The volcanic rocks in the southwest section of the Shizong-Mile tectonic belt in southeastern Yunnan are mainly composed of basalt,almond-shaped basalt and basaltic andesite,interspersed with a small amount of peridotite,volcanic breccia,and tuff.Scandium deposits mainly occur in the purple tuff of the eruption cycle sedimentary interface of the Emeishan basalt formation,and arelayered or quasi layered,obviously controlled by the stratigraphic layers.Preliminary analysis of the geological characteristics and ore controlling factors of scandium deposits in the area shows that the mineralization type is volcanic clastic sedimentary type.Based on primary selection and metallurgical experiments,the tuff type scandium deposits show good comprehensive utilization prospects.
关键词
凝灰岩型钪矿/层位控制/地质特征/成矿模式/滇东南/云南
Key words
Tuff Type Scandium Deposit/Layer Control/Geological Features/Metallogenic Model/Southeast Yunnan/Yunnan
维普
万方数据