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Die Stillstandslagen des letzten Inlandeises und die hydrographische Entwickelung des pommerschen Küstengebietes. K. Keilhack

1899 The Journal of geology  
REVIEWS 5. White limestones of probable Pliocene age, composing the hills of the south coast. 6. Elevated reefs, but feebly represented. 7. Alluvial plains of Pleistocene age. The terrace phenomena are less developed upon this island than in any of the other Great Antilles, although the Pleistocene base leveling is well developed in stream valley phenomena. Dikes of syenitic-like porphyry, probably diorites, were also noted cutting the older hornblendic rocks. Evidence was obtained indicating
more » ... tained indicating that the great mountain movement culminated before the Miocene, and that there has been at least one thousand feet of vertical uplift since that epoch. The recent work in Cuba consists of a section across the Sierra Maestra from the coast to the Rio Cauto. In making the section, Mr. Hill was convinced "that the crystalline rocks of that region are Cretaceous and post-Eocene Tertiary, and not Paleozoic, as asserted by Frazer. .. ." R. D. S. Die Stillstandslagen des letzten Inlandeises und die hydrographische Entwickelung des pommerscken Kiistengebietes. By DR. K. KEILHACK. Separatabdruck aus dem Jahrbuch der k6nigl. preuss. geologischen Landesanstalt fuir 1898. Berlin. Pp. 90-152, 14 plates. The immediate object of this paper is to set forth the relations between the edge of the ice and the drainage of north Germany during the last glacial epoch. The general slope of south Germany is northward, and the general slope of the ice which lay over north Germany was southward. Along the meeting of these opposing slopes, water courses were developed while the ice was in existence. Locally these marginal water courses were lakes, but often there was a river current along them. Many of the peculiarities of topography and drainage date from the time of ice occupancy. Incidentally, several points of general interest are developed. Dr. Keilhack recognizes three distinct glacial epochs. During the last he recognizes five more or less distinct stages of the ice, one standing for the maximum advance of this epoch, and the others recessional stages. Each of these stages had its marginal water course. During its maximum stage the limit of the ice in this epoch was just north of the Malapane and Oder rivers, as far west as the northward 824
doi:10.1086/608541 fatcat:7gj334m7iba2dp2jl4nndtvkme