摘要
萨勒布尔提山上志留统克克雄库都克组为一套巨厚的火山碎屑浊积岩.该组的REE、主元素地球化学多数表明其物源为察汉文吉(O2C)组的岛弧型火山建造及哈拉铁布克(S2h)组的岩浆弧建造.形成的构造环境为大洋岛孤至活动大陆边缘之间.代表着由大洋向活动大陆转变的趋势.
The upper silurian system of the Shaerbuer mountain region of west Jungger is maga-formation of pyroclastic turbidite. studies of its REE and main element's geochemical charac-teristics, show that the Chahanmanjie group's (O2c) arc type volcanic formation and the Ha-latebuke group's (S2h) magma arc type formation are the provenance of it, and its tectonicsettings are between the ARC and ACM (active continental margin). Its environment pre-sents changes from ocean to continent.
关键词
火山碎屑浊积岩
物源
构造环境
浊积岩
pyroclastic turbidite
provennance
tectonic setting
sedimentary geochemistry