Wigeongrass (Ruppia maritima): a literature review
Harold A. Kantrud
1991, Fish and Wildlife Research 10
Wigeongrass (Ruppia maritima L.) is a submersed macrophyte of nearly cosmopolitan distribution and worldwide importance as a waterfowl food. Unfortunately, the plant no longer inhabits vast areas disturbed by human activities. Taxonomic status of the plant is uncertain, especially in North America. In mild climates, in habitats subject to environmental...
Mortality in tundra swans Cygnus columbianus
James C. Bartonek, J.R. Serie, K. A. Converse
1991, Wildfowl (42) 356-358
Our paper identifies and examines the significance of hunting and non-hunting mortality affecting the Eastern Population (EP) and Western Population (WP) (see Serie & Bartonek 1991a) of Tundra Swans. Sport hunting (Serie & Bartonek 1991b), native subsistence hunting (Copp 1989, Stewart & Bernier 1989), malicious shooting (McKelvey & MacNeill 1981),...
Distribution patterns of individually identifiable West Indian manatees (Trichechus manatus) in Florida
J.P. Reid, G. B. Rathbun, J.R. Wilcox
1991, Marine Mammal Science (7) 180-190
Photographs of distinctively scarred manatees (Trichechus manatus) were taken at aggregation sites throughout Florida and assembled into a catalog for identifying individuals. Resightings of known manatees in different years or at different locations enabled us to document site fidelity and long-distance movements. Of the 891 individuals included in the catalog...
Crustal structure of the western New England Appalachians and the Adirondack Mountains
S. Hughes, J.H. Leutgert
1991, Journal of Geophysical Research (96)
Presents an interpretation of the crustal velocity structure based on a seismic refraction/wide-angle reflection experiment in eastern North America extending from the Adirondacks in New York State through the northern Appalachians in Vermont and New Hampshire to central Maine. Modeling of the eastern portion of the profile within the New...
Late Cretaceous and early Tertiary plutonism and deformation in the Skagit Gneiss Complex, north Cascade Range, Washington and British Columbia
R. A. Haugerud, P. Van Der Heyden, R. W. Tabor, J. S. Stacey, R. E. Zartman
1991, Geological Society of America Bulletin (103) 1297-1307
The Skagit Gneiss Complex forms a more-or-less continuous terrane within the northern, more deeply eroded part of the North Cascade Range. The complex comprises abundant plutons intruded at mid-crustal depths into a variety of metamorphosed supracrustal rocks of both oceanic and volcanic-arc origin. A plethora of syntectonic pegmatite, small plutons,...
Wasatch fault zone, Utah - segmentation and history of Holocene earthquakes
Michael N. Machette, Stephen F. Personius, Alan R. Nelson, David P. Schwartz, William R. Lund
1991, Journal of Structural Geology (13) 151-164
The Wasatch fault zone (WFZ) forms the eastern boundary of the Basin and Range province and is the longest continuous, active normal fault (343 km) in the United States. It underlies an urban corridor of 1.6 million people (80% of Utah's population) representing the largest earthquake risk in the interior...
Soil chronosequence studies in temperate to subtropical, low-latitude, low-relief terrain with data from the eastern United States
H. W. Markewich, M.J. Pavich
1991, Geoderma (51) 213-239
The Coastal Plain of the eastern United States is a low-latitude, low-altitude, low-relief terrain composed primarily of gently dipping marine and marginal-marine sediments that range in age from Cretaceous to Quaternary. Population density of the area is moderate, and most of the population is concentrated along the coast. Inland of...
The southeastern Illinois earthquake of 10 June 1987: The later aftershocks
C.J. Langer, G. A. Bollinger
1991, Bulletin of the Seismological Society of America (81) 423-445
The 10 June 1987 southeastern Illinois earthquake (mbLg = 5.2) was the seventh in a series of moderate magnitude (≧ 4.5) MMI VII shocks to occur in the Wabash Valley seismic zone of southeastern Illinois and southwestern Indiana since 1891. Located about 200 km east of St. Louis, Missouri, the...
Submarine processes of the middle Atlantic continental rise based on GLORIA imagery
J. S. Schlee, James M. Robb
1991, Geological Society of America Bulletin (103) 1090-1103
Approximately 6100 km of 3.5-kHz echo-sounding profiles was correlated with a GLORIA side-scan sonar image of the mid-Atlantic United States (34??N, 70??W) lower slope-upper continental rise. The image allows us to map the major erosional and depositional features and to identify major processes that have shaped the area. Interpretation of...
Sedimentology and cyclicity in the Lower Permian De Chelly Sandstone on the Defiance Plateau: Eastern Arizona
J. D. Stanesco
1991, Mountain Geologist (28) 1-11
The Lower Permian (Leonardian) De Chelly Sandstone crops out along a north-south trend on the Defiance Plateau of eastern Arizona. It is divided into lower and upper members separated by a tongue of the Supai Formation that pinches out to the north.Lithofacies in the De Chelly Sandstone consist of (1)...
A northern Cordilleran ocean-continent transect: Sitka Sound, Alaska, to Atlin Lake, British Columbia
D. A. Brew, Susan M. Karl, D.F. Barnes, R.C. Jachens, A. B. Ford, R. Horner
1991, Canadian Journal of Earth Sciences (28) 840-853
The 155 km wide, 310 km long Sitka Sound – Atlin Lake continent–ocean transect includes almost all the geologic, geophysical, and geotectonic elements of the Canadian Cordillera. It crosses the Chugach, Wrangellia, Alexander, Stikine, and Cache Creek terranes, the Gravina and Laberge overlap assemblages, intrusive and metamorphic belts, and neotectonic faults that...
