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1978年,笔者在该区检查稀有金属碳酸盐岩脉时,对一个含有大量白云质大理岩及其他岩石角砾的岩管进行了初步观察和室内研究,认为该岩管在地质产状、岩石结构构造、化学成分及矿物组成方面,与金伯利岩颇为相似。由于当时没有找到金刚石及其主要伴生矿物,而定为“奇特角砾岩”,并建议在该区开展寻找金伯利岩和金刚石的地质工作。在以后的地质工作中又对以往定为“基性喷发岩”的岩体进行了观察研究,据野外特征改定为“隐爆角砾岩”,后经采样鉴定证明,为超基性爆发角砾岩(即Ⅰ号岩管)。据此,从1980年起,逐步
In 1978, when examining rare metal carbonate veins in the area, the author conducted a preliminary observation and an indoor study of a rock tube containing a large amount of dolomitic marble and other rock breccias, The rock structure is similar to kimberlite in terms of chemical composition and mineral composition. Because at that time, diamonds and their major associated minerals were not found, they were classified as “peculiar breccia” and proposed to carry out geologic work in this area for kimberlite and diamond. In the later geological work, we once again observed and studied the rock mass previously defined as “basic eruption rock”. According to the field characteristics, it was changed to “crypto-explosive breccia”. After sampling and identification, it was proved to be an ultrabasic burst angle Conglomerate (that is, Ⅰ rock tube). Accordingly, from 1980 onwards, gradually