Insights From MGS Magnetic Field, Geologic, and Topographic Observations and Implications for Global and Regional Evolution of Mars

Details Insights From MGS Magnetic Field, Geologic, and Topographic Observations and Implications for Global and Regional Evolution of Mars Insights From MGS Magnetic Field, Geologic, and Topographic Observations and Implications for Global and Regional Evolution of Mars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.p31c0159m&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #P31C-0159

Mathematics

Logic

5440 Magnetic Fields And Magnetism, 5455 Origin And Evolution, 5475 Tectonics (8149), 5480 Volcanism (6063, 8148, 8450), 6225 Mars

Scientific paper

We test whether the magnetic signature of the crust in the southern hemisphere is consistent with that due to an ancient dipolar field, or if subsequent local to regional scale modification has destroyed such a signal. We examine MGS magnetic data in the southern hemisphere, excluding large regions - the Tharsis complex, and the Hellas and Argyre impact basins - clearly affected by thermal and magmatic modification that has occurred since crustal formation. The observed distribution of magnetic field values is compared with the distribution expected for a dipolar field. The variations of the magnetic field with topography and geologic age are investigated. Geologic age data provide constraints on the timing of events that may have magnetized or subsequently modified the crust. Topographic data provide information related to processes that affect topography, such as uplifting. Analyses of the combined magnetic field, geologic age, and topographic data, will help to constrain regional and global models of Martian evolution.

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