地质力学学报2016，Vol.22Issue(4)：893-906,14.
特殊地质地貌区填图物化探技术应用
APPLICATION OF GEOPHYSICAL AND GEOCHEMICAL PROSPECTING TECHNIQUES IN SPECIAL GEOLOGICAL AND GEOMORPHIC AREAS
摘要
Abstract
Based on the application experiment of geophysical and geochemical prospecting technique in special geological and geomorphic areas mapping,this paper introduces the methods of extracting geologic information from regional geophysical and geochemical data.It is pointed out that the combination of gravity and Rn-Hg survey is efficient and low-cost for detecting concealed rock and fault in coverage areas.The weathering grades of intensely weathered areas can be clarified into bedrock,weak weathering,moderate weathering,strong weathering,total weathering,residual soil,and so on.Besides that,the geochemical behavior of weathered crust has a trace effect on the decomposition of primary minerals and the formation of secondary minerals.Due to the significant differentiation of REE in different weathered layers,the distribution pattern of REE which are strongly enriched in the whole weathering layer (rock-soil interface or weathering rock top) can be used as an important geochemical identification index for delimiting weathering crust.关键词
地质填图/物化探技术/元素地球化学/判别/应用Key words
geological mapping/geophysical and geochemical exploration technique/element geochemistry/discrimination/application分类
天文与地球科学引用本文复制引用
喻劲松,荆磊,王乔林,韩伟,刘华忠,郜晓亮..特殊地质地貌区填图物化探技术应用[J].地质力学学报,2016,22(4):893-906,14.基金项目
中国地质调查局地质调查项目“特殊地质地貌区填图试点”(DD20160060) （DD20160060）
