Paragenesis and tectonic significance of base and precious metal occurrences along the San Andreas fault at Point Delgada, California
R. J. McLaughlin, D. H. Sorg, J. L. Morton, T. G. Theodore, C.E. Meyer, M.H. Delevaux
1985, Economic Geology (80) 344-359
Studies of sulfide vein mineralization at Point Delgada, California, suggest that the mineralizing process was intimately associated with the San Andreas fault system and/or plate-margin tectonism. The deposits occur along north-south to northeast-southwest-trending tension faults that intersect and cross a major northwest-trending fault previously considered to be a major trace...
Erosion of the Laurentide region of North America by glacial and glaciofluvial processes
M. Bell, E.P. Laine
1985, Quaternary Research (23) 154-174
Collection of seismic reflection data from continental margins and ocean basins surrounding North America makes it possible to estimate the amount of material eroded from the area formerly covered by Laurentide ice sheets since major glaciation began in North America. A minimum estimate is made of 1.62 ?? 106 km3,...
Federal coal resource occurrence and coal development potential maps of the Pinehaven 7 1/2-minute quadrangle, McKinley County, New Mexico
Berge Exploration Inc.
1985, Open-File Report 80-40
No abstract available....
Comparison of methods for estimating ground-water pumpage for irrigation
Steven A. Frenzel
1985, Groundwater (23) 220-226
Ground-water pumpage for irrigation was measured at 32 sites on the eastern Snake River Plain in southern Idaho during 1983. Pumpage at these sites also was estimated by three commonly used methods, and pumpage estimates were compared to measured values to determine the accuracy...
Correlation of ash-flow tuffs
W. Hildreth, G. Mahood
1985, Geological Society of America Bulletin (96) 968-974
Discrimination and correlation of ash-flow sheets is important in structurally complex, long-lived volcanic fields where such sheets provide the best keys to the regional stratigraphic framework. Three-dimensional complexities resulting from pulsatory eruptions, sectorial emplacement, mechanical sorting during outflow, thermal and compositional zoning of...
Magnitude and seismic moment scales in western Yunnan, Peoples Republic of China
W. H. Bakun, Yizheng Li, F.G. Fischer, Yafu Jin
1985, Bulletin of the Seismological Society of America (75) 1599-1612
Magnitude and seismic moment scales in western Yunnan, Peoples Republic of China...
Degradation of carbohydrates and lignins in buried woods
J. I. Hedges, G.L. Cowie, J.R. Ertel, Barbour R. James, Patrick G. Hatcher
1985, Geochimica et Cosmochimica Acta (49) 701-711
Spruce, alder, and oak woods deposited in coastal sediments were characterized versus their modern counterparts by quantification of individual neutral sugars and lignin-derived phenols as well as by scanning electron microscopy, 13C NMR, and elemental analysis. The buried spruce wood from a 2500 yr old deposit was unaltered whereas an alder wood from...
Calaveras reversed: Westward younging is indicated
P. C. Bateman, A. G. Harris, R. W. Kistler, K.B. Krauskopf
1985, Geology (13) 338-341
Samples of limestone collected from strata in the southern part of the western metamorphic belt of the Sierra Nevada, which traditionally have been assigned to the Calaveras Formation, have yielded Early Triassic conodonts, and samples of metavolcanic rock indicate an Early Jurassic Rb-Sr...
FLUORINE IN COLORADO OIL SHALE.
John R. Dyni
Gary James H., editor(s)
1985, Conference Paper, Oil Shale Symposium Proceedings
Oil shale from the lower part of the Eocene Green River Formation in the Piceance Creek Basin, Colorado, averages 0. 13 weight percent fluorine, which is about twice that found in common shales, but is the same as the average amount found in some oil shales from other parts of...
ESTIMATE OF WORLD HEAVY CRUDE OIL AND NATURAL BITUMEN RESOURCES.
Richard F. Meyer, Christopher J. Schenk
1985, Conference Paper
The quantity of heavy hydrocarbons - heavy crude oil and natural bitumens - known or surmised to be present in the earth is large. The total is estimated to fall in the range of 5,879,712-5,942,139 million barrels. The portion of this that may ultimately prove recoverable is small, perhaps on...
Managing mapping data using commercial data base management software.
A.A. Elassal
1985, Photogrammetric Engineering and Remote Sensing (51) 1133-1136
Electronic computers are involved in almost every aspect of the map making process. This involvement has become so thorough that it is practically impossible to find a recently developed process or device in the mapping field which does not employ digital processing in some form or another. This trend, which...
A GC-system for the analysis of residual geothermal gases
D.S. Sheppard, A.H. Truesdell
1985, Chromatographia (20) 681-682
The gases evolved from geothermal fields, after condensation of H2O, CO2, H2S and NH3 in caustic solution, contain He, H2, Ar, O2, N2, CH4 and higher hydrocarbons. The analysis for the major components in these residual gas mixtures can be achieved by use of two simple gas chromatographs in parallel,...
