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Page 6825, results 170601 - 170625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geological age of the Claypool site, northeastern Colorado
H.E. Malde
1960, American Antiquity (26) 215-222
Artifacts related to the Cody complex occur in medium-grained sand that is spread as a blanket eolian deposit a few feet thick in the Claypool site area, Washington County, Colorado. The artifact-bearing sand lacks noticeable dunal topography and lies unconformably on marl of Yarmouth age and on waterlaid coarse sand and fine...
Variation in surface elevation of the nisqually glacier Mt. Rainier, Washington
A. Johnson
1960, International Association of Scientific Hydrology - Bulletin (5) 54-60
Variation in surface elevations of the Nisqually Glacier has been recorded since 1942 by the annual measurement of three profiles across the glacier, designated as nos. 1, 2, and 3, located 0.5, 1.0, and 1.7 miles respectively from the terminus, at approximate mean elevations of 5,250,6,000, and 6,800 feet. A fourth...
Montana earthquakes noted in pennsylvania mine‐water pools
W.B. Hopkins, T.A. Simpson
1960, Eos, Transactions, American Geophysical Union (41) 435-436
A recent paper by daCosta [1959] reported water‐level fluctuations caused by the Montana earthquake of August 18, 1959, and mentioned the fluctuations registered in three mine‐water pools of the Northern anthracite field in northeastern Pennsylvania, ten miles north of Wilkes‐Barre. This paper will discuss the water‐level phenomena of these pools in more detail. Most...
Chemical equilibrium diagrams for ground-water systems/les graphiques de l'équilibre chimique pour les systèmes des eaux souterrainnes
J.D. Hem
1960, International Association of Scientific Hydrology - Bulletin (5) 45-53
Chemical equilibrium in water in contact with calcite is expressed by means of a pH grid overlay on a log-log plot of activities of bicarbonate vs. calcium ions. Solubility of ferrous iron and the solid-phase minerals that would be stable in a solution containing activities of 10 ppm of sulfate...
Mapping mean areal precipitation
D.R. Dawdy, W. B. Langbein
1960, International Association of Scientific Hydrology - Bulletin (5) 16-23
A method is presented for using point mean precipitation data to estimate areal values in regions of high relief. Variation of precipitation with altitude is determined. Local anomalies from this relationship are mapped, and lines of equal anomaly are drawn. By use of the mean relation corrected for the local anomaly, the mean precipitation at...
Areal flood-frequency analysis in a humid region
M. A. Benson
1960, International Association of Scientific Hydrology - Bulletin (5) 5-15
This study was made to define the relation between floods in a humid region and the causative factors that account for their variability. The study covered the basic relationships between peak discharges and hydrologic factors as well as the practical working methods for generalizing the results on a regional basis. Statistical multiple-correlation...
Extract ability of humic acid from coalified logs as a guide to temperatures in colorado plateau sediments
Irving A. Breger, J.C. Chandler
1960, Economic Geology (55) 1039-1047
Coalified logs in Triassic and Jurassic sediments of the Colorado Plateau have been exposed to alkaline ground water. Extraction of humic acids under such conditions is temperature dependent. Study of residual humic acids in a suite of coalified logs has indicated that temperatures up to but not over 120° C prevailed in the sediments. This maximum temperature corresponds with that...
First natural occurrence of coesite
E. C. T. Chao, E.M. Shoemaker, B.M. Madsen
1960, Science (132) 220-222
Coesite, the high-pressure polymorph of SiO2, hitherto known only as a synthetic compound, is identified as an abundant mineral in sheared Coconino sandstone at Meteor Crater, Arizona. This natural occurrence has important bearing on the recognition of meteorite impact craters in quartz-bearing geologic formations....
The chief oxide-burgin area discoveries, East Tintic district, Utah; A case history
J.B. Bush, D.R. Cook, T. S. Lovering, H. T. Morris
1960, Economic Geology (55) 1116-1147
The Burgin shaft is in the Chief Oxide area of the E. Tintic district, Utah, and is about a mile E. of any previously known ore bodies; workings from it are currently developing a substantial amount of commercial Pb-Zn ore in several blind ore bodies...
Review of paleomagnetism
Allan Cox, Richard R. Doell
1960, GSA Bulletin (71) 645-768
This review is an attempt to bring together and discuss relevant information concerning the magnetization of rocks, especially that having paleomagnetic significance. All paleomagnetic measurements available to the authors are here compiled and evaluated, with a key to the summary table and illustrations in English and Russian. The principles upon...
The stoneroller, Campostoma anomalum (Rafinesque), in Great Smoky Mountains National Park
R. E. Lennon, P. S. Parker
1960, Transactions of the American Fisheries Society (89) 263-270
The stoneroller (Campostoma anomalum) is one of the more important fish in Great Smoky Mountains National Park because of its abundance and habits. Although esteemed locally as a food and a bait fish, the stoneroller is exploited but little since the fishing regulations which govern the utilization...
Deposits of the manganese oxides
Richard G. Petersen
1960, Economic Geology (55) 1-55
One of the problems of the wartime program of studies of domestic manganese deposits concerned the identification of, and modes of origin of the manganese oxide minerals. Of the hundreds of specimens of the oxides collected in the United States, the minerals of about 250...