摘要
本文以位于国道２１２线甘肃化马泥石流为例，基于多年来的现场观察及室内电镜分析，比较深入地研究了蠕动性泥石流的显微结构及显微构造特征．结果表明，蠕动性泥石流的微结构有杂基支撑结构、颗粒支撑结构、整体结构及筛状结构；微构造主要包括滑动构造、滑坡构造、翻卷构造、显微层状构造、擦槽、裂缝构造、绕流构造、粘块现象、块状构造等类型．蠕动性泥石流是介于滑坡和泥石流之间的一种过度性灾害地质地貌过程．
This paper expounds in detail micro-features on creep debris flow taken from Huarna beside 212-road in electron microscope. The analytical results identifies that microscope textures includ mixed mass-hold texture, partical mass-hold texture, massive texture and screening texture, and microscropic structures include microslide structure, microlandslide structure,tumbling structure, microbedding siructure,microscraping giooves,crack structures, by-flow structure and coherentmass feature etc.in advance,creep debris flow is a catastrophic geomorphologic process between landslide and general dehos flow.
出处
《重庆交通学院学报》
1996年第3期48-54,共7页
Journal of Chongqing Jiaotong University
基金
兰州大学博士点基金
关键词
蠕动性泥石流
化马
电镜分析
微结构
微构造
s:creep debris flow
huama in Gansu
electron microscope analysis
microscopic texture
microscopic structure
