摘要
东昆仑西祁漫塔格地区东沟一带,发育一套成分演化序列的早三叠世花岗岩体,通过系统1∶5万区调工作,对该岩体进行了详细的研究和划分,建立了早三叠世西沟口序列的谱系填图单位,其似斑状二长花岗岩岩体中的局部地段出现大量闪长岩类包体,经对似斑状二长花岗岩和闪长质包体岩石学、矿物学、岩石地球化学等详细研究发现,二者在成因上具联系性,演化上具亲缘性,闪长质包体是不混溶包体。
In the Donggou vicinity of Qimantage area,west of East Kunlun,there is a set of compositional evolution sequence Early Triassic granitic plutons.By 1∶ 50 000 regional geological investigation,we carried out a detailed study and classification.Pedigree mapping unit of Early Triassic Xigoukou sequence was established.The Local section of Porphyritic monzogranite pluton presents a large number of diorite xenoliths.After a detailed study of petrology,mineralogy,geochemistry of homoporphyritic monzogranite and Dioritic enclaves,we found the two are closely related in genesis and with affinity in evolution.The dioritic enclave was immiscible inclusions.
出处
《青海大学学报（自然科学版）》
2012年第5期55-59,共5页
Journal of Qinghai University(Natural Science)
基金
中国地调局资助项目(1212010781056)
