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258高地岩金矿产于印支期花岗闪长岩侵入体中,含矿岩石为碎裂蚀变花岗岩,矿体呈近北西向平行排列,具有膨缩和分支复合等特点,品位变化较大,该矿床属中低温热液蚀变岩型金矿床。
The 258 highland gold deposits originated from the Indosinian granodiorite intrusions. The ore-bearing rocks are fractured and altered granites. The ore bodies are arranged in a nearly north-west direction with the characteristics of swelling and branching compounding, , The deposit is a medium and low temperature hydrothermal alteration rock type gold deposit.