Paleointensity of the Allende carbonaceous chondrite

Details Paleointensity of the Allende carbonaceous chondrite Paleointensity of the Allende carbonaceous chondrite

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983polre..30..403n&link_type=abstract

(National Institute of Polar Research, Symposium on Antarctic Meteorites, 8th, Tokyo, Japan, Feb. 17-19, 1983) National Institut

Computer Science

5

Carbonaceous Chondrites, Chondrule, Magnetization, Meteoritic Composition, Paleomagnetism, Iron, Nickel, Temperature Effects, Troilite

Scientific paper

The opaque magnetic constituents are re-examined for Allende chondrite specimens before their magnetic properties are measured. The main interest is concerned with natural remanent magnetization (NRM) and the most probable paleointensity of the Allende chondrite. The composition and structure of opaque minerals of both chondrules and matrix are examined in order to confirm the ferromagnetic (or ferrimagnetic) constituents in the Allende specimen. Results of Konigisberger-Thellier experiments of a number of bulk and matrix specimens and of a chondrule having stable NRM (assuming that NRM is partial thermoremanent magnetization acquired during cooling from about 320 degrees C in the presence of a magnetic field) lead to a conclusion that the paleointensity of the Allende chondrite is given by a magnetic field of 1-3 oersteds.

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