Autumn staging of cackling Canada geese on the Alaska Peninsula
James S. Sedinger, Karen S. Bollinger
1987, Wildfowl (38) 13-18
Cackling Canada Geese Branta canadensis minima undergo a long (2,800 km) migration between their autumn staging areas on the Alaska Peninsula and wintering areas in Oregon and California. Adults and young lost an average of 543 g during this migratory flight. Weight gains between fledging and autumn migration are essential...
Copulation and mate guarding in the Northern Fulmar
Scott A. Hatch
1987, The Auk (104) 450-461
I studied the timing and frequency of copulation in mated pairs and the occurrence of extra-pair copulation (EPC) among Northern Fulmars (Fulmarus glacialis) for 2 yr. Copulation peaked 24 days before laying, a few days before females departed on a prelaying exodus of about 3 weeks. I estimated that females...
[Book review] The geochronology and evolution of Africa
Frederic H. Wilson
1987, Precambrian Research (36) 181-182
This book was written 'to provide an up-to-date data bank from which those wishing to construct models concerned with the evolution of Africa .... can draw.' As such, it attempts a survey of 'integrated geology and geochronology' of the African continent throughout the Precambrian and into the Phanerozoic. Political and...
Cumulative impacts of oil fields on northern Alaskan landscapes
D.A. Walker, P.J. Webber, Emily F. Binnian, K.R. Everett, N.D. Lederer, E.A. Nordstrand, M.D. Walker
1987, Science (238) 757-761
Proposed further developments on Alaska's Arctic Coastal Plain raise questions about cumulative effects on arctic tundra ecosystems of development of multiple large oil fields. Maps of historical changes to the Prudhoe Bay Oil Field show indirect impacts can lag behind planned developments by many years and the total area eventually...
Did the 1982-1983 El Niño-Southern Oscillation Affect Seabirds in Alaska?
Scott A. Hatch
1987, The Wilson Bulletin (99) 468-474
The causes and effects of the oceanographic and atmospheric phenomena known as El Nino and the Southern Oscillation (ENSO) have been studied intensively in recent years (Cane 1983, Rasmusson and Wallace 1983, Barber and Chave 1983, Cane and Zebiak 1985). ENSOs occur at semiregular intervals of 3-4 years, and the...
FeTi oxide mineralogy and the origin of normal and reverse remanent magnetization in dacitic pumice blocks from Mt. Shasta, California
C.A. Lawson, Gordon L. Nord Jr., D.E. Champion
1987, Physics of the Earth and Planetary Interiors (46) 270-288
Detailed mineralogical analyses and rock magnetic experiments have made it possible to directly identify the FeTi oxide phases responsible for the normal and reverse magnetic components of two dacitic pumice blocks from Mt. Shasta, California. Both samples contain a normal component carried by 100 ??m size multi-domain (MD) titanomagnetite (Usp11-24)....
Adult survival and productivity of Northern Fulmars in Alaska
Scott A. Hatch
1987, The Condor (89) 685-696
The population dynamics of Northern Fulmars (Fulmarus glacialis) were studied at the Semidi Islands in the western Gulf of Alaska. Fulmars occurred in a broad range of color phases, and annual survival was estimated from the return of birds in the rarer plumage classes. A raw estimate of mean annual...
Use of slope, aspect, and elevation maps derived from digital elevation model data in making soil surveys
A. A. Klingebiel, E. H. Horvath, D. G. Moore, W.U. Reybold
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
Maps showing different classes of slope, aspect, and elevation were developed from U.S. Geological Survey digital elevation model data. The classes were displayed on clear Mylar at 1:24 000-scale and registered with topographic maps and orthophotos. The maps were used with aerial photographs, topographic maps, and other resource data to...
Preliminary geologic map of the Butte 1 degree by 2 degrees quadrangle, western Montana
C. A. Wallace, R. G. Schmidt, D. J. Lidke, M. R. Waters, J. E. Elliott, A. B. French, J. W. Whipple, S. E. Zarske, M. J. Blaskowski, B. A. Heise, R. A. Yeoman, J.M. O’Neill, D. A. Lopez, G. D. Robinson, M. R. Klepper
1987, Open-File Report 86-292
No abstract available....
Geology and hydrology of the deep bedrock aquifers in eastern Colorado
S. G. Robson, E. R. Banta
1987, Water-Resources Investigations Report 85-4240
Deep bedrock aquifers are present in rocks of Cretaceous through Pennsylvanian age in eastern Colorado. These aquifers are the Laramie-Fox Hills (the uppermost aquifer studied), Fort Hays-Codell, Dakota-Cheyenne, Entrada-Dockum, Lyons, and Fountain. Structural mapping indicates the aquifers are 2,000 to 9,000 ft below land surface in most of eastern Colorado...
Generalized potentiometric surface of the aquifers in the Cockfield Formation, southeastern Arkansas, spring 1980
D. J. Ackerman
1987, Water-Resources Investigations Report 87-4212
This map shows the generalized contours of the altitude of water levels in wells completed in the Cockfield Formation in southeastern Arkansas for 1980. Most water levels used in constructing the map were made in the spring of 1980. However, in parts of the State water levels from the spring...
Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, southeastern Chester County, Pennsylvania, July and August 1986
John A. Garges
1987, Water-Resources Investigations Report 86-4352
A water table contour map of the lower Paleozoic and Precambrian crystalline rocks of southeastern Chester County, Pennsylvania was constructed on the basis of water levels measured in 261 wells in July and August 1986, elevations of 11 springs that were flowing in July and August 1986, and water levels...
Generalized potentiometric surface of the Sparta-Memphis aquifer, eastern Arkansas, spring 1980
D. J. Ackerman
1987, Water-Resources Investigations Report 87-4282
A map shows generalized contours of the altitude of water levels for wells completed in the Sparta-Memphis aquifer in eastern Arkansas. Most water-level measurements used in constructing the map were from the spring of 1980, but supplemental measurements from other years indicated no long-term change in water levels. Hydrographs for...
Seismicity map of the state of Pennsylvania
C. W. Stover, B.G. Reagor, S. T. Algermissen
1987, Miscellaneous Field Studies Map 1280
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Pennsylvania, even though earthquakes...
Maps showing aeromagnetic intensity, flight altitudes, and generalized aeromagnetic intensity of the Walker Lake 1 degree by 2 degrees Quadrangle, California and Nevada
Donald Plouff
1987, Miscellaneous Field Studies Map 1382-F
No abstract available....
Seismicity map of the state of Florida
B. Glen Reagor, Carl W. Stover, Sylvester Theodore Algermissen
1987, Miscellaneous Field Studies Map 1056
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Florida, even though earthquakes...
Water Resources Data for West Virginia, Water Year 1985
W.N. Embree, E.A. Friel, F.M. Taylor
1987, Water Data Report WV-85-1
Water resources data for the 1985 water year for West Virginia consist of records of stage, discharge, and water quality of streams; contents of reservoirs; and water levels and water quality of observation wells. This report contains discharge records for 75 streamflow-gaging stations; stage only records for 12 gaging stations,...
Considerations for estimation and interpretation of annual growth rates
S. Gutreuter
R.C. Summerfelt, G.E. Hall, editor(s)
1987, Book chapter, Age and growth of fish
Abstract not submitted to date...
Aquifer response to recharge and pumping San Bernardino ground-water basin, California
W. F. Hardt, J. R. Freckleton
1987, Water-Resources Investigations Report 86-4140
No abstract available....
Ground-water resources of the Laura area, Majuro Atoll, Marshall Islands
S. N. Hamlin, S. S. Anthony
1987, Water-Resources Investigations Report 87-4047
The water system that supplies the heavily populated Dalap-Uliga-Darrit (DUD) area of Majuro atoll, Marshall Island, relies almost entirely upon airstrip catchment of rain water. Droughts cause severe water supply problems and water rationing is required, even during periods of normal rainfall. The Laura area contains a substantial lens of...
Heavy-mineral suites confirm the wide extent of the Peach Springs Tuff in California and Arizona, U.S.A.
S. Gusa, J. E. Nielson, K. A. Howard
1987, Journal of Volcanology and Geothermal Research (33) 343-347
[No abstract available]...
Structural reinterpretation of the Ajo mining district, Pima County, Arizona, based on paleomagnetic and geochronologic studies
J.T. Hagstrum, D. P. Cox, R. J. Miller
1987, Economic Geology (82) 1348-1361
The Ajo mining district of southern Arizona is divided into two main structural blocks by the Gibson Arroyo fault. The eastern Camelback Mountain block contains the Late Cretaceous-early Tertiary porphyry copper deposit which has been previously thought to be associated with the displaced apex of a large intrusion exposed by...
Cretaceous age of the upper part of the McCoy Mountains Formation, southeastern California and southwestern Arizona, and its tectonic significance: reconciliation of paleobotanical and paleomagnetic evidence.
P. Stone, V.M. Page, W. Hamilton, K. A. Howard
1987, Geology (15) 561-564
The upper part of the 7-km-thick McCoy Mountains Formation in southeastern California contains fossil angiosperm wood that closely resembles the genus Paraphyllanthoxylon, which is known only from strata of late Early Cretaceous and younger age. This wood, in conjunction with geologic field relations, supports...
ECONOMICS AND THE SEARCH FOR OFFSHORE HEAVY MINERAL DEPOSITS.
E. D. Attanasi, J.H. DeYoung Jr.
1987, Marine Mining (6) 323-337
This paper examines the relative importance, in terms of a deposit's commercial status, of physical characteristics of onshore titanium-bearing heavy-mineral placer deposits, and applies these findings to the search for and evaluation of offshore deposits. Results obtained by applying statistical discriminant analysis show that the characteristics most useful for predicting...
Late Cretaceous and Cenozoic evolution of the New Jersey continental slope and upper rise: an integration of borehole data with seismic reflection profiles
C. Wylie Poag, Gregory S. Mountain
Katie L. Turner, editor(s)
1987, Book chapter, Initial reports of the Deep Sea Drilling Project covering Leg 95 of the cruises of the drilling vessel Glomar Challenger, St. John's, Newfoundland, to Ft. Lauderdale, Florida, August-September 1983
No abstract available....
