The New Encyclopaedia Britannica, Part 3, Volume 12Encyclopaedia Britannica, 1980 - Encyclopedias and dictionaries |
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Page 48
... origin ( see further TEKTITE ) . The masses of nearly pure silica glass found on the surface in the eastern desert of Libya , near the Egyptian frontier , have also been sup- posed to be of meteoritic origin , but this is highly improb ...
... origin ( see further TEKTITE ) . The masses of nearly pure silica glass found on the surface in the eastern desert of Libya , near the Egyptian frontier , have also been sup- posed to be of meteoritic origin , but this is highly improb ...
Page 54
... origin of each lunar crater must rest on direct examination . If shocked rocks are collected in situ at a crater , its impact origin is substanti- ated . Shocked ejecta fragments should be prevalent over most of the lunar debris surface ...
... origin of each lunar crater must rest on direct examination . If shocked rocks are collected in situ at a crater , its impact origin is substanti- ated . Shocked ejecta fragments should be prevalent over most of the lunar debris surface ...
Page 429
... origin of the craters have been much influenced by Baldwin's statistical work . He showed that the ratio of the depth to the diameter of terrestrial shell , bomb , and meteoritic craters and of the craters of the Moon could all be ...
... origin of the craters have been much influenced by Baldwin's statistical work . He showed that the ratio of the depth to the diameter of terrestrial shell , bomb , and meteoritic craters and of the craters of the Moon could all be ...
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19th century agricultural American animals atoms beam body carbon carbonaceous chondrites centimetres central centre century chemical chondrites church colour common court crater crystal cultural deposits Descartes early Earth economic electron Europe example existence experience facies France Gulf impact craters important Indian industrial iron islands kilometres known labour Lake land lens lenses major material ment mental metamorphic metamorphic rocks metaphysics meteor meteorite meteoroids methods metres Mexican Mexico Mexico City Mi Fei mica Michelangelo microclimate microscope migration military Milton mimicry mind minerals mining minority group miracles Mississippi Mithra modern dance Moldavia molecular molecules Molière movement nature objects occur olivine organisms pattern percent philosopher physical plagioclase political population pressure produced radiation region result river rock Roman social society South species structure surface temperature theory tion trans ture types United Veracruz