Reference samples for the earth sciences
F.J. Flanagan
1974, Geochimica et Cosmochimica Acta (38) 1731-1744
A revised list of reference samples of interest to geoscientists has been extended to include samples for the agronomist, the archaeologist and the environmentalist. In addition to the source from which standard samples may be obtained, references or pertinent notes for some samples are included.The number of rock reference samples...
Craters on Earth, Moon, and Mars: Multivariate classification and mode of origin
R.J. Pike
1974, Earth and Planetary Science Letters (22) 245-255
Testing extraterrestrial craters and candidate terrestrial analogs for morphologic similitude is treated as a problem in numerical taxonomy. According to a principal-components solution and a cluster analysis, 402 representative craters on the Earth, the Moon, and Mars divide into two major classes...
U-Th-Pb and Rb-Sr systematics of Apollo 17 boulder 7 from the North Massif of the Taurus-Littrow Valley
P.D. Nunes, M. Tatsumoto, D.M. Unruh
1974, Earth and Planetary Science Letters (23) 445-452
Portions of highland breccia boulder 7 collected during the Apollo 17 mission were studied using UThPb and RbSr systematics. A RbSr internal isochron age of3.89 ± 0.08b.y. with an initial87Sr/86Sr of0.69926 ± 0.00008 was obtained for...
Lunar crater depths from orbiter IV long-focus photographs
D.W.G. Arthur
1974, Icarus (23) 116-133
The paper presents method and results for the determination of the depths of more than 1900 small lunar craters from measures of shadows on the long-focus pictures obtained by Lunar Orbiter IV. The method for converting the measured shadow length into the true...
Erosion by catastrophic floods on Mars and Earth
V.R. Baker, D.J. Milton
1974, Icarus (23) 27-41
The large Martian channels, especially Kasei, Ares, Tiu, Simud, and Mangala Valles, show morphologic features strikingly similar to those of the Channeled Scabland of eastern Washington, produced by the catastrophic breakout floods of Pleistocene Lake Missoula. Features in the overall pattern include the...
Antiferromagnetic inclusions in lunar glass
A. N. Thorpe, F. E. Senftle, Charles Briggs, Corrine Alexander
1974, Earth and Planetary Science Letters (22) 85-90
The magnetic susceptibility of 11 glass spherules from the Apollo 15, 16, and 17 fines and two specimens of a relatively large glass spherical shell were studied as a function of temperature from room temperature to liquid helium temperatures. All but one...
The regolith at the Apollo 15 site and its stratigraphic implications
M. H. Carr, C.E. Meyer
1974, Geochimica et Cosmochimica Acta (38) 1183-1197
Regolith samples from the Apollo 15 landing site are described in terms of two major fractions, a homogeneous glass fraction and a non-homogeneous glass fraction. The proportions of different components in the homogeneous glass fraction were determined directly by chemical analyses of individual...
Teleseismic studies indicate existence of deep magma chamber below Yellowstone National Park
H.M. Iyer
1974, Earthquake Information Bulletin (USGS) (6) 3-7
The secrets of Yellowstone National Park's spectacular geysers and other hot water and steam phenomena are being explored by the U.S Geological Survey with the aid of distant earthquakes (teleseisms). For some time geologists have known that the remarkable array of steam and hot water displays, for which the park...
New cooperative seismograph networks established in southern California
D.P. Hill
1974, Earthquake Information Bulletin (USGS) (6) 8-11
Southern California has more active faults located close to large, urban population centers than any other region in the United States. Reduction of risk to life and property posed by potential earthquakes along these active faults is a primary motivation for a cooperative earthquake research program between the U.S Geological...
A geologic and geophysical study of the Charleston, South Carolina, earthquake zone
B.B. Higgins, P. Popenoe
1974, Earthquake Information Bulletin (USGS) (6) 16-23
A maximum Modified Mercalli intensity of X was reported in Charleston. Damage to buildings was extensive, railroads were made impassable, and communications were disrupted. During the earthquake 27 people were killed, and 56 later died as a result of exposure and injuries sustained during the shaking. The earthquake was reported...
Locating the world’s earthquakes
J.S. Derr
1974, Earthquake Information Bulletin (USGS) (6) 11-15
Appraising volcanic hazards of the Cascade Range of the northwestern United States
D. R. Crandell, D. R. Mullineaux
1974, Earthquake Information Bulletin (USGS) (6) 3-10
New seismic study begins in Puerto Rico
Arthur C. Tarr
1974, Earthquake Information Bulletin (USGS) (6) 23-26
A new seismological project is now underway in Puerto Rico to provide information needed for accurate assessment of the island's seismic hazard. The project should also help to increase understanding of the tectonics and geologic evolution of the Caribbean region. The Puerto Rico Seismic Program is being conducted by the...
