硐中达冰水堆积区几种水系沉积物找矿方法的有效性

本文系统地分析了硐中达冰堆积区几种水系沉积物找矿方法和样品分析方法,获取该景观区中最主要成矿元素铜的找矿信息的有效性:重砂测量极其有效。水系沉积物测量的有效性取决于样品所选用的分析方法,冷提取法极其有效,且其作品采集和筛截粒度以＜100目细粒物为佳,而光谱和热溶比色等全提取法则无效。灰砂测量也无效。

THE EFFECTIVENESS OF SEVERAL STREAM SEDIMENT ORE-PROSPECTING METHODS IN THE DONGZHONGDA ICE-WATER ACCUMULATION AREA

The present paper makes a systematic analysis of several stream sedimentore-prospecting methods and analytic techniques for samples in the Dongzhongdaice-Water accumulation area, and, as a result, the information concerning the effectiveness of the most important metallogenic element-copper-in ore prosp ecting of this area is obtained; the heavy mineral survey gives extremely good result; the effectiveness of stream sediment survey depends on the adopted ana lytic techniques for samples; cold extraction method is also exceptionally effe ctive, especially when the grain sizes of the samples after sieving are less than100 mesh; the total extraction methods such as spectral analysis and heating dissolution and colorimetry are of no results, as is also the grey heavy mineral survey.