The paleoclimatic signatures of supergene metal deposits

Vasconcelos, Paulo M., Reich, Martin and Shuster, David L. (2015) The paleoclimatic signatures of supergene metal deposits. Elements, 11 5: 317-322. doi:10.2113/gselements.11.5.317

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Author Vasconcelos, Paulo M.
Reich, Martin
Shuster, David L.
Title The paleoclimatic signatures of supergene metal deposits
Journal name Elements   Check publisher's open access policy
ISSN 1811-5217
1811-5209
Publication date 2015-10-01
Sub-type Article (original research)
DOI 10.2113/gselements.11.5.317
Open Access Status Not Open Access
Volume 11
Issue 5
Start page 317
End page 322
Total pages 6
Place of publication Quebec, QC, Canada
Publisher Mineralogical Society of America
Language eng
Subject 1901 Earth and Planetary Sciences (miscellaneous)
1906 Geochemistry and Petrology
Abstract Supergene metal deposits host a comprehensive record of climate-driven geochemical reactions that may span the entire Cenozoic. Products of these reactions can be dated by a variety of radiogenic isotopic methods, such as Ar/Ar, (U-Th)/He, U-Pb, and U-series. The frequency of mineral precipitation, determined by dating a representative number of samples of a particular mineral collected from distinct parts of the supergene ore body, reflects times in the geological past when weathering conditions were conducive to water-rock interaction. The frequency of mineral precipitation through time permits identifying periods in the geological past when climatic conditions were most conducive to chemical weathering and supergene ore genesis.
Formatted abstract
Supergene metal deposits host a comprehensive record of climate-driven geochemical reactions that may span the entire Cenozoic. Products of these reactions can be dated by a variety of radiogenic isotopic methods, such as 40Ar/39Ar, (U–Th)/He, U–Pb, and U-series. The frequency of mineral precipitation, determined by dating a representative number of samples of a particular mineral collected from distinct parts of the supergene ore body, reflects times in the geological past when weathering conditions were conducive to water–rock interaction. The frequency of mineral precipitation through time permits identifying periods in the geological past when climatic conditions were most conducive to chemical weathering and supergene ore genesis.
Keyword (U-Th)/He
40Ar/39Ar
Climate
Supergene minerals
Weathering geochronology
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2016 Collection
 
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