Mineralogical alteration of artificial meteorites during atmospheric entry. The STONE-5 experiment
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چکیده
منابع مشابه
Testing the survival of microfossils in artificial martian sedimentary meteorites during entry into Earth’s atmosphere: The STONE 6 experiment
If life ever appeared on Mars, could we find traces of primitive life embedded in sedimentary meteorites? To answer this question, a 3.5-byr-old volcanic sediment containing microfossils was embedded in the heat shield of a space capsule in order to test survival of the rock and the microfossils during entry into the Earth’s atmosphere (the STONE 6 experiment). The silicified volcanic sediment ...
متن کاملStone 6: Artificial Sedimentary Meteorites in Space
stetter, H.G.M. Edwards, C.S. Cockell, J. Parnell, J. Pillinger, S. Sancisi-Frey, I. Franchi,, G. Kurat, A. Brack. 1 Centre de Biophysique Molécualire-CNRS and Université d’Orléans, 45071 Orléans cedex 2, France ([email protected]). 2 European Space & Technology Centre (ESTEC), Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The Netherlands. Naturhistorisches Museum, Burgring 7, 1010 Wien. ...
متن کاملResearches on the Chemical and Mineralogical Composition of Meteorites.
tected, as it were, from another crossing over. This relation is illustrated in the diagram (fig. 7). If crossing over occurs at some point between two pairs of factors a and b indicated on the diagram, the next crossing over point of the chromosome would, if it occurred at all, lie at some distance away, rather than near by. This possibility can be tested in a case where several known points a...
متن کاملMineralogical Evolution of Meteorites FRAGMENTS FROM THE BEGINNING
As Earth evolved over the last 4.5 billion years, its mineralogy changed. As we peer back through Earth’s history, it seems logical to think that our lens would grow increasingly fogged and our light ever more dim. How do we see beyond the oldest preserved rocks and minerals, after billions of years of volcanism, plate tectonics, and weathering? How do we see past the Moon-forming collision, wh...
متن کاملthe effect of e-64 on the developmental competence of sheep cocs during in vitro maturation
in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.
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ژورنال
عنوان ژورنال: Planetary and Space Science
سال: 2008
ISSN: 0032-0633
DOI: 10.1016/j.pss.2007.12.014