摘要
南秦岭铀成矿带含铀层位主要是志留系迭部群、舟曲群、白龙江群，总体为一套海相碳硅泥岩建造。主要岩性为灰岩、炭质板岩、炭硅质板岩、硅质岩、硅灰岩，总厚5000—9000m。铀矿床（点）矿化类型以层控热水改造碳硅泥岩型为主，次为层控炭硅泥岩型。铀成矿以燕山晚期-喜山期为主。铀矿化在空间上可划分为迭部、舟曲-武都、文县-康县矿化集中区。铀矿体的空间展布具有分段集中，成群集结的特点。含铀层位分布广，厚度大，铀源丰富，铀矿床（点）带多且工作程度低，找矿前景好。
Ore-bearing horizon of uranium mineralization belt in south Qinling mainly exist in Diebu Group, Zhouqu Group and Bailongjiang Group of Silurian system. It is a series of carbon-silicon mudstone formation of marine facies with total thickness of 5 000-9 000m, composed of limestone, carbonaceous slate, siliceous rock and siliceous limestone lithologically. The mineralization types of uranium deposit are stratabound carbonaceous and siliceous mud deposit of hydrothermal transromation primarily, and siliceous limestone deposit secondly. The uranium mineralization is at later Yanshanian Period to Himalayan Period, and divided into such 3 concentration areas as Diebu, Zhouqu-Wudu and Wenxian-Kanxian spatially.
出处
《甘肃地质》
2008年第4期58-63,共6页
Gansu Geology
关键词
铀成矿带
矿化特征
南秦岭
甘肃
uranium mineralization
mineralization characteristics
south Qinling
Gansu Province
