Magnetic Field Signatures of Craters on Mars

Magnetic Field Signatures of Craters on Mars Mittelholz, A; Steele, SC; Fu, RR; Johnson, CL; Lillis, RJ; Stucky de Quay, G Craters on Mars are a window into Mars' past and the time they were emplaced. Because the crust is heated and shocked during impact, craters can demagnetize or magnetize the crust depending on the presence or absence of a dynamo field at the time of impact. This concept has been used to constrain dynamo timing. Here, we investigate magnetic anomalies associated with craters