A three-dimensional model to predict future oil discoveries in spatially connected multiple plays
J.H. Schuenemeyer, L.J. Drew, W.J. Bawiec
1980, Journal of the International Association for Mathematical Geology (12) 459-472
A discovery-process model that had been devised previously to estimate the size distribution of oil and gas fields remaining to be discovered in a single producing horizon was adapted to a basin containing spatially connected multiple plays and producing horizons. This model used the concept of the area of influence...
Mapping the Galilean satellites of Jupiter with Voyager data.
R. M. Batson
1980, Photogrammetric Engineering and Remote Sensing (46) 1303-1312
The four Galilean satellites of Jupiter are being mapped using image data from the Voyager 1 and 2 spacecraft. The maps are published at several scales and in several versions. Preliminary maps at 1:25,000,000-required for mission planning and preliminary science reports-were compiled within three weeks of data acquisition and have...
Discrim: a computer program using an interactive approach to dissect a mixture of normal or lognormal distributions
N.J. Bridges, R.B. McCammon
1980, Computers & Geosciences (6) 361-396
DISCRIM is an interactive computer graphics program that dissects mixtures of normal or lognormal distributions. The program was written in an effort to obtain a more satisfactory solution to the dissection problem than that offered by a graphical or numerical approach alone. It combines graphic and analytic techniques using a...
Comparison of three techniques for the determination of uranium and thorium in rocks
R. J. Hart, D.L. Reid, J. S. Stuckless, H.J. Welke
1980, Chemical Geology (29) 345-350
U and Th concentrations have been determined in a series of selected whole-rock samples, using three different techniques: neutron activation analysis (INAA), X-ray fluorescence spectrometry (XRF) and isotope dilution mass spectrometry (ID). The INAA technique yields U and Th data that are comparable with those obtained by ID over the...
Experimental study of free-surface flow instability and bedforms in shallow flows.
I. Karcz, D. Kersey
1980, Sedimentary Geology (27) 263-300
To test erosion and development of bed sculpture in unstable, pulsating shallow flow, 3 series of experiments were performed in a 10-m flume with flows of Reynolds Number up to 103, Froude Number up to 3.0, and slope up to 2%. In the first, the bed was rigid, in the...
Rate of mercury loss from contaminated estuarine sediments
Michael H. Bothner, R.A. Jahnke, M. L. Peterson, R. Carpenter
1980, Geochimica et Cosmochimica Acta (44) 273-285
The concentration of mercury in contaminated estuarine sediments of Bellingham Bay, Washington was found to decrease with a half-time of about 1.3 yr after the primary anthropogenic source of mercury was removed. In situ measurements of the mercury flux from sediments, in both dissolved and volatile forms, could not account...
The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation
George E. Claypool, William T. Holser, Isaac R. Kaplan, Hitoshi Sakai, Israel Zak
1980, Chemical Geology (28) 199-260
Three hundred new samples of marine evaporite sulfate, of world-wide distribution, were analyzed for δ34S, and 60 of these also for δ18O in the sulfate ion. Detailed δ34S age curves for Tertiary—Cretaceous, Permian—Pennsylvanian, Devonian, Cambrian and Proterozoic times document large variations in δ34S. A summary curve forδ18O also shows definite...
A generalized garnet-forming reaction for metaigneous rocks in the Adirondacks
J. M. McLelland, P.R. Whitney
1980, Contributions to Mineralogy and Petrology (72) 111-122
A generalized reaction is presented to account for garnet formation in a variety of Adirondack metaigneous rocks. This reaction, which is the sum of five partial reactions written in aluminum-fixed frames of reference, is given by: 4(y+1+w)Anorthite+4 k(y+1+2 w)Olivine +4(1-k)(y+1+2 w)Fe-oxide+(8(y+1) -4 k(y+1+2 w))Orthopyroxene = 2(y+1)Garnet +2(y+1+2 w)Clinopyroxene+4 wSpinel where...
The earthquake educational institute at San Francisco State University
R. Sullivan, R. Pestrong, H. Strongin
1980, Earthquake Information Bulletin (USGS) (12) 174-176
The Earthquake Educational Institute was established in 1978 at San Francisco State University under a grant from the U.S National Science Foundation. The goal of the Institute is to develop earthquake-related curricula for use in elementary and secondary schools in the hope that, by educating students about earthquakes, they will...
