Title: Impact demagnetization of the Martian crust: Primaries versus secondaries

Author(s): Artemieva N, Hood L, Ivanov BA

Source: GEOPHYSICAL RESEARCH LETTERS 32 (22): Art. No. L22204 NOV 30 2005

Document Type: Article

Language: English

Abstract: 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.

KeyWords Plus: MARS; MAGNETIZATION; METEORITES; EARTH

Addresses: Artemieva N (reprint author), Inst Dynam Geospheres, Leninsky Prospect 38,Bldg 1, Moscow, 119334 Russia
Inst Dynam Geospheres, Moscow, 119334 Russia
Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

E-mail Addresses: artemeva@psi.edu, lhood@lpl.arizona.edu, ivanov@idg.chph.ras.ru

Publisher: AMER GEOPHYSICAL UNION, 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA

Subject Category: GEOSCIENCES, MULTIDISCIPLINARY

IDS Number: 993EG