摘要
通过对阿尼玛卿混杂岩带复理石楔岩片砂板岩稀土元素、微量元素综合研究，认为复理石楔岩片砂板岩的大地构造环境为活动大陆边缘，东段更接近活动大陆边缘的大陆岛弧环境，反映出一定的古地理格局；通过对硅质岩泥岩岩片的硅质岩中稀土元素、微量元素及结合放射虫动物群的研究，认为其是靠近大陆边缘“非热水成因”的深海沉积．
A comprehensive investigation into the rare earth elements and trace elements of the sandstone and slate in the flysch wedge microlithons located in the Animaqing melange zone is made. The investigation shows that the geotectonic environment of the sandstone and slate in the flysch wedge microlithons belonged to the active continental margin. The environment of its eastern section is closer to the continental island arc environment of the active continental margin, reflecting a certain palaeo_geographical pattern. In addition, the investigations into rare earth elements and trace elements of the silicalite in the silicalite and mudstone microlithons and also into the radiolarian fauna indicate that the geotectonic environment mentioned in this paper was the deep_sea sedimentary environment of “non_hydrothermal origin” close to the continental margin.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第2期111-115,共5页
Earth Science-Journal of China University of Geosciences
关键词
沉积地球化学
大地构造背景
混杂岩带
东昆仑
sedimentary geochemistry, geotectonic environment, Animaqing melange zone, Eastern Kunlun.
