Paleomagnetism of ~4551 Ma old Richardton chondrite

Details Paleomagnetism of ~4551 Ma old Richardton chondrite Paleomagnetism of ~4551 Ma old Richardton chondrite

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmgp21b0502y&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #GP21B-0502

Mathematics

Logic

1500 Geomagnetism And Paleomagnetism, 1519 Magnetic Mineralogy And Petrology, 1540 Rock And Mineral Magnetism, 6200 Planetary Sciences: Solar System Objects, 6240 Meteorites And Tektites (1028, 3662)

Scientific paper

Magnetic and mineralogic variation of the Chondrites provides important information about the early evolution of the solar system and the formation of planetary objects. In the present study, we used several chips of Richardton (~4551 Ma). On the basis of rock magnetic, microscopic, and electron microprobe analyses on rock chips and mineral separates, we suggest that silicate-hosted Fe-Ni is responsible for the stable paleomagnetic record of Richardton. Small amounts of accessory opaque minerals including Cr-spinel, Fe-Ni- oxide, and Fe-sulfide are confined along the cracks between silicates, reflecting their secondary shock-origin and their little contribution to the stable remanence.

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