Economics and petroleum resource appraisal: The case of the Permian basin:
Emil D. Attanasi, T.M. Garland, J.H. Wood, William D. Dietzman, J.N. Hicks
1981, Journal of Petroleum Technology (33) 603-616
Estimates of oil and gas resources typically are presented in terms of proved and undiscovered resources. This paper presents a methodology for incorporating economic considerations into resource appraisals for petroleum basins. A cost algorithm is used to calculate estimates of the costs of finding and developing undiscovered oil and gas...
Antiphase domains and reverse thermoremanent magnetism in ilmenite-hematite minerals
C.A. Lawson, Gordon L. Nord Jr., Eric Dowty, R.B. Hargraves
1981, Science (213) 1372-1374
Examination of synthetic ilmenite-hematite samples by transmission electron microscopy has for the first time revealed the presence of well-defined antiphase domains and antiphase domain boundaries in this mineral system. Samples quenched from 1300°C have a high density of domain boundaries, whereas samples quenched from 900°C have a...
Coral snake mimicry: Does it occur?
H.W. Greene, R.W. McDiarmid
1981, Science (213) 1207-1212
Field observations and experimental evidence refute previous objections to the coral snake mimicry hypothesis. Concordant color pattern variation spanning hundreds of miles and several presumed venomous models strongly suggests that several harmless or mildly venomous colubrid snakes are indeed mimics of highly venomous elapids....
Organic geochemistry of the 9.6 km Bertha Rogers No. 1. well, Oklahoma
Leigh C. Price, Jerry L. Clayton, L.L. Rumen
1981, Organic Geochemistry (3) 59-77
Organic geochemical analyses of fine-grained rocks from the 9.590 km Bertha Rogers No. 1 well have been carried out: total organic carbon, Soxhlet extraction and silica gel chromatography, C15+ saturated and aromatic hydrocarbon gas chromatography and mass spectrometry, pyrolysis, kerogen analysis, X-ray diffraction and visual kerogen analysis.Rocks ranged in age from...
Verification of land cover maps from Landsat data
David S. Linden, John Szajgin
1981, Conference Paper, Western regional remote sensing conference proceedings, 1981
No abstract available....
Remote sensing applications for range management
Robert H. Haas
1981, Conference Paper, Western regional remote sensing conference proceedings, 1981
No abstract available....
Assessing accuracy of digital land use and terrain data
James A. Sturdevant
1981, Conference Paper, 80's era of change: Fall technical meeting 1981
No abstract available....
Uranium series dating of human skeletal remains from the Del Mar and Sunnyvale sites, California
J. L. Bischoff, R.J. Rosenbauer
1981, Science (213) 1003-1005
Uranium series analyses of human bone samples from the Del Mar and Sunnyvale sites indicate ages of 11,000 and 8,300 years, respectively. The dates are supported by internal concordancy between thorium-230 and protactinium-231 decay systems. These ages are significantly younger than the estimates of 48,000 and 70,000...
Quiet zone within a seismic gap near western Nicaragua: Possible location of a future large earthquake
D.H. Harlow, R.A. White, I.L. Cifuentes, Q.A. Aburto
1981, Science (213) 648-651
A 5700-square-kilometer quiet zone occurs in the midst of the locations of more than 4000 earthquakes off the Pacific coast of Nicaragua. The region is indicated by the seismic gap technique to be a likely location for an earthquake of magnitude larger than 7. The quiet zone...
Miocene benthic foraminiferal isotope records: A synthesis
S.M. Savin, R.G. Douglas, G. Keller, J.S. Killingley, L. Shaughnessy, M.A. Sommer, E. Vincent, F. Woodruff
1981, Marine Micropaleontology (6) 423-450
18O/160 and 13C/12C ratios of Miocene benthic foraminifera from a number of Atlantic, Pacific and Indian Ocean DSDP sites (71, 77B, 206, 208, 238, 279, 289, 296, 329, 357 and 366A) have been compiled. These provide a rather detailed history of Miocene deep water especially in the Pacific Ocean. Bottom-water...
Tests of the assumptions underlying life table methods for estimating parameters from cohort data
David R. Anderson, A. Wywialowski, Kenneth P. Burnham
1981, Ecology (62) 1121-1124
No abstract available....
Results of a modeling workshop concerning development of the Beluga coal resource in Alaska
Peter J. McNamee, Austin K. Andrews, Gregor T. Auble, Richard A. Ellison, Richard L. Johnson, David B. Hamilton, James E. Roelle
1981, Report
No abstract available....