Scientists probe Earth’s secrets at the Hawaiian Volcano Observatory
J. D. Unger
1974, Earthquake Information Bulletin (USGS) (6) 3-11
The Hawaiian Volcano Observatory (HVO) sits on the edge of Kilauea Caldera at the summit of Kilauea Volcao, one of the five volcanoes on the island of Hawaii, the largest island in the Hawaiian Islands chain. Of the five, only Kilauea and Mauna Loa have been active in the past...
Computer systems for automatic earthquake detection
S.W. Stewart
1974, Earthquake Information Bulletin (USGS) (6) 17-21
U.S Geological Survey seismologists in Menlo park, California, are utilizing the speed, reliability, and efficiency of minicomputers to monitor seismograph stations and to automatically detect earthquakes. An earthquake detection computer system, believed to be the only one of its kind in operation, automatically reports about 90 percent of all local...
Earthquakes, November-December 1973
W. J. Person
1974, Earthquake Information Bulletin (USGS) (6) 26-27
A number of significant earthquakes happened during the last 2 months of 1973. Two major earthquakes (magnitude 7.0-7.9) occurred in the New Hebrides Islands, bringing the final major earthquake total for the year to 11, somewhat below the annual average which is 18. One great earthquake (magntidue 8.0 and above)...
Earthquakes, January-February 1974
W. J. Person
1974, Earthquake Information Bulletin (USGS) (6) 18-19
During the first 2 months of 1974, earthquakes caused fatalities in Peru and Turkey. The largest earthquake during the period was a magnitude 7.2 shock in the New Hebrides Islands. A local tsunami was generated by a magnitude 7.0 earthquake in the Solomon Islands. The relative quiet that characterized world...
The design earthquake and earthquake response spectra
W. W. Hays
1974, Earthquake Information Bulletin (USGS) (6) 18-22
Earthquake prediction; new studies yield promising results
R. Robinson
1974, Earthquake Information Bulletin (USGS) (6) 14-17
On Agust 3, 1973, a small earthquake (magnitude 2.5) occurred near Blue Mountain Lake in the Adirondack region of northern New York State. This seemingly unimportant event was of great significance, however, because it was predicted. Seismologsits at the Lamont-Doherty geologcal Observatory of Columbia University accurately foretold the time, place,...
Turkey’s North Anatolian Fault; a comparison with the San Andreas Fault
J. W. Dewey
1974, Earthquake Information Bulletin (USGS) (6) 12-16
The Mississippi Valley earthquakes of 1811 and 1812
O.W. Nuttli
1974, Earthquake Information Bulletin (USGS) (6) 8-13
Shortly after 2 o'clock on the morning of December 16, 1811, the Mississippi River valley was convulsed by an earthquake so severe that it awakened people in cities as distant as Pittsburgh, Pennsylvania, and Norfolk, Virginia. This shock inaugurated what must have been the most frightening sequence of earthquakes ever...
The California geodimeter network; measuring movement along the San Andreas Fault
J.C. Savage
1974, Earthquake Information Bulletin (USGS) (6) 3-7
Following the great California earthquake of 1906 H. F. Reid, a contemporary seismologist, proposed the elastic rebound theory which in effect says that earthquake potential arises from the accumulation of elastic strain within the Earth's crust, just as the stretching of a rubberband creates the potential for violent rebound upon...
Bibliography of research publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-72
Paul H. Eschmeyer, Van T. Harris
1974, Book
No abstract available....
Searching for prehistoric earthquakes in lake sediments
J. Sims
1974, Earthquake Information Bulletin (USGS) (6) 3-9
How often do major earthquakes occur? Do they follow regular patterns of recurrence, and if so, what is the length of the recurrence interval? These questions are of obvious importance to populations located in regions where earthquakes are a commonplace occurrence. They are also relevant questions in regions that are...
Seismicity and earthquake hazards of the Wasatch Front, Utah
H. Spall
1974, Earthquake Information Bulletin (USGS) (6) 12-17
The impressive topographic break at the base of the Wasatch Range immediately east of Salt Lake City, Utah, marks the location where Mormon colonizer Brigham Young said in 1847. "This is the place" Actually, "the place" is termed the Wasatch Front because the Wasatch Range to the east, which rises...
