The uplifting processes of the Tibetan plateau since 0.5 ma BP - Evidence from hydrothermal activity in the Gangdise Belt

被引：21

作者：

Hou, ZQ ^{[1
]}

Li, ZQ

Qu, XM

Gao, YF

Hua, LC

Zheng, MP

Li, SR

Yuan, WM

机构：

[1] Chinese Acad Geosci, Inst Mineral Deposits, Beijing 100037, Peoples R China

[2] Shijiazhuang Econ Coll, Shijiazhuang 050000, Peoples R China

[3] China Univ Geosci, Beijing 100083, Peoples R China

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 2001年 / 44卷 / Suppl 1期

关键词：

Tibetan Plateau; uplifting mechanism and epoch; hydrothermal activity; ESR ages;

D O I：

10.1007/BF02911969

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

There is no final conclusion yet on the uplifting mechanism and epoch of the Tibetan Plateau, which is a hot point of the geological research. This paper discusses the epoch and scales of the hydrothermal activities based on the ESR ages of hot-spring sediments. The ESR ages show that hydrothermal activities mainly happened in four periods: 50 X 10(4)a, 50 X 10(4)-47 X 10(4), 40 X 10(4)-35 X 10(4), 27 X 10(4)-20 X 10(4) and 10 X 10(4)-0 aB.P.. This conclusion is supported by the geophysical data and the inner plateau and surrounding sediments. Through analyzing the constraints of the deep restraint mechanism and uplift tensile function of the plateau, the uplifting processes of the Tibetan Plateau since 50 X 10(4) a B. P. is elucidated.

引用

页码：35 / 44

页数：10