ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    宁夏区域成矿规律概论

    Summary of Regional Metallogenic Regularity in Ningxia

    • 摘要: 宁夏虽地域面积较小,但矿产资源种类众多,能源、金属、非金属、水气类矿产均有发现。已发现60余种矿产(含亚矿种)中,获探明储量的矿产种类达50余种,煤、石膏、灰岩、冶镁白云岩、硅石等为优势矿种。笔者总结了宁夏矿产资源的时-空分布演化规律:时间上分为元古宙、古生代、中生代和新生代4个时段。非金属矿在加里东期及喜马拉雅期、金属矿在晋宁期及燕山期、能源矿产在华力西期及燕山期、水气矿产在喜马拉雅期分别达到成矿高峰期。空间上以宁夏12个五级(Ⅴ)构造单元为基本空间单元开展:金属矿产主要集中地即为贺兰山、卫宁北山、南-西华山地区。非金属矿产主要集中在贺兰山褶断带及香山褶断带中,其次为烟洞山-窑山冲断带,陶乐-彭阳冲断带。能源矿产在陶乐-彭阳冲断带聚集特征明显。水气矿产绝大部分聚集在银川断陷盆地内。在综合消化已有地质矿产资料的基础上,对宁夏全区划分9个IV级成矿亚带及19个矿集区或远景区,厘定9个矿床成矿系列及10个矿床成矿亚系列,并建立了区域成矿谱系。

       

      Abstract: Although Ningxia is small in area, there are many kinds of mineral resources, including energy, metal, nonmetallic and groundwater - gas minerals. More than 60 kinds of minerals (including subminerals) have been discovered, of which more than 50 kinds of minerals have proved reserves. Coal, gypsum, limestone, magnesia dolomite, silica and other dominant minerals. This paper summarizes the time-space distribution evolution of mineral resources in Ningxia: The time can be divided into Proterozoic, Paleozoic, Mesozoic and Cenozoic. The non-metallic minerals reached their metallogenic peak in Caledonian and Himalayan ages, the metallic minerals in Jinning and Yanshanian ages, the energy minerals in Hualissian and Yanshanian ages, and the water-gas minerals in Himalayan ages. In space, 12 grade Ⅴ structural units in Ningxia are used as the basic spatial units: Metal minerals are mainly concentrated in Helan Mountain, Weining North Mountain and South-West Huashan region. Non-metallic minerals are mainly concentrated in helan Mountain fold and Xiangshan fold, followed by Yandong Shan-Yaoshan thrust belt and Taole-Pengyang thrust belt. Energy mineral resources are concentrated in taole - Pengyang thrust belt. Most of the hydrogas minerals are concentrated in yinchuan fault depression basin. Most of the groundwater - gas minerals are concentrated in Yinchuan fault depression basin. On the basis of comprehensive digestion of existing geological and mineral data. The whole area of Ningxia is divided into 9 grade IV metallogenic subbelts and 19 ore clusters or prospective areas. Nine ore-forming series and 10 ore-forming subseries were determined and regional metallogenic genealogy was established.

       

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