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本文详细地描述了沥青铀矿和辉钼矿组合的矿化特征。列举了沥青铀矿与辉钼矿、方铅矿、闪锌矿、绢云母、碳酸盐等的相互关系。从而说明:矿物自溶液中析出的时间相近、矿化与围岩蚀变关系紧密。同时,划分出两种蚀变类型:1)钠长石化和碳酸盐化岩石,2)绢云母化和矽化岩石。根据不同的围岩蚀变和矿物在矿带中的分布特点,进而划分三种矿带类型:第一类矿带、上部以棋盘状钠长石和碳酸盐蚀变为特征,沥青铀矿大量富集。下部为绢云母和石英,辉钼矿则占优势;第二类矿带下部,矽化、绢云母化特别强烈,沥青铀矿仅见于上部;第三类矿带上部,钠长石增多,富铀而贫钼,下部则相反。以上说明:铀的富集随着岩石钠长石化强度之增加而加强,钼只富集于绢云母化和矽化地段。最后,本文对围岩蚀变和成矿作用的地球化学过程,也作了简要的理论分析。
This paper describes in detail the mineralization characteristics of a combination of uraninite and molybdenite. The relationship between pitch uranium and molybdenite, galena, sphalerite, sericite and carbonate are listed. Thus, the time when minerals are precipitated from the solution is similar, and mineralization is closely related to wall rock alteration. At the same time, two types of alteration are divided: 1) albite and carbonate rocks, 2) sericitized and silicified rocks. According to the different alteration of surrounding rock and the distribution of minerals in the ore belt, three types of ore belts are divided: the first type of ore belt, the upper part is characterized by intercalated albite and carbonate alteration, the large amount of pitch uranium ore Enriched. The lower part is sericite and quartz, and the molybdenite is dominant. In the lower part of the second type of ore belt, the silicification and sericitization are particularly strong, and the bituminous uranium ore is only found in the upper part. In the upper part of the third type ore belt, the albite is increased, The poor molybdenum, the lower is the opposite. The above shows that the enrichment of uranium intensifies with the increase of rock lithogenic strength, and molybdenum is only enriched in sericitization and silicification sites. Finally, this article also makes a brief theoretical analysis of the geochemical process of wall rock alteration and metallogenesis.