淅川—西峡县龙头石墨矿床地质特征及找矿前景
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摘要
矿区石墨矿体均赋存于下元古界陡岭群大沟组地层中,矿石中固定碳呈晶质石墨形态存在,属细鳞片晶质石墨,查明石墨矿物量125.4万t,为一大型晶质石墨矿产地,矿石的矿物成分简单而稳定,矿石中脉石矿物组合为斜长透辉片麻岩、透辉斜长片麻岩或黑云斜长片麻岩等,与围岩中的造岩矿物相似,在全区变质岩中广泛分布,该矿床为一套典型的变质岩系含矿建造,陡岭群大沟组石墨矿带可作为下一步的工作方向,预测矿床规模为特大型。
Graphite ore bodies in the mining area all occur in the Dagou formation in the Douling group of the Lower Proterozoic,the fixed carbon in the ore is in the form of crystalline graphite, which belongs to the fine-grained crystalline graphite. The amount of graphite minerals is found to be 1.254 million tons, for a large-scale crystalline graphite ore producing area. The mineral composition of the ore is simple and stable, the gangue minerals in the ore are oscillating translucent gneiss, translucent plagioclase gneiss, or black cloud plagioclase gneiss, the rock-forming minerals in the rock are similar and widely distributed of the metamorphic rocks in the whole area.The deposit is a typical metamorphic rock series with ore-bearing construction, the graphite belt of the Dagou formation in the Douling group can be used as the next working direction and the deposit is predicted to extra large scale.
Graphite ore bodies in the mining area all occur in the Dagou formation in the Douling group of the Lower Proterozoic,the fixed carbon in the ore is in the form of crystalline graphite, which belongs to the fine-grained crystalline graphite. The amount of graphite minerals is found to be 1.254 million tons, for a large-scale crystalline graphite ore producing area. The mineral composition of the ore is simple and stable, the gangue minerals in the ore are oscillating translucent gneiss, translucent plagioclase gneiss, or black cloud plagioclase gneiss, the rock-forming minerals in the rock are similar and widely distributed of the metamorphic rocks in the whole area.The deposit is a typical metamorphic rock series with ore-bearing construction, the graphite belt of the Dagou formation in the Douling group can be used as the next working direction and the deposit is predicted to extra large scale.
引文
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[5]陈鹏,陈鑫,苏业良.西峡县大路沟石墨矿床地质特征及找矿前景[J].中国非金属矿工业导刊,2016(3):51-53.
[2]于吉林,邱冬生.河南省石墨成矿地质特征及远景预测[J].中国非金属矿工业导刊,2012(4):60-62.
[3]罗铭玖,黎世美,卢欣祥,等.河南省主要矿产的成矿作用及矿床成矿系列[M].北京:地质出版社,2000:327-329.
[4]仝保信,卓立宏.南阳地区石墨资源概况及开发前景[J].南都学坛(自然科学版),1990(6):75-77.
[5]陈鹏,陈鑫,苏业良.西峡县大路沟石墨矿床地质特征及找矿前景[J].中国非金属矿工业导刊,2016(3):51-53.