渡口-西昌区域第四系形成与新构造活动的热发光年龄及发展史研究

本文根据野外考察和系统采样热发光年龄测定结果,首次对研究区第四纪地层和新构造活动的年代学进行了综合分析与基本划分。这一研究成果对本区第四纪地质发展史和地震预报的研究,以及论证区域开发和建设条件,具有重要的理论和实践意义。

STUDY ON THERMOLUMINESCENCE AGE AND THE GEOLOGICAL HISTORY OF FORMATION OF THE QUATERNARY SYSTEM AND NEOTECTONIC ACTIVITY IN DYKOU-XICHANG AREA

The Quaternary system is widely distributed in the investigated area. The neotectonic activity is frequent, and the recent action of the An-ninghe river deep fault is very strong forming a seismic belt in this area. The evidence of regional crust stability and the estimation of the geologic environmental condition are necessary for the exploitation of resources and energy, and for the engineering construction. The study on the Quaternary geological chronology is a basis for resolving this important subject. Therefore, the field investigation and systematic sampling for the thermoluminescence dating have been made and the results are well documented. On this basis the comprehensive analysis and the fundamental classification for the chronology of the Quaternary strata and the neotectonic activity have been made for the first time in this paper. These research achivements are of important theoretical and practical significance for the study of the Quaternary history, earthquake prediction and for varifying the exploitation and engineering condition of the area.