Archaean chromitites show constant Fe 3+ /ΣFe in Earth's asthenospheric mantle since 3.8 Ga

Journal article


Rollinson, Hugh, Adetunji, Jacob, Lenaz, Davide and Szilas, Kristoffer 2017. Archaean chromitites show constant Fe 3+ /ΣFe in Earth's asthenospheric mantle since 3.8 Ga. Lithos. https://doi.org/10.1016/j.lithos.2017.03.020
AuthorsRollinson, Hugh, Adetunji, Jacob, Lenaz, Davide and Szilas, Kristoffer
Abstract

Theoretical and planetary studies show that the Earth’s upper mantle is more oxidised than it should be. The mechanism by which this took place and the timing of the oxidation is contested. Here we present new Mössbauer spectroscopy measurements of the ionic ratio Fe3+/(Fe3++Fe2+) in the mineral chromite hosted in mantle-derived melts to show that there is no change in mantle Fe3+/(Fe3++Fe2+) ratio before and after the oxidation of the Earth’s atmosphere at ca. 2.4 Ga and over Earth history from 3.8 Ga to 95 Ma. Our finding supports the view that the oxidation of the asthenospheric mantle was very early and that the oxygenation of the Earth’s atmosphere was not directly coupled to mantle processes.

KeywordsArchaean; Chromite; Mantle redox; Geology
Year2017
JournalLithos
PublisherElsevier
ISSN244937
Digital Object Identifier (DOI)https://doi.org/10.1016/j.lithos.2017.03.020
Web address (URL)http://hdl.handle.net/10545/621549
hdl:10545/621549
Publication dates29 Mar 2017
Publication process dates
Deposited13 Apr 2017, 14:56
Accepted23 Mar 2017
Rights

Archived with thanks to Lithos

ContributorsUniversity of Derby, University of Trieste and Geological Survey of Denmark and Greenland
File
File
File Access Level
Open
Permalink -

https://repository.derby.ac.uk/item/954yy/archaean-chromitites-show-constant-fe-3-fe-in-earth-s-asthenospheric-mantle-since-3-8-ga

