Earth's core conductivities for pure iron and iron mixtures in the liquid outer core and solid inner core (NERC Grant NE/H02462X/1)
This dataset contains VASP runs performed on ARCHER to calculate the electrical and thermal conductivities of pure iron and iron alloys at Earth's core conditions using density functional theory with the Kubo-Greenwood formulation. Data are available for both the solid and the liquid phase characterising the inner and outer core respectively. Also included in the dataset the runs for computing the lattice contribution to the electrical resistivity of magnetic bcc iron at ambient pressure and two low temperatures and for computing the melting curve of fcc nickel. These data were also used for the modelling of the geodynamo and the thermal history of the Earth, to calculate the transport properties for silicon-oxygen-iron mixtures and to confirm the saturation of electrical resistivity of solid iron at Earth’s core conditions. The results from this dataset showed that both conductivities are much larger than previously thought with important implications for the geodynamo and the thermal history of the Earth, benefitting the geodynamo community. The results of our research have been recently confirmed by new experimental results obtained at Earth's core conditions. Further details can be found in Alfè et al. (2012); Pozzo et al. (2012, 2013a, 2013b, 2014, 2016); Gubbins et al. (2015); Davies et al. (2015). NERC Grant is NE/H02462X/1.
nonGeographicDataset
http://dx.doi.org/10.1016/j.epsl.2014.02.047
function: information
https://dx.doi.org/10.1186%2Fs40064-016-1829-x
function: information
http://data.bgs.ac.uk/id/dataHolding/13607037
eng
geoscientificInformation
publication
2008-06-01
NGDC Deposited Data
Saturation
Thermal conductivity
Conductivity
Resistivity
Earth core
revision
2022
NERC_DDC
2014-11
creation
2014-11
notApplicable
Input files for the VASP runs on ARCHER were prepared locally. VASP runs were performed on ARCHER and then securely copied locally for the final processing and the creation of figures for publication in several peer-reviewed international journals.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Earth Sciences
University College London
Kathleen Lonsdale Building, Gower Street
London
WWC1E 6BT
pointOfContact
Earth Sciences
University College London
Kathleen Lonsdale Building, Gower Street
London
WC1E 6BT
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100
pointOfContact
2025-03-10