福建营坑水泥用石灰岩矿床地质特征及成因  

Geological Characteristics and Genesis of the Yingkeng Cement-used Limestone Deposit in Fujian Province

作　　者：徐助龙 

机构地区：[1]中国建筑材料工业地质勘查中心福建总队,福建福州350001

出　　处：《中国非金属矿工业导刊》2016年第2期49-51,56,共4页China Non-Metallic Minerals industry

摘　　要：营坑矿区矿床赋存于下三叠统溪口组(T_1x)地层中,其沉积相属潮间盆地相,主要受潮汐作用的控制,为较高能环境沉积。根据岩石特征和沉积特征将下三叠统溪口组地层细分为两个亚相,一种为泥岩相,另一种碳酸盐相。碳酸盐相是石灰岩矿赋存空间,矿体呈透镜状、似层状产出,沿走向及倾向表现为膨胀、收缩。福建省石灰岩矿资源主要赋存于石炭系船山组(C_3c)和二叠系栖霞组(P_1q)地层中,占92%以上,赋存于三叠系地层中的石灰岩矿约占5.63%。本文对在三叠系地层中寻找石灰岩矿有重要指导意义。The Yingkeng deposit occurs in the lower Triassic Xikou group（T_1x）. Its sedimentary face belongs to relatively highenergy environments of intertidal-basin face, which is mainly controlled by tidal action. According to petrological characteristics and sedimentary characteristics, the lower Triassic Xikou group can be subdivided into mudstone face and carbonate face. The limestone ores are occurred in carbonate face as lenticular and stratiform, and are expansive and contractive along the strike and dip.The limestone ore resource in Fujian province occurred mainly in the Carboniferous Chuanshan group（C_3c） and the Permian Qixia（P_1q）, which account for upwards of 92%, and the reserves in the Triassic account for about 5.63%. This study is of great significance in searching the limestone deposit in the Triassic.

关 键 词：下三叠统溪口组 石灰岩矿 地质特征 矿床成因 

分 类 号：P619.225[天文地球—矿床学]