Bulletin, Ausgaben 213-215U.S. Government Printing Office, 1903 |
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20.-Geodetic position computations-Continued Alaska anticline basin belt bituminous bodies breccias Carboniferous Cartersville cement cent chalcocite chalcopyrite chert clay coal field contain copper Cotg country rock County Creek Cretaceous deposits depth developed parallel diff dikes diorite distance district east extends fault feet fissures folds formation fractures fuller's earth Geological Survey gold gossan granite gravel gypsum Henry Gannett igneous Inches iron Latitude lime limestone located log C log log F logarithms of circular longi marble mass Meridio meters miles Mineral Resources U. S. mining Mountain occur outcrops oxide phosphate porphyry portion probably pyrite quadrangle quartz quartzite region Rept River salt sand sandstones schists shales siliceous slag slate sphalerite square miles stone strata structure sulphides surface TABLE 20.-Geodetic position tances Tang thickness tion tude U. S. Geol United States Geological upper Valley veins Yukon zinc zone བར
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Seite 93 - Reconnaissances in the Cape Nome and Norton Bay regions, Alaska, in 1900,
Seite 1 - SLIPS. [Mount each slip upon a separate card, placing the subject at the top of the second slip. The name of the series should not be repeated on the series card, but the additional numbers should be added, as received, to the first entry.] Gannett, Henry.
Seite 181 - Observations on the flow of rivers in the vicinity of New York City, by H. A.
Seite 13 - No. 185, which may be obtained on application to the Director of the United States Geological Survey, Washington, DC...
Seite 373 - The geology of the road-building stones of Massachusetts, with some consideration of similar materials from other parts of the United States.
Seite 299 - The natural bitumen, which is known as asphalt, is composed, as far as we have been able to learn, of saturated and unsaturated di-cyclic, or polycyclic, alicyclic hydrocarbons and their sulphur derivatives, with a small amount of nitrogenous constituents. Asphalt may therefore be defined as any hard bitumen composed of such hydrocarbons and their derivatives, which melts on the application of heat to a viscous liquid ; while a maltha or soft asphalt may be defined as a soft bitumen, consisting of...
Seite 241 - Favorable conditions, for the accumulation, occur in Northwest Georgia and Alabama, at the contact of the Lower Carboniferous limestones with sandstones, which sometimes underlie it, and at the contact of the Beaver limestone with the underlying Weisner quartzite.