GEOCHEMISTRY OF TRIASSIC DEPOSITS IN EASTERN LINQING DEPRESSION AND ITS TECTONIC SIGNIFICANCE

Wang Mingjian; MENG Xiangjun; LI Di; CHEN Xi; ZHU Xiaoqing

doi:10.16028/j.1009-2722.2017.06002

2017 Vol. 33, No. 6

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Article navigation > Marine Geology Frontiers > 2017 > 33(6): 9-15

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Wang Mingjian, MENG Xiangjun, LI Di, CHEN Xi, ZHU Xiaoqing. GEOCHEMISTRY OF TRIASSIC DEPOSITS IN EASTERN LINQING DEPRESSION AND ITS TECTONIC SIGNIFICANCE[J]. Marine Geology Frontiers, 2017, 33(6): 9-15. doi: 10.16028/j.1009-2722.2017.06002

Citation:

Wang Mingjian, MENG Xiangjun, LI Di, CHEN Xi, ZHU Xiaoqing. GEOCHEMISTRY OF TRIASSIC DEPOSITS IN EASTERN LINQING DEPRESSION AND ITS TECTONIC SIGNIFICANCE[J]. Marine Geology Frontiers, 2017, 33(6): 9-15. doi: 10.16028/j.1009-2722.2017.06002

GEOCHEMISTRY OF TRIASSIC DEPOSITS IN EASTERN LINQING DEPRESSION AND ITS TECTONIC SIGNIFICANCE

1.
The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China
2.
Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
3.
Qingdao institute of marine geology, CGS, Qingdao 266071, China
4.
School of Energy Resources, China University of Geosciences (Beijing), Beijing 100083, China
5.
North China Sea Air-borne Detachment of China Marine Surveillance, Qingdao 266000, China

More Information

Corresponding author: MENG Xiangjun, sdqdmxj@126.com

Received Date: 07 March 2017

Publish Date: 28 June 2017

Abstract

Abstract

The mineral composition of clastic sedimentary rocks is an important indicator to tectonic setting of the sediments. In this paper, we analyzed the major and trace elements of the Triassic clastic deposits sampled from the Eastern Linqing Depression. Results show that, the Triassic samples are mainly greywacke and arkose with low maturity. The parent rock of the clastic sedimentary rock is consistent with continental crust in general which mainly are sedimentary rocks and granite, and the Eastern Linqing Depression was a tectonic environment of active continental margin close to the continental island arc in Early-Middle Triassic Epoch. The dynamic mechanism can be connected to the subduction of the Qinling ocean crust beneath the North China plate in early stage and the collision between the Yangtze plate and North China plate later on. This study provides the geochemical evidence for determining the tectonic environment of the south side to the eastern North China in Triassic period.
- Triassic /
- geochemistry /
- tectonic setting /
- Eastern Linqing Depression

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References

[1]	姚纪明, 于炳松, 陈建强, 等.中扬子北缘上侏罗统-白垩系沉积岩地球化学特征与构造背景分析[J].地球化学, 2009, 38(3):231-241. doi: 10.3321/j.issn:0379-1726.2009.03.002 CrossRef Google Scholar
[2]	Roser B P, Korsch R J. Determination of tectonic setting of sandstone-mudstone suites using SiO₂ content and K₂O/Na₂O ratios[J]. Journal of Geology, 1986, 94(5): 635-650. doi: 10.1086/629071 CrossRef Google Scholar
[3]	Taylor S R, McLennan S M. The Continental Crust: Its Composition and Evolution[M]. Oxford: Blackwell, 1985: 1-312. Google Scholar
[4]	Bhatia M R, Crook K A W. Trace element characteristics of graywackes and tectonic setting discrimination of sedimentary basins[J].Contributions to Mineralogy and Petrology, 1986, 92(2): 181-193. doi: 10.1007/BF00375292 CrossRef Google Scholar
[5]	Odigi M I, Amajor L C. Ceochemical characterization of Cretaceous sandstones from the Southern Benue Trough, Nigeria[J]. Chinese Journal of Geochemistry 2009, 28(1):44-54. doi: 10.1007/s11631-008-0384-8 CrossRef Google Scholar
[6]	屈李华, 刘喜方, 李金锁, 等.北羌塘三叠系康鲁组沉积岩地球化学特征及其物源区和构造背景分析[J].现代地质, 2015, 29(4):789-803. doi: 10.3969/j.issn.1000-8527.2015.04.008 CrossRef Google Scholar
[7]	刘本立.地球化学基础[M].北京:北京大学出版社, 1994:186-187. Google Scholar
[8]	王明健, 张训华, 何登发, 等.临清坳陷东部断裂系统与上古生界煤成气成藏[J].中国矿业大学学报, 2013, 42(3):394-404. Google Scholar
[9]	王明健, 张训华, 何登发, 等.临清坳陷东部早—中侏罗世地层剥蚀量恢复与原型盆地[J].特种油气藏, 2012, 19(6):17-21. doi: 10.3969/j.issn.1006-6535.2012.06.004 CrossRef Google Scholar
[10]	Condie K C. Chemical composition and evolution of the upper continental crust: contrasting results from surface samples and shales[J].Chemical Geology, 1993, 104(1-4):1-37. doi: 10.1016/0009-2541(93)90140-E CrossRef Google Scholar
[11]	Bhatia M R. Plate tectonics and geochemical composition of sandstones[J]. Journal of Geology, 1983, 91(6): 611-627. doi: 10.2307/30064711 CrossRef Google Scholar
[12]	吴智平, 侯旭波, 李伟.华北东部地区中生代盆地格局及演化过程探讨[J].大地构造与成矿学, 2007, 31(4):385-399. doi: 10.3969/j.issn.1001-1552.2007.04.001 CrossRef Google Scholar