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...
Regional method to assess offshore slope stability.
H.J. Lee, B. D. Edwards
1986, Journal of Geotechnical Engineering (112) 489-509
The slope stability of some offshore environments can be evaluated by using only conventional acoustic profiling and short-core sampling, followed by laboratory consolidation and strength testing. The test results are synthesized by using normalized-parameter techniques. The normalized data are then used to calculate the critical earthquake acceleration factors or the...
Coincidence and spatial variability of geology, soils, and vegetation, Mill Run watershed, Virginia
C.G. Olson, C.R. Hupp
1986, Earth Surface Processes and Landforms (11) 619-629
The Mill Run watershed is a structurally‐controlled synclinal basin on the eastern limb of the Massanutten Mountain complex of northwestern Virginia. Bedrock contacts are obscured by coarse sandstone debris from exposures near basin divides. Colluvium blankets more than half the basin, masking geomorphic surfaces, affecting vegetation...
Infectious pancreatic necrosis virus in striped bass Morone saxatilis: experimental infection of fry and fingerlings
S.J. Wechsler, C. L. Schultz, P. E. McAllister, E.B. May, F. M. Hetrick
1986, Diseases of Aquatic Organisms (1) 203-208
No abstract available....
Design and application of vacuum degassers
J. T. Fuss
1986, Progressive Fish-Culturist (48) 215-221
Designs of vacuum degassers, which alleviate gas supersaturation in hatchery waters, have progressed greatly in recent years. Basic rules of thumb now exist by which the feasibility of vacuum degassers can be determined for particular facilities, and by which complete systems can be designed and built to meet local needs....
Potentiometric map of the Meridian-Upper Wilcox aquifer in Mississippi, fall 1983
Daphne Darden
1986, Water-Resources Investigations Report 86-4018
The Meridian-upper Wilcox aquifer consists of the Meridian Sand member of the Tallahatta Formation and the uppermost sand beds of the Wilcox Group. Thickness of the aquifer ranges from 50 ft to 500 ft. Precipitation recharges the Meridian-upper Wilcox in the outcrop area, which extends from Benton County, MS, in...
Rates of chemical weathering of rocks and minerals
Steven M. Colman, David P. Dethier, editor(s)
1986, Book
Researchers in geomorphology, geochemistry, quaternary geology, soil science, and mineralogy will welcome this volume, the first to focus exclusively on rates of silicate chemical weathering. Consisting largely of previously unpublished data from six countries, the volume examines the latest experimental, modelling, and field results.New information is presented on topics of...
Location of potential ground-water quality monitoring wells, Gainesville by 1° x 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4134
No abstract available....
Potentiometric surface map of the Winona-Tallahatta aquifer in northwestern Mississippi, fall 1983
Daphne Darden
1986, Water-Resources Investigations Report 86-4146
No abstract available....
Location of potential ground-water quality monitoring wells, Valdosta 1° by 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4143
No abstract available....
Location of potential ground-water quality monitoring wells, Pensacola 1° by 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4139
No abstract available....
Location of potential ground-water quality monitoring wells, Tarpon Springs 1° by 2° quadrangle, Florida
Martha E. Thagard, Paul R. Seaber
1986, Water-Resources Investigations Report 85-4142
No abstract available....
Waterfowl harvest at Tule Lake National Wildlife Refuge, 1936-41
D.S. Gilmer, J.M. Hicks, James C. Bartonek, E.H. McCollum
1986, California Fish and Game (72) 132-143
Waterfowl harvest at Tule Lake National Wildlife Refuge (NWR) for the 6-yr period 1936-41 is described and compared with a recent (1978-83) period. During the early period 46,987 geese and 76,143 ducks were bagged during 48,610 hunter-visits. Hunting seasons were 30 to 60 d in length. Greater White-fronted Geese Anser...
An overview of the state of computing in the earth sciences; Microcomputer applications in geology
Joseph M. Botbol, J. Hanley, D. F. Merriam
1986, Computers and Geology (5) 1-8
No abstract available....
