地质找矿论丛2013，Vol.28Issue(1)：101-105,5.DOI:10.6053/j.issn.1001-1412.2013.01.014
贵州瓮安陡山沱组磷块岩的地球化学特征
Research on the geochemical characteristics of phosphorites of Doushantuo Formation in Wong'an county, Guizhou
密文天 1李德亮 1冯志强 1武新春 1牛显1
作者信息
摘要
Abstract
Doushantuo stage of Sinian period in Wong'an region is an important horizon of phosphorite in China. Biological congregation is an important factor for forming phosphorite deposits. Profile geochemical research of phosphorite sequence shows that the enriched layer of phophorite is dominated by phosphate minerals of P2O5 and CaO. The phosphorite is divided into two sub-types, i. e. dolomitic debris phosphorite and carbonaceous phophorite. The biological factors affected the trace element's enrichment, such as Pb, As,Ba, Sr etc. and Pb content reaches to 1 446X10-6. The distribution characteristic of trace elements shows that the formation of phosphorite is closely related to bacteria and algae. 关键词
陡山沱组/磷块岩/地球化学/瓮安磷矿/贵州省Key words
Doushantuo Formation/ phosphorite/ geochemistry/ Wong'an phosphorite deposit/ Guizhou province分类
天文与地球科学引用本文复制引用
密文天,李德亮,冯志强,武新春,牛显..贵州瓮安陡山沱组磷块岩的地球化学特征[J].地质找矿论丛,2013,28(1):101-105,5.
