Timing, scale and mechanism of the destruction of the North China Craton

传播影响力
本库下载频次:
本库浏览频次:
CNKI下载频次:0
学术影响力
WOS被引频次:99

成果归属作者:

刘俊来

成果归属机构:

地球科学与资源学院

作者

Zhu RiXiang ; Chen Ling ; Wu FuYuan ; Liu JunLai

单位

Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China;China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China

关键词

timing; scale and mechanism; craton destruction; North China Craton

摘要

The North China Craton (NCC) is a classical example of ancient destroyed cratons. Since the initiation of the North China Craton Destruction Project by the National Natural Science Foundation of China, numerous studies have been conducted on the timing, scale, and mechanism of this destruction through combined interdisciplinary research. Available data suggest that the destruction occurred mainly in the eastern NCC, whereas the western NCC was only locally modified. The sedimentation, magmatic activities and structural deformation after cratonization at similar to 1.8 Ga indicate that the NCC destruction took place in the Mesozoic with a peak age of ca 125 Ma. A global comparison suggests that most cratons on Earth are not destroyed, although they have commonly experienced lithospheric thinning; destruction is likely to occur only when the craton has been disturbed by oceanic subduction. The destruction of the NCC was coincident with globally active plate tectonics and high mantle temperatures during the Cretaceous. The subducted Pacific slab destabilized mantle convection beneath the eastern NCC, which resulted in cratonic destruction in the eastern NCC. Delamination and/or thermal-mechanical-chemical erosion resulted from the destabilization of mantle convection.

基金

National Natural Science Foundation of China [90814000, 90814002]

语种

英文

来源

SCIENCE CHINA-EARTH SCIENCES,2011(6):789-797.

出版日期

2011-06

提交日期

2017-12-14

引用参考

Zhu RiXiang; Chen Ling; Wu FuYuan; Liu JunLai. Timing, scale and mechanism of the destruction of the North China Craton[J]. SCIENCE CHINA-EARTH SCIENCES,2011(6):789-797.

回到顶部
Baidu
map
Baidu
map