Tectonics of the Mendocino triple junction
Eli A. Silver
1971, Bulletin of the Geological Society of America (82) 2965-2977
Interpretation of reflection profiles and of the magnetic anomaly pattern over the Gorda Basin and Escarpment gives broad agreement with the triple junction model of McKenzie and Morgan (1969). However, the basin has undergone internal deformation, a local departure from rigid plate tectonics, and the...
Age of the Mesozoic oceanic crust in the California Coast Ranges
Marvin A. Lanphere
1971, Bulletin of the Geological Society of America (82) 3209-3211
K-Ar ages of approximately 155 m.y. were measured on minerals from ophiolites at two localities in the California Coast Ranges. Upper Jurassic rocks of the Great Valley sequence are in depositional contact with underlying ophiolites, which are interpreted as Mesozoic oceanic crust that formed during...
Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 8
F.T. Manheim, F.L. Sayles
1971, Initial reports of the Deep Sea Drilling Project (8) 857-869
Leg 8 sites are dominated by siliceous-calcareous biogenic oozes having depositional rates of 0.1 to 1.5 cm/1000 years. Conservative constituents of pore fluids showed, as have cores from other pelagic areas of the Pacific, insignificant or marginally significant changes with depth and location. However, in Sites 70 and 71, calcium,...
Mobility of uranium and thorium in glassy and crystallized silicic volcanic rocks
J. N. Rosholt, Prijana, Donald C. Noble
1971, Economic Geology (66) 1061-1069
No abstract available....
Precision and detection limits of certain minor and trace elements in silicates by electron microprobe analysis
Robert H. Heidel
1971, Analytical Chemistry (43) 1907-1908
No abstract available....
Effects of karst features on circulation of water in carbonate rocks in coastal areas
V. T. Stringfield, H. E. LeGrand
1971, Journal of Hydrology (14) 139-157
The normal balance between fresh water in coastal aquifers and sea water applies also to carbonate-rock aquifers that have been karstified, but there are local modifications in the balance that need to be considered. Uneven distribution of permeability, expressed by a network of...
Review: The kinds of mankind: An introduction to race and racism, by Morton Klass and Hal Hellman
Charles L. Douglas
1971, American Biology Teacher (33) 505
No abstract available....
Mean annual precipitation and precipitation depth-duration-frequency data for the San Francisco Bay region, California
S. E. Rantz
1971, Basic Data Contribution 32
This report presents precipitation data for the San Francisco Bay region in a form suitable for use as criteria for both drainage design and the study of the stability of land slopes. The data presented include (1) an isohyetal map showing long-term mean annual precipitation and (2) a table of...
EROS — New observation vantage points and processes
Raymond W. Fary Jr.
1971, Conference Paper
The EROS Program objective is to utilize aircraft and spacecraft remote-sensing technology as complementary parts of integrated data collection, processing, and dissemination systems to support resources research and management functions of the Department of the Interior. The Program develops and coordinates research in the applications of new sensors for resources...
Third International Seminar for Hydrology Professors
Lynn M. Shown
1971, Eos Science News (52) 723-723
The Third International Seminar for Hydrology Professors was held at Purdue University in Lafayette, Indiana. There were 72 U.S. participants from 25 States and 19 participants from 15 other countries as follows: three from Canada; two each from Costa...
The problem of groundwater discharge into the seas
B.I. Kudelin, I.S. Zekster, A.V. Meskheteli, S.A. Brusilovsky, F.W. Trainer
1971, Eos, Transactions, American Geophysical Union (52) 717-722
Introductory Note: The dynamic equilibrium of the various factors involved in the world water balance or budget is the central scientific problem of the International Hydrological Decade. One of the potentially vital elements of the balance is groundwater discharge to the oceans. To paraphrase the authors of the following Russian...
Earth-science studies of a nuclear test area in the western Aleutian Islands: Supplementary hydrologic information: Discussion
W. C. Ballance, L. M. Gard
1971, Bulletin of the Geological Society of America (82) 2963-2963
No abstract available....
Age and chemistry of tertiary volcanic rocks in north-central Arizona and relation of the rocks to the Colorado Plateaus
Edwin H. McKee, Charles A. Anderson
1971, Geological Society of America Bulletin (82) 2767-2782
During late Miocene (14.8 m.y.) to early Pliocene (10.1 m.y.) time, local latite and widespread basaltic flows accumulated with associated continental sedimentary deposits in north-central Arizona. Some of these rocks were displaced and tilted by normal faults, and new drainage, now occupied in part by basalt flows of late Pliocene...
