Extraterrestrial materials in space are subjected to shocks and particle radiation by cosmic rays. We present here the results of experimental investigations of hydrostatic pressure, shock and particle irradiation (by protons, argon and lead ions) effects on the magnetic properties of extraterrestrial materials — meteorites and lunar samples — and their terrestrial analogs. We also justify via numerical modeling a possibility and present a physical mechanism of shock-induced and irradiation-induced self–reversal of magnetization of ferrimagnets, which represent the major carrier of rock and meteorite magnetic properties.
96.30.Za Meteors, meteorites and tektites
$^1$Earth Physics Department, Faculty of Physics, M.V.Lomonosov Moscow State University, Moscow 119991, Russia
$^2$Institute of Geology and Petroleum Technologies, Kazan Federal University, 4/5 Kremlyovskaya Str., 420008, Kazan, Russia
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