广西罗城地区某锡矿床矿石组构特征

The ore fabric characteristics of a tin deposit in the Luocheng area of Guangxi

通过对位于九万大山地区南缘某锡矿床矿石结构构造特征进行研究,总结出该矿床矿物共生组合以及组构特征。主要结构包括半自形-近半自形粒状结构、它形粒状-半自形粒状结构、半自形-近半自形短柱状或粒状结构、鳞片状结构、显定向分布结构等;构造包括细脉浸染状构造、块状构造等,这些组构特征表明成矿作用具有多期多阶段的特征,并指示出热液成矿兼有后期构造改造的结构构造特征。

By studying the structural characteristics of the ore structure of a tin deposit located on the southern edge of the 90000 Dashan area,we have summarized the mineral symbiosis and fabric characteristics of the deposit.The main structures include semi self shaped to nearly semi self shaped granular structures,other shaped granular to semi self shaped granular structures,semi self shaped to nearly semi self shaped short columnar or granular structures,scaly structures,and significantly oriented distribution structures;The structure includes fine vein disseminated structures,block structures,etc.These structural features indicate that mineralization has the characteristics of multiple periods and stages,and indicate the structural characteristics of hydrothermal mineralization combined with later structural transformation.