摘要
甘肃石灰岩矿分布广泛,品位稳定,资源量丰富,主要用于水泥用、溶剂用、电石用和制灰等。石灰岩矿在时间分布上以奥陶纪为主,其次为二叠纪、蓟县纪和石炭纪;空间上主要集中分布在南秦岭裂陷大陆边缘、中秦岭裂陷大陆边缘、中祁连岩浆弧、北祁连沟弧盆系等构造单元中。本文通过对全省已发现的石灰岩矿进行综合分析研究,总结其区域成矿因素和所处大地构造位置和成矿时代,预测出3个成矿远景区,对今后石灰岩的勘查开发利用具有一定的指导意义。
Limestone ores in Gansu province are widely distributed,stable in grade,rich in resources and widely used.They are mainly used for cement,solvent,calcium carbide and ash making.The temporal distribution of limestone deposits is mainly Ordovician,followed by Permian,Jixian and Carboniferous.Spatially,they are mainly distributed in structural units such as the southern Qinling rift continental margin,the middle Qinling rift continental margin,the middle Qilian magmatic arc and the North Qiliangou arc basin system.Through the comprehensive analysis and research on the limestone mines found in the province,this paper summarizes their regional metallogenic factors,tectonic location and metallogenic age,and predicts three metallogenic prospects,which has certain guiding significance for the exploration,development and utilization of limestone in the future.
作者
赵文博
罗小红
ZHAO Wen-bo;LUO Xiao-hong(Gansu Branch of China National Geological Exploration Center of Building Materials Industry,Tianshui 741000,China)
出处
《中国非金属矿工业导刊》
2021年第6期9-12,8,共5页
China Non-Metallic Minerals industry
关键词
石灰岩
分布规律
矿床类型
成矿远景
甘肃省
limestone
distribution
deposit genetically
metallogenic prospect
Gansu province
