花岗岩类岩石  

GRANITOID ROCK

作　　者：张竹如[1] 陈世桢[1] 贾小瑛 聂爱国[1] 

机构地区：[1]贵州工学院地质系

出　　处：《贵州工学院学报》1994年第3期33-50,共18页

基　　金：国家黄金局资助

摘　　要：区内出露４个花岗岩体：（１）辉山花岗岩；（２）鹊山花岗岩；（３）高陵花岗岩；（４）朵山花岗岩。其中辉山花岗岩为作者发现。通过岩石特征、岩石化学成分，Ｒｂ—Ｓｒ同位素年龄测定１７０Ｍａ±１０，辉山花岗岩具重熔花岗岩特点，是以胶东群为基体的壳源重熔型花岗岩，以底辟的方式上升为原地及半原地型花岗岩，鹊山花岗岩中存在着大量交代残留体及稀土元素含量及分配型式特点类似交代花岗岩。There are four granite bodies in the region:(1)Hut shan granite3(2)one Shan granitel(3)Gao Ning granite3(4)Do Shan granite, and Hut Shan granite is discovered by the writers.Through determining their rock character, rock chemical eomposition and isotopic age 170Ma±10 (rubidium-strontium age method), the writers concluded that Hut Shan granite. Do Shan granite and Gao Ning granite have the character of anatectite granite: they are the crust anatectite granite in the base of Jiao Dong group risen aS autochthonous and hypoutochthonous granite by way of diapir; they formed in Indo Chinese epochearly Yonshan epoch.In one Shan granite, there are many metasomatite remains;and,its REE content as well as character of REE distribution and pattern is similar to metasomatic granite.

关 键 词：辉山花岗岩 金矿床 花岗岩 重熔型花岗岩 

分 类 号：P618.510.5[天文地球—矿床学] P588.121[天文地球—地质学]