摘要
滇东南南温河地区猛硐岩群经历了两期区域变质作用。加里东期变质矿物有十字石、铁铝榴石、黑云母等 ,最高变质温度约 690°C ,压力 0 5GPa ,是一期中压区域动力热流变质 ;印支期变质矿物主要为绢 (白 )云母、绿泥石等 ,为区域低温动力变质。
The Mengdong Lithological Group in Nanwenhe area of Southeast Yunnan has expierenced 2 periods of regional metamorphism.The Caledonian metamorphic minerals are staurolite,almandine and biotite,etc,with the highest metamorphic temperature 690 °C and pressure GPa,which is a redional medium pressure dynamothermal metamorphism.And the Indosinian metamorphic minerals are mainly sericite(muscovite,chlorite,etc,showing a regional low temperature dynamic metamorphism.
出处
《云南地质》
2001年第1期25-33,共9页
Yunnan Geology
关键词
猛硐岩群
变质作用
变质矿物
石榴石
片麻岩
变质时代
Mengdong Lithological Group
Characteristic Mineral
Metamorphism
Southeast Yunnan
