Isotopic variation in the Tuolumne Intrusive Suite, central Sierra Nevada, California
R. W. Kistler, B. W. Chappell, D. L. Peck, P. C. Bateman
1986, Contributions to Mineralogy and Petrology (94) 205-220
Granitoid rocks of the compositionally zoned Late Cretaceous Toulumne Intrusive Suite in the central Sierra Nevada, California, have initial87Sr/86Sr values (Sri) and143Nd/144Nd values (Ndi) that vary from 0.7057 to 0.7067 and from 0.51239 to 0.51211 respectively. The observed variation of both Sri and Ndi and of chemical composition in rocks...
Spring and summer survival of female mallards from northcentral Minnesota
Ronald E. Kirby, Lewis M. Cowardin
1986, Journal of Wildlife Management (50) 38-43
Seasonal survival of 109 adult female mallards (Anas platyrhynchos) fitted with radio transmitters was evaluated in northcentral Minnesota during 1968-74. Survival rates for the 169-day breeding and postbreeding period were: 1.0 during nest initiation (36 days), 0.798 during incubation (28 days), 0.943 during brood rearing (51 days), 0.947 during molt...
Secretinite: A proposed new maceral of the inertinite maceral group
P.C. Lyons, Patrick G. Hatcher, F. W. Brown
1986, Fuel (65) 1094-1098
The new maceral secritinite (name derived from the word ‘secretory’) is proposed for subcircular, ovoid, crescent-shaped or oblong, commonly round on one or more sides, noncellular, highly reflective components of the inertinite maceral group. This maceral of secretory origin, known from many bituminous coals throughout the world, has been confused...
Mass balance and sliding velocity of the Puget lobe of the cordilleran ice sheet during the last glaciation
D. B. Booth
1986, Quaternary Research (25) 269-280
An estimate of the sliding velocity and basal meltwater discharge of the Puget lobe of the Cordilleran ice sheet can be calculated from its reconstructed extent, altitude, and mass balance. Lobe dimensions and surface altitudes are inferred from ice limits and flow-direction indicators. Net annual mass balance and total ablation...
Publications of the U.S. Geological Survey, 1971-1981
Water Resources Division, U.S. Geological Survey
1986, Report
This catalog is a list of books and maps published between 1971 and 1981. It supplements the past permanent catalogs "Publications of the Geological Survey, 1879-1961" and "Publications of the Geological Survey, 1962-1970." It also lists those reports in the 1879-1961 and 1962-70 catalogs that are out of stock and...
Southeastern extension of the Lake Basin fault zone in south- central Montana: implications for coal and hydrocarbon exploration ( USA).
L. N. Robinson, B. E. Barnum
1986, Mountain Geologist (23) 37-44
The Lake Basin fault zone consists mainly of en echelon NE-striking normal faults that have been interpreted to be surface expressions of left-lateral movement along a basement wrench fault. Information gathered from recent field mapping of coal beds and from shallow, closely-spaced drill holes resulted in detailed coal bed correlations,...
Geology of the surficial aquifer system, Dade County, Florida: Lithologic logs
C. R. Causaras
1986, Water-Resources Investigations Report 86-4126
The geologic framework of the surficial aquifer system in Dade County, Florida, was investigated as part of a longterm study by the USGS in cooperation with the South Florida Water Management District, to describe the geology, hydrologic characteristics, and groundwater quality of the surficial aquifer system. Thirty-three test wells were...
Status of fishery chemicals in 1985
R. A. Schnick, F. P. Meyer, D. F. Walsh
1986, Progressive Fish-Culturist (48) 1-17
A summary list of registered or approved products is provided for fishery uses, effective June 1985. The current status of efforts to register others and a discussion of the need for new products is presented....
Mycoplasma contamination in fish cell lines: An evaluation of detection by differential incorporation of 3H-uridine and 14C-uracil
C. L. Schultz, B. C. Lidgerding, P. E. McAllister, F. M. Hetrick
1986, Journal of Fish Diseases (9) 117-122
Differential incorporation of uridine and uracil was used to assay for mycoplasma contamination in five fish cell lines: bluegill fry (BF-2), chinook salmon embryo (CHSE-214), epithelioma papillosum cyprini (EPC), fathead minnow (FHM) and rainbow trout gonad (RTG-2). The method was not suitable for monitoring BF-2, CHSE-214, FHM, and RTG-2 cell...
Aqueous geochemistry and diagenesis in the eastern Snake River Plain aquifer system, Idaho
Warren W. Wood, Walton H. Low
1986, Bulletin (97) 1456-1466
Water budget and isotopic analyses of water in the eastern Snake River Plain aquifer system confirm that most, if not all, of the water is local meteoric in origin. Solute mass-balance arguments suggest that ∼5 × 109 moles of calcite and 2.6 × 109 moles of silica are precipitated annually...
Seismic Computerized Alert Network
Henry Spall, editor(s)
1986, Earthquakes & Volcanoes (USGS) (18) 153-153
In 1985 the USGS devised a model for a Seismic Computerized Alert Network (SCAN) that would use continuous monitoring of seismic data from existing types of instruments to provide automatic, highly-reliable early warnings of earthquake shaking. In a large earthquake, substantial damaging ground motions may occur at great distances from...
