西北太平洋边缘新生代盆地成因(中):连锁右行拉分裂谷系统

doi:10.11743/ogg20000301

Abstract

Abstract:

Based on the premise of plain strain thinned crust for the first order approximation,the paleo tectonics of northwest Pacific margin at the beginning of collision between Indian and Eurasian Plates have been reconstructed in this paper.The suture between the two plates was located at 26° southward,the north coast of South China Sea at about 14° southward,the north coast of Japan sea at about 4.5° south and Southwest Japan Island at about 8.5° south to the their present positions respectivily.The collision of Indian Plate and Eurasian Plate accelerated the north retreat of Eurasian Plate,caused right shear along the margin from Sumatera to Far East of Russia and the opening of marginal basins including South Chian Sea,Sulu Sea,Celebes Sea,Philippine Sea,Japan Sea,Okhotsk Sea and so on.These basins constituted a huge chain dextral pull-apart rift system in order to be balanced kinematically,Qinling and Bajkalj Stanovoj was the derived sinistral R′fault belt.Globally,the north retreat of Eurasia Plate possibly harmonized with south shift of North American Plate,and in the east margin of Pacific Plate,San Andreas Fault took dextral displacement.

Key words: Northwest Pacific Margin, marginal basin, pull-apart basin, Bajkal-Stanov Fault, San Andreas Fault, right-lateral shear

CLC Number:

P544.4

Xu Junyuan, Zhang Linyun. GENESIS OF CENOZOIC BASINS IN NORTHWEST PACIFIC MARGIN(2): LINKED DEXTRAL PULL-APART BASIN SYSTEM[J]. Oil & Gas Geology, 2000, 21(3): 185-190.

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[1]	Xu Junyuan, Zhang Linyun. GENESIS OF CENOZOIC BASINS IN NORTHWEST PACIFIC MARGIN(3): TECTONIC EVOTUTION OF POST RIFTING PERIOD [J]. Oil & Gas Geology, 2000, 21(4): 287-292.
[2]	Xu Junyuan, Zhang Linyun. GENESIS OF CENOZOIC BASINS IN NORTHWEST PACIFIC OCEAN MARGIN(1):COMMENTS ON BASIN-FORMING MECHANISM [J]. Oil & Gas Geology, 2000, 21(2): 93-98.

GENESIS OF CENOZOIC BASINS IN NORTHWEST PACIFIC MARGIN(2): LINKED DEXTRAL PULL-APART BASIN SYSTEM

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