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Page 7224, results 180576 - 180600

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Specific yield determined from a Thiem's Pumping‐Test
L.K. Wenzel
1933, Eos, Transactions, American Geophysical Union (14) 475-477
The specific yield of a water-bearing formation is defined as the ratio of (1) the volume of water, which after being saturated, it will yield by gravity to (2) its own volume (O. E. Meinzer, Outline of ground-water hydrology, U.S. Geol. Sur. Water-Supply Paper 494, p. 28, 1923). It is...
Further remarks on the Cripple Creek Volcano, Colorado
G. F. Loughlin
1933, Eos, Transactions, American Geophysical Union (14) 243-243
Structural evidence, particularly in the deeper mine‐workings, indicates that the volcano, which is of Tertiary age, was developed by explosive eruptions at a number of points along intersecting fissure‐systems that had been formed in pre‐Cambrian granite by east‐west compression, probably during the Laramide revolution. The volcanic breccia, which consists principally of...
Volcanic history of the Magdalena District, New Mexico
A. H. Koschmann
1933, Eos, Transactions, American Geophysical Union (14) 250-250
The Magdalena District in central New Mexico comprises the Magdalena Range and Granite Mountain which are block mountains of the Basin Range type. They consist of Carboniferous sedimentary formations on a pre-Cambrian basement and are covered by Tertiary volcanic rocks.Volcanism in the District was preceded by considerable faulting, tilting, and...
Geophysical interpretation of ground‐water levels
O. E. Meinzer
1933, Eos, Transactions, American Geophysical Union (14) 36-37
The theory of rock‐pressure as a cause of artesian‐head dates back at least to early Grecian times. Thus the philosopher Thales, about 600 B.C., taught that the springs derive their water from the ocean through subterranean channels and that the water is lifted to the springs by rook‐pressure. The theory of rock‐pressure has had...
Some relations between ground‐water hydrology and oceanography
David G. Thompson
1933, Eos, Transactions, American Geophysical Union (14) 30-33
In many areas along the sea-coasts of the world the water-supply for human use is derived largely, and in some areas wholly, from underground sources. Because of the proximity to the ocean in these areas, in some respects the geologic and hydrologic conditions that govern the occurrence and movement of...
Deep‐well salinity‐exploration
A.G. Fiedler
1933, Eos, Transactions, American Geophysical Union (14) 478-480
One of the outstanding accomplishments of recent years in connection with the study of the geologic source of groundwater and the quality of water yielded by different formations has been the development of methods and equipment for the exploration of wells. The description and use of the deep‐well current‐meter on well‐exploration work in Hawaii and New...
Fluctuations of water‐surface in observation‐wells and at stream gaging‐stations in the Mokelumne Area, California, during the earthquake of December 20, 1932
Arthur M. Piper
1933, Eos, Transactions, American Geophysical Union (14) 471-475
On December 20, 1932, much of the western United States felt a pronounced earthquake‐shock which caused noticeable fluctuations of the water‐surface in several observation‐wells and at two stream gaging‐stations in the Mokelumne Area, central California. These effects of the earthquake are reported briefly in this paper.According to Dr. Byerly (personal...
Methods for the investigation of the statistics of the commercial fisheries of the Great Lakes
Ralph Hile, William R. Duden
1933, Transactions of the American Fisheries Society (63) 292-305
During the summer and fall of 1939 four experiments were conducted at the Patuxent Research Refuge, Bowie, Maryland, to determine the protein requirements of bobwhite chicks. A total of 816 chicks were used to compare six levels of protein, namely, 22,24,26, 28, 30, and 32 per cent.....From the three standpoints...
Sixth report of the United States Geographic Board: 1890 to 1932
1933, Report of the United States Geographic Board 6
This report contains, with the exception of a comparatively small number, all the decisions rendered by the board from its organization in 1890 through June, 1932, and supersedes all previous reports. Not included in this report are such decisions as have either been vacated, or, being revised, have been replaced...