Vegetation mapping of Nowitna National Wildlife Refuge, Alaska using Landsat MSS digital data
Stephen S. Talbot, Carl J. Markon
1986, Photogrammetric Engineering and Remote Sensing (52) 791-799
A Landsat-derived vegetation map was prepared for Nowitna National Wildlife Refuge. The refuge lies within the middle boreal subzone of north central Alaska. Seven major vegetation classes and sixteen subclasses were recognized: forest (closed needleleaf, open needleleaf, needleleaf woodland, mixed, and broadleaf); broadleaf scrub (lowland, alluvial, subalpine); dwarf scrub (prostrate...
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...
Jabal Silsilah tin prospect, Najd region, Kingdom of Saudi Arabia
du Bray
1986, Journal of African Earth Sciences (4)
A significant Sn deposit at Jabal Silsilah (26°07′N, 42°41′E), a prominent ring complex in the NE Arabian Shield, is associated with greisen in flat-topped cupolas of a highly evolved, zinnwaldite- and topaz-bearing alkali-feldspar granite. This granite is peraluminous, enriched in...
Geology and tin-greisen mineralization of the Akash granite, northern Arabian Shield
K.S. Kellogg, C. W. Smith
1986, Journal of African Earth Sciences (4) 205-210
The western margin of the postorogenic Akash granite, 30 km E of Ha'il in the northern Arabian Shield, is greisenized and contains anomalous concentrations of Sn. The pluton intrudes metamorphic and intrusive rocks, and crops out as a 10 by...
Measurement of nitrous oxide reductase activity in aquatic sediments
L.G. Miller, Ronald S. Oremland, S. Paulsen
1986, Applied and Environmental Microbiology (51) 18-24
Denitrification in aquatic sediments was measured by an N2O reductase assay. Sediments consumed small added quantities of N2O over short periods (a few hours). In experiments with sediment slurries, N2O reductase activity was inhibited by O2, C2H2, heat treatment, and by high levels of nitrate (1 mM) or sulfide (10...
Effect of seasonally changing tissue weight on trace metal concentrations in the bivalve Macoma balthica in San Francisco Bay
Daniel J. Cain, Samuel N. Luoma
1986, Marine Ecology Progress Series (28) 209-217
The influence of seasonal changes in the weight of soft tissues on temporal fluctuations in tissue concentrations of Cu and Zn was examined in 4 populations of the clam Macoma balthica sampled in San Francisco Bay for a period of 2 to 5 yr. Fluctuations in metal concentration expected from...
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....
Louisiana hydrologic atlas map no. 2: Areal extent of freshwater in major aquifers of Louisiana
Charles W. Smoot
1986, Water-Resources Investigations Report 86-4150
The areal availability of freshwater (cl content < 250 mg/L) in 14 major aquifers in Louisiana was investigated. The depth of occurrence of fresh groundwater in Louisiana is variable. The aquifers were mapped to show their areal extent from the outcrop or subcrop to the downdip limit of freshwater. Water...
Chemistry of illite/smectite and end-member illite
J. Srodon, D.J. Morgan, E.V. Eslinger, D. D. Eberl, M.R. Karlinger
1986, Clays and Clay Minerals (34) 368-378
Chemical data from three different series of diagenetic illite/smectites (I/S), analyzed statistically by two regresion techniques, indicate that the content of fixed-K per illite layer is not constant, but ranges from ∼0.55 per O10(OH)2 for illite layers in randomly interstratified I/S (R=0; > 50% smectite layers) to ∼1.0 per O10(OH)2 for illite...
Timing of volcanic and hydrothermal activity, Huancavelica mercury district, Peru.
E.H. McKee, D. C. Noble, C. Vidal C.
1986, Economic Geology (81) 489-492
No abstract available....
Contrasting magma types and steady-state, volume-predictable, basaltic volcanism along the Great Rift, Idaho
M. A. Kuntz, D.E. Champion, E.C. Spiker, R.H. Lefebvre
1986, Geological Society of America Bulletin (97) 579-594
The Great Rift is an 85-km-long, 2- to 8-km-wide volcanic rift zone in the Snake River Plain, Idaho. Three latest Pleistocene to Holocene basaltic lava fields, Craters of the Moon, Kings Bowl, and Wapi, are located along the Great Rift. The Craters of...
