摘要
利用沉积物中的主量、微量和稀土元素能够很好地记录和反映古环境性质及其演化信息的特性。通过全稀土元素、主量元素及Sr/Ba、V/Cr、Ni/Co、U/Th和V/(V+Ni)等微量元素指标,综合分析还原了塔西南二叠系棋盘组沉积环境特征。另外,通过较真实反映氧化还原条件的TOC-SFe关系进一步佐证了V/Cr、Ni/Co和U/Th指标的指示结果。
The major, trace and rare earth elements in the sediments can well record and reflect the characteristics of paleoenvironmental properties and evolutionary information. The sedimentary environment characteristics of Qipan formation in the southwest of Tarim basin was analyzed by comprehensive analysis of rare earth elements, major elements and indexes, such as Sr/Ba, V/Cr, Ni/Co, U/Th and V/（V＋Ni）. In addition, the results of the V/Cr, Ni/Co and U/Th indices were further supported by the TOC-S-Fe relationship that reflects the redox conditions more accurately.
出处
《煤炭技术》
CAS
2018年第1期122-124,共3页
Coal Technology
基金
中国地质调查局地质调查项目(12120115002901-01)
关键词
主量元素
微量元素
沉积特征
塔西南盆地
棋盘组
major elements
trace elements
sedimentary environment
Tarim basin
Qipan formation
