中国北方中新生代沉积盆地铀矿勘查进展和展望

中国北方中新生代沉积盆地通过最近10多年一系列铀矿基础地质研究和区域评价工作,在铀成矿理论、时空分布规律、铀成矿区划、铀矿床分类、不同类型矿床成矿作用和控矿因素、铀成矿模式、预测评价准则、找矿判据等方面研究取得了丰硕成果,重点地区勘查取得了重大突破。但由于区域辽阔,投入十分有限,铀矿地质工作程度总体上还较低,勘查前景广阔。下一步应以"突出重点地区勘查、加大区域潜力评价的力度、加快落实新的后备基地"为基本方针,坚持"分层次部署、分区域推进"的部署原则,坚持"系统勘查、整体评价"的多类型找矿方向,从大基地勘查、区域评价和航空物探、重大基础地质问题研究等3个大的方面形成新的部署格局,推进我国北方中新生代沉积盆地铀矿勘查向纵深方向发展。

Progress and Outlook of Uranium Exploration Meso-Cenozoic Basins in North China

Through the efforts in last decades on the research of geology setting and regional assessmen for uranium exploration in the MesoCenozoic basins in North China, rich accomplishment have been got ten in metallogenic theory, temporal and spatial distribution pattern, zone division, Classification, mineralization of different type, orecontrolling factors, metallogenie model, principle of evaluation and prog nostication, exploration criteria and great breakthrough in the prospecting of key areas. However, the extensive territory make the effort limited only to some region, the exploration level is fairly lower in the whole country, and there is wide space for uranium exploration. The further exploration should be basi cally guided by ＂highlighting the exploration of key areas, strengthening the evaluation of regional poten tial and accelerating the implementation of new reserve bases ＂ and persisted in principle of ＂deployment with different level and execution according to region ＂ and oriented with different types of deposit by ＂wholly evaluation and systematic exploration＂. By deploying the new effort frame in large base explora tion, regional evaluation and solving the important geological and geophysical problem, we can put for ward the uranium exploration in MesoCenozoic basins in North China.