The Journal of Geology, Volume 13Thomas Chrowder Chamberlin University of Chicago Press, 1905 - Electronic journals Vols. for 1893-1923 includes section: "Reviews." |
Contents
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Common terms and phrases
amount Arkansas Atlantosaurus baselevel basin beds bones Bulletin Burlington calcium calcium carbonate carbonate clay Cliffwood conglomerate Corniferous County Cretaceous Croix cubic miles cycle Delaware limestone deposits depression dikes Dillard drainage drift east Eocene erosion Eryops evidence fauna feet foramen formation fossils geologists glacial glacier glauconite gorge granite gravels gray hanging valleys horizon Huronian Ibid igneous intercentrum intrusion Keweenawan Kinderhook laccolith Lake Creek later layers limestone lower magnetite marls material Megacerops mineral moraine mountain Myrtle occur Ohio olivine Oltenia original peneplain plain Plate pleurocentra portion posterior present probably quadrangle quarry region Report ridge river rock salt sand sandstone Sarmatian Scaphites schists sediments serpentine shale shells side skull slopes species specimens strata streams surface teeth Tennessee Tertiary thickness tion Tortonian U. S. Geological Survey unconformity upper valley vertebræ Walden Ridge zone
Popular passages
Page 568 - RATHBUN, RICHARD. Report upon the Condition and Progress of the US National Museum during the Year ending June 30, 1904.
Page 661 - Preliminary Report on the Geology of the Arbuckle and Wichita Mountains, in Indian Territory and Oklahoma.
Page 386 - ... [Davenport, Iowa, 1904.] — HATCH, FREDERICK H., and CORSTORPHINE, GEO. S. The Petrography of the Witwatersrand Conglomerates, with Special Reference to the Origin of the Gold (read November 14, 1904). [Reprinted from the Transactions of the Geological Society of South Africa, Vol. VII, Part III, 1904.] • The Geology of the Bezuidenhout Valley and the District East of Johannesburg (read August 8, 1904).
Page 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.
Page 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.
Page 393 - 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...
Page 402 - Passarge states that these desert plains are not undulating with low hills, but true plains of great extent, from which the isolated residual mountains rise like islands from the sea.
Page 515 - 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 condition most suitable for their combination.
Page 474 - Three Letters from, to the Hon. George M. Bowers, United States Fish Commissioner, on the Cruise, in the Eastern Pacific, of the US Fish Commission Steamer "Albatross.
Page 91 - Michigamme slate and schist, and (2) Ishpeming formation. Locally within the Michigamme slate, and apparently near its base, is an iron-bearing horizon. The Clarksburg volcanics, said to be a local phase of the Michigamme formation, were seen at Champion. The basal member of the Ishpeming formation is the Goodrich quartzite. This series, called the upper Marquette series by the...