Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998geoji.132..721n&link_type=abstract
Geophysical Journal International, Volume 132, Issue 3, pp. 721-724.
Astronomy and Astrophysics
Astronomy
3
High-Temperature Squid, Remanent Magnetization
Scientific paper
A newly developed field distribution measuring system based on a high-Tc SQUID has been employed in the study of magnetic mineral distribution in several Permian sedimentary rocks. The instrument consists of a small, 1.4×1.4mm sized YBaCu-oxide SQUID magnetic field sensor that is operated in a thin-walled dewar, so that the sample's surface, at room temperature, can be scanned at a distance of only ~1.5mm. The samples were subjected to a saturation remanence perpendicular to the surface and the scanning measurements in zero field reveal that the magnetization might be carried by only a small part of a sample, in one case associated with secondary oxide phases. High-resolution magnetic scans can aid in the interpretation of the magnetic remanence acquisition process.
Hinken Johann
Knecht Andrea
Nowaczyk Norbert
Worm Horst-Ulrich
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