Anomalous folds associated with the east-central part of the Garlock Fault, southeast California
G.I. Smith
1991, Geological Society of America Bulletin (103) 615-624
The east-central part of the left-lateral Garlock fault, in southeast California, is associated with three broad folds that trend and plunge northeast. The folds, which lie north, south, and astride the fault, postdate deposition of alluvial gravels that at one time formed a continuous northwest-sloping fan; the gravels rest conformably...
Mid-continent earthquake zones; lessons from New Madrid, Missouri
B. J. Mitchell
1991, Earthquakes & Volcanoes (USGS) (22) 120-123
Many seismically active regions occur throughout the world as concentrated zones surrounded by the relatively stable crust of shields or platforms. Examples occur in central and eastern North America, northeastern Brazil, Australia, Norway, Svalbard, Greenland, and other places. Some of these zones, such as those at New Madrid, Missouri, and...
Effect of anisotropy on ground-water dis charge to streams in fractured Mesozoic-basin rocks
J. C. Lewis
1991, Book chapter, Aquifers of the southern and eastern states
No abstract available ...
Water-resources potential of the freshwater lens at Key West, Florida
D.J. McKenzie
1990, Water-Resources Investigations Report 90-4115
The island of Key West lies at the end of the Florida Keys, about 150 miles southwest of Miami. The public-water supply for the island is provided by the Florida Keys Aqueduct Authority Well Field near Miami. However, there are many privately owned wells on the island that tap the...
Economic implications of petroleum field size distributions
Emil D. Attanasi, Lawrence J. Drew
1990, Energy Exploration & Exploitation (8) 245-257
The unprecedented natural gas price increases in the late 1970's and early 1980's allowed a glimpse of part of the in-situ distribution of natural gas fields that had been hidden by economic truncation. Analysis of those discoveries shows the distribution to be characterized by progressively larger numbers of fields as...
Base of moderately saline ground water in San Juan County, Utah
Lewis Howells
1990, Technical Publication 94
The base of moderately saline ground water (water that contains from 3,000 to 10,000 milligrams per liter of dissolved solids) was delineated for San Juan County, Utah, based on water-quality data and on formation-water resistivities determined from geophysical well logs using the resistivity-porosity, spontaneous-potential, and resistivity-ratio methods. These data and...
Ground-water resources and simulated effects of withdrawals in the East Shore area of Great Salt Lake, Utah
David W. Clark, Cynthia L. Appel, Patrick M. Lambert, Robert L. Puryear
1990, Technical Publication 93
The ground-water resources in the East Shore area of Great Salt Lake, Utah, were studied to better define the ground-water system; to document changes in ground-water levels, quality, and storage; and to simulate effects of an increase in ground-water withdrawals. The East Shore aquifer system is in basin-fill deposits, and...
Surveying woodland raptors by broadcast of conspecific vocalizations
J. A. Mosher, M.R. Fuller, M. Kopeny
1990, Journal of Field Ornithology (61) 453-461
We surveyed for raptors in forests on study areas in five of the eastern United States. For Cooper's Hawks (Accipiter cooperi), Red-shouldered Hawks (Buteo lineatus), and Barred Owls (Strix varia) the contact rates obtained by broadcasting taped vocalizations of conspecifics along roads were significantly greater than contact rates obtained by...
[Book review] Ospreys: A natural and unnatural history
Charles J. Henny
1990, The Auk (107) 808-809
The Osprey (Pandion haliaetus) is now arguably the world's best known bird of prey. The DDT-related Osprey population crash in the northeastern United States resulted in an unparalleled amount of research during the last 20 years. In 1969, when I published my first paper on Ospreys in The Auk, there...
Owls
D.G. Smith, D. H. Ellis, B.A. Millsap
Beth Giron Pendleton, editor(s)
1990, Book chapter, Proceedings of the Southeast Raptor Management Symposium and Workshop.
Eight species of owls regularly occur and may breed in one or more of the southeastern states. Several additional northern or western species appear irregularly as accidentals or during years of southward incursions. In the Southeast, the most common and wide- spread owls are the common barn-owl, eastern screech-owl, great...
The Loma Prieta earthquake of October 17, 1989 : a brief geologic view of what caused the Loma Prieta earthquake and implications for future California earthquakes: What happened ... what is expected ... what can be done.
Peter L. Ward, Robert A. Page
1990, Report
The San Andreas fault, in California, is the primary boundary between the North American plate and the Pacific plate. Land west of the fault has been moving northwestward relative to land on the east at an average rate of 2 inches per year for millions of years. This motion is...
Role of heat and detachment in continental extension as viewed from the eastern basin and range province in Arizona
Ivo Lucchitta
1990, Tectonophysics (174) 77-114
The Bill Williams River area of west-central Arizona includes not only the Rawhide-Buckskin metamorphic core complex, which is part of the lower Colorado River highly extended terrane (HET), but also the boundary between the extended terranes of the Basin and Range Province and the less deformed Arizona Transition Zone/Colorado Plateau....
Map showing distribution of barium in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah
William R. Miller, Jerry M. Motooka, John B. McHugh
1990, Miscellaneous Field Studies Map 2138-A
This map of the Richfield 1° x 2° quadrangle shows the regional distribution of barium in the less-than-0.180-mm (minus-80-mesh) fraction of stream sediments. It is part of a folio of maps of the Richfield 1° x 2° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other published...
Map showing the distribution of zinc in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah
William R. Miller, Jerry M. Motooka, John B. McHugh
1990, Miscellaneous Field Studies Map 2138-K
This map of the Richfield 1° x 2° quadrangle, Utah, shows the regional distribution of zinc in the less-than-0.180-mm (minus-80-mesh) fraction of stream-sediments. It is part of a folio of maps of the Richfield 1° x 2° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other published...
