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Mars Crustal Magnetism

Connerney, J.E.P. and Acuna, M.H. and Ness, N.F. and Spohn, T. and Schubert, G. (2004) Mars Crustal Magnetism. Space Science Reviews, 111 (1), pp. 1-32. Kluwer. doi: 10.1023/B:SPAC.0000032719.40094.1d.

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Mars lacks a detectable magnetic field of global scale, but boasts a rich spectrum of magnetic fields at smaller spatial scales attributed to the spatial variation of remanent magnetism in the crust. On average the Mars crust is 10 times more intensely magnetized than that of the Earth. It appears likely that the Mars crust acquired its remanence in the first few hundred million years of evolution when an active dynamo sustained an intense global field. An early dynamo era, ending in the Noachian, or earliest period of Mars chronology, would likely be driven by thermal convection in an early, hot, fluid core. If crustal remanence was acquired later in Mars history, a dynamo driven by chemical convection associated with the solidification of an inner core is likely. Thermal evolution models cannot yet distinguish between these two possibilities. The magnetic record contains a wealth of information on the thermal evolution of Mars and the Mars dynamo, but we have just begun to decipher its message.

Item URL in elib:https://elib.dlr.de/10976/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Mars Crustal Magnetism
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Connerney, J.E.P.NASA Goddard Space Flight Center, Greenbelt, MD, USAUNSPECIFIEDUNSPECIFIED
Acuna, M.H.NASA Goddard Space Flight Center, Greenbelt, MD, USAUNSPECIFIEDUNSPECIFIED
Ness, N.F.University of Delaware, Wilmington, DE, USAUNSPECIFIEDUNSPECIFIED
Schubert, G.University of California, Los Angeles, CA, USAUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-32
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 16:36

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