 | Royal Society of Edinburgh - 1895 - 692 페이지
...formed ?" Lyell thought that " river erosion" will account for most of the phenomena, but added, " I should infer considerable oscillations in the level of the land in that part of France." Murchison took up the same position, but claimed for the phenomena the action of much stronger and... | |
 | Smithsonian Institution. Board of Regents - 1863 - 466 페이지
...in reference to the secular phenomena indicated by the fluviatile gravel of Abbeville and Amiens : " To explain these changes, I should infer considerable...but not wholly displacing, the course of the ancient river. Lastly, the disappearance of the elephant, rhinoeerus, and other genera of quadrupeds now foreign... | |
 | Richard Owen - 2003 - 472 페이지
...portions having been swept away, so that what remains of it often terminates abruptly in old river cliffs, besides being covered by a newer unstratified drift....deranging but not wholly displacing the course of ancient rivers. Lastly, the disappearance of the elephant, rhinoceros, and other genera of quadrupeds,... | |
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Somme, for the deposition of fine sediment, including entire shells, both terrestrial and aquatic, and also for the denudation which the entire mass of stratified drift has undergone : portions having been swept away, so that what remains of it often... 
