... sudden collapse 突然塌陷 sulphide zone 硫化矿物带 sunk 向下凿岩 ...
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secondary sulphide zone 次生硫化物带
oxidized zone of sulphide deposit 硫化物矿床氧化带
secondary enriched zone of sulphide 硫化物矿床次生富集带
oxidation zone of sulphide deposits 硫化物矿床氧化带
·2,447,543篇论文数据，部分数据来源于NoteExpress
Pingcha gold deposit is a Sb-Au of rich in sulphide, controlled by the E-W secondary fracture and alteration zone and being small in scal but high in grade.
靖州平茶金矿为多硫化物型锑金矿床，矿化受近东西向次级断裂和蚀变带控制，矿床规模小，但品位高。
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