梅山群的变质岩石学特征及其意义  

METAMORPHIC PETROLOGIC FEATURES OF MEISHAN GROUP AND ITS SIGNIFICANCE

作　　者：王果胜 赖兴运 马文璞 

出　　处：《现代地质》1997年第1期111-117,共7页Geoscience

基　　金：1:5万苏仙石幅;金寨县幅区调项目

摘　　要：梅山群是金寨一带产于佛子岭群和石炭系之间，主要由斜长角闪岩、变粒岩、石榴长石云英片岩、大理岩等组成的变质岩系。其变质相为绿帘角闪岩相—角闪岩相，形成的温压条件分别为Ｔ＝５１２～６７９℃、Ｐ＝０５～０６９９ＧＰａ。梅山群的变质岩石学特征表明：它不同于石炭系，在区域上与仙人冲组和原小溪河组的一部分相当。The Meishan Group laying between the Fuziling Group and the Carboniferous consists of metamorphic rocks including plagioclase amphibolite, granulite, quartz schist and marble. The metamorphic facies is epidote amphibolite facies and amphibolite facies, the temperature is 512～679℃ and the pressure is 0 5～0 699GPa. Characters of the rocks of the Meishan Group show that it is different from the Fuziling Group and the Carbouiferous. It may be correlated with the Xianrenchong Formation and a part of the original Xiaoxihe Formation. It may exist under the Fuziling Group in sequence.

关 键 词：变质岩 梅山群 大别山 岩石学 

分 类 号：P588.3[天文地球—岩石学]