The New Encyclopaedia Britannica, Volume 8 |
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Page 67
... meteorite craters . An astrobleme is simply the scar of an impact crater - i.e . , any part of the structure that has survived erosion . Older impact structures may completely lack dis- cernible crater rims , but they still retain some ...
... meteorite craters . An astrobleme is simply the scar of an impact crater - i.e . , any part of the structure that has survived erosion . Older impact structures may completely lack dis- cernible crater rims , but they still retain some ...
Page 68
... ( meteorite ) and ejects steadily increasing amounts to begin the excavation stage . Ejec- tion and crater growth is a continuous , orderly process involving a steady flow of materi- als along shear lines . Cratering ceases when stresses ...
... ( meteorite ) and ejects steadily increasing amounts to begin the excavation stage . Ejec- tion and crater growth is a continuous , orderly process involving a steady flow of materi- als along shear lines . Cratering ceases when stresses ...
Page 996
... meteorite , object involved in the controversy about whether the organic mat- ter in meteorites is evidence of ... meteorite contained hydrogen , carbon , and oxygen and that its substance resembled peat and lignite , which are produced ...
... meteorite , object involved in the controversy about whether the organic mat- ter in meteorites is evidence of ... meteorite contained hydrogen , carbon , and oxygen and that its substance resembled peat and lignite , which are produced ...
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