The Journal of Geology, Volumen9Thomas Chrowder Chamberlin University of Chicago Press, 1901 Vols. for 1893-1923 includes section: "Reviews." |
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Otras ediciones - Ver todas
Términos y frases comunes
acid acrogene andesite appear Archean autocell axial basal expansion basin beds biotite body bowlders Bryozoa calycals carbonate Carboniferous cent character chondri clay coal color composition conglomerate Creek Cryptostomata crystals deposits described diameter differentiation evidence exposure fauna feet feldspar formation fossils fragments fulgurite Geological Survey Geologist glacial gneiss grains granite groundmass hornblende ijolite interglacial iron Kinderhook Lake layers limestone lithologic lower magma marl mass material mesopores miles minerals Mountains occur orbits origin orthoclase oxidized Paleozoic peripheral Permian phenocrysts plants Pliocene porphyritic porphyritic granite portion present probably Professor quarry quartz region Report represented ridges River Roche Roche limit Roche sphere rocks Sac limestone Salinas sand sandstone shale solid species specimens sphere of disruption strata structure surface Surv tabulæ thickness thin tion Trepostomata troilite U. S. Geol upper valley walls Waverly zoarial zoarium zooids
Pasajes populares
Página 505 - The stratigraphic succession of the fossil floras of the Pottsville formation in the southern anthracite coal field, Pennsylvania, by David White.
Página 215 - ... Jurassic Fauna of Cape Flora. With a Geological Sketch of Cape Flora and its Neighbourhood — Fossil Plants from Franz Josef Land— An Account of the Birds — Crustacea.
Página 298 - Report upon the Condition and Progress of the US National Museum during the year ending June 30, 1896.
Página 79 - Ward, LF 1900. Status of the Mesozoic floras of the United States. First paper: The older Mesozoic. US Geol. Surv., 2Oth Ann.
Página 345 - ... and the explanation of this correspondence he believed to be a causal one, the planes of separation, or jointing, being locally gaping where the streams adhere to the joint direction, but closed where they have been diverted from the course of the joint. Van Hise3 has in a similiar way explained the zigzags of 1 Published with the permission of the Director of the US Geological Survey. 3 DAUBREE : Ge'ologie Experimentale.
Página 373 - Their discrimination shall be based upon the local sequence of rocks, lines of separation being drawn at points in the stratigraphic column where lithologic characters change.
Página 233 - ... though several are most nearly allied to species found there as well as in the north. A few seem to be most nearly related to Pacific forms, such as the Elaphrus and one each of the species of Platynus and Pterostichus. On the whole, the fauna has a boreal aspect, though by no means so decidedly boreal as one would anticipate under the circumstances.
Página 163 - A group of sandstones and shales, measuring on the Ohio River 640 feet in thickness (from the black slate to the base of the sub-Carboniferous limestone in the Kentucky hills), [which] rests conformably upon the black slate."4 He further described a stratum of bituminous black shale 16 feet in thickness, 137 feet above the base of the group to which he gave the name " Waverly black slate."5 It was also stated that between the Coal-measures and Waverly in Hocking county was "a group of comparatively...
Página 222 - Dawson. [From Bulletin of the Geological Society of America, Vol. XI, 1899.] On the Probable Occurrence of a Large Area of Nepheline-Bearing Rocks on the Northeast Coast of Lake Superior.
Página 163 - for the rocks occurring between the "argillaceous slaty rock, or shale stratum," now known as the Ohio shale, and the "conglomerate" which lies at the base of the Coal-measures. Waverly is the name of the capital of Pike county in southern Ohio and Professor Briggs stated that "As some of the most beautiful stones that have been obtained were quarried at Waverly, we may, for the present, denominate these rocks the Waverly sandstone series."' In the following report, for some reason, Professor Briggs...