Organic geochemistry on Leg 104
Keith A. Kvenvolden, T.J. McDonald
1989, Proceedings of the Ocean Drilling Program: Scientific Results (104) 291-307
The Leg 104 organic geochemistry program consisted of monitoring (a) hydrocarbon gases, (b) organic and inorganic carbon, and (c) parameters resulting from Rock-Eval pyrolysis at three sites on the Vdring Plateau. The results amplify some of those obtained earlier on Deep Sea Drilling Project (DSDP) Leg 38. In a regional...
Spatial, seasonal and diel distribution of fishes in a California reservoir dominated by native fishes
Bruce C. Vondracek, Donald M. Baltz, Larry R. Brown, Peter B. Moyle
1989, Fisheries Research (7) 31-53
During 21 months of sampling with various techniques, we captured 24 species of fish in Britton Reservoir. Nine species comprised over 96% of the number of fish captured and approximately 88% of the biomass. Five native non-game species accounted for over 77% of the catches.The native non-game fishes have maintained...
Relation of ground-water flow in bedrock aquifers and the Mississippi and Minnesota Rivers, Minneapolis and St. Paul area, Minnesota
M. E. Schoenberg
1989, Open-File Report 89-268
No abstract available....
Irrigation-induced contamination--How real a problem
Jonathan P. Deason
1989, Journal on Irrigation Drainage Engineering (115)
The U.S. Department of the Interior has embarked on a series of reconnaissance‐level investigations throughout the western states to identify, evaluate, and respond to irrigation‐induced water quality problems. A series of water, sediment, and biological samples are being analyzed for 17 inorganic constituents and a number of pesticides. 19 studies...
Hydrogeologic characteristics of the lower Río Grande de Arecibo alluvial valley
Vicente Quinones-Aponte
1989, Conference Paper, Proceedings of the 13th Natural Resources Symposium
Design considerations for monitoring land birds in Channel Islands National Park
M. K. Sogge, Charles van Riper III, C.A. Drost
1989, Book, 1989 Transactions of the Western Section of the Wildlife Society
No abstract available....
Rhenium-osmium isotope systematics of carbonaceous chondrites
R.J. Walker, J. W. Morgan
1989, Science (243) 519-522
Rhenium and osmium concentrations and Os isotopic compositions of eight carbonaceous chondrites, one LL3 ordinary chondrite, and two iron meteorites were determined by resonance ionization mass spectrometry. Iron meteorite 187Re/186Os and 187Os/186Os ratios plot on the previously determined iron meteorite isochron, but most chondrite data plot 1 to 2 percent above this...
Geochemical evidence for invasion of Kilauea's plumbing system by Mauna Loa magma
J.M. Rhodes, K.P. Wenz, C.A. Neal, J. W. Sparks, J. P. Lockwood
1989, Nature (337) 257-260
From the beginning of the study of Hawaiian volcanism there has been controversy over possible relationships between the neighbouring active volcanoes Mauna Loa and Kilauea1–5. Seismic activity, thought to reflect upward migration of magma, reveals that the magmatic plumbing systems apparently converge at depth to form a broad funnel within...
Dual flow habitat model: a new method for evaluating high flows, low flows, and ramping rates on the Salmon River, New York
Robert T. Milhous
1989, Book, Proceedings of the HARZA instream flow workshop, IFIM symposium
No abstract available....
Geochemical expression of early diagenesis in middle Eocene-lower Oligocene pelagic sediments in the southern Labrador Sea, Site 647, ODP Leg 105
M.A. Arthur, Walter E. Dean, J.C. Zachos, M. Kaminski, S. Hagerty Rieg, K. Elmstrom
1989, Proceedings of the Ocean Drilling Program: Scientific Results (105) 111-135
Geochemical analyses of the middle Eocene through lower Oligocene lithologic Unit IIIC (260-518 meters below sea floor [mbsf]) indicate a relatively constant geochemical composition of the detrital fraction throughout this depositional interval at Ocean Drilling Program (ODP) Site 647 in the southern Labrador Sea. The main variability occurs in redox-sensitive...
Geochemical and paleoenvironmental variations across the Cretaceous/Tertiary boundary at Braggs, Alabama
J.C. Zachos, Michael A. Arthur, Walter E. Dean
1989, Palaeogeography, Palaeoclimatology, Palaeoecology (69) 245-266
The Cretaceous/Tertiary (K/T) boundary in southern Alabama occurs in a sequence of interbedded shallow-marine limestones and marls deposited during a Late Maastrichtian regression and subsequent Danian transgression. The presence of a diverse assemblage of Cretaceous and Paleocene benthic micro- and macrofossils has allowed detailed examination of paleoenvironmental changes in this...
