Search for seismic forerunners to earthquakes in central California
R. L. Wesson, R. Robinson, C. G. Bufe, W.L. Ellsworth, J. H. Pfluke, J.A. Steppe, L. C. Seekins
1977, Tectonophysics (42) 111-126
The relatively high seismicity of the San Andreas fault zone in central California provides an excellent opportunity to search for seismic forerunners to moderate earthquakes. Analysis of seismic traveltime and earthquake location data has resulted in the identification of two possible seismic forerunners. The first is a period of apparently...
The organic geochemistry of black sedimentary barite: Significance and implications of trapped fatty acids
R.E. Miller, D.A. Brobst, P.C. Beck
1977, Organic Geochemistry (1) 11-26
Fatty acids isolated in sedimentary black barite (BaSO4) from Arkansas and Nevada were identified by gas chromatography-mass spectroscopy. The dominant or major fatty acids found in these beds of barite are C16:0, C18:0, and C18:1. The occurrence and distribution of these acids in this type of rock may serve as...
Empirical law for fault-creep events
S.Thomas Crough, Robert O. Burford
1977, Tectonophysics (42) T53-T59
Fault-creep events measured on the San Andreas and related faults near Hollister, California, can be described by a rheological model consisting of a spring, power-law dashpotand sliding block connected in series. An empirical creep-event law, derived from many creep-event records analyzed within the constraints of the model, provides a remarkably...
Geochemistry of Precambrian mafic dikes, central Bighorn Mountains, Wyoming, U.S.A.
T.J. Armbrustmacher
1977, Precambrian Research (4) 13-38
Precambrian quartz dolerites and metadolerites of the central Bighorn Mountains form dikes that intrude a Precambrian metamorphic and igneous terrane typical of the Laramide uplifts of the middle Rocky Mountains. They have a restricted range of major- and trace-element compositions and are typical of basalts in the middle stages of...
Suspended particulate loads and transports in the nepheloid layer of the abyssal Atlantic Ocean
P.E. Biscaye, S.L. Eittreim
1977, Marine Geology (23) 155-172
Vertical profiles of light scattering from over 1000 L-DGO nephelometer stations in the Atlantic Ocean have been used to calculate mass concentrations of suspended particles based on a calibration from the western North American Basin. From these data are plotted the distributions of particulate concentrations at clear water and in...
Determination of 30 elements in coal and fly ash by thermal and epithermal neutron-activation analysis
J.J. Rowe, E. Steinnes
1977, Talanta (24) 433-439
Thirty elements are determined in coal and fly ash by instrumental neutron-activation analysis using both thermal and epithermal irradiation. Gamma-ray spectra were recorded 7 and 20 days after the irradiations. The procedure is applicable to the routine analysis of coals and fly ash. Epithermal irradiation was found preferable for the...
Explanation to accompany preliminary map showing bedrock geology superposed on an aeromagnetic base map of the Worcester region, Massachusetts, Connecticut, and Rhode Island
Patrick James Barosh
1977, Open-File Report 77-131
Reconnaissance geologic map of the Guest Peninsula Quadrangle, Marie Byrd Land, Antarctica
F.A. Wade, C.A. Cathey, J.B. Oldham
1977, Antarctic Map 7
Reconnaissance geologic map of the Alexandra Mountains Quadrangle, Marie Byrd Land, Antarctica
F. Alton Wade, Carl A. Cathey, Jerry B. Oldham
1977, Antarctic Map 5
Reconnaissance geologic map of the Boyd Glacier Quadrangle, Marie Byrd Land, Antarctica
F.A. Wade, C.A. Cathey, J.B. Oldham
1977, Antarctic Map 6
Verification of a model for predicting the effect of inconstant temperature on embryonic development of lake whitefish (Coregonus clupeaformis)
William H. Berlin, L.T. Brooke, Linda J. Stone
1977, Technical Paper 92
Eggs stripped from lake whitefish (Coregonus clupeaformis) spawning in Lake Michigan were incubated in the laboratory at temperatures similar to those on whitefish spawning grounds in Lake Michigan during December-April. Observed times from fertilization to attainment of each of 21 developmental stages were used to test a model that predicts...
Paleotectonic, biostratigraphic, and economic significance of Osagean to early Meramecian starved basin in Utah
Charles A. Sandberg, Raymond C. Gutschick
1977, Open-File Report 77-121
Audio-magnetotelluric data log and station location map for Pinto Hot Springs Known Geothermal Resource Area, Nevada
Donald B. Hoover, Michael Batzle
1977, Open-File Report 77-65-A
Trophic conditions in Lake Winnisquam, New Hampshire
Leonard R. Frost Jr.
1977, Water-Resources Investigations Report 77-137
Lake Winnisquam has received treated domestic sewage for approximately 50 years and since June 1961 has been treated with copper sulfate to control the growth of nuisance algae. The Laconia City secondary sewage-treatment plant was upgraded in 1975 to include phosphorus removal. Phosphorus was not removed effectively until early 1976,...
Glastonbury gneiss body, a modified Oliverian dome, and related rocks in south-central Massachusetts and north-central Connecticut: petrology, geochemistry, and origin
Gerhard W. Leo, Douglas G. Brookins
1977, Open-File Report 77-554
Energy resources map of Colorado
Water Resources Division, U.S. Geological Survey
1977, IMAP 1039
No abstract available....
Deep drilling data, Raft River geothermal area, Idaho; Raft River geothermal exploration No. 3
H. R. Covington (compiler)
1977, Open-File Report 77-616
Geologic map of the Scholle quadrangle, Socorro, Valencia, and Torrance Counties, New Mexico
Donald A. Myers
1977, Geologic Quadrangle 1412
Descriptions of pre-Quaternary samples, R/V Ellen B. Scripps, September 1976, Patton Ridge to Blake Knolls, California continental borderland
J. G. Vedder, J.K. Crouch, R.E. Arnal, David Bukry, J.A. Barron, F. Lee-Wong
1977, Open-File Report 77-474
Geologic map of the Big A Mountain quadrangle, Buchanan and Russell Counties, Virginia
Ralph L. Miller, Charles R. Meissner
1977, Geologic Quadrangle 1350
Crystal VCO center frequency stabilizer
E. Gray Jensen
1977, Open-File Report 77-184
Geologic map of the Ringling quadrangle, Meagher County, Montana
Laura W. McGrew
1977, Geologic Quadrangle 1382
Geologic map of the Sixteen NE quadrangle, Meagher, Gallatin, and Park Counties, Montana
Laura W. McGrew
1977, Geologic Quadrangle 1384
Land use and land cover and associated maps for Crater Lake, Oregon
Water Resources Division, U.S. Geological Survey
1977, Open-File Report 77-442
Geologic map of the Brooks Spring quadrangle, Humboldt County, Nevada
Sherman P. Marsh, Ralph Leroy Erickson
1977, Geologic Quadrangle 1366
