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The chemical conditions of the late Archean Hamersley basin inferred from whole rock and pyrite geochemistry with Δ33S and δ34S isotope analyses

Gregory, Daniel D; Large, Ross R; Halpin, Jacqueline A; Steadman, Jeffery A; Hickman, Arthur H; Ireland, Trevor; Holden, Peter

Description

The well-preserved late Archean sedimentary rocks of the Fortescue and Hamersley Basins in Western Australia offer fascinating insights into early earth ocean chemistry prior to the Great Oxidation Event (GOE). In this study, we use a combination of whole rock geochemistry, LA-ICPMS trace element analysis of sedimentary pyrite and pyrrhotite and SHRIMP-SI sulfur isotope analyses to elucidate the chemical changes in these sedimentary rocks. These proxies are used to examine chemical conditions...[Show more]

CollectionsANU Research Publications
Date published: 2015-01-15
Type: Journal article
URI: http://hdl.handle.net/1885/13213
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/j.gca.2014.10.023

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