1. Zhejiang Bureau of Coal Geological Exploration,CNACG,Hangzhou　 310021,China;2. China Nation Administration of Geology,Beijing　 100038,Chi-na;3. First Exploration Bureau,China National Administration of Coal Geology,Handan　 056004,China

华北赋煤区煤中广泛存在与煤炭成因有紧密联系的多种金属矿产,通过煤系矿产的调查研究,笔者讨论了华北煤中金属矿产的种类和分布特征。结果表明:1煤中金属矿产是一种新型的金属矿产类型,具有分布稳定,资源储量大的特点,往往能形成大型或超大型金属矿床。根据这类矿产的赋存特征、品位含量等因素,以及与煤系的共伴生关系,将矿床类型划分为煤型大宗金属矿床、煤型稀有金属矿床和煤型放射性矿床3种矿床类型。2华北地区煤中金属成矿有其特定的时空分布,成矿期也仅限于石炭二叠纪成煤期,在其他成煤期仅呈现金属元素异常,而未能形成矿床。煤中锂仅在准格尔煤田黑岱沟、管板乌素6号煤层及平朔安太堡矿区石炭二叠纪煤中含量达到工业品位。煤中镓异常富集到成矿床规模的也仅在鄂尔多斯盆地东侧大同、平朔、西山、柳林、阳泉等地的石炭二叠纪煤层中。高铝煤主要分布在内蒙古、山西等地的石炭二叠纪煤层煤中,在平面上煤灰中Al2O3的含量总体呈北高南低趋势,可能与北部阴山物源区的搬运距离有关。煤中铁分布在桌子山煤田西南部(西来峰断裂以西)的个别煤矿区,含煤沉积与"西北型"的羊虎沟群相当,分布范围局限,资源储量也很有限,但它代表的是一种新的煤中金属类型。

Multiple metal mineral resources are widely distributed in coal measures closely related to the coal genesis in Northern China. Through the investigation and study of the coal measure mineral resources,the types and distribu- tion characteristics of the coal measure metal mineral in Northern China were discussed. ① Metal mineral in coal measures is a new type of metallic mineral,which has the characteristics of stable distribution and large reserves. It can often form the large or very large metal deposits. According to the occurrence of this type of minerals and the co-rela- tionship with coal,the deposit types can be divided into three types:coal type bulk metal deposits,coal type rare metal deposits and coal type radioactive deposit. ② The spatial and temporal distribution of the coal measure metal mineral are certain in North China,and the metallogenic epoch was limited in the carboniferous-Permian coal forming period, in other coal forming period,the metal mineral deposit in coal measures was not formed. Coal measure Lithium which can reach the industrial grade is only in the No. 6 coal seam in Heidaigou and Guanbanwusu in Jungar coalfield and in the carboniferous-Permian coal seam in Antaibao mining area in Pingshuo. Anomalous enrichment of Gallium in coal measure only exist in the carboniferous-Permian coal seam in the east Ordos basin such as Datong,Pingshuo,Xishan, Liulin,Yangquan. High alumina coal mainly distributed in the carboniferous-Permian coal seam in Inner Mongolia and Shanxi,and because of the transportation distance with Yinshan northern provenance,the trend of the content of Al2 O3 in coal ash in north is higher than south in the plane. Coal measure iron distributed in individual coal mining area in Southwest of Zhuozishan coalfield,and the Coal-bearing deposition is comparable to the Yanghugou Goupe (northwest type). The distribution range and resource reserve of coal measure iron is limited,but it represents a new type of metal in coal measure.

中国地质调查局“华北赋煤区煤系矿产资源综合调查”资助项目(12120114012001)；

Zhu Huaxiong,Chen Hanyong,Zhang Wei,et al. Metal mineral types and distribution characteristics in coal in Northern China[J]. Journal of China Coal Society,2016,41(2):303-309.