منابع مشابه
Meteorite Impacts, Craters and Multi-ring Basins
One of the principal new results of space exploration has been the demonstration that impact cratering was endemic throughout the solar system. Whether one is contemplating the cratered face of Mercury, the traces of the bombardment surviving on Venus or the Earth, the heavily cratered highland surface of the Moon or the southern hemisphere of Mars, the battered potato-like surfaces of Phobos a...
متن کاملThe Search for Possible Source Craters for Martian Meteorite Alh84001
ALH84001 is the only martian meteorite currently known with a crystallization age of 4.5 Ga. This ancient age indicates the meteorite must come from the ancient crust of Mars, located primarily in the southern hemisphere of the planet. The 4.56 Ga crystallization age, the 16 Ma ejection, and theoretical models of how material is ejected off Mars were used to identify possible source craters for...
متن کاملThe formation, morphology, and economic potential of meteorite impact craters
One quarter of the known terrestrial impact craters are associated with economic deposits of some kind whether they are mineral ores, hydrocarbons or even evaporite minerals and fresh water. Detection of new structures is hindered by the apparent randomness of impact, terrestrial erosional processes, non-systematic search efforts, and that 30% of craters are buried. The vast expanse of the Eart...
متن کاملLaboratory Modeling of Meteorite Impact Craters by Z-pinch Plasma
Desai, et al. [1] simulated microparticle lunar impact craters using laser impacts. They produced crater diameters of several hundred μm in Al. Ford [2] made observations about lunar craters simulated by spark-machining on metal. These were also very small scale craters. This work expands the size of simulated impact craters from their sub-millimeter craters to craters over a centimeter and exp...
متن کاملAfrican meteorite impact craters: characteristics and geological importance
Abslzact Geologists have realized that impact cratering is the single most important surface-forming and modifying process for the other terrestrial planets and the satellites of all planets. The recognition of impact cratering as an important geological process on earth has been rather slow. However, geologists are now realizing that giant impacts have had a determining influence on the geolog...
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ژورنال
عنوان ژورنال: Smithsonian Contributions to Astrophysics
سال: 1965
ISSN: 0081-0231
DOI: 10.5479/si.00810231.8-8.199