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报道了在个旧锡矿松树脚矿区发现的脉状锡石-赤铁矿-方解石新型矿体,认为该新型矿体很可能是成矿流体运移的通道,同时对其成因进行了初步探讨。通过与红海型热水沉积矿床的特征进行对比分析,提出个旧锡矿“层间氧化矿”以及红海型热水沉积矿床中铁氧化物型矿床可能存在2种成因模式:第一种是热卤水自海水向海底沉积物、从上到下的热卤水分层氧化模式;第二种是成矿流体自地下深部向海底的从下到上逐步氧化模式。
This paper reports the new vein of hematite - hematite - calcite discovered in Songshu foot mining area of Gejiu, suggesting that the new ore body is likely to be the passage for the ore - forming fluids to migrate and its origin is also discussed. By comparing with the characteristics of the Red Sea type hydrothermal sedimentary deposit, it is suggested that there may be two kinds of generative modes for the iron oxide type deposits in Gejiu tin deposit and “interlayer oxide ore” and the Red Sea type hydrothermal sedimentary deposits: the first type is hot Brine from the seawater to the sea floor sediment, from top to bottom hot brine stratified oxidation mode; the second is the ore-forming fluid from the underground deep to the sea from the bottom to the gradual oxidation mode.