辽宁省辽阳县郭家含稀土铁矿床矿床地质特征及成因探讨

Geological features and genesis of Guojia rare earth-bearing iron deposit in Liaoyang County,Liaoning Province

郭家含稀土铁矿床赋存于析木—草河口复向斜北翼下元古界辽河群里尔峪组一段地层中,含稀土铁矿体呈似层状环形分布于郭家圆形的穹窿构造内,经研究及矿体顶板硅酸盐分析尼氏数值计算,初步认定该矿床为火山碎屑沉积变质再造矿床。

The Guojia rare earth-bearing iron deposit is occurred in the strata of the Ximu—Caohekou synclinorium north wing of Lower Proterozoic Liaohe Group,Lieryu Formation.The rare earth-bearing ore body shows layered ring,which distributed in Guojia circular dome structure.Through research and analysis of Niggli-number calculation of ore body roof silicate,initially determined that the deposit belongs to clastic volcano sedimentary metamorphic reconstruction deposit.