天山南缘逆冲构造初探 |
| |
引用本文: | 邵鸿良,易荣龙.天山南缘逆冲构造初探[J].石油与天然气地质,1990,11(4):393-401. |
| |
作者姓名: | 邵鸿良 易荣龙 |
| |
作者单位: | 地质矿产部石油地质综合大队
(邵鸿良,易荣龙),地质矿产部石油地质综合大队(林宗满) |
| |
摘 要: | 该构造在区域上受控于南北向水平挤压应力场。逆冲断裂在横向剪应力作用下,宏观上呈现为扇形或倒扇形构造的特点。其时空特征为:自北而南依次展布着海西期逆冲断裂、印支—燕山期叠瓦构造和喜马拉雅期推覆构造,后期对前期构造既叠加又改造。
|
关 键 词: | 天山南缘 塔里木盆地 逆冲构造 叠瓦构造 推覆构造 构造演化 |
PRELIMINARY APPROACH ON THRUST TECTONICS IN SOUTH MARGIN OF TIANSHAN MOUNTAINS |
| |
Abstract: | The thrust tectonic belts in the south margin of the Tianshan Mountains were region-ally controlled by N-S horizontal compressing stress field,thus forming E-W stretching fold-faulted tectonics.Those are macroscopically characterized by fan or reverse fan shapes.The belts could be divided into three kinds:1.thrusts mainly formed in Hercynian and distributed in the south flank of the Halicktao anticlinorium;2.imbricate tectonics formed in Indosinian-Yenshan Epoch and distributed in the fore part of south Tianshan;3.nappe tectonics characterized by thrusting up to several kilometres along sliding planesat low angles,developed in Himalayan Epoch and distributed in foreland depressions and the neighbouring inter montane basins.It is a intensive reformation to the thrust tectonics of the Hercynian and Indosinian-Yenshan Epoches. |
| |
Keywords: | |
本文献已被 CNKI 维普 等数据库收录! |
| 点击此处可从《石油与天然气地质》浏览原始摘要信息 |
|
点击此处可从《石油与天然气地质》下载全文 |