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  • Spectrophotometry, Infrared  (2)
  • 1
    Publikationsdatum: 2003-08-23
    Beschreibung: Thermal infrared spectra of the martian surface indicate the presence of small concentrations (approximately 2 to 5 weight %) of carbonates, specifically dominated by magnesite (MgCO3). The carbonates are widely distributed in the martian dust, and there is no indication of a concentrated source. The presence of small concentrations of carbonate minerals in the surface dust and in martian meteorites can sequester several bars of atmospheric carbon dioxide and may have been an important sink for a thicker carbon dioxide atmosphere in the martian past.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bandfield, Joshua L -- Glotch, Timothy D -- Christensen, Philip R -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1084-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geological Sciences, Arizona State University, Tempe, AZ 85287-6305, USA. joshband@asu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12934004" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Atmosphere ; Atmospheric Pressure ; Carbon Dioxide ; Carbonates/*analysis ; Extraterrestrial Environment ; Geologic Sediments ; Magnesium/*analysis ; *Mars ; Meteoroids ; Minerals/*analysis ; Particle Size ; Silicates/analysis ; Spectrophotometry, Infrared ; Water
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2010-10-23
    Beschreibung: Diviner Lunar Radiometer Experiment surface-temperature maps reveal the existence of widespread surface and near-surface cryogenic regions that extend beyond the boundaries of persistent shadow. The Lunar Crater Observation and Sensing Satellite (LCROSS) struck one of the coldest of these regions, where subsurface temperatures are estimated to be 38 kelvin. Large areas of the lunar polar regions are currently cold enough to cold-trap water ice as well as a range of both more volatile and less volatile species. The diverse mixture of water and high-volatility compounds detected in the LCROSS ejecta plume is strong evidence for the impact delivery and cold-trapping of volatiles derived from primitive outer solar system bodies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paige, David A -- Siegler, Matthew A -- Zhang, Jo Ann -- Hayne, Paul O -- Foote, Emily J -- Bennett, Kristen A -- Vasavada, Ashwin R -- Greenhagen, Benjamin T -- Schofield, John T -- McCleese, Daniel J -- Foote, Marc C -- DeJong, Eric -- Bills, Bruce G -- Hartford, Wayne -- Murray, Bruce C -- Allen, Carlton C -- Snook, Kelly -- Soderblom, Laurence A -- Calcutt, Simon -- Taylor, Fredric W -- Bowles, Neil E -- Bandfield, Joshua L -- Elphic, Richard -- Ghent, Rebecca -- Glotch, Timothy D -- Wyatt, Michael B -- Lucey, Paul G -- New York, N.Y. -- Science. 2010 Oct 22;330(6003):479-82. doi: 10.1126/science.1187726.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Space Sciences, University of California, Los Angeles, 595 Charles E. Young Drive East, Los Angeles, CA 90095, USA. dap@moon.ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20966246" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cold Temperature ; Extraterrestrial Environment ; Ice ; *Moon ; Radiometry ; Spectrophotometry, Infrared
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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