莫坝-希拉沟地区水系沉积物地球化学特征及找矿

Geochemical Anomalies of Stream Sediments and Range of Reconnaissance in the Moba-Xila Valley Region

莫坝-希拉沟地区16个元素水系沉积物测量地球化学特征研究表明,贫乏元素有Au、Hg、Mo;正常元素有Cu、Pb、Zn、Co、Mn、W、Sn、Bi;富集元素有As、Sb、Ag、Fe、Ni;无强富集的元素。通过各元素空间分布研究,对主要地球化学异常进行推断解释,指出三叠系地层、尤其与喷出岩有关的地区是寻找Cu、Pb、Zn、Au、Ag等多金属矿的有利地区。

The stream sediment survey indicates that the Moba-Xila Valley region in Litang, Sichuan is characterized by depletion in Au, Mo, Hg and enrichment in As, Sb, Ag, Fe, Ni and that the Triassic, especially containing extrusive rock, is favorable to searching for Cu, Pb, Zn, Au and Ag deposits.