The Journal of Geology, Volumen13Thomas Chrowder Chamberlin University of Chicago Press, 1905 Vols. for 1893-1923 includes section: "Reviews." |
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Página 195
... Walden Ridge ; and then bends southward again in a longitudinal valley similar to ⚫ the one it occupied before entering the gorge . Both of the longi- tudinal valleys are opened on anticlines of easily eroded limestone , while the ...
... Walden Ridge ; and then bends southward again in a longitudinal valley similar to ⚫ the one it occupied before entering the gorge . Both of the longi- tudinal valleys are opened on anticlines of easily eroded limestone , while the ...
Página 198
... Walden Ridge Crotec Paneplain Tertiary Paneris white dak Mountain FIG . 2. Supposed former course of Tennessee ( as Appalachian ) . the Tertiary peneplain well elevated and to allow the streams to cut their valleys some distance below ...
... Walden Ridge Crotec Paneplain Tertiary Paneris white dak Mountain FIG . 2. Supposed former course of Tennessee ( as Appalachian ) . the Tertiary peneplain well elevated and to allow the streams to cut their valleys some distance below ...
Página 199
... Walden Rikys ~ Sand Mountair White Oak Mountai FIG . 3. - Present course of Tennessee River . Walden Ridge , a parallel , southward - flowing , subsequent stream , the Sequatchie River , is believed to have occupied a level 100 feet ...
... Walden Rikys ~ Sand Mountair White Oak Mountai FIG . 3. - Present course of Tennessee River . Walden Ridge , a parallel , southward - flowing , subsequent stream , the Sequatchie River , is believed to have occupied a level 100 feet ...
Página 203
... Walden Ridge by a branch of the Sequatchie River . If all of the sediment laid down in the sea opposite a given river is brought there by that river alone , then this evidence would indeed seem conclusive in favor of the theory of ...
... Walden Ridge by a branch of the Sequatchie River . If all of the sediment laid down in the sea opposite a given river is brought there by that river alone , then this evidence would indeed seem conclusive in favor of the theory of ...
Página 205
... Walden Ridge with a valley southwest of Scottsboro , Alabama , in the following words : While a direct comparison cannot be made between the Walden gorge and the upper Tennessee valley on account of difference in conditions , such a com ...
... Walden Ridge with a valley southwest of Scottsboro , Alabama , in the following words : While a direct comparison cannot be made between the Walden gorge and the upper Tennessee valley on account of difference in conditions , such a com ...
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Términos y frases comunes
Arkansas Atlantosaurus baselevel basin beds bones Burlington character clay Cliffwood conglomerate Corniferous Cretaceous Croix cycle deposits depression described developed dikes Dillard district drainage drift east Eocene erosion Eryops evidence fauna feet foramen formation fossils genus Geologist glacial glacier glauconite gorge grains granite gravels gray Hallopus hanging valleys horizon Huronian igneous intercentrum intrusion Kinderhook laccolith Lake Creek later layers limestone lower magnetite marls mass material Merchantville miles mineral moraine mountain Myrtle occur Ohio olivine Oltenia original peneplain plain Plate pleurocentra portion posterior present probably Professor quadrangle quarry region Report ridge river rocks salt sand sandstone Sarmatian Scaphites schists sediments serpentine shale shell side skull slopes species specimens strata streams surface teeth Tennessee terrace Tertiary theory of capture thickness tion Tortonian U. S. Geological Survey unconformity undet upper valley vertebræ Walden Walden Ridge
Pasajes populares
Página 655 - Preliminary Report on the Geology of the Arbuckle and Wichita Mountains, in Indian Territory and Oklahoma.
Página 57 - And they remark that the shocks were clearly distinguishable into two classes; those in which the motion was horizontal, and those in which it was perpendicular.
Página 89 - REPORT OF THE SPECIAL COMMITTEE FOR THE LAKE SUPERIOR REGION To C. Willard Hayes, Robert Bell, Frank D. Adams, and Charles R. Van Hise, general committee on the relations of the Canadian and the United States Geological Surveys.
Página 509 - Renard, the chambers become filled with muddy sediment, and "if we admit that the organic matter inclosed in the shell, and in the mud itself, transforms the iron in the mud into sulphide, which may be oxidized into hydrate, sulphur being at the same time liberated, this sulphur would become oxidized into sulphuric acid, which would decompose the fine clay, setting free colloid silica, alumina being removed in solution; thus we have colloid silica and hydrated oxide of iron in a state most suitable...
Página 387 - As the coalescence of basins and the integration of stream systems progress, the changes of local base-levels will be fewer and slower and the obliteration of the uplands, the development of graded piedmont slopes, and the aggradation of the chief basins will be more and more extensive. The higher parts of the piedmont slopes may be rock floors, thinly and irregularly veneered with waste, as has been described by Keyes for certain basins (bolsons) in New Mexico ; here, as well as upon the aggraded...