Magnetic meteorites and the early solar system

Bryson, James F. J. and Nimmo, Francis and Harrison, Richard J. (2015) Magnetic meteorites and the early solar system. Astronomy & Geophysics, 56 (4). 4.36-4.42. ISSN 1366-8781 ESSN: 1468-4004 DOI 10.1093/astrogeo/atv134

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Official URL: http://dx.doi.org/10.1093/astrogeo/atv134

Abstract

Today, the Earth generates a magnetic field through convection of the electrically conducting molten iron in its outer core. Core convection is governed by the thermal and chemical processes that operate deep within our planet; thus measurements of the intensity and direction of the magnetic field can provide insights into the thermochemical state of the Earth's interior. Crustal rocks can also record and preserve a memory of the field they experienced as they were forming. Paleomagnetic measurements can therefore provide records of ancient magnetic activity and, by extension, the internal conditions of our planet in the past (Tarduno et al. 2014). A combination of paleomagnetic and present-day magnetic measurements therefore allow us to study the long-term and large-scale evolution of our planet over billions of years; this method could also potentially allow us to predict how it may behave in the future.

Item Type: Article
Additional Information: Copyright © 2016 The Royal Astronomical Society
Uncontrolled Keywords: 2015AREP; IA69; weekly list
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
08 - Green Open Access
Journal or Publication Title: Astronomy & Geophysics
Volume: 56
Page Range: 4.36-4.42
Identification Number: 10.1093/astrogeo/atv134
Depositing User: Sarah Humbert
Date Deposited: 17 Jan 2016 22:44
Last Modified: 17 Jan 2016 22:44
URI: http://eprints.esc.cam.ac.uk/id/eprint/3550

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