摘要
通过对‘劈’砂岩的岩性及其特征的简单描述和分析 ,指出该类岩石的岩土侵蚀方式主要是以重力侵蚀方式为主 ,分析和介绍了国内外定量评价岩土侵蚀量的计算方法。在此基础上介绍了一种定量计算‘劈’砂岩重力侵蚀量的新方法 ,即基于GPS精确测量的GIS方法 ,并对该新方法的可行性进行了探讨和实际验证。
The erosion of Pi-sandstone is considered to be gravity erosion on the basis of describing and analyzing characteristics of its rock assemblage. A new method based on GPS and GIS for quantitative assessment of gravity erosion is presented in this paper, which has adsorbed the merits of several quantitative assessment methods. Further application of this method has been discussed on the basis of in-situ test in the Pi-sandstone deposition area. It is held that this method can be widely used in quantitative assessment of gravity erosion in similar areas.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2004年第4期479-482,共4页
Acta Geoscientica Sinica
基金
中国地质调查局地质调查项目"黄河中下游重大环境地质问题调查评价"(编号 :Z3.2.1)资助
关键词
GPS
GIS
岩性
砂岩
重力侵蚀
Pi-sandstone gravity erosion global positioning system quantitative assessment