Vertical transmission of infectious hematopoietic necrosis virus in sockeye salmon (Oncorhynchus nerka): Isolation of virus from dead eggs and fry
D. Mulcahy, R.J. Pascho
1985, Journal of Fish Diseases (8) 393-396
The control of epizootics of infectious haematopoietic necrosis (IHN) virus in salmonid fishes is presently based on examination and certification of adult brood fish to prevent the introduction of virus-infected eggs into hatcheries (Canadian Fisheries and Marine Service 1976; McDaniel 1979). This strategy is based on the assumption that the...
Resolving controls on epeiric sedimentation using trend surface analysis
W.L. Watney
1985, Journal of the International Association for Mathematical Geology (17) 427-454
An understanding of patterns of regional sedimentation is crucial to identifying trends of perspective petroleum reservoirs. The Upper Pennsylvanian, Missourian Kansas City Group consists of repetitions of widespread carbonate rock and shale. Each of four cyclothems chosen for subsurface study of western Kansas contains transgressive and regressive lithofacies with evidence...
A procedure for estimating Bacillus cereus spores in soil and stream-sediment samples — A potential exploration technique
J.R. Watterson
1985, Journal of Geochemical Exploration (23) 243-252
The presence of bacterial spores of the Bacillus cereus group in soils and stream sediments appears to be a sensitive indicator of several types of concealed mineral deposits, including vein-type gold deposits. The B. cereus assay is rapid, inexpensive, and inherently reproducible. The test, currently under investigation for its potential in mineral...
The spotted turtles of Cedar Bog: a population in decline
J.E. Lovich
1985, Report
No abstract available at this time...
A comparison of commercially available tags: a study of rainbow trout under various culture conditions
K.W. McAllister
1985, Thesis, A comparison of commercially available tags: a study of rainbow trout under various culture conditions (Masters Thesis)
No abstract available at this time...
Pollution: lowering levels of phosphorus, experimenting with feed, diets
H. G. Ketola, H. Westers, C. Pecor, W. Houghton, L. Wubbels
1985, Salmonid (9) 11
xygen isotope, aeromagnetic, and gravity anomalies associated with hydrothermally altered zones in the Yankee Fork mining district, Custer County, Idaho
R.E. Criss, D.E. Champion, D. H. McIntyre
1985, Economic Geology (80) 1277-1296
Epithermal Ag-Au vein and disseminated deposits in the Yankee Fork district are hosted in altered volcanic rocks having low delta 18 O values, low magnetic susceptibilities, low remanent magnetizations, and relatively high densities. These isotopic and physical quantities provide sensitive indices of rock alteration that can be contoured over areas that are...
1985 Rare Plant Study Findings. A Report to the California State Dept. of Fish and Game, Endangered Plant Species Program and the Superintendent, Channel Islands National Park
R. Fowler, W. L. Halvorson
1985, Report
No abstract available at this time...
A northern harrier nest in Kossuth County, Iowa
J. P. Fleskes, J. Clark
1985, Bird Life (55) 114-115
Stocking and hooking mortality of planted rainbow trout in Jocassee Reservoir, South Carolina
D. Hugh Barwick
1985, North American Journal of Fisheries Management (5) 580-583
Attempts to establish a 'put-grow-and-take' fishery for rainbow trout (Salmo gairdneri) in Jocassee Reservoir, South Carolina failed despite plantings of 200,000 fish in 1972-1979 because few of the stocked fish survived to legal size. At the same time, a fishery for brown trout (Salmo trutta) was established successfully by planting...
Sorting of bed load sediment by flow in meander bends
Gary Parker, E.D. Andrews
1985, Water Resources Research (21) 1361-1373
Equilibrium sorting of coarse mobile bed load sediment in meander bends is considered. A theory of two-dimensional bed load transport of graded material, including the effects of gravity on lateral slopes and secondary currents, is developed. This theory is coupled with a simple treatment of flow in bends, an analytically...
Apatitic connecting rings in moulds of Baculites sp. from the middle part of the Smoky Hill Member, Niobrara Chalk (Santonian), of western Kansas
W.A. Hasenmueller, D.E. Hattin
1985, Cretaceous Research (6) 317-330
Moulds of Baculites sp. are common in the Smoky Hill Member but only five known specimens contain connecting rings that have been preserved because of mineralisation by carbonate apatite. Analysis of four of these specimens suggests that the connecting rings were originally composed of organic material and were mineralised during early diagenesis....
Assessment of nasal marker materials and designs used on dabbling ducks
J. T. Lokemoen, D.E. Sharp
1985, Wildlife Society Bulletin (13) 53-56
Abstract has not been submitted...
