منابع مشابه
The spokane flood controversy and the martian outflow channels.
In a series of papers published between 1923 and 1932, J Harlen Bretz described an enormous plexus of proglacial stream channels eroded into the loess and basalt of the Columbia Plateau, eastern Washington. He argued that this region which he called the Channeled Scabland, was the product of a cataclysmic flood, which he called the Spokane flood. Considering the nature and vehemence of the oppo...
متن کاملMud Volcanoes of Trinidad as Astrobiological Analogs for Martian Environments
Eleven onshore mud volcanoes in the southern region of Trinidad have been studied as analog habitats for possible microbial life on Mars. The profiles of the 11 mud volcanoes are presented in terms of their physical, chemical, mineralogical, and soil properties. The mud volcanoes sampled all emitted methane gas consistently at 3% volume. The average pH for the mud volcanic soil was 7.98. The av...
متن کاملRelief Inversion: Australian Analogs of a Common Feature of Martian
Introduction: Relief inversion explains a wide range of sinuous and dendritic ridges on the martian surface as well as elevated craters [1]. The process occurs when former depressions become elevated because their fill is more resistant to erosion than the surrounding terrain. On Mars the most likely cementing agents for surface induration are iron oxides, opalline silica, sulfates and perhaps ...
متن کاملAntarctic Mars Analogs and Interpretation of Martian Alteration
SIGNATURES. A. C. McAdam 1 , T. G. Sharp 2 , L. A. Leshin 3 , R. P. Harvey 4 , E. J. Hoffman 5 , 1 Atmospheric Experiments Laboratory, Code 699, Goddard Space Flight Center, Greenbelt, MD 20771, [email protected], 2 School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ 85287-1404, 3 Goddard Space Flight Center, Greenbelt, MD 20771, 4 Dept. of Geological Scie...
متن کاملWater Sorption on Martian Regolith Analogs: Near-infrared Reflectance
Introduction: Due to large variations of both surface temperature and amount of water vapor in the atmosphere, relative humidity at the Martian surface is subject to variations of several orders of magnitude. As a result, minerals of the regolith that are in direct contact with the atmosphere are susceptible to adsorb and desorb water over diurnal and seasonal cycles [1,2,3]. Near-infrared refl...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2004
ISSN: 1525-2027
DOI: 10.1029/2004gc000758