Peacock, CL orcid.org/0000-0003-3754-9294, Lalonde, SV and Konhauser, KO (2017) Iron minerals as archives of Earth's redox and biogeochemical evolution. In: Ahmed, IAM and Hudson-Edwards, KA, (eds.) Redox-reactive Minerals: Properties, Reactions and Applications in Clean Technologies. EMU Notes in Mineralogy, 17 . Mineralogical Society , pp. 121-172. ISBN 9780903056571
Abstract
Iron minerals provide sedimentary repositories of chemical information pertaining to Earth’s redox and biogeochemical evolution, from before the Great Oxidation Event some 2.5 billion years ago, to more recent events occurring up to and into the Cenozoic Era. The most powerful chemical information recorded in iron minerals comes in the form of trace-element signatures, most notably their concentrations and stable isotope compositions. Here we provide an introduction to iron mineralogy and the processes responsible for the accumulation and preservation of trace-element signatures in iron minerals, focusing on the deposition of iron minerals in three key ancient sedimentary archives: banded iron formations, ferromanganese crusts and black shales. We introduce the theory and practical use of non-traditional trace-element stable-isotope systems in redox and biogeochemical research, focusing on the recent use of iron, molybdenum and chromium stable isotopes to shed light on the redox and biogeochemical information stored in iron-rich sediments. By analysing both trace-element concentrations and stableisotope compositions recorded in iron minerals, iron-rich sedimentary archives are providing a unique window into the past, where changes in trace-element signatures shed light on major transitions in Earth’s redox and biogeochemical evolution.
Metadata
Item Type: | Book Section |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Earth Surface Science Institute (ESSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Nov 2017 16:04 |
Last Modified: | 17 Nov 2017 16:04 |
Published Version: | http://www.minersoc.org/EMU-notes-17.html |
Status: | Published |
Publisher: | Mineralogical Society |
Series Name: | EMU Notes in Mineralogy |
Identification Number: | 10.1180/EMU-notes.17.14 |
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Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:123877 |