摘要
深熔岩石的岩相学特征是鉴别岩石是否经历了深熔作用改造的直接证据,作者以闪长岩作为实验样品,进行了初级、中级、高级三种级别的熔融实验,获得了不同熔融程度条件下的岩相学特征。具体表现为:初级熔融阶段,岩石中的含水矿物发育熔融港湾结构;中级熔融阶段,矿物中发育熔蚀乳滴结构和熔蚀穿切(细脉)结构;高级熔融阶段,主要发育熔蚀残余结构。这些结构对于岩石是否遭受了深熔作用的改造以及改造程度的界定具有一定的参考意义。
The petrographic character of anatexis rocks is the direct evidence to distinguish whether the rocks experience anatexis alteration.The author uses the diorite as experimental samples,manipulations a primary,secondary and advanced three-level melting experiments and obtains petrographic characters of melting conditions in different degrees.The specific phenomenas are that minerals included in rocks develop melting-eroding fleet structure in the primary melting stage and melting-eroding star-shape and shuttle-cutting（thin dyke） structures in the secondary stage and mainly melting-eroding remainder structure in the advanced stage,which play an important role in judging wheter the rocks suffer anatexis rebuilding and the degree of alteration.
出处
《吉林地质》
2010年第4期10-12,共3页
Jilin Geology
