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Page 5189, results 129701 - 129725

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Minerals, lands, and geology for the common defence and general welfare, Volume 1, Before 1879 : A history of public lands, federal science and mapping policy, and development of mineral resources in the United States
Mary C. Rabbitt
1979, Book
This volume, the first of a four-volume study, is concerned with events in the United States before the establishment of the U.S. Geological Survey, during the years in which geology evolved as a science and began to influence economic development and national policy. Subsequent volumes continue the story but focus...
Revised geomagnetic polarity time scale for the interval 0–5 m.y. B.P.
Edward A. Mankinen, G. Brent Dalrymple
1979, Journal of Geophysical Research B: Solid Earth (84) 615-626
A change in the constants used in K‐Ar dating and a significant increase in new data have made a recompilation and recomputation of data used to define the Late Cenozoic K‐Ar polarity time scale highly desirable at this time. All available data in the range 0–5 m.y. have been recalculated...
Assessing Metallic Resources in Alaska
Donald A. Singer, A. Thomas Ovenshine
1979, American Scientist (67) 582-589
In the last two decades federal and state governments have become in creasingly preoccupied with classi fying public lands according to the uses that may be made of them. One outcome of the classifying can be a change in the land's legal status from one in which any use...
Some aspects of the early history of seismology
J.S. Sachs
1979, Earthquake Information Bulletin (USGS) (11) 58-63
From the earliest times, people have been terrified yet fascinated by the workings of the Earth. Indeed records of earthquakes have been kept in China for over 3000 years and for 1500 years in Japan. because of the interior of the Earth is inaccessible, nothing about it could be known...
Records of prehistoric earthquakes in sedimentary deposits in lakes
J. Sims
Henry Spall, editor(s)
1979, Earthquake Information Bulletin (USGS) (11) 228-233
Historic records of earthquakes are too short to allow a true assessment of their recurrence intervals. Methods are needed, therefore, that will enable the seismicity of an area to be evaluated beyond the limit of historic records. One place where a record of ancient seismic activity might be preserved is in...
Earthquake studies on Canada’s west coast; Pacific Geoscience Centre
G. C. Rogers, Robin P. Riddihough
1979, Earthquake Information Bulletin (USGS) (11) 175-179
On a global scale, Canada's west coast lies within the zone of a seismicity that stretches around the Pacific Ocean. In plate tectonic terms, it is dominated by the same right-lateral shearing between the Pacific and American plates that is responsible for the seismicity of California. However, in southern British...
Earthquake predictions using seismic velocity ratios
R. W. Sherburne
1979, Earthquake Information Bulletin (USGS) (11) 18-21
Since the beginning of modern seismology, seismologists have contemplated predicting earthquakes. The usefulness of earthquake predictions to the reduction of human and economic losses and the value of long-range earthquake prediction to planning is obvious. Not as clear are the long-range economic and social impacts of earthquake prediction to a...
Soviet prediction of a major earthquake
D.W. Simpson
1979, Earthquake Information Bulletin (USGS) (11) 234-235
On November 1, 1978, a magnitude 7 earthquake occurred north of the Pamir Mountains near the Tadjiskistan-Kirghizia border, 150 kilometers east of Garm in Soviet Central Asia. Although the earthquake was felt in Tashkent, Dushanbe, and the Fergana Valley, the epicentral area was uninhabited at that time of year, and...
Nesting ecology of Arctic loons
Margaret R. Petersen
1979, The Wilson Bulletin (91) 608-617
Arctic Loons were studied on the Yukon-Kuskokwim Delta, Alaska, from the time of their arrival in May to their departure in September, in 1974 and 1975. Pairs arrived on breeding ponds as soon as sufficient meltwater was available to allow their take-off and landing. Loons apparently do not initiate nests...
Geohydrology of Brooks, Lowndes, and western Echols Counties, Georgia
R.E. Krause
1979, Water-Resources Investigations Report 78-117
The principal artesian aquifer, a limestone of Eocene to Miocene age, is the main source of water supply for Brooks, Lowndes, and western Echols Counties in south Georgia. Pumpage of about 22 million gallons perday from this prolific aquifer has not posed any problems regarding declining water levels or depletion...
Paleozoic rocks on the Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1978
Robert L. Detterman, James E. Case, Frederic H. Wilson
1979, Circular 804-B
Two small areas of middle Paleozoic limestone were discovered near Gertrude Creek, 16 km north of Becharof Lake on the Alaska Peninsula, during reconnaissance flying as part of the Alaska Mineral Resource Assessment Program (AMRAP) for the Alaska Peninsula. Previously, the only known occurrence of Paleozoic rocks on the Alaska...
Modeling of rock friction 1. Experimental results and constitutive equations
James H. Dieterich
1979, Conference Paper, Journal of Geophysical Research B: Solid Earth
Direct shear experiments on ground surfaces of a granodiorite from Raymond, California, at normal stresses of ??6 MPa demonstrate that competing time, displacement, and velocity effects control rock friction. It is proposed that the strength of the population of points of contacts between sliding surfaces determines frictional strength and that...
Potentials and limits for the use of ozone as a fish disease control agent
Gary A. Wedemeyer, Nancy C. Nelson, T. Yasutake
1979, Ozone: Science and Engineering (1) 295-318
Ozone and chlorine inactivation curves were determined in three types of freshwater at 20 C for the destruction of the fish pathogens Aeromonas salmonicida the etiologic agent of furunculosis, and Yersinia ruckeri the enteric redmouth bacterium (ERM). Ozone and chlorine inactivation curves were also obtained in the same water types at 10 C for...
A “natural and legitimate ambition . . . .”
S. J. Pyne
1979, Earthquake Information Bulletin (USGS) (11) 53-57
Grove Karl Gilbert (1843-1918) was Chief Geologist for the U.S Geological Survey from 1889 to 1892. Still working for the Survey, he was in Berkeley when the 1906 earthquake struck San Francisco. Immediately on waking, he began to study the motion of the light fixture hanging from the ceiling, trying...