赣北修武地区下寒武统黑色岩系地球化学特征与沉积环境判别  

GEOCHEMISTRY AND SEDIMENTARY ENVIRONMENT OF LOWER CAMBRIAN BLACK ROCK SERIES IN XIUWU REGION

作　　者：王运[1,2] 韩秋 伯慧 李文成 王鹤 王涛涛 周胜 

机构地区：[1]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西抚州344000 [2]江西省煤田地质勘察研究院,江西南昌330000

出　　处：《甘肃地质》2013年第3期28-34,共7页Gansu Geology

基　　金：放射性地质勘探与技术国防重点学科实验室开放基金项目(编号:2011RGET019)

摘　　要：通过野外地质调查、常量及微量地球化学分析等方法,初步查明修武地区下寒武统黑色岩系尤其是石煤中富集钒铀等多金属元素;稀土特征为轻稀土相对富集,轻重稀土分馏程度较高,Ce、Eu均为负异常;黑色岩系是在大陆边缘沉积,沉积环境为干燥气候的还原环境,物源应为陆源和海底热水沉积物两者混合组成,且以陆源为主。Based on the field geological survey, element chemical analysis and other methods, it is found that V-U polymetallic elements are enriched in the lower Cambrian black rock series, especially in the stone coal. Additionally, REE is characterized as relatively rich in light rare earth, high fractionation of light and heavy rare earth allow, and negative anomalies of Ce, Eu. This series of black rock should be deposited in reducing environment and dry climate of the continental margin.

关 键 词：修武盆地 下寒武统 黑色岩系 地球化学特征 江西 

分 类 号：P595[天文地球—地球化学]