Rb - sr isochronal age ; the alxa fault block ; alkaline - rich intrusion ; suhaitu intrusion ; wenduerhao intrusion Rb - sr年阿拉善断块富碱侵入岩苏亥图岩体温都尔浩岩体
Nephrite deposits in qinghai province have occurred in contact belt between intermediate - acidic intrusive rocks and dolomite - marble 摘要青海软玉矿床产于中酸性侵入岩与大理岩接触带中。
Traditionally , various subphase belts for irruptive rock body are studied and analyzed by mainly drilling well and coring 传统上对侵入岩体各亚相带的研究和判断，主要通过钻井取心来认识。
2 . studied the characteristic and regularity of intrusion - related nickel deposits in china by comparing the deposits domestically and abroad 通过国内外和国内各矿床的比较，研究了我国与侵入岩有关的镍矿床的特点和规律性。
The ore - finding indexes of gold deposits of metamorphic rock category , volcanic rock category and intrusive igneous rock contact category have been summarized 系统总结了省内变质岩型金矿、火山岩型金矿和侵入岩型金矿的找矿标志。
Geochemical characteristics of the yanshanian intermediate - acid intrusive rocks in the tongling mineralization concentration area , anhui province , and their geological implications 铜陵矿集区燕山期中酸性侵入岩地球化学特征及其地质意义
They have both the flooding and the intrusive lithofacies , but also have the volcanic and the volcano vent lithofacies , and the lithology is mainly the middle acidic intrusive rocks 既有溢流相，又有侵入岩相，还有次火山岩相和火山通道相；岩性主要以中酸性侵入岩为主。
The top like a giant tortoise is the main peak of mengshan mountain with the height above sea level of 1156m , which is the second highest peak in shandong province 龟蒙顶主体岩石主要由距今27亿年左右形成的中酸性深成侵入岩? ?花岗闪长岩组成，为蒙山岩套龟蒙顶岩体的命名地。
With the increasing deepening of the study on crystallization mechanism of the magmatic system , the magmatic kinetic theory of volcanic and intrusive rocks has entered the stage of establishing a model 摘要随著岩浆体系结晶机理研究的不断深入，火山岩和侵入岩岩浆动力学理论已经进入到模型建立阶段。
The basic to ultra - basic rocks are distributed along suture zones , whereas the intermediate to acidic intrusives occur mainly to the south and north of the arsuo tectonic melange zone and the angren ophiolitic melange zone 基性-超基性岩沿结合带分布，而中酸性侵入岩主要分布在阿索蛇绿混杂岩和昂仁蛇绿混杂岩的南北两侧。