Aeromagnetic map of the Little Dog-Pup Canyon area, New Mexico
Water Resources Division, U.S. Geological Survey
1980, Open-File Report 80-997
No abstract available....
Workgroup on pesticides
J.J. Lech, J. L. Allen, D.J. Dube
J.J. Defino, editor(s)
1980, Book chapter, Methods for analysis of organic compounds in the Great Lakes
Abstract not submitted to date...
A quantitative analysis of naiad mollusks from the Prairie du Chien, Wisconsin dredge material site on the Mississippi River
M.E. Havlik, L. L. Marking
1980, Bulletin of American Malacological Union 30-34
The Prairie du Chien dredge material site contains about 100,000 cubic meters of material dredged from the East Channel of the Mississippi Riverin1976. Previous studies in that area suggested a rich molluscan fauna, but most studies were only qualitative or simply observations. Our study of this material was designed...
Reproductive success and nest attentiveness of mallard ducks fed Aroclor 1254
T. W. Custer, G. H. Heinz
1980, Environmental Pollution Series A: Ecological and Biological (21) 313-318
A dietary dosage of 25 ppm Aroclor 1254 fed to nine-month-old mallards Anas platyrhynchos for at least a month before egg-laying had no detrimental effect on reproductive success or nest attentiveness when hens were allowed to incubate their own eggs. The treatment caused no effect on number of hens laying, date of...
Oil and gas resource assessment areas, U. S. Geological Survey, Geologic Division, 1980; Lower 48 states, regions 2 through 11, and 2A, 6A, and 11A
K. L. Varnes, A. B. Coury, G.L. Dolton, S. E. Frezon, A. S. Khan, R. S. Pike, R. B. Powers, E. W. Scott
1980, Open-File Report 81-84-C
No abstract available....
Stability of micro-ingredients in fish feed
G. L. Rumsey
K.W. Chow, editor(s)
1980, Book chapter, Lectures presented at the FAO/UNDP training course in fish feed technology: Aquaculture Development and Coordination Programme: College of Fisheries, University of Washington, Seattle, Washington
No abstract available at this time...
Novel diets for aquaculture
G. L. Rumsey
K.W. Chow, editor(s)
1980, Book chapter, Lectures presented at the FAO/UNDP training course in fish feed technology: Aquaculture Development and Coordination Programme: College of Fisheries, University of Washington, Seattle, Washington
No abstract available at this time...
The comparison of usage and availability measurements for evaluating resource preference
Douglas H. Johnson
1980, Ecology (61) 65-71
Modern ecological research often involves the comparison of the usage of habitat types or food items to the availability of those resources to the animal. Widely used methods of determining preference from measurements of usage and availability depend critically on the array of components that the researcher, often with a...
Antioxidants in compounded feeds
G. L. Rumsey
K.W. Chow, editor(s)
1980, Book chapter, Lectures presented at the FAO/UNDP training course in fish feed technology: Aquaculture Development and Coordination Programme: College of Fisheries, University of Washington, Seattle, Washington
No abstract available at this time...
The distribution and mobility of uranium in glassy and zeolitized tuff, Keg Mountain area, Utah, U.S.A.
R. A. Zielinski, D. A. Lindsey, J.N. Rosholt
1980, Chemical Geology (29) 139-162
The distribution and mobility of uranium in a diagenetically altered, 8 Ma old tuff in the Keg Mountain area, Utah, are modelled in this study. The modelling represents an improvement over similar earlier studies in that it: (1) considers a large number of samples (76) collected with good geologic control...
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....
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...
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...
Crustal parameters estimated from P-waves of earthquakes recorded at a small array
J.N. Murdock, J.A. Steppe
1980, Pure and Applied Geophysics PAGEOPH (118) 1179-1190
The P-arrival times of local and regional earthquakes that are outside of a small network of seismometers can be used to interpret crustal parameters beneath the network by employing the time-term technique. Even when the estimate of the refractor velocity is poorly determined, useful estimates of the station time-terms can...
Resource estimation from historical data: Mercury, a test case
S.M. Cargill, D. H. Root, E. H. Bailey
1980, Journal of the International Association for Mathematical Geology (12) 489-522
A simple technique based on historical records of tonnage and grade of ore produced provides a means for calculating how much of a mineral product will be available in the future at various average grades. Estimates made on this basis are independent of geologic considerations or changing economic and political...
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...
