Meteorites and Magnetism

In early solar system history there are several electromagnetic processes expected that may be capable of magnetizing the primitive solid particles condensating from the Solar Nebula. The record of these magnetic events can be observed during laboratory studies of meteorites found on the Earth. Different terrestrial processes can affect the magneto mineralogy, can cause changes in magnetic parameters, and can overprint the primary magnetic record.

The effect of surface heating (when falling through the atmosphere) was the subject of the study with the Murchison meteorite.

Using the Allende meteorite we studied the effect of the shock pressure generated by the friction of the atmosphere during the meteorite fall.

Some of the meteorites are found several days after the fall, some of them are deposited in the desert or on the Antarctic ice for thousands of years. Most of them contain visible traces of terrestrial oxidation and weathering.

The project is a part of Tomas Kohout's Ph.D. thesis (graduate student at Department of Applied Geophysics, Faculty of Natural Sciences, Charles University, Prague, Czech Republic and graduate student at Division of Geophysics, Department of Physical Sciences, University of Helsinki, Helsinki, Finland) and is based on existing collaboration among following institutions:

	Division of Geophysics, Department of Physical Sciences, University of Helsinki, Helsinki, Finland
	Department of Applied Geophysics, Faculty of Science, Charles University, Prague, Czech Republic
	Paleomagnetic Laboratory, Institute of Geology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
	Laboratory for Extraterrestrial Physics, Astrochemistry Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

We are working on this project since 2001 and we are looking forward to enhance the range of our work and collaboration.

If you have any comments, questions or suggestions concerning our work or you want to receive the notification about the page update do not be hesitate to contact us!

Acknowledgements

This work is supported by Charles University Grant Agency - grant number 219/2002/B-GEO/PrF and would not be possible without the help of following people: Jakub Haloda, Petr Jakes, Marcela Bukovanska, Jaroslav Kadlec, Libuse Kohoutova, Vladimir Kohout.

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The effect of surface heating (when falling through the atmosphere) was the subject of the study with the Murchison meteorite.

Using the Allende meteorite we studied the effect of the shock pressure generated by the friction of the atmosphere during the meteorite fall.

Some of the meteorites are found several days after the fall, some of them are deposited in the desert or on the Antarctic ice for thousands of years. Most of them contain visible traces of terrestrial oxidation and weathering.

Division of Geophysics, Department of Physical Sciences, University of Helsinki, Helsinki, Finland

Department of Applied Geophysics, Faculty of Science, Charles University, Prague, Czech Republic

Paleomagnetic Laboratory, Institute of Geology, Academy of Sciences of the Czech Republic, Prague, Czech Republic

Laboratory for Extraterrestrial Physics, Astrochemistry Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

We are working on this project since 2001 and we are looking forward to enhance the range of our work and collaboration.

This work is supported by Charles University Grant Agency - grant number 219/2002/B-GEO/PrF and would not be possible without the help of following people: Jakub Haloda, Petr Jakes, Marcela Bukovanska, Jaroslav Kadlec, Libuse Kohoutova, Vladimir Kohout.