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内蒙古多伦地区火山岩型铀成矿条件及远景评价研究
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摘要
多伦地区位于内蒙海西褶皱带与华北陆块北缘交接部位,晚侏罗世—早白垩世形成了由众多火山机构,在构造岩浆活动及白垩系热液作用下,形成一批铀多金属矿化异常点(带),根据近年来铀矿地质调查研究工作实践,结合前人工作总结,初步提出中生代火山机构、近SN向-NW向构造,白垩世火山复活期潜火山岩构成研究区铀多金属成矿标志,多伦盆地中几个火山机构隆起带与塌陷过渡部位为铀多金属成矿有利区段。
Duolun area is located in the joint part of Inner Mongolia Hercynian fold belt and the north of North China Plate,there consists of amounts of volcanic structure during late Jurassic and early Cretaceous,in which formed large numbers of uranium and multi-mental occurrences under the base of tectonic and magmatic activity.According to recent experiences of uranium-surveying and combining with former research result,this paper put forward that Mesozoic volcanic structure and SN-NW trench fault with multi-alteration combination,and cretaceous sub-volcanic rocks are become geological setting for uranium ore-forming,and thus identified the transitive region of uplift and collapse of Mesozoic volcanic structure with tectono-alteration background are the prospect area for uranium deposit survey.
引文

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