Metamorphism of Precambrian granitic xenoliths in a mica peridotite at Rose Dome, Woodson County, Kansas: Part 2, petrologic and mineralogic studies
Paul C. Franks, M. E. Bickford, Holly C. Wagner
1971, Bulletin of the Geological Society of America (82) 2869-2889
Field, drill-core, petrographic, and mineralogic studies show that the Precambrian granitic rocks exposed on Rose Dome, Woodson County, Kansas, were emplaced as inclusions of basement rock in a mica peridotite magma that intruded the Pennsylvanian section of Rose Dome during Late Cretaceous time. High temperatures of the alkaline ultramafic magma...
A method for discriminating between biogenic and chemical origins of the ore-stage pyrite in a roll-type uranium deposit
C. G. Warren
1971, Economic Geology (66) 919-928
Some roll-type uranium deposits are marginal to an altered tongue in sandstone beds that originally contained more-or-less uniformly distributed pyrite. Mineralizing solutions percolated through the sandstone, oxidized nearly all the pre-existing pyrite, and then redeposited part of the pyrite downstream in an embryonic ore zone....
Mesozoic granitic rocks in northwestern Nevada: A link between the Sierra Nevada and Idaho batholiths
James G. Smith, Edwin H. McKee, Donald Bruce Tatlock, Richard F. Marvin
1971, Bulletin of the Geological Society of America (82) 2933-2944
Extensive areas in northwestern Nevada are underlain by granodiorite and quartz monzonite plutons, as well as less common smaller bodies of quartz diorite. Twenty-six K/Ar age determinations on rocks from this suite range from about 175 to 85 m.y., but most of the plutons are...
The effect of salinity on the maximum thermal gradient of a hydrothermal system at hydrostatic pressure
John L. Haas Jr.
1971, Economic Geology (66) 940-946
The effect of salinity on the temperature-depth relations of a brine of constant composition, enclosed in a vein system, but freely connected to the surface, and everywhere at the boiling point for the hydrostatic head, was calculated by using a mathematical model. The Na-Ca-K-Cl brines...
Geochemical interpretations of groundwater flow systems
William Back, Bruce B. Hanshaw
1971, Journal of the American Water Resources Association (7) 1008-1016
Interest in the geochemistry of groundwater is increasing owing to the great number of current projects involving underground liquid waste storage, artificial recharge of potable water, accidental contamination of groundwater bodies, sanitary landfills, and pollution monitoring. Geochemical techniques used to facilitate the understanding of a groundwater...
Investigation of magnetization and density of a north Atlantic seamount using Poisson's theorem
Lindrith Cordell, Patrick Taylor
1971, Geophysics (36) 919-937
The relationship between the gravitational and magnetic potentials caused by a uniform distribution of mass and magnetization may be used to obtain independent information about these physical properties. The general relationship in the frequency domain between the Fourier transforms of the gravity and magnetic anomaly...
A device for monitoring radio-marked animals
D.S. Gilmer, V.B. Kuechle, I.J. Ball Jr.
1971, Journal of Wildlife Management (35) 829-832
A simple, portable, and economical recording system consisting of a receiver, signal conditioner, recorder, and power source is described. The system was designed to monitor the signal strength from a radio-marked animal at a particular location. Information is stored on recorder chart paper. Radio-marked ducks have been successfully monitored at...
Channel catfish virus: A new herpesvirus of ictalurid fish
K. Wolf, R. W. Darlington
1971, Journal of Virology (8) 525-533
Channel catfish virus was studied in ictalurid fish cell culture, the only system of fish, amphibian, avian, and mammalian cells found to be susceptible. Channel catfish virus infection resulted in intranuclear inclusions and extensive syncytium formation. Replication occurred from 10 to 33 C, but not higher. Best growth was from...
Effect of vancomycin, streptomycin and tetracycline pulsating jet lavage on contaminated wounds
Duane E. Cutright, Surindar N. Bhaskar, Arthur Gross, Bienvenido Perez, Joe D. Beasley III, Daniel M. Mulcahy
1971, Military Medicine (136) 810-813
No abstract available. ...
Book review: Infectious and parasitic diseases of wild birds
L. N. Locke
1971, Journal of Wildlife Diseases (7) 339-342
No abstract available....
Effects of introducing foxes and raccoons on herring gull colonies
J.A. Kadlec
1971, Journal of Wildlife Management (35) 625-636
Red foxes (Vulpes fulva) and raccoons (Procyon lotor) released at colonies of herring gulls (Larus argentatus) on islands off the Massachusetts coast effectively eliminated the production of young gulls. Annual predator introductions for 2-4 years caused major reductions in colony size and occasionally total abandonment of the island as a...
Waterfowl nesting on interstate highway right-of-way in North Dakota
R.B. Oetting, J.F. Cassel
1971, Journal of Wildlife Management (35) 774-781
We studied 630 acres of roadside along 23 miles of Interstate 94 in Stutsman County, North Dakota, to assess wildlife values of highway rights-of-way. We found 422 duck nests that had an overall success of 57 percent in 1968, 1969, and 1970. Mammalian predators were responsible for 85 percent of...
