卫照判读塔里木地台构造格架

REMOTE SENSING INTERPRETATION OF THE STRUCTURAL FRAMEWORK OF TARIM PLATFORM

程日寅

Cheng Riyin

新疆地质局第十地质队

The Tenth Geology Brigade, Xinkiang Geology Bureau

塔里木地台的卫星象片镶嵌图是塔里木地区现代自然景观的真实缩影。其中的地质信息是塔里木地台在漫长的地质历史过程中,经历了多次构造变动的综合结果,提供了地台构造格架及其发展历史的基本概念。

This article provides an interpret at ion of the mosaic photos of the Tarim platform taken from setellite. The Tarim platform is a rhombic block defined by the previously existing boundary rift system. The arcuate rift system can be divided into two groups, one trending NWW-SEE and the other NEE-SWW. Most of the rifts have been mapped by previous geological research. There develop an "X" shaped and a "Y" shaped rift systems within the platform. A Ruoqiang shear structure system appears in the southeastern part of the platform and an arcuate interlayer slipping system resulted from lateral compression develops in the peripheral areas. The tectonic history includes three stages, the first is the stage of formation and stabilization; the second is the stage of activation and disintegration and the third is the stage of superimposition and transformation. The present day structural framework is resulted from the tectonic movement of the latest stage, as it is more intensely transformed in the southern part as compared with the northern part, in the western part as compared with the eastern part and in the marginal areas as compared with the central part.

https://doi.org/10.11781/sysydz198303200