One tin deposit in Yunnan Province occurred in the slate of Mei dang Formation,Dalongkou Formation carbonate rock and granite fracture zone of the Presinian Kunyang Group.The ore-controlling structure is faulted and the favorable rock mass is granite.The weathered residual slope-shaped sand tin ore is exposed on the surface,and the primary ore in the deep part is mainly skarn type and polymetallic sulfide type tin ore.Due to the shallow engineering control in the past,the deep ore has great prospecting potential.
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