摘要
地质体母岩的类型及其残破积层发育厚度控制着崩滑流地质灾害的类型、发生概率和灾害体规模。本文利用历年广东省崩滑流地质灾害灾情统计数据和GIS技术,结合广东省地质图,统计分析崩滑流地质灾害与地质体母岩的关系。分析表明:火山岩单位面积致灾率最高,容易发生小规模崩塌、滑坡地质灾害;侵入岩和沉积岩次之,较大规模的崩滑流地质灾害常在这两类地质体母岩分布区中发生。
The mother rocks of geological body and the thickness of eluvial layer control the formation types, occurrence probability and generation scale of geological hazards. In the paper, using of geological hazards statistical data and GIS technology, combined with the Guangdong geological diagram, statistical analysis of the relationship between geological hazards and formation lithology. The analysis showed that the disaster rate per unit area of the volcano rock is the highest and prone to small scale landslide, the disaster rate per unit area of the intrusive rocks and sedimentary rocks is the second and prone to large scale geological hazard.
出处
《西部资源》
2017年第4期104-105,107,共3页
Western Resources
关键词
崩塌
滑坡
泥石流
地质体母岩
单位面积致灾率
广东省
collapse
landslide
debris flow
mother rocks of geological body
disaster rate per unit area
Guang-dong Province
