河南省铀矿分布规律及找矿方向

DISTRIBUTION LAW AND PROSPECTING DIRECTION OF URANIUM DEPOSIT IN HENAN PROVINCE

本文重点介绍了河南遂平铀矿和鲁山铀矿及主要矿点的成矿条件及矿床地质特征,两矿床均与寒武系碳质岩石和含磷岩石密切相关,充分揭示了铀的亲碳和亲磷性;近年也发现和大致探明了一些矿床和矿点。总结河南铀矿的分布规律发现,华北板块和扬子板块之间的秦岭褶皱系和裂陷槽,以及少部分花岗岩基的内外接触带和陆块下、底部特征地层是铀矿分布的主要层位,在找矿方向上也要引起重视。

Suiping and Lushan uranium deposits, their metallogenic conditions, geological characteristics and those of some important mineral occurrences were mainly introduced. Both of the two deposits are closely related to Cam- brian carbonaceous rocks and phosphorus rocks which proved the closeness between uranium and carbon/phosphorus; we also have found and proved some other deposits and mineral occurrences in recent years. In summarizing the distribution regularities of uranium deposits in Henan, we found that Qinling fold system and chasmic troughs between the North China plate and the Yangtze plate, is the main part of forming uranium. As well as a small number of granite bases, bottom characteristic under the inner and outer contact zone and the continental formation, more attention also should be paid in these places in prospecting.