Ancient stable magnetism of the Richardton H5 chondrite

Details Ancient stable magnetism of the Richardton H5 chondrite Ancient stable magnetism of the Richardton H5 chondrite

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009pepi..177...12y&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 177, Issue 1-2, p. 12-18.

Physics

5

Scientific paper

Investigating mineral magnetic properties of meteorites is essential to understanding the formation and evolution of planetary bodies in the solar system. In order to decipher ancient magnetic records, demagnetization experiments were carried out for the ˜4550 Ma Richardton H5 chondrite. Alternating-field demagnetization revealed a soft fraction as well as a hard fraction. Conventional thermal demagnetization in air showed severe alterations. But, a few thermal demagnetizations in vacuum were successful in isolating a stable paleomagnetic record. On the basis of microscopic analysis, we found that fine-grained clinopyroxene-hosted kamacite is abundant, responsible for the stable and permanent magnetic record of Richardton. The experimental data imply a thermal or thermochemical origin for the stable paleomagnetic record of Richardton. However, the possibility of pressure (re)magnetization cannot be evaluated because the effect of pressure on magnetization for the Fe-Ni system is unknown.

Affiliated with

Also associated with

No associations

Rating

Ancient stable magnetism of the Richardton H5 chondrite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ancient stable magnetism of the Richardton H5 chondrite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ancient stable magnetism of the Richardton H5 chondrite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1724073