A Study on Occurrence Modes and Enrichment Patterns of Lower Cambrian Black Shale Series in Northern Guizhou Province, China
详细信息
- 责任者：Yang Jian (Southwest University of Science and Technology ; Mianyang 621010 ; China) ; Yi Facheng
- 刊名：Acta Mineralogica Sinica
- 出版年：2012
- 卷期：32(2)
- 关键词：黑色岩系 ; black rock series ; 富集 ; enrichment ; 元素地球化学 ; elements geochemistry ; 贵州 ; Guizhou Province
- 页码：p.281-287
- 图表：3 illus., 1 table, 41 refs.
- 分类号：0600
- issnNo：ISSN1000-4734
- isbnNo：CN52-1045/P
摘要
///Based on the analysis of geological and geochemical characteristics, combining with former researches, this paper deals with occurrence modes and enrichment patterns of elements in Lower Cambrian black shale series in the northern Guizhou Province, China. The black shale series are rich in organic matters and clay minerals, mainly with the sulfide in Ni-Mo ore bed, indicating that occurrence modes of elements are of sulfide, organic matter bound and clay mineral adsorption. Geochemical determination revealed anomalies of noble metal elements, REE and other trace elements in multi-element-rich strata of black shale series, which have relatively higher contents than those in its overlying and underlying beds. And high contents of elements might be resulted from paleogeographical conditions, tectonic movement, marine hydrothermal movement and noxic events.
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