论文部分内容阅读
从区域地质背景、岩石学、岩石化学、微量元素、氧同位素及稀土元素组成等方面论证东川铜矿含铜“礁—硅岩组合”中的含铜硅质条带—硅质白云岩为海底喷流热水沉积成因；提出了该类层状铜矿的深源含铜富硅混合热液海底喷流—生物富集的沉积成岩成矿模式。并提出东川落雪式层状“马尾丝”铜矿含矿岩系为“含铜礁—硅岩组合”的新观点。
From the regional geological background, petrology, petrochemistry, trace elements, oxygen isotopes and composition of rare earth elements such as Dongchuan Copper copper-bearing “reef - Silica combination” of copper-bearing siliceous bands - siliceous dolomite The origin of hydrothermal sediments from submarine jets was proposed. Sedimentary diagenetic metallogenic model of deep-source copper-rich silicon-rich mixed hydrothermal seafloor-bio-enrichment was proposed. And put forward a new viewpoint that the Dongchuan snow-lamellar “Mawei Si” copper ore-bearing rock series is “copper-bearing reef-silicalite combination”.