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近几年来,我队在某地超基性岩体上,应用铬次生晕找铬铁矿,取得了较好的地质效果。提出本文,供参考,不当之处,精予指正。一、地质简介组成本区超基性岩体的主要岩石有:纯橄岩,蛇纹石化纯橄岩,斜方辉橄岩,蛇纹岩及透辉岩等。铬铁矿的矿床类型有:晚期岩浆分凝式同生矿床,晚期岩浆分凝式同生后生混成矿床,晚期岩浆压入式(贯入)矿床。目前已知前两类矿床多赋存于纯橄岩及弱
In recent years, our team applied chromium secondary halo to find chromite on ultramafic rocks in a certain area, and achieved good geological results. Proposed this article, for reference, improper, fine correction. I. Introduction to Geology The major rocks that make up the ultramafic rocks in this area include dunite, serpentin dunite, orthopyroxene, serpentinite and diopside. The type of chromite ore deposits are: late magmatic sub-type synsedimentary deposits, late magmatic sub-synconcentration mixed metamorphism and late magmatic press-in (deposit) deposits. It is known that the first two types of deposits are mostly hosted in dunite and weak