适用于青藏高原地区中大比例尺重力勘查的大地测量方法技术研究  

Study on Geodetic methods in Gravity Surveys of Middle-Large Scales Applicable to the Tibetan Plateau

作　　者：杜辉[1] 耿涛[1] 高鹏[1] 刘生荣[1] 冀显坤[1] 白运[1] 

机构地区：[1]国土资源部岩浆作用成矿与找矿重点实验室中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《地质与勘探》2017年第5期915-922,共8页Geology and Exploration

基　　金：国土资源部公益性行业科研专项项目(201511020);中国地质调查局"东昆仑铜镍多金属资源基地调查"二级项目(DD20160013);中国地质调查局"青海祁漫塔格成矿带金属矿地质矿产调查"项目(12120113031600)联合资助

摘　　要：中大比例尺重力勘查工作是各种物探方法中对大地测量精度(尤其是高程精度)要求最高的一种。近年来,在青藏高原地区开展的矿产地质调查项目中越来越多地应用了重力勘查手段,但由于青藏高原地区特殊的自然地理及人文环境,基础测绘程度低,因此,一些在人口稠密、经济发达的内地开展工作时常用的成熟大地测量方法在青藏高原地区已不方便或出现了新的问题。本文通过对青藏高原地区近年来开展中大比例尺重力勘查时测量工作遇到的实际问题进行梳理研究,结合具有针对性地方法技术试验成果,总结了一套解决问题的方法,可作为今后青藏高原及类似困难地区开展中大比例尺重力勘测时的参考。Among various geophysical methods,the geodetic methods in gravity surveys of medium-large scales have the highest requirements for measurement accuracy（ especially the elevation accuracy）. In recent years,the gravity method has been increasingly applied to geological and mineral resource surveys in the Tibetan plateau area. Because of special physiographic and the human environments and low degrees of basic geodetic surveys available in this vast region,some mature geodetic methods that are commonly used in densely populated and economically developed areas cannot work well or encounter new problems. In this paper,we analyze such practical problems encountered in the Tibetan Plateau in recent years. In combination with the aimed test results of gravity surveys,we sum up a set of methods to solve these problems,which can be used as a reference for future surveys in the Tibetan Plateau and the areas with similar natural conditions.

关 键 词：青藏高原 重力勘查 测量方法 技术研究 

分 类 号：P631[天文地球—地质矿产勘探]