The original ore types of gold mainly include siliceous gold-bearing rock, calcareous siliceous gold-bearing rock and aluminium siliceous gold-bearing rock.
原生金矿石包括硅质金矿石、钙硅质金矿石、铝硅质金矿石三种类型，原生银矿石主要是硅质银矿石。
2
Sedimentation - exhalation siliceous rocks are of great significance in the study of ore deposits.
喷流-热水沉积硅质岩对于矿床研究具有重要意义。
3
The ore bearing wall rocks are composed mainly of siliceous phosphorites.