Changes in redox conditions in deep‐sea sediments of the subarctic North Pacific Ocean: Possible evidence for the presence of North Pacific Deep Water
Walter E. Dean, J. V. Gardner, Eileen Hemphill-Haley
1989, Paleoceanography (4) 639-653
Cores of upper Quaternary and Holocene sediment from the subarctic North Pacific north of about 48°N contain one or more layers of oxidized brown sediment interbedded within predominantly reduced green sediment. The brown layers are enriched in several trace elements, especially Mn, Mo, Ni, and Co, relative to the green...
Marine magnetic gradiometer: A tool for the seismic interpreter
Richard J. Wold, Alan K. Cooper
1989, Geophysics (8) 22-27
The marine magnetometer has been used since the early '50s as an ancillary tool on vessels conducting regional and local seismic surveys. Emphasis on marine magnetic data by academia has led to major discoveries about the structure of the earth's crust, such as the association of shallow, crustal magnetic anomalies...
Geochemical evidence for suppression of pelagic marine productivity at the Cretaceous/Tertiary boundary
J.C. Zachos, M.A. Arthur, W.E. Dean
1989, Nature (337) 61-64
The normal, biologically productive ocean is characterized by a gradient of the 13C/12C ratio from surface to deep waters. Here we present stable isotope data from planktonic and benthic micro-fossils across the Cretaceous/Tertiary boundary in the North pacific, which reveal a rapid and complete breakdown in this biologically mediated gradient. The...
Accuracy of acoustic velocity metering systems for measurement of low velocity in open channels
Antonius Laenen, R. E. Curtis Jr.
1989, Water-Resources Investigations Report 89-4090
Acoustic velocity meter (AVM) accuracy depends on equipment limitations, the accuracy of acoustic-path length and angle determination, and the stability of the mean velocity to acoustic-path velocity relation. Equipment limitations depend on path length and angle, transducer frequency, timing oscillator frequency, and signal-detection scheme. Typically, the velocity error from this...
Volcanic hazards at Mount Shasta, California
Dwight R. Crandell, Donald R. Nichols
1989, Report
The eruptions of Mount St. Helens, Washington, in 1980 served as a reminder that long-dormant volcanoes can come to life again. Those eruptions, and their effects on people and property, also showed the value of having information about volcanic hazards well in advance of possible volcanic activity. This pamphlet about...
Mineral resources of wilderness study areas: Upper Colorado River region, Utah
1989, Bulletin 1754
No abstract available....
The Macon Complex; An ancient accretionary complex in the southern Appalachians
Michael W. Higgins, Ralph Crawford, R. L. Atkins, Thomas J. Crawford
1989, Book chapter, Mélanges Olistostromes of the U.S. Appalachians
The Macon Complex, which extends from eastern Alabama to northern North Carolina, is a late Precambrian–Middle Cambrian accretionary complex comparable in size to the Franciscan Complex of California and Oregon. Much of the complex is tectonic, sedimentary, and metamorphic chaos, properly termed mélange, where well-rounded to angular fragments, blocks, and slabs of...
A chaparral family shrub--A genealogy of chaparral ecologists
Jon E. Keeley
Sterling C. Keeley, editor(s)
1989, Report, California Chaparral: Paradigms Reexamined.
No abstract available....
Acid rain publications by the U.S. Fish and Wildlife Service, 1979-1989
Rita F. Villella
1989, Biological Report 80(40.28)
Pollution of aquatic and terrestrial ecosystems has been a concern to society since the burning of fossil fuels began in the industrial revolution. In the past decade or so, this concern has been heightened by evidence that chemical transformation in the atmosphere of combustion by-products and subsequent long-range transport can...
Preface
J. Wright Horton, Jr.
1989, Book chapter, Mélanges Olistostromes of the U.S. Appalachians
No abstract available....
U.S. Geological Survey state water-data reports water year 1987-: hydrologic records of the United States
Water Resources Division, U.S. Geological Survey
1989, Report
No abstract available....
Mélanges and olistostromes in the Appalachians of the United States and mainland Canada; An assessment
Nicholas Rast, J. Wright Horton, Jr.
1989, Book chapter, Mélanges Olistostromes of the U.S. Appalachians
There is no completely accepted definition of a mélange, and the papers in this volume reflect this fact. In our regional assessment, the term mélange is principally used for a technically fragmented and mixed body of rock. A different term, olistostrome, is used for a chaotic and mixed rock body...
Avian cholera: a major new cause of waterfowl mortality
Milton Friend
1989, Fish and Wildlife Leaflet 13.2.5
No abstract available....
Lead poisoning: The invisible disease
Milton Friend
1989, Fish and Wildlife Leaflet 13.2.6
Lead poisoning is an intoxication resulting from absorption of hazardous levels of lead into body tissues. Lead pellets from shot shells, when ingested, are the most common source of lead poisoning in migratory birds. Other far less common sources include lead fishing sinkers, mine wastes, paint pigments, bullets, and other...
