贵州省东部南北向基底构造与其成因初探

DISTRIBUTION AND ORIGIN OF N-S-TRENDING BASEMENT STRUCTURAL FEATURES IN EASTERN GUIZHOU

摘要: 规模巨大的梵净运动,在本区及湘黔桂三省接壤区内均留下了形迹,这是众所公认的。但究竟是一个什么样的形态?在认识上尚有分歧。我认为,贵阳以东地区出现的SN向构造形态,与邻区截然不同,唯与近邻的梵净山及吉羊两个SN向穹窿构造颇有相似之处。本文力图通过对有关地质、物探资料的分析研究,及对卫片的解释,从中探索它们之间的成生联系及其控矿因素。

Abstract: In this paper an attempt is made to gain a knowledge of the following four problems through a study of the distribution of the basement structural features in eastern Guizhou: （1） the degree of control of the generation, Inheritance and development of the structural features in this region on the distribution of superficial structural features and their controlling effects on the distribution of the features of the paleogeographic environments; （2） the controlling effects of the distribution of the features of paleogeographic environments on the changes of land and sea and the distribution of sedimen- tary facies zones; （3）the controlling effects of the distribution of the features of the sedimentary facies zones on the distribution of favourable metallogenic proviuces; （4） the activity and ore-controlling effects of the structural movements of various geologic ages.