早二叠世冈瓦纳北缘构造古地理环境与杂砾岩成因剖析  

Early Permian Tectonic Paleogeography on Northern Margin of Gand wanaland and Origin of Diamictites

作　　者：梁定益[1] 聂泽同[1] 宋志敏[1] 

机构地区：[1]北京中国地质大学

出　　处：《沉积与特提斯地质》1994年第1X期61-73,共13页Sedimentary Geology and Tethyan Geology

基　　金：国家自然科学基金

摘　　要：早二叠世冈瓦纳北缘构造古地理环境与杂砾岩成因剖析梁定益，聂泽同，宋志敏（北京中国地质大学，）一、前言杂砾岩（ｄｉａｍｉｃｔｉｔｅ）＠是下冈瓦纳海相岩系的重要标志之一。杂砾岩的成因至今争论不休，尤其是分布在冈瓦纳北缘（藏东、滇西和中南半岛）的杂砾岩近来...An endless controversy has been involving in an origin of Early Permian diamictites on northern margin of Gandwanaland,owing to absence of ripe lithological criterion up to date.The authors suggest that an origin of these diamictites must be controlled by both paleogeography(paleolatitude)and paleo-tectonic environment,which can not be treated as different matters.

关 键 词：杂砾岩 构造古地理 冈瓦纳 丁家寨组 早二叠世 成因剖析 伸展不整合 西藏阿里 保山地块 中国地质大学 

分 类 号：P543.46[天文地球—构造地质学]