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CONSTRAINTS ON MAGNETIC FIELD WHICH MAGNETIZED THE FARMINGTON METEORITE PARENT BODY
Author(s) -
Rowea M. W.
Publication year - 1975
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1975.tb00004.x
Subject(s) - meteorite , magnetization , parent body , shock (circulatory) , chondrite , geology , magnetic field , materials science , astrobiology , physics , medicine , quantum mechanics
The parent body of the Farmington meteorite experienced sufficient heating, probably from shock accompanying a major collision occurring at 520 × 10 6 years ago, to erase the record of any magnetization acquired prior to that event. Therefore, the observed magnetization in the Farmington meteorite must have been acquired after the collision. Shock‐produced magnetization is unlikely because of the finite cooling time indicated by the burial depth of ≥ several meters. The possibility of shock or irradiation‐produced magnetizations should be studied experimentally, even though neither appears likely to have produced the magnetic field which produced the magnetization in the parent body of the Farmington meteorite .