摘要
岩浆矽卡岩,成因上与钙矽卡岩浆或矽卡岩质熔流体的贯入结晶作用和隐爆固结作用有关。按其成岩方式不同,分为贯入矽卡岩和隐爆矽卡岩一角砾岩。前者主要呈脉状,亦呈小岩床、不规则岩枝产出;后者呈角砾岩筒产出。还有一种过渡类型,即贯入一交代矽卡岩,主要呈脉状产出。这类矽卡岩比较稀少,但常含有与其成岩过程直接相关的,由特殊成矿作用形成的富铜(金、银)矿床(体)。它的发现和确定具有重要理论意义和实际意义。
Magmatic skarn, a new type of skarn in a broad sense, is genetically related to injection crystalliza- tion and hidden explosive consolidation of calci-skarn magma or skarn melt. Injection skarn and hidden explosive skarn-breccia are classified on their different diagenetic processes. A transitional type is rare injection-metasomatic skarn which often hosts copper (gold, silver) -rich ore deposit (body) formed by special metallogenetic process and immediately related to diagenesis of the skarn.
出处
《安徽地质》
1992年第1期12-26,81,共16页
Geology of Anhui