Recent refinements in calibrating bed-load samplers
D. W. Hubbell, H.H. Stevens, J. V. Skinner, J.P. Beverage
1981, Conference Paper, Proceedings: Water Forum `81
No abstract available....
Continental accretion: From oceanic plateaus to allochthonous terranes
Z. Ben-Avraham, A. Nur, D. Jones, A. Cox
1981, Science (213) 47-54
Some of the regions of the anomalously high sea-floor topography in today's oceans may be modern allochthonous terranes moving with their oceanic plates. Fated to collide with and be accreted to adjacent continents, they may create complex volcanism, cut off and trap oceanic crust, and cause orogenic...
State of stress and intraplate earthquakes in the United States
Mark D. Zoback, Mary Lou Zoback
1981, Science (213) 96-104
Recently compiled data on the state of stress have been used to define stress provinces in the conterminous United States in which the orientation and relative magnitude of the horizontal principal stresses are fairly uniform. The observed patterns of stress constrain mechanisms for generating intraplate lithospheric stresses....
Crustal processes of the Mid-Ocean Ridge
Richard D. Ballard, H. Craig, J. Edmond, M. Einaudi, R. Holcomb, H.D. Holland, C.A. Hopson, B.P. Luyendyk, K. Macdonald, J. Morton, J. Orcutt, N. Sleep
1981, Science (213) 31-40
Independent geological and geophysical investigations of the Mid-Ocean Ridge system have begun to focus on the nature of the magma chamber system underlying its central axis. Thermal models predict the existence of a steady-state chamber beneath a thin crustal lid ranging in thickness from 2 to 13...
Determination of age and whelping dates of live red fox pups
Alan B. Sargeant, Stephen H. Allen, Douglas H. Johnson
1981, Journal of Wildlife Management (45) 760-765
No abstract available. ...
Experimental lead-shot poisoning in bald eagles
Oliver H. Pattee, Stanley N. Wiemeyer, B.M. Mulhern, Louis Sileo, James W. Carpenter
1981, Journal of Wildlife Management (45) 806-810
No abstract available. ...
Abnormal behavior of canvasbacks equipped with radio transmitters
Matthew C. Perry
1981, Journal of Wildlife Management (45) 786-789
No abstract available. ...
Sensitivity of band reporting-rate estimates to violations of assumptions
Michael J. Conroy, B. Kenneth Williams
1981, Journal of Wildlife Management (45) 789-792
No abstract available. ...
Foods of prairie raccoons during the waterfowl nesting season
Raymond J. Greenwood
1981, Journal of Wildlife Management (45) 754-760
No abstract available. ...
Decline and present status of breeding Peregrine Falcons in Oregon
Charles J. Henny, M.W. Nelson
1981, Murrelet (62) 43-53
Unprecedented declines of the Peregrine Falcon (Falco peregrinus) throughout much of the Northern Hemisphere became apparent during the Madison Peregrine Falcon Conference in 1965 (Hickey 1969). Data from Britain were the most detailed; broken or missing eggs were much more common in 1949-56 than they had been in earlier years...
Processes controlling the characteristics of the surficial sand sheet, U.S. Atlantic outer continental shelf
Harley J. Knebel
1981, Marine Geology (42) 349-368
A review of recent data on the velocity of bottom currents, the frequency of bottom-sediment movement, the kinds and amounts of suspended sediments in near-bottom waters, and the acoustic and sedimentary features of subbottom strata indicates that the characteristics of the ubiquitous sand sheet on the Atlantic outer continental shelf...
Establishing backcountry use quotas: an example from Mineral King, California
David J. Parsons, Thomas J. Stohlgren, Paul A. Fodor
1981, Environmental Management (5) 335-340
Increasing levels of visitor use and consequent resource damage have necessitated that backcountry use restrictions be established in the Mineral King area of Sequoia National Park, California. In this paper we review the steps taken in developing a trailhead quota system. The availability of acceptable campsites, based on a detailed...
How to order maps on microfilm
Water Resources Division, U.S. Geological Survey
1981, Report
The collection comprises over 120,000 maps, including some 15-minute quadrangle maps compiled by the U.S. Army Corps of Engineers, National Parks and Monument maps, River Survey maps, and selected Federal Highway Administration county planning maps. The collection will continue to grow as other types of maps are added....
