Other
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja....10454b&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #10454
Other
Scientific paper
The absolute dating of Martian sediments is a primary goal for the future exploration of the planet. The crater counting method to date planetary surfaces is relative and is unreliable for surficial sediments. The LUMACH (LUminescence MArs CHronology) instrument for in situ analysis will be able to obtain for the first time the absolute dating of sedimentary deposits on Mars. LUMACH is based on the Optical Stimulated Luminescence technique (OSL) and generally an age of about 1 Myr could be measured using this technique in laboratories on Earth. The small dimensions and power demand of the instrument, the low data rate and the achievable results make LUMACH a suitable instrument for Martian in situ exploration. In particular, if associated with a drill sampling, important information about the variation of exposure time of different layers of sediments along a vertical profile can be obtained. This will provide a better determination of the time scale of surface processes and, along with other instruments, will help in defining the evolutional history of the Martian surface.
Baliva Antonio
Butera Francesco
Mazzoni Alberto
Mitri Giuseppe
Pompei Carlo
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