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近年来,我国广大地质工作者在毛主席革命路线指引下,“破除迷信,解放思想”,反复实践,先后找到了一批铌钽矿床。在找矿工作中,积累了许多新资料,加深了对铌钽矿床类型、物质成分、地球化学的认识,扩大了找矿途径。本文介绍的是近年来发现的一个类型较特殊的细晶岩脉铌钽矿床。该矿床的地质普查及物质成分查定工作是由我所与冶金地质238队共同进行的。一、概述在某穹窿构造的东北部,有一条细晶岩脉沿东西向断裂侵入,切穿北西—南东走向的泥盆系灰岩和白云岩地层。地貌上反映为一壠岗突起。由于岩脉基本
In recent years, under the guidance of Chairman Mao’s revolutionary line, the vast majority of geological workers in our country have “gone superstitious and emancipate their minds” and have repeatedly practiced and successively found a number of niobium-tantalum ore deposits. In the prospecting work, many new materials have been accumulated, deepening the understanding of the types, material compositions and geochemistry of the niobium-tantalum ore deposits and expanding the prospecting path. This article describes a type of pegmatitic niobium-tantalum ore deposit found in recent years. Geological survey of the deposit and the identification of the material composition by the metallurgical and geological team 238 together. I. Overview In the northeast of a certain dome, a fine craggy vein intruded along the east-west fault and cut through Devonian limestone and dolomite strata that range from northwest to south. Landform reflected as a sudden hillock. Due to dikes basic