Episodic negative anomalies of cerium at the depositional onset of the 2.65-Ga Itabira iron formation, Quadrilátero Ferrífero of Minas Gerais, Brazil

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F16%3A00000110" target="_blank" >RIV/00025798:_____/16:00000110 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0301926816000528" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0301926816000528</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.precamres.2016.01.031" target="_blank" >10.1016/j.precamres.2016.01.031</a>

Result language
angličtina
Original language name
Episodic negative anomalies of cerium at the depositional onset of the 2.65-Ga Itabira iron formation, Quadrilátero Ferrífero of Minas Gerais, Brazil
Original language description
Magnetite bands in sericitic phyllite of the Batatal Formation mark the transition to the overlying 2.65-Ga Itabira iron formation, or Cauê Itabirite, in the Quadrilátero Ferrífero of Minas Gerais, Brazil. The magnetite bands have low (non-crustal) Th/U ratios, suprachondritic Y/Ho ratios and sporadic anomalies of Ce that are characterised as truly negative. The data point to mild oxygenation of sea water at the depositional onset of the Itabira iron formation some 200 Ma before the Great Oxidation Event.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
—

Project
<a href="/en/project/GA13-15390S" target="_blank" >GA13-15390S: Re-Os geochronology of ore mineralizations from the Bohemian Massif with possible metallogenic implications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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