山东沂沭断裂带成生时代探讨  

A DISCUSSION ON THE FORMING TIME OF SHANDONG YISHU FAULT BELT

作　　者：薛金声[1] 李师汤[1] 

机构地区：[1]山东海洋学院海洋地质学系

出　　处：《山东海洋学院学报》1982年第4期51-59,共9页

摘　　要：郯庐断裂带成生时代，是当前研究郯庐断裂带的重大分歧点之一。虽众说不一，但基本上有两种观点，巨大平移说(1)否认其存在于中生代之前，认为它自侏罗纪以来，大致经历了巨大平移(达740公里之巨)、张裂(裂谷形成)、挤压(裂谷消亡)三个发展阶段，而垂直运动说(2)则认为该断裂成生于前震旦纪。两种截然相反的观点，都曾提出过不少的论据，这对提高人们对郯庐断裂带的认识，无疑是有益的。但就笔者对郯庐断裂带中段(山东地区的沂沭断裂带)所做的初步野外考察，认为前震旦纪成生观点，似有应再补充更多论据之必要，而中生代成生说在解释断裂两侧异地地质体相接方面，尚有许多难题。There are two views of the forming time of Tanlu fault belt. The theory of horizontal movement suggests that it formed in the Mesozoic, while the theory of vertical movement suggests that it formed in the Archaeozoic. We think Tanlu fault belt formed in the end of the early Proterzoic by investigation, that is, it formed on the background that China-Korea platform was finally solidified by Liuliang movement in the end of the early Proterozoic. During the developing stage of the platform, it was in relativity constant time instead of being the boundary controlling sedimentation.

关 键 词：山东 郯庐断裂带 地壳发展 震旦纪 盖层构造线 

分 类 号：P534.31[天文地球—古生物学与地层学]