Thermomagnetic analysis of meterorites. 4: Ureilites

Details Thermomagnetic analysis of meterorites. 4: Ureilites Thermomagnetic analysis of meterorites. 4: Ureilites

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974stin...7514666r&link_type=abstract

Unknown

Computer Science

Magnetite, Thermomagnetic Effects, Ureilites, Iron, Magnetization, Nickel

Scientific paper

Samples of all available ureilites have been analyzed thermomagnetically. For three of the six (Dyalpur, Goalpara and Havero) evidence was found for only low-nickel metallic-iron as the magnetic component and the (saturation magnetization vs, temperature) curves were reversible. In the Novo Urei ureilite, magnetite in addition to low-nickel metallic-iron was indicated and again the Js-T curve was reversible. For the two badly weathered ureilites, Dingo Pup Donga and North Haig, indication was also found that both initial magnetite and low-nickel metallic-iron were present. However, the Js-T curves were somewhat irreversible and the final saturation magnetization was 20% and 50% greater than initially for North Haig and Dingo Pup Donga, respectively. This behavior is interpreted to be the result of magnetite production from a secondary iron oxide during the experiment.

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