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Ge/Si in Hamersley BIF as tracer of hydrothermal Si and Ge inputs to the Paleoproterozoic ocean

Alibert, Chantal; Kinsley, Leslie


Ge/Si and Ge/Fe ratios have been measured by laser ablation ICP-MS in selected sections of the Hamersley banded iron-formation (BIF), including ‘chert-siderite’ bands (i.e. carbonate- and silicate-facies BIF). The major Ge carriers are magnetite and hematite in the oxide-facies, and the Fe-rich silicates greenalite, minnesotaite and stilpnomelane in chert-siderite bands, while quartz has the lowest Ge/Si ratios (0.15–0.7 μmol/mol), in accord with discrimination against Ge in quartz. The...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/j.gca.2016.03.027


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