摘要
湖南新晃贡溪重晶石矿床赋存于下寒武统牛蹄塘组中。矿体呈层状、似层状和透镜状。矿石矿物为重晶石，脉石矿物主要有方解石、粘土矿物和石英等。矿石以镶嵌粒状变晶结构，块状和纹层状构造为主。地球化学特征表明成矿物质由含矿热卤水提供，属热水化学沉积型矿床。文章还提出了其成矿模式。
The Gongxi barite deposit hosts in the Niutitang formation of the lower Cambrian. The orebody appears in bedded, near bedded and lenticular shapes. The useful ore mineral is barite and the gangue minerals are mainly calcite , clay mineral and quartz et al. The ore mainly has cyclopean granular texture and massive and laminar structures . The geochemical characteristics reveal that the metallogenic elements are derived from the subaqueous ore bearing hot brine. The Gongxi barite deposit belongs to the hot water chemical sedimentation deposit, and the metallogenic model is put formard.
出处
《成都理工学院学报》
CSCD
1999年第1期92-96,共5页
Journal of Chengdu University of Technology
基金
国家自然科学基金
关键词
重晶石矿床
热水
化学沉积
地球化学
Gongxi
barite deposit
hot water
chemical sedimentation
