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Title

Use of laser ablation ICP-MS to determine trace element distributions in coals, with special reference to V, Ge and Al

AuthorsSpears, D. A.; Gómez Borrego, Ángeles ; Cox, A.; Martínez Tarazona, María Rosa
KeywordsICP-MS
Coal maceral
Trace elements
Element affinity
Coal petrography
Issue Date20-Feb-2007
PublisherElsevier
CitationInternational Journal of Coal Geology 72(3-4): 165-176 (2007)
AbstractLaser ablation ICP-MS has been used to produce element profiles from polished coal samples. The elements analysed (V, Ge, Ni, Cu, Zn, Sr and Ba) were those known to have an organic association, with the addition of Al and Fe as controls on the clay and pyrite abundances. The element profiles were compared with the petrography and a statistical analysis was also carried out. Sporinite was found to have low trace element concentrations, inertinite higher concentrations of detrital elements and vitrinite higher concentrations of V, Ge and Al. The relationships between these elements are explored and all are thought to be present in the organic matter and not as minerals. It is thought that these elements became concentrated during diagenesis, with the possibility that some of the Al could be residual. The Cu/Ni ratio in the pyrite is relatively constant, suggesting constant ionic proportions during diagenesis, and possibly a seawater source.
Description12 pages, 7 figures, 3 tables.-- Printed version published on Nov 3, 2007.
Publisher version (URL)http://dx.doi.org/10.1016/j.coal.2007.02.001
URIhttp://hdl.handle.net/10261/11187
DOI10.1016/j.coal.2007.02.001
ISSN0166-5162
Appears in Collections:(INCAR) Artículos
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