摘要
大容山－十万大山岩带中的紫苏辉石王青石花岗岩套位于桂东南海西－印支褶皱带，富含堇青石、紫苏辉石、石榴石、矽线石、红柱石、刚玉等。矿物组合复杂，成因多样，可划分为岩浆结晶成因、变质残留成因和反应成因３种类型。根据各类岩石中矿物的特征分析，认为岩套中的花岗岩类岩石部分来源于泳熔花岗岩桨的源岩不熔残余，另一部分来自由岩捕虏体变质后又被熔浆改造的不熔残余。是由区域变质岩经不同温压条件，不同深度深熔作用形成的壳源型花岗岩。
Situated in the Hercynian－Indosinian folded zone of Southeast Guangxi，the hypersthenecordierite granite suite along Darongshan－Shiwandashan rock zone abounds with cordierite，hypersthene，garnet，sillimanite，andalusite，corundum，etc., Its mineral association is com－plicated and its origin can be divided into three types：magmatic crystallization，metamorphosedresidual and reaction types. According to the features of minerals of various rocks，it is consid-ered that the granitoid of the suite derived from the nonmelted residue of deep-seated meltedgranitic magma， partly from the nonmelted resid ue of xenolith of country rocks metamor-phosed first and then refomed by melted magma. The granitoid belongs to the crust－derivedtype granite produced from regional metamorphic rocks through different temperatures andpressures and deep－seated melting in different depths.
出处
《广西地质》
1995年第1期1-13,共13页
Guangxi Geology
关键词
紫苏辉石
堇青石
花岗岩套
矿物学
广西
：grariite suite，origin of mineral，crust－derived type，Darongshan－shiwan- dashan， Guangxi
