0311973 - GLÚ 2009 DK eng A - Abstrakt
Kohout, Tomáš - Deutsch, A. - Pesonen, L. J. - Hornemann, U. - Heikinheimo, E.
Shock recovery experiments with artificially made magnetite pellets in the range of 10 to 45 GPa.
[Šokové experimenty s uměle připraveným magnetitem v rozsahu 10 až 40 GPa.]
28th Nordic Geological Winter Meeting : abstract volume. Aalborg: Aalborg University, 2008 - (Wahl, N.). s. 125-125
[Nordic Geological Winter Meeting /28./. 07.01.2008-10.01.2008, Aalborg]
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: shock experiments * magnetite * shock magnetism
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

We report results of shock experiments with synthetic finegrained magnetite of SD (Single Domain) to PSD (Pseudo-Single Domain) magnetic behavior. The shock induced changes in sample properties show with increasing shock pressure: Decrease in magnetic susceptibility, ARM, SIRM, Softening of the magnetic hysteresis parameters, Progressive shock demagnetization of the pre-shock given remanence, Reduction in bulk density and significant increase of porosity. The exception is the 45 GPa sample showing mostly out-of-the-trend change in its properties probably related to shock induced changes in mineralogy or to contamination of the sample by melted steel from the container.
Trvalý link: http://hdl.handle.net/11104/0004732