试论造山带构造地层体的类型及特点——以金沙江造山带为例  

TYPES AND FEATURES OF TECTONO-STRATIGRAPHIC BLOCKS IN OROGENIC BELTS

作　　者：何龙清[1] 

机构地区：[1]宜昌地质矿产研究所,宜昌443003

出　　处：《华南地质与矿产》2001年第1期53-59,共7页Geology and Mineral Resources of South China

摘　　要：根据造山带的地层和构造特点 ,以构造地层学的观点将造山带地层分为三类 :( 1)构造混杂型 ,是由混杂岩组成的混杂堆积 ,构造作用强烈 ,原始地层层序无法恢复 ;( 2 )构造置换型 ,地层遭受强烈的褶皱和剪切作用 ,发生构造置换 ,原始层序和层理保存不完整 ;( 3)构造岩片型 ,因逆冲推覆作用而将地层分割成许多岩片 ,岩片内地层相对独立。Based on tectonic and stratigraphic feature, strata in orogenic belts can be divided into three types: (1) tectonic melange-type strata composed of tectonic mélange whose original stratigraphic sequences can hardly be reconstructed because of tectonic deformation; (2) tectonic replacement-type strata which underwent intensive folding and shearing during tectonic replacement with the original sequences and bedding partly preserved; (3) tectonic slice-type strata which have been cut apart by nappes and are relatively complete in an independent slice.

关 键 词：造山带 构造地层体 构造混杂型 构造置换 构造岩片型 推覆作用 

分 类 号：P542.2[天文地球—构造地质学]