Small landslide types and controls in glacial deposits: Lower Skagit river drainage, northern cascade range, Washington
P.L. Heller
1981, Environmental Geology (3) 221-228
Observations of 167 small, shallow landslides spanning a 22-year period on extensively logged slopes of Quaternary terraces in the lower Skagit and Baker Valleys, Washington, shows that there is a relationship between the common slope failures in this area and the slope angle, stratigraphy, and logging practices. Landslide frequency increases...
Statistics in Oklahoma's petroleum industry, 1980 ( USA).
M.L. Prater
1981, Oklahoma Geology Notes (41) 196-208
Using graphs and tables, outlines statistics for oil and gas drilling activity in the state, for discovery and production levels, established reserve quantities, and the market value of hydrocarbons.-L.Martin...
Analysis of variance of thematic mapping experiment data.
G.H. Rosenfield
1981, Photogrammetric Engineering and Remote Sensing (47) 1685-1692
As an example of the methodology, data from an experiment using three scales of land-use and land-cover mapping have been analyzed. The binomial proportions of correct interpretations have been analyzed untransformed and transformed by both the arcsine and the logit transformations. A weighted analysis of variance adjustment has been used....
Issue in pollution control: interplant cost differences and economies of scale.
R.W. Pittman
1981, Land Economics (57) 1-17
Seeks evidence concerning the issues of the relative efficiencies of different institutional arrangements for pollution control and the implications of control requirements for economies of scale and barriers to entry. Data is derived from the estimation of a production function for 30 pulp and paper mills in Wisconsin and Michigan....
Increasing the availability of national mapping products.
J.I. Roney, B.C. Ogilvie
1981, Information Bulletin, Western Association of Map Libraries (12) 133-143
A discussion of the means employed by the US Geological Survey to facilitate map usage, covering aspects of project Map Accessibility Program including special rolled and folded map packaging, new market testing, parks and campgrounds program, expanded map dealer program, new booklet-type State sales index and catalog and new USGS...
Multiple-element semiquantitative analysis of one-milligram geochemical samples by D.C. arc emission spectrography
N. Rait
1981, Chemical Geology (32) 317-333
A modified method is described for a 1-mg sample multi-element semiquantitative spectrographic analysis. This method uses a direct-current arc source, carbon instead of graphite electrodes, and an 80% argon-20% oxygen atmosphere instead of air. Although this is a destructive method, an analysis can be made for 68 elements in all...
Etna erupts again; a VEST report of the March 1981 eruption of Mount Etna, Sicily
J. E. Guest, C.R.J. Kilburn, R. M. C. Lopes, J.B. Murray, H. Pinkerton, T.J.O Sanderson, S.C. Scott
1981, Earthquake Information Bulletin (USGS) (13) 134-139
The relationship of geophysical measurements to hydraulic conductivity at the Brantley damsite, New Mexico
U. Schimschal
1981, Geoexploration (19) 115-125
The objective of this study was to develop techniques to correlate hydraulic conductivity tests with geophysical logs. In addition, the relationships obtained from boreholes were correlated to surface resistivity soundings in an effort to define areas of potential high water loss at the proposed site for Brantley Dam.Hydraulic conductivity obtained...
A visit to Tangshan, China
J.M. Gere, H.C. Shah
1981, Earthquake Information Bulletin (USGS) (13) 4-11
Plate-tectonic mechanism of Laramide deformation.
W. Hamilton
1981, Contributions to Geology - University of Wyoming, Laramie (19) 87-92
The Laramide compressive deformation of the craton was caused by a clockwise rotation of about 2-4o of the Colorado Plateau region relative to the continental interior, during late Late Cretaceous and early Tertiary time. Late Paleozoic and Neogene deformation of the craton also were produced by motion of a southwestern...
Chemical modifications accompanying blueschist facies metamorphism of Franciscan conglomerates, Diablo Range, California
Diane E. Moore, J. G. Liou, B.-S. King
1981, Chemical Geology (33) 237-263
As part of an investigation of blueschist-facies mineral parageneses in pebbles and matrix of some Franciscan metaconglomerates of the Diablo Range, California, textural and major-element chemical analyses were conducted on a number of igneous pebbles that comprise a range of rock types from granite and dacite to gabbro and basalt....
An overview of the National Wildlife Health Laboratory after 6 years
Lynne M. Siegfried, Milton Friend
1981, Conference Paper, Proceedings of the twenty-fourth annual meeting of the American Association of Veterinary Laboratory Diagnosticians
No abstract available....
News from the observatories; the Royal Observatory, Hong Kong
G. Bell
1981, Earthquake Information Bulletin (USGS) (13) 145-149
Mercury in the muscle tissue of fish from three northern Maine lakes
J.J. Akielaszek, T.A. Haines
1981, Bulletin of Environmental Contamination and Toxicology (27) 201-208
There is evidence that fish in Canadian wilderness areas exhibit elevated mercury levels because of the oligotrophic nature of the lakes they inhabit (BROUZES et al. 1977). D'ITRI et al. (1971) reported higher levels of mercury in trout from oligotrophic waters than in trout from eutrophic waters in unpolluted areas....
