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Academic & Professional Books  Earth System Sciences  Geosphere  Geophysics & Geochemistry

Selenium Isotope Paleobiogeochemistry

By: Eva E Stüeken(Author), Michael A Kipp(Author)
Selenium Isotope Paleobiogeochemistry
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  • Selenium Isotope Paleobiogeochemistry ISBN: 9781108749169 Paperback Oct 2020 Usually dispatched within 6 days
    £14.99
    #253446
Price: £14.99
About this book Contents Customer reviews Related titles

About this book

The attraction of selenium isotopes as a paleoenvironmental tracer lies in the high redox potential of selenium oxyanions (SeIV and SeVI), the dominant species in the modern ocean. The largest isotopic fractionations occur during oxyanion reduction, which makes selenium isotopes a sensitive proxy for the redox evolution of our planet. As a case study we review existing data from the Neoarchean and Paleoproterozoic, which show that significant isotopic fractionations are absent until 2.5 Ga, and prolonged isotopic deviations only appear around 2.3 Ga. Selenium isotopes have thus begun to reveal complex spatiotemporal redox patterns not reflected in other proxies.

Contents

1. Introduction
2. Materials and Analytical Methods
3. Proxy Mechanics
4. Case Study
5. Future Prospects

Customer Reviews

By: Eva E Stüeken(Author), Michael A Kipp(Author)
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