砂锡矿 meaning in English

alluvial tin
tin placer deposit

After the investigation and study on alluvial tin deposit in changning dayishan mine , conclude that its geologic setting mainly iles in its structure and land form a proper scale of alluvial tin deposit were found in the limestone solution cave around dayishan granite body
摘要通过对常宁大义山砂锡矿的调查研究，总结分析了常宁大义山砂锡矿形成的地质条件主要受构造条件和地貌条件的影响。
It is shown that the radioactivity level of tin polymetallic ore , undressed ore and adjacent formation is affected by the strata and mineralization type , the radioactivity level of sulfide ore is not high as a whole , while that of tin ore generally is several times higher than the background value and that of debris and slag is also relatively high , whose impact on the environment is not neglectable
锡多金属矿原矿及围岩放射性水平受地层与矿化类型影响很大，硫化矿整体放射性水平不高，砂锡矿却普遍高出背景值数倍，尾矿、炉渣放射性水平也相对较高，对环境的影响不容忽视。