用户名： 密码： 验证码：
Methods for Measuring Erosion Rate of Rock: An Overview
详细信息   
摘要
This paper discussed several methods for measuring erosion rate of rock which were applied widely.The author sorted these methods to two type: The first is mass measurements,including formula calculating methods,Hydrochemical measurements for catchment area,the method of rock tablets;the other is geometrical measurements,such as Micro-Erosion Meter(MEM),contrasting measurement and radionuclide methods.Despite many revised and developed formula calculating methods based on the most famous—Cobel equation,they can only estimate the maximal regional erosion theoretically,which are easy to apply.Hydrochemical measurements for catchment area can obtain a factual data,but they are less than total erosion as they only calculate the dissolved mass.The erosion data obtained by these two kinds of methods are regional,which are appropriate to be applied to regional research and country supervising.The other four(the method of rock tablets,micro-erosion meter,contrasting measurement and Radionuclide methods)can obtain erosion rate of individual position.It is necessary to investigate sufficient data if we apply these four kinds of methods to regional research,which are appropriate to be applied to small scale geo-research.The method of rock tablets is preferred for erosion mechanism research because many effect factors can be controlled accurately by researchers during all the process.The MEM method can obtain erosion heights of idiographic position which are improved by many researchers so as to be applied to various ares even underwater.Therefore,it is appropriate to be applied to culture relic protection and engineering application.Contrasting measurement needs the distinct erosion term,and it is only applied to special area,although the method is easy.Along with the progress of relative instruments,the data obtained by radionuclide methods become more and more accurate,but it is the most luxurious method due to the high cost and advanced instruments.At the end of this paper,the authors summarize the geographical locations of researchers and sites on erosion rate measurements: at the early stage,the researchers are mainly from Europe(UK,Med countries),the sites focus on the karst area,the researchers are mainly from Oceania(Australia,New Zealand)recently,and more and more sites are located in marine area.The authors also give the prospect of erosion rate measuring research,the MEM methods and radionuclide methods(when less expensive) are highly advised.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址：北京市海淀区学院路29号 邮编：100083

电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700