Stable NRM and mineralogy in Allende - ChondrulesThe main objective of the present investigation is related to a description of the magnetic and mineralogic contrasts between chondrules which have a natural remanent magnetization (NRM) vector that is ultrastable during alternating field (AF) demagnetization, and those which have unstable NRM vectors when subjected to the same treatment. The results presented in the present investigation together with new magnetic results from Allende listed in a summary provided by Wasilewski (1981) are used as a basis to argue that the stable NRM in Allende was acquired during a sulfidation event. Attention is given to magnetic phases in Allende, experimental results obtained in magnetic studies conducted with 20 chondrules, and a magnetization model for Allende.
Document ID
19820048224
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wasilewski, P. J. (NASA Goddard Space Flight Center Astrochemistry Branch, Greenbelt, MD, United States)
Saralker, C. (Computer Sciences Corp. Silver Spring, MD, United States)