Evidence for tectonic emplacement of ultramafic and associated rocks in the pre-Silurian eugeoclinal belt of western New England: Vestiges of an ancient accretionary wedge
Rolfe S. Stanley, D. L. Roy, Norman L. Hatch, Douglas A. Knapp
1984, American Journal of Science (284) 559-595
In northern Vermont, detailed 1:10,000 mapping of the Hazens Notch, Ottauquechee, Stowe, and Moretown formations in the 60 km 2 Jay area has shown that metasedimentary rocks and serpentinites are highly faulted to produce a tectonic stratigraphy in which serpentinites and talc-carbonate rocks occur as slivers along faults that separate contrasting lithic...
Comment on "environmental fate and effects of ethylene oxide"
R. E. Rathbun, D. Y. Tai, R.L. Berglund, R.A. Conway, G.T. Waggy, M.H. Spiegel
1984, Environmental Science & Technology (18) 133-134
No abstract available....
Effect of anisotropy and groundwater system geometry on seepage through lakebeds. 2. Numerical simulation analysis
T. C. Winter, H.O. Pfannkuch
1984, Journal of Hydrology (75) 239-253
The interaction of lakes and groundwater is controlled partly by the geologic framework through which the water flows. Two interrelated geometric factors of the groundwater system that affect flow are overall geometry of the system, and anisotropy of the porous media within the system. Numerical simulation analysis was made for...
A method for sampling waste corn
Robert B. Frederick, Erwin E. Klaas, G.A. Baldassarre, Kenneth J. Reinecke
1984, Journal of Wildlife Management (48) 298-303
No abstract available. ...
Sm-Nd, K-Ar and petrologic study of some kimberlites from eastern United States and their implication for mantle evolution
A. R. Basu, E. Rubury, H. Mehnert, M. Tatsumoto
1984, Contributions to Mineralogy and Petrology (86) 35-44
We provide new data on Sm-Nd systematics, K-Ar dating and the major element chemistry of kimberlites from the eastern United States (mostly from central New York State) and their constituent mineral phases of olivine, clinopyroxene, garnet, phlogopite and perovskite. In addition, we report Nd-isotopes in a few kimberlites from South...
The critical point and two-phase boundary of seawater, 200–500°C
James L. Bischoff, Robert J. Rosenbauer
1984, Earth and Planetary Science Letters (68) 172-180
The two-phase boundary of seawater was determined by isothermal decompression of fully condensed seawater in the range of 200–500°C. The pressure at which phase separation occurred for each isotherm was determined by a comparison of the refractive index of fluid removed from the top and bottom of the reaction vessel....
Gas composition of the January 1983 eruption of Kilauea Volcano, Hawaii
L. P. Greenland
1984, Geochimica et Cosmochimica Acta (48) 193-195
Gas collections were made from a ∼900°C vent both by conventional evacuated-bottle/wet-chemical techniques and by manual pumping of flowthrough bottles. The complete analyses suggest an equilibrium assemblage quenched at 1,010°C, about midway between fountain and vent temperatures. I suggest that the very low CS">CS ratio is...
Heavy minerals in surficial sediments from lower Cook Inlet, Alaska
F. L. Wong
1984, Geo-Marine Letters (4) 25-30
Amphiboles, orthopyroxenes, and clinopyroxenes dominate the heavy mineral suite of surficial sediments in lower Cook Inlet, Alaska. Sources for these sediments include the igneous arc terrane of the northeast Alaska Range, reworked intrabasinal sediments, and local drainages in lower Cook Inlet. The distribution of these deposits is a reflection of...
Methods of Fitting a Straight Line to Data: Examples in Water Resources
Robert M. Hirsch, Edward J. Gilroy
1984, Water Resources Bulletin (20) 705-711
Three methods of fitting straight lines to data are described and their purposes are discussed and contrasted in terms of their applicability in various water resources contexts. The three methods are ordinary least squares (OLS), least normal squares (LNS), and the line of organic correlation (OC). In all three methods...
