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Page 5615, results 140351 - 140375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Earthquakes, November-December, 1979
W. J. Person
1980, Earthquake Information Bulletin (USGS) (12) 113-116
The last 2 months of the year were quite active, seismically speaking. Damaging earthquakes were expereinced in Indonesia, including Java, Sumatra, and Bali, and in Greece, Iran, and the Fiji Islands. Colombia expereinced two earthquakes; the most destructive was a magnitude 7.9 on December 12 that killed 600 people. In the...
Viral erythrocytic necrosis: Some physiological consequences of infection in chum salmon (Oncorhynchus keta)
John R. MacMillan, Daniel M. Mulcahy, Marsha L. Landolt
1980, Canadian Journal of Fisheries and Aquatic Sciences (37) 799-804
Erythroid cells in chum salmon (Oncorhynchus keta) susceptible to infection with erythrocytic necrosis virus (ENV) were examined by light and electron microscopy. Cells of stages II, III, IV, V, and VI contained complete eyrthrocytic necrosis virions in the cytoplasm. Viruses closely resembling ENV were also detected in the nuclei of...
Water quality of Tampa Bay, Florida, June 1972 - May 1976
Carole L. Goetz, Carl R. Goodwin
1980, Water-Resources Investigations Report 80-12
A comprehensive assessment of the water quality of Tampa Bay, Florida, was initiated in 1970 to provide background information to evaluate the effects of widening and deepening the ship channel to the port of Tampa. This report provides results of water-quality sampling in the bay from 1972 to 1976, prior...
Myvatn volcanism
C. Allen, B. Bryan, R. Greeley, J. Murray, H. Sigurdsson, S. Thorarinsson, J. L. Whitford-Stark, R. Williams, C. Wood
1980, Volcano News (3) 1-8
No abstract available....
Food of alewives, yellow perch, spottail shiners, trout-perch, and slimy and fourhorn sculpins in southeastern Lake Michigan
LaRue Wells
1980, Report
Stomachs of 1, 064 alewives (Alosa pseudoharengus), 1, 103 yellow perch (Perca flavescens), 246 spottail shiners (Notropis hudsonius), 288 trout-perch (Percopsis omiscomaycus), 454 slimy sculpins (Cottus cognatus), and 562 fourhorn sculpins (Myoxocephalus quadricornis) from Lake Michigan were examined for food contents. Fish were sampled primarily from March to November and...
Geoscientists for international development
David A. Hastings
1980, The British Geologist (6) 104-106
Professional societies are usually concerned with the advancement of scientific knowledge, but a relative newcomer to the international scene has a different focus - geoscience development in the Third World. David Hastings, a member of AGID, explains....
Travel time variation on backcountry trails
J. W. van Wagtendonk, J.M. Benedict
1980, Journal of Leisure Research (12) 99-106
Numerous interrelated factors influence the travel times of hikers and riders on backcountry trails. This study sought to quantify those factors which were thought to be most important in affecting trail speeds. The travel times of 897 backpacking parties, 634 day hiking parties, and 111 riding parties were obtained from...
Wilderness permit compliance and validity
J. W. van Wagtendonk, J.M. Benedict
1980, Journal of Forestry (78) 399-401
In Yosemite National Park, 92 percent of the parties using back country areas had permits. Parties without permits were smaller in size and stayed for shorter periods of time. For all parties with permits, 62 percent made changes to their trips. Parties changing their trips in both time and...
Petrology of Hualalai volcano, Hawaii: Implication for mantle composition
D.A. Clague, E.D. Jackson, T. L. Wright
1980, Bulletin Volcanologique (43) 641-656
Hualalai is one of five volcanoes whose eruptions built the island of Hawaii. The historic 1800-1801 flows and the analyzed prehistoric flows exposed at the surface are alkalic basalts except for a trachyte cone and flow at Puu Waawaa and a trachyte maar deposit near Waha Pele. The 1800-1801 eruption...
Nest site and colony characteristics of wading birds in selected Atlantic Coast colonies
Donald L. Beaver, Ronald G. Osborn, Thomas W. Custer
1980, The Wilson Bulletin (92) 200-220
Nests of 5 species of wading birds were identified and marked during the breeding season at 6 locations from Massachusetts to North Carolina. At the end of the breeding season 12 characteristics of nest-site location were measured. Nest locations were mapped to examine dispersion and nearest neighbor relationships. Multivariate analyses...
Applications of statistics to thematic mapping.
G.H. Rosenfield, M.L. Melley
1980, Photogrammetric Engineering and Remote Sensing (46) 1287-1294
Two statistical problems occurring in the effort to analyze thematic maps and mapping are determining the accuracy of thematic content and comparing factors studied in thematic mapping. Statistical procedures applicable to thematic mapping involve sampling, determining accuracy, and comparing factors. A sampling procedure using an unaligned pattern within a square...
Compositional controls on spinel clouding and garnet formation in plagioclase of olivine metagabbros, Adirondack Mountains, New York
J. M. McLelland, P.R. Whitney
1980, Contributions to Mineralogy and Petrology (73) 243-251
Olivine metagabbros from the Adirondacks usually contain both clear and spinel-clouded plagioclase, as well as garnet. The latter occurs primarily as the outer rim of coronas surrounding olivine and pyroxene, and less commonly as lamellae or isolated grains within plagioclase. The formation of garnet and metamorphic spinel is dependent upon...