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一、前言随着我国工业的飞跃发展,对許多稀有元素資源的需要量日益增大,因此,如何綜合利用黑鎢矿中的Nb、Ta、Sc等微量元素,是一个急待解決的問題。本文是根据集体工作成果对黑钨矿的化学性貭与其生成条件之間的关系作一初步的探討。二、区域地貭与区域地球化学概述本文所述地区的地层主要为前泥盆紀变貭砂頁岩,并零星地分布有上部古生界及其以后的砂頁岩及灰岩,但分布不广。加里东、海西宁及燕山运动,曾对本区起了不同程度的影响。在
I. Introduction With the rapid development of China’s industry, the demand for many rare element resources is increasing day by day. Therefore, how to comprehensively utilize the trace elements such as Nb, Ta and Sc in wolframite is an urgent problem to be solved. This article is based on the results of the collective work on the chemical nature of wolframite and its relationship between the conditions for a preliminary study. II. REGIONAL TERRESTRIAL AND REGIONAL GEOCHEMISTRY OVERVIEW The strata in this paper are predominantly Pre-Devonian silt shale with sporadic Upper Paleozoic and later sand shale and limestone, but not widely distributed . Caledonian, Hercynian and Yanshan movements have had different degrees of impact on the district. in