia[J]. Geotectonic et Metallogenia, 2011, 35(3):325~338. Google Scholar
[13]	Xiao, W. J., Windley, B. F., Sun, S., et al. A tale of amalgamation of three Permo-Triassic collage systems in Central Asia:Oroclines, sutures, and terminal accretion[J]. Annu. Rev. Earth Planet. Sci, 2015, 43:477~507. doi: 10.1146/annurev-earth-060614-105254 CrossRef Google Scholar
[14]	Heinhorst, J., Lehmann, B., Ermolov, P., et al. Paleozoic crustal growth and metallogeny of Central Asia:Evidence from magmatic-hydrothermal ore systems of Central Kazakhstan[J]. Tectonophysics, 2000, 328(1/2):69~87. Google Scholar
[15]	陈宣华, 聂兰仕, 丁伟翠, 等.西准噶尔走滑断裂系元素分布特征及其成矿意义[J].岩石学报, 2015, (2):371~387. Google Scholar
[16]	陈宣华, 陈正乐, 白彦飞, 等.中亚成矿域西部巴尔喀什-准噶尔成矿带晚古生代成矿作用大爆发[J].地球科学与环境学报, 2016, 38(3):285~305. Google Scholar CHEN Xuan-hua, CHEN Zheng-le, BAI Yan-fei, et al. Late Paleozoic concentrated mineralization of Balkhash-Junggar metallogenic belt in the western part of the Central Asian Metallogenic Domain[J]. Journal of Earth Science and the Environment, 2016, 38(3):285~305. Google Scholar
[17]	YANG Gao-xue, LI Yong-jun, Santosh, M., et al. Geochronology and geochemistry of basaltic rocks from the Sartuohai ophioliticmélange, NW China:Implications for a Devonian mantle plume within the Junggar Ocean[J]. Journal of Asian Earth Sciences, 2012, 59:141~155. doi: 10.1016/j.jseaes.2012.07.020 CrossRef Google Scholar
[18]	韩宝福, 季建清, 宋彪, 等.新疆准噶尔晚古生代陆壳垂向生长(Ⅰ):后碰撞深成岩浆活动的时限[J].岩石学报, 2006, 22(5):1077~1086. Google Scholar HAN Bao-fu, JI Jian-qing, SONG Biao, et al. Late Paleozoic vertical growth of continental crust around the Junggar Basin, Xinjiang, China (Part Ⅰ):Timing of post-collisional plutonism[J]. Acta Petrologica Sinica, 2006, 22(5):1077~1086 Google Scholar
[19]	李永军, 王祚鹏, 段丰浩, 等.新疆西准噶尔额敏前陆盆地的构造特征及其演化[J].大地构造与成矿学, 2016, 40(3):419~428. Google Scholar LI Yong-jun, WANG Zuo-peng, DUAN Feng-hao, et al. Tectonics andevolution of the E'min foreland basin in West Junggar, Xinjiang[J]. Geotectonica et Metallogenia, 2016, 40(3):419~428. Google Scholar
[20]	Le, Bas, M. J., Le, Maitre, R. W., Streckeisen, A., et al. A chemical classification of volcanic rocks on the total alkali-silica diagram[J]. Petrol. 1986, 27(3):745~750. doi: 10.1093/petrology/27.3.745 CrossRef Google Scholar
[21]	黄鹏辉, 陈宣华, 王志宏, 等.西准噶尔成矿带晚古生代花岗岩类岩浆活动及其构造意义[J].大地构造与成矿学, 2016, 40(1):145~160. Google Scholar HUANG Peng-hui, CHEN Xuan-hua, WANG Zhi-hong, et al. Late Paleozoicgranitic magmatism in West Junggar metallogenic belt (Xinjiang), Central Asia, and its tectonic implication[J]. Geotectonica et Metallogenia, 2016, 40(1):145~160. Google Scholar
[22]	Peccerillo, R., Taylor, S. R.. Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, northern Turkey[J]. Contributions to Mineralogy and Petrology, 1976, 58(1):63~81. doi: 10.1007/BF00384745 CrossRef Google Scholar
[23]	Middlemost, E. A. K.. Magmas and magmatic rocks[M]. London:Longman, 1985:1~266. Google Scholar
[24]	Wilson, M.. Igneous petrogenesis:A global tectonic approach[M]. London:Unwin Hyman, 1989:1~466. Google Scholar