PHOTOLYSIS OF GOETHITE WITH SORBED LOW MOLECULAR WEIGHT CARBOXYLATES.
Marvin C. Goldberg, Kirkwood M. Cunningham
1984, Conference Paper, National Meeting - American Chemical Society, Division of Environmental Chemistry
Goethite ( alpha -FeOOH) is a common mineral constituent of suspended and bed sediments in aquatic environments. Many types of naturally-occurring organic molecules, including organic carboxylates, are known to sorb to its surface. Carboxylates should be susceptable to photo-oxidation. An experimental program was conducted with systems containing adsorbed films of...
Geochemistry of ferromanganese nodules from DOMES site a, Northern Equatorial Pacific: Multiple diagenetic metal sources in the deep sea
S.E. Calvert, D.Z. Piper
1984, Geochimica et Cosmochimica Acta (48) 1913-1928
The major and minor element composition of ferromanganese nodules from DOMES Site A has been determined by X-ray fluorescence methods. Three phases appear to control the bulk compositions: Mn and Fe oxyhydroxides and aluminosilicates. Relatively wide compositional variations are evident throughout the area. Nodules with high Mn/Fe ratios, high Cu,...
Modification of wave-cut and faulting-controlled landforms
Thomas C. Hanks, R.C. Bucknam, K. R. Lajoie, R. E. Wallace
1984, Journal of Geophysical Research Solid Earth (89) 5771-5790
From a casual observation that the form of degraded fault scarps resembles the error function, this investigation proceeds through an elementary diffusion equation representation of landform evolution to the application of the resulting equations to the modern topography of scarplike landforms. The morphologic observations can be analyzed either in the...
Isotopic evidence for glacial meltwater recharge to the Cambrian-Ordovician aquifer, north-central United States
D. I. Siegel, R.J. Mandle
1984, Quaternary Research (22) 328-335
The chemistry of water in the Cambrian-Ordovician aquifer in six midwestern states has been studied as part of the Northern Midwest Regional Aquifer-System Analysis of the U.S. Geological Survey. Dissolved-solids concentrations generally increase perpendicular to the direction of regional groundwater flow, from less than 400 mg/liter in southeast Minnesota, southwest...
Flooding in northwestern Hillsborough and southern Pasco counties, Florida, in 1979
W. R. Murphy Jr., R. P. Evans, James K. Whalen
1984, Open-File Report 82-96
Heavy rainfall in the late spring and summer of 1979 caused severe flooding in northwestern Hillsborough and southern Pasco counties, including north Tampa. May 7-9 rainfall for some stations had a recurrence interval in excess of 100 years; the August and September rainfall total had a recurrence interval in excess...
Effect of organic contamination upon microbial distributions and heterotrophic uptake in a Cape Cod, Massachusetts, aquifer
R.W. Harvey, R. L. Smith, L. George
1984, Applied and Environmental Microbiology (48) 1197-1202
No abstract available....
QUANTIFICATION OF IN-SITU GAS HYDRATES WITH WELL LOGS.
Timothy S. Collett, Sanjay P. Godbole, Christine Economides
1984, Conference Paper, Preprints - Annual Technical Meeting of the Petroleum Society of CIM
This study evaluates in detail the expected theoretical log responses and the actual log responses within one stratigraphically controlled hydrate horizon in six wells spaced throughout the Kuparuk Oil Field. Detailed examination of the neutron porosity and sonic velocity responses within the horizon is included. In addition, the theoretical effect...
The heat capacities of osumilite from 298.15 to 1000 K, the thermodynamic properties of two natural chlorites to 500 K, and the thermodynamic properties of petalite to 1800 K.
B. S. Hemingway, R. A. Robie, J.A. Kittrick, E.S. Grew, J.A. Nelen, D. London
1984, American Mineralogist (69) 701-710
Modifications to an automated low-T, adiabatic calorimeter are described. Thermodynamic data obtained with this instrument are reported for minerals from metamorphic terrains. (U.S. Bureau of Mines Report of Investigations 8451)-J.A.Z....