Download files

  • 16
    total views
  • 4
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

The eastern French Pyrenees: from mountain belt to foreland basin
Satterfield, Dorothy, Rollinson, Hugh and Suthren, Roger 2019. The eastern French Pyrenees: from mountain belt to foreland basin. Geology Today. 35 (6), pp. 228-240. https://doi.org/10.1111/gto.12291
Ionic radii
Rollinson, Hugh and Adetunji, Jacob 2017. Ionic radii. in: Springer International Publishing.
Evidence for melting mud in Earth’s mantle from extreme oxygen isotope signatures in zircon.
Spencer, Christopher J., Cavosie, Aaron J., Raub, Timothy D., Rollinson, Hugh, Jeon, Heejin, Searle, Michael P., Miller, Jodie A., McDonald, Bradley J. and Evans, Noreen J. 2017. Evidence for melting mud in Earth’s mantle from extreme oxygen isotope signatures in zircon. Geology. https://doi.org/10.1130/G39402.1
Masirah – The other Oman ophiolite: A better analogue for mid-ocean ridge processes?
Rollinson, Hugh 2017. Masirah – The other Oman ophiolite: A better analogue for mid-ocean ridge processes? Geoscience Frontiers. https://doi.org/10.1016/j.gsf.2017.04.009
Highly refractory Archaean peridotite cumulates: Petrology and geochemistry of the Seqi Ultramafic Complex, SW Greenland
Szilas, Kristoffer, van Hinsberg, Vincent J., McDonald, Iain, Næraa, Tomas, Rollinson, Hugh, Adetunji, Jacob and Bird, Dennis 2017. Highly refractory Archaean peridotite cumulates: Petrology and geochemistry of the Seqi Ultramafic Complex, SW Greenland. Geoscience Frontiers. https://doi.org/10.1016/j.gsf.2017.05.003
Archaean crustal evolution in West Africa: A new synthesis of the Archaean geology in Sierra Leone, Liberia, Guinea and Ivory Coast
Rollinson, Hugh 2016. Archaean crustal evolution in West Africa: A new synthesis of the Archaean geology in Sierra Leone, Liberia, Guinea and Ivory Coast. Precambrian Research. https://doi.org/10.1016/j.precamres.2016.05.005
Surprises from the top of the mantle transition zone
Rollinson, Hugh 2016. Surprises from the top of the mantle transition zone. Geology Today. https://doi.org/10.1111/gto.12130
Trevorite: Ni-rich spinel formed by metasomatism and desulfurization processes at Bon Accord, South Africa?
O'Driscoll, Brian, Clay, Patricia L., Cawthorn, R. Grant, Lenaz, Davide, Adetunji, Jacob and Kronz, Andreas 2014. Trevorite: Ni-rich spinel formed by metasomatism and desulfurization processes at Bon Accord, South Africa? Mineralogical Magazine. https://doi.org/10.1180/minmag.2014.078.1.11
The geochemistry and oxidation state of podiform chromitites from the mantle section of the Oman ophiolite: A review
Rollinson, Hugh and Adetunji, Jacob 2015. The geochemistry and oxidation state of podiform chromitites from the mantle section of the Oman ophiolite: A review. Gondwana Research. https://doi.org/10.1016/j.gr.2013.07.013
Comment on ‘Podiform chromitites do form beneath mid-ocean ridges’ by Arai, S. and Miura, M.
Rollinson, Hugh and Adetunji, Jacob 2016. Comment on ‘Podiform chromitites do form beneath mid-ocean ridges’ by Arai, S. and Miura, M. Lithos. https://doi.org/10.1016/j.lithos.2015.10.023
UK pension changes in 2015: some mathematical considerations
Stubbs, John and Adetunji, Jacob 2016. UK pension changes in 2015: some mathematical considerations. The Mathematical Gazette. https://doi.org/10.1017/mag.2016.55
Explainer: what dust from the Sahara does to you and the planet
Adetunji, Jacob 2016. Explainer: what dust from the Sahara does to you and the planet. The Conversation.
Low temperature, authigenic illite and carbonates in a mixed dolomite-clastic lagoonal and pedogenic setting, Spanish Central System, Spain
Huggett, Jennifer, Cuadros, Javier, Gale, Andrew S., Wray, David and Adetunji, Jacob 2016. Low temperature, authigenic illite and carbonates in a mixed dolomite-clastic lagoonal and pedogenic setting, Spanish Central System, Spain. Applied Clay Science. https://doi.org/10.1016/j.clay.2016.06.016
57Fe Mössbauer spectroscopy investigations of iron oxidation states in the Harmattan dust nutrient contribution to West African soils
Adetunji, Jacob 2014. 57Fe Mössbauer spectroscopy investigations of iron oxidation states in the Harmattan dust nutrient contribution to West African soils. Atmospheric Environment. https://doi.org/10.1016/j.atmosenv.2014.09.025
Mineralogical and geochemical characterisation of warm-water, shallow-marine glaucony from the Tertiary of the London Basin
Huggett, Jennifer, Adetunji, Jacob, Longstaffe, Fred and Wray, David 2017. Mineralogical and geochemical characterisation of warm-water, shallow-marine glaucony from the Tertiary of the London Basin. Clay Minerals. https://doi.org/10.1180/claymin.2017.052.1.02
Chromite in the mantle section of the Oman Ophiolite: Implications for the tectonic evolution of the Oman Ophiolite
Rollinson, Hugh and Adetunji, Jacob 2015. Chromite in the mantle section of the Oman Ophiolite: Implications for the tectonic evolution of the Oman Ophiolite. Acta Geologica Sineca. https://doi.org/10.1111/1755-6724.12308_44
There were no large volumes of felsic continental crust in the early Earth
Rollinson, Hugh 2017. There were no large volumes of felsic continental crust in the early Earth. Geosphere. https://doi.org/10.1130/GES01437.1
Determination of Fe3+/ΣFe ratios in chrome spinels using a combined Mössbauer and single-crystal X-ray approach: application to chromitites from the mantle section of the Oman ophiolite
Lenaz, Davide, Adetunji, Jacob and Rollinson, Hugh 2014. Determination of Fe3+/ΣFe ratios in chrome spinels using a combined Mössbauer and single-crystal X-ray approach: application to chromitites from the mantle section of the Oman ophiolite. Contributions to Mineralogy and Petrology. https://doi.org/10.1007/s00410-013-0958-2