Palladium, platinum, and rhodium concentrations in mafic and ultramafic rocks from the Zhob Valley and Dargai complexes, Pakistan
Norman J. Page, Joseph Haffty, Zaki Ahmad
1980, Professional Paper 1124-F
The Zhob Valley and Dargai complexes, Pakistan, consist of harzburgite and dunite tectonites containing chromite deposits, pyroxenite, wehrlite, and gabbro. Both are ophiolite complexes. Palladium, platinum, and rhodium were found in concentrations of up to 170, 200, and 22 parts per billion, respectively. Average concentrations for both complexes and all...
Zeolitization of Tertiary tuffs in lacustrine and alluvial deposits in the Ray-San Manuel area, Final and Gila Counties, Arizona
Medora H. Krieger
1980, Professional Paper 1124-D
Specimens of tuff in the Ray-San Manuel area, southeastern Arizona, have been X-rayed to determine the present approximate mineralogic composition and the type and degree of alteration of the tuffs. Some of the tuffs consist largely of glass or have been partly or completely altered to calcium montmorillonite; many of...
Diatoms and stratigraphically significant silicoflagellates from the Atlantic Margin Coring Project and other Atlantic margin sites
W.H. Abbott
1980, Micropaleontology (26) 49-80
In 1976, 19 sites were cored along the U.S. Atlantic Continental Shelf and Slope by the Oceanographic Branch of the U.S. Geological Survey aboard the Glomar Conception. Only 6 sites contained siliceous microfossil assemblages of sufficient quantity and quality for biostratigraphic study. Two of the sites, AMCOR (Atlantic Margin Coring Project) 6002...
Tectonic relations of carbon dioxide discharges and earthquakes
W. P. Irwin, Ivan Barnes
1980, Journal of Geophysical Research B: Solid Earth (85) 3115-3121
CO2‐rich springs occur worldwide along major zones of seismicity. They are mostly in young orogenic belts, but some are in areas of rifting continental platforms. Analyses of 13C content indicate that much of the CO2 is derived from the mantle and that other important sources are the metamorphism of marine carbonate‐bearing sedimentary...
Lateral trends and vertical sequences in estuarine sediments, Willapa Bay, Washington
H. Edward Clifton, L. Phillips
1980, Conference Paper
Willapa Bay is a sizable estuary on the southern coast of Washington- Relatively unmodified in a geologic sense by human activity the bay provides an excellent example of modern depositional facies in an estuarine setting. Studies of these deposits indicate that consistent lateral trends exist in sediment texture and sedimentary...
The Klamath Mountains
W. P. Irwin
J. Aubouin, Richard J. Blanchet, C. Rangin, editor(s)
1980, Bulletin de la Société Géologique de France (22) 527-532
No abstract available....
Geology of a zone of metamorphic core complexes in southeastern Arizona
Norman G. Banks
1980, Geological Society Memoir 177-215
An elongate northwest-trending zone of batholith-size metamorphic core complexes extends some 130 km from the Rincon Mountains to the Picacho Mountains in southeastern Arizona. The complexes are characterized by undeformed to gneissic granitic intrusions, gneissic to phyllonitic xenoliths and wall rocks derived mainly from Precambrian granitic rock, shallow-dipping foliation, and...
Hydrology comes of age: Impact of the International Hydrological Decade
R. L. Nace
1980, Eos, Transactions, American Geophysical Union (61) 1241-1241
The IHD (International Hydrological Decade), 1965 to 1974, was conceived as a concerted international effort to bring into focus the badly fragmented subdiscipline of hydrology, to evolve a global perspective on water, and to provide global information on water. Until the last decade or so, hydrology was a laggard science....
Uranium in secondary silica: A possible exploration guide
Robert A. Zielinski
1980, Economic Geology (75) 592-602
Study of uraniferous silica precipitates in the Shirley Basin, Wyoming, identified areas where ancient uraniferous ground water once ponded. Chalcedony collected from and directly beneath thick accumulations of rhyolite ash contain as much as 250 ppm uranium in a pre-ash topographic low and lesser concentrations (10 to 160 ppm) elsewhere....
Research on interactive genetic-geological models to evaluate favourability for undiscovered uranium resources
W.I. Finch, H.C. Granger, R.D. Lupe, R.B. McCammon
1980, Conference Paper, Uranium Evaluation and Mining Techniques: Proceedings of a Symposium Held in Buenos Aires, Argentina, 1–4 October 1979
Current methods of evaluating favourability for undiscovered uranium resources are unduly subjective, quite possibly inconsistent and, as a consequence, of questionable reliability. This research is aimed at reducing the subjectivity and increasing the reliability by designing an improved method that depends largely on geological data and their statistical frequency of...
The effect of band loss on estimates of annual survival
Louis J. Nelson, David R. Anderson, Kenneth P. Burnham
1980, Journal of Field Ornithology (51) 30-38
Banding has proven to be a useful technique in the study of population dynamics of avian species. However, band loss has long been recognized as a potential problem, (Hickey, 1952; Ludwig, 1967). Recently, Brownie et al. (1978) presented 14 models based on an array of explicit assumptions for...
