Arcuate Pamir in the Paleogene? Insights from a review of stratigraphy and sedimentology of the basin fills in the foreland of NE Chinese Pamir, western Tarim Basin
Arcuate Pamir in the Paleogene? Insights from a review of stratigraphy and sedimentology of the basin fills in the foreland of NE Chinese Pamir, western Tarim Basin
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古近纪弓形帕米尔高原？
DOI：
10.1016/j.earscirev.2018.03.003
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发表时间：
2018-05
影响因子：
12.1
通讯作者：
Yang Rong
中科院分区：
文献类型：
--
作者：
Chen Xinwei;Chen Hanlin;Lin Xiubin;Cheng Xiaogan;Yang Rong
The tectonic evolution of the Pamir bears essential information for understanding intracontinental tectonic processes within the context of India-Asia convergence. However, it is unclear whether the arcuate shape of the Pamir is entirely the result of the India-Asia collision, or may have been in part an inherited, pre-Cenozoic feature. In this study, we address the evolution of the NE Chinese Pamir during the Paleogene by reviewing the stratigraphy of twelve sections in the western Tarim Basin and the establishment of sedimentary facies. The results indicate three episodes of deposition of alluvial coarse sediments in the foreland regions of NE Chinese Pamir during the (1) early Paleocene, (2) late Paleocene to early Eocene and (3) middle Eocene to Oligocene, respectively. These are correspondingly attributed to (1) retroarc deformation in an Andean-type margin of the southern Asia during subduction of the Neo-Tethys Ocean, (2) the immediate response in the Pamir to the India-Asia collision, and (3) continued India-Asia convergence. The alluvial conglomerates with grain-size up to 5–10 cm, imply a transport distance <60 km from the fan apex. This result, together with the 20–50 km northward thrust displacements, suggests that the orogen/basin boundary between the Pamir and the Tarim-Alai Basin was located less than ca. 80–110 km to the south from the present location of the Main Pamir Thrust during the Paleogene, indicating the arcuate shape of the Pamir was already largely established by the Paleogene, rather than entirely a result of the India-Asia continental collision.
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影响因子：
4.2
作者：
C. Lukens;B. Carrapa;B. Singer;G. Gehrels
通讯作者：
C. Lukens;B. Carrapa;B. Singer;G. Gehrels
影响因子：
5.3
作者：
E. Sobel;Jie Chen;R. Heermance
通讯作者：
E. Sobel;Jie Chen;R. Heermance
DOI：
10.5860/choice.30-1532
发表时间：
1992
期刊：
--
影响因子：
--
作者：
G. Einsele
通讯作者：
G. Einsele
影响因子：
2.9
作者：
A. C. Robinson;A. Yin;O. Lovera
通讯作者：
A. C. Robinson;A. Yin;O. Lovera
今青藏高原东北部海原—六盘山地区的隆升历史：地层学和热年代学的综合制约
影响因子：
1.8
作者：
Lin, Xiubin;Chen, Hanlin;Xiao, Jun
通讯作者：
Xiao, Jun