四川都江堰市张家山灰岩矿地质特征及开发利用前景

Geological Features and Development Prospect of Zhangjiashan Limestone Deposit in Dujiangyan,Sichuan

都江堰市张家山灰岩矿位于扬子准地台龙门山-大巴山台缘坳陷之龙门山陷褶断束的懒板凳-白石飞来峰北东段,含矿层赋存于泥盆系上统沙窝子组(D3s)及二叠系下统栖霞、茅口组(P1q+m)地层中,矿体厚度稳定,形态简单,规模巨大,通过检测评价,可于建筑用骨料、水泥用石灰质原料、建筑用石料等,具有较好的开发利用前景。

Zhangjiashan Limestone Deposit in Dujiangyan lies in the northeast part of Laibandeng-baishiklip in the Longmensha fold-faulted zone of the Longmenshan-Dabashanplatformedge depression in Yangtze paraplatform.The ore-bearing beds are confined to the Upper Devonian Shawozi Formation(D3s)and the Lower Permian Qixia and Maokou Formation(P1q+m),with stable thickness,simple shape and large scale.The ores can be developed and utilized as aggregate for construction,calcareous material for cement,stone for construction with bright prospects.