Potassium-argon ages of basement rocks from Saint George Island, Alaska
D.M. Hopkins, M.L. Silberman
1978, Journal of Research of the U.S. Geological Survey (6) 435-438
Potassium-argon ages from basement granitic rocks that intrude serpentinized peridotite on St. George Island, Alaska, range from 50 to 57 million years, with an initial argon isochron age. interpreted as a minimum figure, of 52 ± 2 m.y. The age of the granitic rocks and their association with serpentinized peridotite...
Giant glacial grooves at the north end of the Mission Range, Northwest Montana
I. J. Witkind
1978, Journal of Research of the U.S. Geological Survey (6) 425-433
Giant glacial grooves both cut across and wrap around the north end of the Mission Range. Some of these grooves are straight, others crescentic, but all appear to be independent of stratigraphic units and of the gross structure of the range. They were seemingly localized by preexisting stream valleys whose...
A remote controlled system for capturing nesting waterfowl
Charles W. Shaiffer, Gary L. Krapu
1978, Journal of Wildlife Management (42) 668-669
Abstract has not been submitted...
Red fox prey demands and implications to prairie duck production
A.B. Sargeant
1978, Journal of Wildlife Management (42) 520-527
Experiments were conducted during spring and summer with 33 red foxes (Vulpes vulpes) to determine prey demands, feeding characteristics, and growth rates using natural foods. Pups began eating prey the 4th week after birth. Then, prey consumption averaged 1.38 and 1.90 kg/pup/week for weeks 5-8 and 9-12 of the denning...
Interpreting the results of nesting studies
H.W. Miller, Douglas H. Johnson
1978, Journal of Wildlife Management (42) 471-476
Nesting studies are used to assess the production of birds and to evaluate nesting habitats. Most such studies involve finding nests in a given area and subsequently determining the proportion that hatched. Unfortunately, the results are often biased by unrecognized differences in the probabilities of finding successful and unsuccessful nests....
The moon in Heiligenschein
R.L. Wildey
1978, Science (200) 1265-1267
An analysis of 25 photometric digital images of the moon has been carried out to obtain a single image in a new mapping parameter, the Heiligenschein exponent. The data necessarily represent a range of lunar phases, but all are within 10 hours of full moon. The new parameter characterizes the...
Environmental pollutants and eggshell thinning in the black-crowned night heron
H. M. Ohlendorf, Erwin E. Klaas, T. E. Kaiser
Alexander= Sprunt IV, John C. Ogden, Suzanne Winckler, editor(s)
1978, Book chapter, Wading Birds: Resaerch report of the National Audubon Society
No abstract available....
Mapped offset on the right-lateral Kern Canyon fault, southern Sierra Nevada, California
James G. Moore, Edward A. du Bray
1978, Geology (6) 205-208
The north-trending Kern Canyon fault, the longest fault within the southern Sierra Nevada, has been mapped from lat 36°00′N to its northern end near lat 36°40′N. The fault cuts and offsets granitic plutons as young as 80 m.y., but despite the fact that many recent earthquake foci plot close to...
Estimating pore and cement volumes in thin section
R. B. Halley
1978, Journal of Sedimentary Petrology (48) 642-650
Point count estimates of pore, grain and cement volumes from thin sections are inaccurate, often by more than 100 percent, even though they may be surprisingly precise (reproducibility + or - 3 percent). Errors are produced by: 1) inclusion of submicroscopic pore space within solid volume and 2) edge effects...
Digital image analysis techniques required for natural resource inventories
Wayne G. Rohde
1978, Conference Paper, International workshop on managing requirements knowledge
No abstract available....
Estimation of the size of a closed population when capture probabilities vary among animals
K.P. Burnham, W.S. Overton
1978, Biometrika (65) 625-633
A model which allows capture probabilities to vary by individuals is introduced for multiple recapture studies n closed populations. The set of individual capture probabilities is modelled as a random sample from an arbitrary probability distribution over the unit interval. We show that the capture frequencies are a sufficient statistic....
The role of the U.S. Geological Survey in the lithium industry
James D. Vine
1978, Energy (3) 299-304
The U.S. Geological Survey has responsibility in the U.S. Department of the Interior to assess the nation's energy and mineral resources. The evaluation of reserves and resources of a commodity such as lithium should be a continuing process in the light of advancing technology and ever-growing knowledge of its...
Lithium-bearing rocks of the Horse Spring Formation, Clark County, Nevada
Elizabeth F. Brenner-Tourtelot, Richard K. Glanzman
1978, Energy (3) 255-262
The Horse Spring Formation of Miocene age in Clark County, Nevada, contains as much as 0.5% Li in individual samples. Rock sequences which average 0.1% Li range from 3 m thick near Gold Butte (south of Mesquite, Nev.) to as much as 40 m thick near Lava Butte (east...
