闽西南“丁屋岭砾岩”地质特征及时代探讨  

Discussion on the Geological Characteristics and the Time of Dingwuling Conglomerate in Southwestern Fujian

作　　者：揭育金[1] 庄建民[2] 黄泉祯 郑声俭[2] 

机构地区：[1]中国地质大学,武汉4300471 [2]福建省区域地质调查队,三明365001

出　　处：《福建地质》2003年第1期13-20,共8页Geology of Fujian

基　　金：福建地勘局1:50万福建省构造地质编图项目的成果之一

摘　　要：福建长汀蔡坑地区原划震旦纪丁屋岭组下段的“丁屋岭砾岩”以复成分砾岩、岩屑石英砂岩为主要岩性的、形成于山间盆地的红色杂陆屑建造为加里东期的磨拉石建造 ,岩性组合、岩相、变质程度及其形成的地质背景都比较特殊。对它的详细研究对福建省乃至华南地区的基础地质研究具有重要意义。Dingwuling conglomerate in the Caikeng area of Changtin County, belonging to the upper member of Sinian Dingwuling Formation, is the Caledonian molasse formation which is the red petromictic formation formed in the intermountain basin, which is made up of compound conglomerate and lithic quartz sandstone It has a special lithologic assemblage, lithofacies, metamorphic degree and geologic background of its formation The detailed study of the Dingwuling conglomerate is of importance to the research of basic geology in Fujian Province and South China.

关 键 词：地质特征 砾岩 磨拉石建造 加里东运动 福建 变形作用 成岩时代 岩浆作用 

分 类 号：P588.2[天文地球—岩石学]