Influence of irrigation on salinity and nitrate in a stream-aquifer system
Leonard F. Konikow, M.A. Person
1986, Conference Paper, Conjunctive water use: understanding and managing surfacewater-groundwater interactions
Changes in salinity and nitrate concentration in groundwater and surface water in the semiarid Arkansas River valley of southeastern Colorado, USA were related primarily to irrigation practices. Water is applied to fields by flood irrigation through ditches and furrows. Irrigation water is derived in nearly equal amounts from surface water...
Paleomagnetism and K-Ar ages of volcanic rocks from Long Valley caldera, California
Edward A. Mankinen, C. Sherman Gromme, G. Brent Dalrymple, Marvin A. Lanphere, Roy A. Bailey
1986, Journal of Geophysical Research B: Solid Earth (91) 633-652
Paleomagnetic measurements and K‐Ar age determinations on volcanic rocks from Long Valley caldera, California, have enabled further refinement of eruptive activity within this large silicic volcanic center. K‐Ar age determinations show that postcaldera volcanic eruptions began 0.73 m.y. ago and continued periodically until about 50,000 years ago. The eruptions were...
What won't Turnstones eat?
Robert E. Gill Jr.
1986, British Birds (79) 402-403
The Turnstone Arenaria interpres probably has one of the most varied diets of any wader species. Besides the 'normal' foods taken (see, e.g., Prater 1972, Nettleship 1973, Jones 1975), a considerable variety of 'unusual' foods and feeding behaviours has also been reported. Items taken include soap, gull excrement, dog food,...
Digital image measurement of the area and anatomical structure of tree rings
Thomas M. Yanosky, Charles J. Robinove
1986, Canadian Journal of Botany (64) 2896-2902
A microcomputer coupled to a video digitizer was used to develop methods for measuring areas of tree rings and for delineating and measuring microscopic anatomical features. Digitally imaged areas of individual rings of a loblolly pine cross section were within 2.6% of areas measured with a planimeter and were more...
Relationship of grade, tonnage, and basement lithology in volcanic-hosted epithermal precious-and base-metal quartz-adularia-type districts
D.L. Mosier, Donald A. Singer, T. Sato, N.J. Page
1986, Mining Geology (36)
Examination of grades, tonnages, and basement rocks for 88 epithermal precious- and base-metal quartz-adularia-type districts in North, Central, and South America, and Japan reveals that the type of basement rock below the mineralized veins is useful for predicting grade and size of deposits. Epithermal districts overlying basement with salt and...
Geohydrology of the Lloyd aquifer, Long Island, New York
M. S. Garber
1986, Water-Resources Investigations Report 85-4159
The Lloyd aquifer contains only about 9% of the water stored in Long Island 's groundwater system but is the only source of potable water for several communities near the north and south shores. The Lloyd aquifer is virtually untapped throughout most of central Long Island because current legal restrictions...
Guidelines to classification and nomenclature of Arabian felsic plutonic rocks
C.R. Ramsay, D. B. Stoeser, A.R. Drysdall
1986, Journal of African Earth Sciences (4) 13-20
Well-defined procedures for classifying the felsic plutonic rocks of the Arabian Shield on the basis of petrographic, chemical and lithostratigraphic criteria and mineral-resource potential have been adopted and developed in the Saudi Arabian Deputy Ministry for Mineral Resources over the...
Use of spawner recruit relations to evaluate the effect of degraded environment and increased fishing on the abundance of fall run Chinook in several California streams
R.R. Reisenbichler
1986, Thesis
No abstract available ...
Geochemical exploration for mineralized breccia pipes in northern Arizona, U.S.A.
K. J. Wenrich
1986, Applied Geochemistry (1) 469-485
Thousands of solution-collapse breccia pipe crop out in the canyons and on the plateaus of northern Arizona. Over 80 of these are known to contain U or Cu mineralized rock. The high-grade U ore associated with potentially economic concentrations of Ag, Pb, Zn, Cu, Co and Ni in some of...
Mapping nuclear craters on Enewetak Atoll, Marshall Islands
John C. Hampson
1986, Conference Paper, Proceedings International Symposium on Marine Positioning
In 1984, the U.S. Geological Survey conducted a detailed geologic analysis of two nuclear test craters at Enewetak Atoll, Marshall Islands, on behalf of the Defense Nuclear Agency. A multidisciplinary task force mapped the morphology, surface character, and subsurface structure of two craters, OAK and KOA. The field mapping techniques include...
Not-so-inactive fault in Oklahoma
Henry Spall, editor(s)
1986, Earthquakes & Volcanoes (USGS) (18) 150-151
In connection with a search for geologically quiet areas for sitting large engineering ventures such as dams and nuclear power plants, geologists have recently started looking at the Meers fault in southwestern Oklahoma with an intense interest....
Fate and distribution studies of some drugs used in aquaculture
J. L. Allen, J. B. Hunn
1986, Veterinary and Human Toxicology 21-24
Bioaccumulation of PCBs and mercury from Toronto and Toledo Harbor sediments
Michael J. Mac, W. A. Willford
R.E. White, editor(s)
1986, Report, Evaluation of sediment bioassessment techniques, Report of the Dredging Subcommittee to the Great Lakes Water Quality Board
No abstract available....
RAINFALL-LOSS PARAMETER ESTIMATION FOR ILLINOIS.
Linda S. Weiss, Audrey L. Ishii
1986, Conference Paper
The U. S. Geological Survey is currently conducting an investigation to estimate values of parameters for two rainfall-loss computation methods used in a commonly used flood-hydrograph model. Estimates of six rainfall-loss parameters are required: four for the Exponential Loss-Rate method and two for the Initial and Uniform Loss-Rate method. Multiple...
