渭北晚古生代煤层中镧系元素的地球化学效应及理论意义  

Geochemistry of lanthanides in late Paleozoic coal from Weibei

作　　者：杨建业[1] 

机构地区：[1]西安科技大学材料科学与工程学院,陕西西安710054

出　　处：《燃料化学学报》2011年第12期887-892,共6页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(41172143);陕西省科技厅自然基金(07JK332)

摘　　要：运用数理统计的相关性分析方法研究了渭北晚古生代煤中镧系元素的地球化学行为。结果表明,在通常情况下,任一地质体中的镧系元素经球粒陨石标准化后的数值,会随着其+3价离子半径的变化而呈有规律的线性变化,不同地质体之间镧系元素的比值变化,也受控于其+3价离子半径,此为作者以前发现的'镧系元素地球化学效应'的另一种表现形式。据此,可对不同煤层或其他地质体之间稀土元素的迁移、分布及富集机理进行定性地对比探讨,这可成为稀土元素地球化学示踪作用的一种新型研究方法。Geochemistry of lanthanides in late Paleozoic coal from Weibei were studied by means of mathematical statistics methods. It was discovered that not only REE chondritenormolized in any geological changed with their ＋3 ionic radius, but also the ratio of REE among the different geological changed with their ionic radius. It is another manifestations of ＂the effect on geochemistry of Lanthanides＂ found. According to this effect, the migration, distribution and enrichment between different coal or other geological could be comparative discussed qualitatively, and it may become a new manner to study geochemical tracer of REE.

关 键 词：镧系元素 地球化学效应 球粒陨石标准化 煤 

分 类 号：TQ533[化学工程—煤化学工程]