Premium
Impact demagnetization of the Martian crust: Primaries versus secondaries
Author(s) -
Artemieva N.,
Hood L.,
Ivanov B. A.
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl024385
Subject(s) - crust , martian , remanence , geology , geophysics , demagnetizing field , astrobiology , mars exploration program , magnetic field , magnetization , physics , quantum mechanics
Numerical simulations presented here show that demagnetization of crust near the largest Martian basins by secondary impacts can be comparable to that by direct shock waves outside the transient cavity. The relative input from secondary impacts, which demagnetize only the uppermost layers, depends on the magnetic carrier distribution within the crust. Thus, we discuss properties of likely magnetic remanence carriers and their possible spatial distribution within the crust.