Preliminary results of magnetic mineralogy investigations of Upper Jurassic and Lower Cretaceous sediments from Nutzhof, Austria

0312204 - GLÚ 2009 AT eng A - Abstrakt
Schnabl, Petr - Lukeneder, A. - Pruner, Petr
Preliminary results of magnetic mineralogy investigations of Upper Jurassic and Lower Cretaceous sediments from Nutzhof, Austria.
[Předběžné výsledky magnetomineralogického výzkumu svrchně jurských a spodnokřídových sedimentů v Nutzhofu, Rakousko.]
Berichte der Geologischen Bundesanstalt. Roč. 74, - (2008), s. 98-99. ISSN 1017-8880.
[International Meeting on Correlation of Cretaceous Micro- and Macrofossils /1./. 16.04.2008-18.04.2008, Vienna]
Grant CEP: GA ČR GA205/07/1365
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: magnetomineralogy * Jurassic/Cretraceous boundary * Nutzhof (Austria)
Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie
http://www.geologie.ac.at/filestore/download/BR0074_098_A.pdf

Isothermal remanent magnetization (IRM) to saturation was measured to identify coercivity spectra. Magnetite can be found in all limestone layers on the Nutzhof J/K boundary. Due to its extremely high magnetic susceptibility (MS) and natural remanent magnetisation (NRM) is the most important magnetic mineral on the profile. Its’ Curie point is at 470°C, which means that there is high titanium content in the magnetite lattice. Magnetite has detrital origin and it contain primary NRM component.
Trvalý link: http://hdl.handle.net/11104/0163332