Rates of volcanic activity along the southwest rift zone of Mauna Loa volcano, Hawaii
P. W. Lipman
1980, Bulletin Volcanologique (43) 703-725
Flow-by-flow mapping of the 65 km long subaerial part of the southwest rift zone and adjacent flanks of Mauna Loa Volcano, Hawaii, and about 50 new 14C dates on charcoal from beneath these flows permit estimates of rates of lava accumulation and volcanic growth over the past 10 000 years....
Calcite-impregnated defluidization structures in littoral sands of Mono Lake, California
P. Cloud, K. R. Lajoie
1980, Science (210) 1009-1012
Associated locally with well-known tufa mounds and towers of Mono Lake, California, are subvertical, concretionary sand structures through which fresh calcium-containing artesian waters moved up to sites of calcium carbonate precipitation beneath and adjacent to the lake. The structures include closely spaced calcite-impregnated columns, tubes, and other configurations with subcylindrical...
Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the second year of the fifth extension of the USGS-MPMR work agreement : fiscal year 1399/1400 : 1 Rajab 1399-29 Jumad Thani 1400 (27 May 1979-14 May 1980)
U.S. Geological Survey Saudi Arabia Mission
1980, Report
Prepared for Directorate General of Mineral Resources, Ministry of Petroleum and Mineral Resources, Jiddah, Saudi Arabia....
Geochemical evidence for water‐rock interaction along the San Andreas and Garlock Faults of California
James R. O’Neil, Thomas C. Hanks
1980, Journal of Geophysical Research (85) 6286-6292
Mesozoic granitoid rocks adjacent to the San Andreas fault in central California have retained their radiogenic Ar for the last 70 m.y. but have, generally, the highest 18O and H2O+ contents and the lowest D contents of all the granitoid rocks in California. The geographical coincidence of the D, 18O, and H2O+ patterns with...
Grooved terrain on Ganymede
Baerbel K. Lucchitta
1980, Icarus (44) 481-501
The icy crust of Ganymede comprises bright and dark areas. Investigation of Voyager 1 and 2 images has shown that bright terrain is grooved and separates dark polygons of cratered terrain. The grooved terrain contains alternating ridges and grooves in straight and curvilinear sets, which are locally interrupted by smooth...
Surficial deposits, weathering processes, and evolution of an inner Coastal Plain landscape, Augusta, Georgia
Wayne L. Newell, Milan J. Pavich, David C. Prowell, Helaine W. Markewich, Thorton L. Neathery, Robert W. Frey
1980, Book chapter, Excursions in Southeastern geology; Volume II
No abstract available. ...
An improved web-tagging technique for waterfowl
G.Michael Haramis, Allen D. Nice
1980, Journal of Wildlife Management (44) 898-899
No abstract available. ...
A remote-controlled firing device for cannon net traps
David E. Sharp, John T. Lokemoen
1980, Journal of Wildlife Management (44) 896-898
Abstract not available....
Incidence of embedded shot in canvasbacks
Matthew C. Perry, Paul H. Geissler
1980, Journal of Wildlife Management (44) 888-894
No abstract available. ...
Dosing free-living nestling starlings with an organophosphate pesticide, famphur
G.V.N. Powell, D.C. Gray
1980, Journal of Wildlife Management (44) 918-921
No abstract available. ...
Geological studies in an area of induced seismicity at Monticello Reservoir, South Carolina
Donald T. Secor
1980, Open-File Report 81-380
No abstract available....
Basin development along the Late Mesozoic and Cainozoic California Margin: A plate tectonic margin of subduction, oblique subduction and transform tectonics
David G. Howell, James K. Crouch, H. G. Greene, David S. McCulloch, J. G. Vedder
1980, Book chapter, Sedimentation in Oblique-Slip Mobile Zones
Along the Californian margin of the North American plate, the configuration and structural stability of late Mesozoic and Cainozoic basins are related to plate kinematics. Three tectonic regimes are recorded; orthogonal high-angle subduction, oblique low-angle subduction, and transform slip. During the first, regionally extensive forearc basins...
Upper Cretaceous and lower Tertiary geology of the Chattahoochee River valley, western Georgia and eastern Alabama
Juergen Reinhardt, Thomas G. Gibson, Thorton L. Neathery, Robert W. Frey
1980, Book chapter, Excursions in Southeastern geology
No abstract available. ...
Geology and hydrology for environmental planning in Washtenaw County, Michigan
William B. Fleck
1980, Report
Washteaw County is underlain by glacial deposits that range in thickness from about 50 feet to about 450 feet. Underlying the glacial deposits are sedimentary rocks of Mississippian and Devonian age. The youngest of these rocks are the sandstones of the Marshall Formation in the western part of the county; ...