Lithium, a preliminary survey of its mineral occurrence in flint clay and related rock types in the United States
Harry A. Tourtelot, Elizabeth F. Brenner-Tourtelot
1978, Energy (3) 263-272
Maximum concentrations of lithium found in samples of flint clay and associated rocks of Pennsylvanian age in different States, in parts per million (ppm), are: Missouri, 5100; Pennsylvania-Maryland, 2100; Kentucky, 890; Ohio, 660; Alabama, 750; and Illinois, 160. Lithium-bearing kaolin deposits are distributed in the Coastal Plain province from...
Paleomagnetic results from the Lassiter Coast, Antarctica, and a test for oroclinal bending of the Antarctic Peninsula
Karl S. Kellogg, Richard L. Reynolds
1978, Journal of Geophysical Research B: Solid Earth (83) 2293-2299
Paleomagnetic results from 17 magnetically stable units of Upper Cretaceous (‘Andean’) plutons and dikes of the Lassiter Coast, on the southern Antarctic Peninsula, define a mean paleomagnetic pole at 87°S, 131°W (α95 = 11.5°). This indicates that little latitudinal movement of the southern Antarctic Peninsula has occurred during the past 100...
An evaluation of errors in mapping land use changes for the Central Atlantic Regional Ecological Test Site
Katherine Fitzpatrick-Lins
1978, Journal of Research of the U.S. Geological Survey (6) 339-346
Land use change maps prepared from high-resolution, high-altitude aerial photographs for the period 1970 to 1972 of the CARETS (Central Atlantic Regional Ecological Test Site) project were analyzed for accuracy. To test for errors of commission, all outlined areas (polygons) of land use change on five l:100000-scale maps were examined...
Studies of hydroxyaluminum complexes in aqueous solution
J. L. Bersillon, D. W. Brown, Francois Fiessinger, J. D. Hem
1978, Journal of Research of the U.S. Geological Survey (6) 325-337
The coagulating ability of partly neutralized AlCl3 solutions used in water treatment depends on their basicity, expressed here as the ratio NaOH/AlC3. This work presents an identification of the aluminum species active in the coagulation process. The results give rise to an interpretative model which is consistent with those models...
Iron in water near wastewater lagoons in Yellowstone National Park, Wyoming
Edward Riley Cox
1978, Journal of Research of the U.S. Geological Survey (6) 319-324
High dissolved-iron concentrations have been noted in water in wells used to monitor effluent that percolates from wastewater disposal lagoons near Old Faithful in Yellowstone National Park. The concentration of dissolved iron in water in a well increased from 80 μg/L (micrograms per liter) before a nearby lagoon was .used...
Relationship between hydrology and bottomland vegetation in the Ozark Mountains of Missouri
E. J. Harvey, John Skelton
1978, Journal of Research of the U.S. Geological Survey (6) 299-305
The identification of plants and plant assemblages that are common to stream reaches that gain water and those that do not is an important key in the study of limestone hydrology. In the Ozark Mountains of Missouri, a rapid change from a stream-channel growth of abundant willows (Salix spp.), touch-me-nots...
Targeting exploration for nickel laterites in Indonesia with Landsat data
J. V. Taranik, C. D. Reynolds, C. A. Sheehan, W. D. Carter
1978, Conference Paper, Proceedings of the 12th International Symposium on Remote Sensing of Environment
No abstract available....
Improving land cover classification by image stratification of Landsat data
W. G. Rohde
1978, Conference Paper, Proceedings of the 12th International Symposium on Remote Sensing of Environment
No abstract available....
Infiltration from tributary streams in the Susquehanna River basin, New York
Allan D. Randall
1978, Journal of Research of the U.S. Geological Survey (6) 285-297
As tributary streams in the Susquehanna River basin leave narrow upland valleys and enter larger valleys floored with permeable stratified glacial drift, they lose water by infiltration through streambeds. The infiltration rate is generally slow near the point of entering a larger valley, but farther downstream it is much faster...
An example of the merging of Landsat, topographic, and aeromagnetic data in a geologic and hydrologic study of a karst region — Claunch, New Mexico
W. A. Fischer, Donald G. Orr, D. D. Greenlee
1978, Conference Paper, Proceedings of the twelfth International Symposium on Remote Sensing of Environment
No abstract available....
Chemistry of Tertiary volcanic rocks in the Eldorado Mountains, Clark County, Nevada, and comparisons with rocks from some nearby areas
R. Ernest Anderson
1978, Journal of Research of the U.S. Geological Survey (6) 409-424
Chemical variations of 27 rocks that erupted from in and near the Eldorado Mountains, southern Nevada, show (1) fair to good correlation suggestive of a cogenetic suite, (2) a range of uncorrected silica values from about 48 to 74 weight percent with no strong tendency toward bimodality, (3) a calc-alkaline...
Pleistocene history of volcanism and the Owens River near Little Lake, California
Wendell A. Duffield, George I. Smith
1978, Journal of Research of the U.S. Geological Survey (6) 395-408
During pluvial periods of the Pleistocene and Holocene, a large river flowed south from Owens Lake to China Lake between the Sierra Nevada and the Coso Range. The most recent channel, dry during historic time, is clearly marked by cliffs and falls. An older, now-abandoned part of the channel beneath...