Munsell color value as related to organic carbon in Devonian shale of Appalachian basin
John W. Hosterman, Sallie I. Whitlow
1981, American Association of Petroleum Geologists Bulletin (65) 333-335
Comparison of Munsell color value with organic carbon content of 880 samples from 50 drill holes in the Appalachian basin shows that a power curve is the best fit for the data. A color value below 3 to 3.5 indicates the presence of organic carbon but is meaningless in determining...
Stratigraphic and economic significance of Mississippian sequence at North Georgetown Canyon, Idaho
W.J. Sando, Charles Sandberg, R.C. Gutschick
1981, American Association of Petroleum Geologists Bulletin (65) 1433-1443
The Mississippian sequence exposed at North Georgetown Canyon, Idaho is newly recognised as a facies belt, which adds to knowledge of Mississippian stratigraphy and petroleum geology in the Overthrust belt of Idaho, Wyoming, and Utah. In the newly recognized facies belt in the Aspen Range, the Madison Group is represented...
Interpretation of changes in water level accompanying fault creep and implications for earthquake prediction
R. L. Wesson
1981, Journal of Geophysical Research Solid Earth (86) 9259-9267
Quantitative calculations for the effect of a fault creep event on observations of changes in water level in wells provide an approach to the tectonic interpretation of these phenomena. For the pore pressure field associated with an idealized creep event having an exponential displacement versus time curve, an analytic expression...
Morphology and processes associated with the accumulation of the fine-grained sediment deposit on the southern New England shelf
David C. Twichell, Charles E. McClennen, Bradford Butman
1981, Journal of Sedimentary Petrology (51) 269-280
A 13,000 km2 area of the southern New England Continental Shelf which is covered by anomalously fine-grained sediment has been surveyed by means of high-resolution, seismic-reflection and side-scan sonar techniques to map its morphology and structure, and a near-bottom instrument system contributed to understanding present activity of the deposit. Seismic-reflection...
Economics and coal resource appraisal: strippable coal in the Illinois Basin ( USA)
E. D. Attanasi, E.K. Green
1981, Southern Economic Journal (47) 742-752
Coal-resource appraisals generally describe the location and general characteristics of coal beds. Estimates are made of the average overburden depth (depth of the coal bed below the surface), bed thickness, and perhaps certain chemical properties of the coal [1]. Although such resource compilations represent an important initial step, neither they...
Depositional environments of the Pennsylvanian Pottsville Formation in the Black Warrior basin of Alabama
C.A. Horsey
1981, Journal of Sedimentary Petrology (51) 799-806
The Pennsylvanian Pottsville Formation of the Black Warrior basin in Alabama comprises as much as 3000 m of shale, sandstone, and coal. The boundary between the informal units of the lower Pottsville and the upper Pottsville is the base of the Black Creek...
Naturally occurring and experimentally induced castor bean (Ricinus communis) poisoning in ducks
Wayne I. Jensen, J.P. Allen
1981, Avian Diseases (25) 184-194
Castor bean (Ricinus communis) poisoning accounted for the death of several thousand ducks in the Texas panhandle in the fall and winter months of 1969-1971.Signs of intoxication resembled those of botulism, except for mucoid, blood-tinged excreta. The most common lesions were severe fatty change in the liver, widely distributed internal...
Whooping crane preyed upon by golden eagle
Ronald M. Windingstad, Harry E. Stiles, Roderick C. Drewien
1981, The Auk (98) 393-394
The Golden Eagle (Aquila chrysaetos) is the largest predatory bird in North America and is well known for its predatory abilities. Attacks have been reported on mammals such as whitetail jackrabbits (Lepus townsendi) (McGahan 1967, J. Wildl. Mgmt. 31: 496), pronghorn antelope (Antilocapra americana) (Bruhns 1970, Can. Field-Natur. 84: 301),...
Evaluation of coproexamination as a diagnostic test for avian botulism
Wayne I. Jensen
1981, Journal of Wildlife Diseases (17) 171-176
Fecal extracts and blood sera from 113 ducks showing clinical signs of botulism were examined for Clostridium botulinum type C toxin by means of the mouse toxicity test to evaluate coproexamination as a diagnostic procedure, as compared with demonstration of toxin in serum. When death of test mice unprotected with type...
Distribution and petrology of the Anderson-Coyote Reservoir volcanic rocks
John K. Nakata
1981, Open-File Report 80-1256
No abstract available....
Designation of principal water-supply aquifers in Minnesota
D. G. Adolphson, J. F. Ruhl, R. J. Wolf
1981, Water-Resources Investigations Report 81-51
Fourteen aquifers, ranging from Quaternary to Precambrian in age, have been identified as the principal sources of water to wells in Minnesota. Half the municipal population anc nearly all the rural population depend on water from these aquifers. Buried and surficial sand and gravel aquifers of Quaternary age occur in...
