那拉提中间地块的地球化学特征及意义

The geochemical characteristics of Nalati median mass and its geological significance

研究了那拉提中间地块9种元素的地球化学特征,查明A g、Pb、Zn、A s、Sb等是花岗质岩石中的高丰度元素,A g、Pb、Cu、N i等元素在花岗质岩石形成、改造、演化过程中发生了再分配;元素组合规律揭示了地块内银、铅、铜3元素成矿活动与花岗质岩石有关。这3种金属应是研究区内找矿的主要方向。

According to the research of the geochemical characteristics of 9 elements of Nalati median mass, we found that Ag, Pb, Zn, As and Sb are high abundance elements in the granitic rooks, and Ag, Pb, Cu and Ni reallocate with their formation, alteration and evolvement. The metallogenic activities of three kinds of elements （Ag, Pb and Cu） are related to the granitic rocks in this mass, which should be a main direction for prospecting.