【摘要】 通过在安徽省北淮阳沙坪沟超大型钼矿区开展水系沉积物测量粒级试验,基于沙坪沟钼矿区分散流长度试验研究,对不同粒级(截取粒级和细粒级)水系沉积物粒级占比、元素含量变化特征等进行对比分析,探讨研究区主要成矿元素含量衰减特征。通过总结不同粒级水系沉积物的构成特征,认为在北淮阳地区开展水系沉积物测量适宜采用截取粒级的采样方法,为该地区开展1∶50 000化探普查提供参考。更多还原

【Abstract】 This study carried out granularity experiment of the stream sediments from the Shapinggou super-large molybdenum ore deposit in the northern Huaiyang area.On the basis of dispersed flow length experiment,the proportion and change features of main ore-forming elements contents in different graded stream sediments were compared so as to analyze the attenuation characteristic of the main ore-forming elements.The compositions of the varied-grain stream sediments suggest that the sampling method of intercepted granularity can be applied in the survey of stream sediment measurement.This study provides a technique basis for conducting the 1∶50 000 geochemical survey in the northern Huaiyang area.更多还原