Two phases of migmatization can be determined based on the features of veins and the relations amon.
根据脉体特征及相互关系 ,划分出第一期以富钠 (脉体为英云闪长岩、奥长花岗岩 )为特征和第二期以富钾 (脉体为钾长花岗岩 )为主的两期混合岩化作用。
The gemmiferous rocks in ruby and sapphire deposit of Aketao (Xinjiang) are characterized by augen and banded structures of migmatization.
红蓝宝石矿床为混合岩化作用成因，形成于高温低压条件
, low-grade, medium-grade, high-grade, contact and vein fenites in terms of newly formed mineral assemblages and textures and structures during the processes of fenitization, chemical composition and geological setting and distribution of the fenites as well as the .
按照在霓长岩化作用过程中形成的新生矿物组合、结构构造、化学成分、空间分布及物质来源等特征,霓长岩可以分为低级、中级、高级、接触和脉状等5种类型。
The dolomitization of improving reservoir nature of beach facies rocks in Feixianguan Lower Tri- assic in the north part of east Sichuan Basin and the control factors of reservoir nature of beach facies dolomitic reservoir and porous dolomite growth are discussed in this paper.
本文探讨了使四川盆地川东地区北部下三叠统飞仙关组滩相岩类储集性得以改善的白云岩化作用,滩相白云岩化储层的储集性及孔隙白云岩发育的控制因素。