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Mars’ core and magnetism

Stevenson, David J. (2001) Mars’ core and magnetism. Nature, 412 (6843). pp. 214-219. ISSN 0028-0836.

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The detection of strongly magnetized ancient crust on Mars is one of the most surprising outcomes of recent Mars exploration, and provides important insight about the history and nature of the martian core. The iron-rich core probably formed during the hot accretion of Mars ~4.5 billion years ago and subsequently cooled at a rate dictated by the overlying mantle. A core dynamo operated much like Earth’s current dynamo, but was probably limited in duration to several hundred million years. The early demise of the dynamo could have arisen through a change in the cooling rate of the mantle, or even a switch in convective style that led to mantle heating. Presently, Mars probably has a liquid, conductive outer core and might have a solid inner core like Earth.

Item Type:Article
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Stevenson, David J.0000-0001-9432-7159
Additional Information:© 2001 Macmillan Magazines Ltd.
Issue or Number:6843
Record Number:CaltechAUTHORS:20130626-090417493
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Official Citation:Stevenson, D. J. (2001). "Mars' core and magnetism." Nature 412(6843): 214-219.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39099
Deposited By: Tony Diaz
Deposited On:26 Jun 2013 19:42
Last Modified:03 Oct 2019 05:03

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