[25]	Boynton, W. V.. Cosmochemistry of the rare earth elements:Meteorite studies[J]. Developement in Geochemistry, 1984, 2:63~114. doi: 10.1016/B978-0-444-42148-7.50008-3 CrossRef Google Scholar
[26]	Sun, S. S., McDonough, W. F.. Chemical and isotopic systematics of oceanic basalts:Implications for mantle composition andprocesses[C]//Saunders A D, Norry M J. Magmatism in the ocean basins. Oxford:Blackwell, 1989:313~346. Google Scholar
[27]	Whalen, J. B., Currie, K. L., Chappell, et al. A-type granites:Geochemical characteristics, discrimination and petrogenesis[J]. Contrib. Mineral. Petrol., 1987, 95:407~419. doi: 10.1007/BF00402202 CrossRef Google Scholar
[28]	Eby, G. N.. Chemical subdivision of the A-type granitoids:Petrogenetic and tectonic implications[J]. Geology, 1992, 20(7):641~644. doi: 10.1130/0091-7613(1992)020<0641:CSOTAT>2.3.CO;2 CrossRef Google Scholar
[29]	Pearce, J. A., Harris, N. B. W., Tindle, A. G..Trace element discrimination diagrams for the tectonic interpretation of granitic rocks[J]. J Petrol, 1984, 25(4):956~983. doi: 10.1093/petrology/25.4.956 CrossRef Google Scholar
[30]	Pearce, J. A..Sources and settings of granitic rocks[J]. Episodes, 1996, 19(4):120~125 Google Scholar
[31]	徐松年.浙江中生代酸性火山岩柱状节理构造的发现及其地质意义[J].岩石学报, 1995, (03):325~332. Google Scholar XU Song-nian. Dsicovery of columnar jointstructure of mesozolc acidic volcanic rocks in ZheJiang province and its geological siginificance[J]. Acta Petrologica Sinca, 1995, 31(3):325~332. Google Scholar
[32]	胡小猛, 许红根, 陈美君, 等.雁荡山流纹岩地貌景观特征及其形成发育规律[J].地理学报, 2008, (3):270~279. doi: 10.11821/xb200803005 CrossRef Google Scholar HU Xiao-meng, XU Honggen, CHEN Mei-jun, et al. The rhyolite landforms and development law in Yandang Mt[J]. Acta Geographica Sinica. 2008, (3):270~279. doi: 10.11821/xb200803005 CrossRef Google Scholar
[33]	邢广福, 陶奎元, 杨祝良, 等.中国东南沿海中生代火山岩成因研究现状与展望[J].矿物岩石地球化学通报, 1999, 18(3):189~193. Google Scholar XING Guang-fu, TAO Kui-yuan, YANG Zhu-liang, et al., The summarizing about the reasons causing the formation of Mesozoic igneous rock in southeast China near the reason[J]. The Bulletin of Mineralogy, Petrology and Geochemistry, 1999, 18(3):189~193. Google Scholar
[34]	赵恒乐, 陈宣华, 屈文俊, 等.巴尔喀什成矿带博尔雷斑岩铜矿床地质特征与成矿时代[J].地质力学学报, 2010, (4):340~348. Google Scholar ZHAO Heng-le, CHEN Xuan-hua, QU Wen-jun, et al., Geological characteristics and metallogenic age of borly porphyry cu deposits in balkhash metallogenic belt, Kazakhstan[J].Journal of geomechanics, 2010, (4):340~348. Google Scholar
[35]	张耀玲, 张绪教, 胡道功, 等.东昆仑造山带纳赤台群流纹岩SHRIMP锆石U-Pb年龄[J].地质力学学报, 2010, (1):21~27+50. Google Scholar ZHANG Yao-ling, ZHANG Xu-jiao, HU Dao-gong, et al., Zircon U-Pb age for rhyolitic ruffs of the naocangjiangou formation in the east kulun orogenic belt and their implication[J].Journal of geomechanics, 2010, (1):21~27+50. Google Scholar
[36]	陈宣华, 王小凤, 杨风, 等.阿尔金山北缘早古生代岩浆活动的构造环境[J].地质力学学报, 2001, (3):193~200. Google Scholar CHEN Xuan-hua, WANG Xiao-feng, YNAG Feng, et al. Tectonic environments of magmatism in earlyPaleozoic in the north altyn tagh, China[J]. Journal of geomechanics, 2001, (3):193~200. Google Scholar