Does TRM Occur in Oceanic Layer 2 Basalts?

Abstract

It is shown that, as a consequence of rapid low temperature oxidation, the magnetization of at least the upper 600m of oceanic layer 2 almost everywhere, except immediately adjacent to ridge crests, must be regarded as being chemical remanent rather than thermoremanent in nature, while most magnetic properties are changed drastically as a result of this alteration process, it seems that initial TRM direction is unlikely to be altered by more than 10°, and then only when original magnetizing and dipole fields differ markedly in direction. Increased scatter in direction appears to be a more general consequence of CRM replacement of TRM.