小兴安岭伊洛特河地区中—晚侏罗世花岗闪长岩体地质特征及形成时代探讨  

Discussion on geological characteristics and formation time of the midlate Jurassic granodiorite in the Yiluote River area of the Lesser Khingan Mountains

作　　者：于绍鹏 翟福君 李永胜 郑常青[1] YU Shao-peng;ZHAI Fu-jun;LI Yong-sheng;ZHENG Chang-qing(College of Earth Sciences,Jilin University,Changchun 130061,Jilin,China;The Institute of Jilin Nonferrous Metal Geological Exploration Bureau,Changchun 130012,Jilin,China;Institute for the application of geological and mineral testing of Heilongjiang Province,Harbin 150036,Heilongjiang)

机构地区：[1]吉林大学地球科学学院,吉林长春130061 [2]吉林省有色金属地质勘查局研究所,吉林长春130012 [3]黑龙江省地质矿产测试应用研究所,黑龙江哈尔滨150036

出　　处：《吉林地质》2018年第2期1-5,共5页Jilin Geology

摘　　要：小兴安岭伊洛特河地区中生代岩浆活动频繁,中—晚侏罗世花岗闪长岩体在规模上和岩石化学等方面较有代表性。本文从岩体地质特征、岩石学及岩石化学特征等多方面入手,确认了该套岩浆的演化特征和成因类型;通过同位素年代学研究,进一步厘清了该套岩体的形成时代。The mesozoic magmatism is active in the Yiluote River area of the Lesser Khingan Mountains, the midlate Jurassic granodiorites are more representative in scale and rock chemistry.Based on the geological characteristics, petrology and petrochemistry characteristics and other aspects of rock mass, it is confirmed that the evolutionary signature and genetic type of the magma. Through the research of isotopic chronology, the formation time of the rock mass was further clarified.

关 键 词：伊洛特河 花岗闪长岩体 地质特征 形成时代 

分 类 号：P619.222[天文地球—矿床学]