浅谈风化壳红土型金矿的形成条件及找矿方向

在湿热的气候条件下,红土化作用可使金在风化壳中迁移再富集。发育完好的红土型风化壳常呈现三层结构,金主要富集在红土化较强烈的中上部。稳定的陆块、富金的原岩、湿热的气候、准平原的地貌等是重要的成矿条件。我国华南的赣中、闽西、粤西等地区是有利的成矿远景地区,红土型金矿埋藏浅,易勘探,易采易炼,是今后找矿值得重视的矿化类型。

A PRELIMINARY DISCUSSION ON METALLOGENETIC CONDITIONS AND PROSPECTING ORIENTATIONS OF THE LATERIZED GOLD DEPOSIT IN WEATHERING CRUST

In the humid-warm climatic conditions, the laterization can cause gold to be migrated and reconcentrated in weathering crust. The well developed weathering crust often presents three-layer structure, gold is primarily concentrated in the middle-upper part where the laterization is relatively intensive. The stable land block, gold rich primitive rock, humid-warm climate, peneplanated landform etc, are important metallogenetic conditions. The central Jiangxi, western Fujian and western Guangdong in South China are relatively favourable metallogenetic prospective areas. The laterized gold deposits are shallow-buried, easy for exploration, mining and smelting,and will be the important mineralization type to which we should pay attention in the future.