A column technique for determining sorption of organic solutes on the lithological structure of aquifers
D.F. Goerlitz
1984, Bulletin of Environmental Contamination and Toxicology (32) 37-44
No abstract available....
Arsenic and antimony in geothermal waters of Yellowstone National Park, Wyoming, USA
R. E. Stauffer, J. M. Thompson
1984, Geochimica et Cosmochimica Acta (48) 2547-2561
A total of 268 thermal spring samples were analyzed for total soluble As using reduced molybdenum-blue; 27 of these samples were also analyzed for total Sb using flame atomic absorption spectrometry. At Yellowstone the ClAs">ClAs atomic ratio is nearly constant among neutral-alkaline springs with Cl >...
Geology of the Devonian black shales of the Appalachian Basin
John B. Roen
1984, Organic Geochemistry (5) 241-254
Black shales of Devonian age in the Appalachian Basin are a unique rock sequence. The high content of organic matter, which imparts the characteristic lithology, has for years attracted considerable interest in the shales as a possible source of energy. The recent energy shortage prompted the U.S. Department of Energy...
Geochemistry of a naturally occurring massive marine gas hydrate
Keith A. Kvenvolden, George E. Claypool, Charles N. Threlkeld, Sloan E. Dendy
1984, Organic Geochemistry (6) 703-713
During Deep Sea Drilling Project (DSDP) Leg 84 a core 1 m long and 6 cm in diameter of massive gas hydrate was unexpectedly recovered at Site 570 in upper slope sediment of the Middle America Trench offshore of Guatemala. This core contained only 5–7% sediment, the remainder being the...
Lu-Hf constraints on the evolution of lunar basalts
Hirokazu Fujimaki, Mistunobu Tatsumoto
1984, Journal of Geophysical Research Solid Earth (89) B445-B458
Very low Ti basalts and green glass samples from the moon show high Lu/Hf ratios and low Hf concentrations. Low-Ti lunar basalts show high and variable Lu/Hf ratios and higher Hf concentrations, whereas high-Ti lunar basalts show low Lu/Hf ratios and high Hf concentrations. KREEP basalts have constant Lu/Hf ratios...
Ferromanganese crust resources in the Pacific and Atlantic Oceans
R.F. Commeau, A. Clark, Chad Johnson, F.T. Manheim, P. J. Aruscavage, C.M. Lane
1984, Conference Paper, Oceans '84 : Conference record : Industry, government, education - Designs for the future
Ferromanganese crusts on raised areas of the ocean floor have joined abyssal manganese nodules and hydrothermal sulfides as potential marine resources. Significant volumes of cobalt-rich (about 1% Co) crusts have been identified to date within the US Exclusive Economic Zone (EEZ) in the Central Pacific: in the NW Hawaiian Ridge...
Seismic reflection studies of sinkholes and limestone dissolution features on the northeastern Florida shelf
Peter Popenoe, F. A. Kohout, F.T. Manheim
Beck Barry F., editor(s)
1984, Conference Paper, Sinkholes: Their geology, engineering, and environmental impact
High-resolution seismic-reflection profiles show that the shelf off northern Florida is underlain by solution deformed limestone of Oligocene, Eocene, Paleocene and late Cretaceous age. Dissolution and collapse features are widely scattered. They are expressed in three general forms: as sinkholes that presently breach the sea floor, such as Red Snapper...
Isotope composition of sulphate in acid mine drainage as measure of bacterial oxidation
B.E. Taylor, M.C. Wheeler, D. Kirk Nordstrom
1984, Nature (308) 538-541
The formation of acid waters by oxidation of pyrite-bearing ore deposits, mine tailing piles, and coal measures is a complex biogeochemical process and is a serious environmental problem. We have studied the oxygen and sulphur isotope geochemistry of sulphides, sulphur, sulphate and water in the field and in experiments to...
