地震学报(英文版)2000,Vol.13Issue(2):159-165,7.
Crust-mantle structure feature and the seismic activity of the main tectonic units in the North Tanlu fault zone
Crust-mantle structure feature and the seismic activity of the main tectonic units in the North Tanlu fault zone
摘要
Abstract
Using recent data of geoscience transaction in Northeast China, the author analyses and studies the crust-upper mantle structure feature of the North Tanlu fault zone. The result shows the crust-mantle structure are obvious difference at both sides of the North Tanlu fault zone. The fault activity and segmentation are closely related with abruptly change zone of the crust-upper mantle structure. There is a clear mirror image relationship between the big geomorphic shape and asthenosphere undulate, the former restricts tectonic stability and tectonic style of different crustal units. The significantly strengthening seismicity of north set and south set in the North Tanlu fault zone just correspond to the low-velocity and high conductivity layer of crust-upper mantle. In the North Tanlu fault zone, the main controlling structure of the mid-strong seismic generally consists of the active fault sectors, whose crust-mantle structure is more complicated in rigidity massif.关键词
North Tanlu fault zone crust-upper mantle structure low velocity-high conductivity layer seismicityKey words
North Tanlu fault zone crust-upper mantle structure low velocity-high conductivity layer seismicity分类
天文与地球科学引用本文复制引用
..Crust-mantle structure feature and the seismic activity of the main tectonic units in the North Tanlu fault zone[J].地震学报(英文版),2000,13(2):159-165,7.基金项目
This study is supported by the Chinese Joint Seismological Science Foundation (95152). (95152)