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Page 4885, results 122101 - 122125

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Not all publications have extents, not all extents are completely accurate
Hydrology of carbonate aquifers in southwestern Linn County and adjacent parts of Benton, Iowa, and Johnson Counties, Iowa
Kenneth Wahl, Bill J. Bunker
1986, Water Supply Bulletin 15
Groundwater is the major source of water in Linn County and the surrounding area. Approximately 90 percent of the groundwater production is from Silurian, Devonian, and Quaternary aquifers. The Silurian and Devonian aquifers consist of limestone and dolomite with minor shale beds, which have a regional dip to the southwest of...
Geology and geochemistry of the Deer Trail Pb-Zn-Ag-Cu manto deposits, Marysvale District, west-central Utah
D.W. Beaty, C. G. Cunningham, R.O. Rye, T. A. Steven, E. Gonzalez- Urien
1986, Economic Geology (81) 1932-1952
Strata-bound sulphide replacement bodies in the Deer Trail mine are sinuous pipes in carbonate beds, approximately localized by an anticlinal axis, and radiate from a fault across the lower part of the Permian Toroweap formation. Indistinct sericitic envelopes provide a K/Ar age of 14 m.y., correlative with barren, altered volcanic...
Rock-water interaction in ash-flow tuffs (Yucca Mountain, Nevada, USA)- The record from uranium studies
Robert A. Zielinski, Charles A. Bush, R.W. Spengler, Barney J. Szabo
1986, Uranium (2) 361-386
Forty-eight core samples of ash-flow tuffs from Yucca Mountain, NV, were selected for comparative analysis by uranium-based methods to estimate past interaction with oxidizing water. Results aid in the selection of hydrologically isolated host rocks for radioactive waste disposal. U abundances were consistently more variable than thorium in whole rocks,...
Cobalt-rich ferromanganese crusts from the Central Pacific
James R. Hein, Frank T. Manheim, William C. Schwab
1986, Conference Paper, Proceedings of the Offshore Technology Conference
Ferromanganese crusts coat most hard substrates on seamounts, ridges, and plateaus in the centralPacific basin. Crusts from less than 2500 m water depth are rich in Mn, Co, Ni, Pb, and Pt. Samples we collected from the EEl of the Hawaiian, Johnston, Palmyra, and Marshall Islands are discussed. Necker Ridge...
Ferromanganese crusts
Frank T. Manheim, James R. Hein
1986, Conference Paper, Proceedings, exclusive economic zone symposium, exploring the new ocean frontier
No abstract available....
Sedimentology and clast orientations of the 18 May 1980 southwest- flank lahars, Mount St. Helens, Washington
Jon J. Major, B. Voight
1986, Journal of Sedimentary Petrology (691)
Three lahars that resulted from the flow transformation of an inflated pyroclastic surge caused by ejected lithic debris and hydrothermal water during the cataclysmic Mount St. Helens eruption of 18 May 1980 deposited about 1 x 106 m3 of massive, poorly sorted, poorly graded volcaniclastic sediment on the SW flank (SWF). Downflow changes in mean grain...
Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California
Michael K. Saiki, Christopher J. Schmitt
1986, Archives of Environmental Contamination and Toxicology (15) 357-366
Samples of bluegills (Lepomis macrochirus) and common carp (Cyprinus carpio) collected from the San Joaquin River and two tributaries (Merced River and Salt Slough) in California were analyzed for 21 organochlorine chemical residues by gas chromatography to determine if pesticide contamination was confined to downstream sites...
Significance of Klamath rocks between the Franciscan Complex and Coast Range ophiolite, northern California
A. S. Jayko, Blake, R.N. Brothers
1986, Tectonics (5) 1055-1071
Small fault‐bounded slabs of low‐grade (prehnite‐pumpellyite‐bearing) slate, metagraywacke, and greenstone occur between the Coast Range ophiolite and South Fork Mountain Schist for at least 60 km south of the Klamath Mountains, northern California. The metagraywacke slabs differ from typical Franciscan Complex metagraywacke to the west by the absence of blueschist‐facies...
Cretaceous paleoceanography of the western North Atlantic Ocean
Michael A. Arthur, Walter E. Dean
1986, Book chapter, The Western North Atlantic Region
In this paper we summarize available information on the Cretaceous lithostratigraphy and paleoceanography of the western North Atlantic. The data and some of our interpretations draw in large part on papers published in the Deep Sea Drilling Project (DSDP) volumes. We have attempted to cite relevant references when possible, but...
Morphology and age of fault scarps in the Rio Grande Rift, south-central Colorado
Steven M. Colman, William P. Rogers, R. M. Kirkham
William P. Rogers, Robert M. Kirkham, editor(s)
1986, Report, Contributions to Colorado Seisrnicity and Tectonics: A 1986 Update
Fault scarps in the Rio Grande rift of Colorado provide most of the evidence of paleoseismicity in the state, and are thus a major focus of assessments of earthquake hazards. Critical components of such assessments are the ages of past faulting events; age control is scarce and generally coarse for...
Resource potential of the western North Atlantic Basin
William P. Dillon, Frank T. Manheim, L.F. Jansa, Gudmundur Palmason, Brian E. Tucholke, Richard S. Landrum
1986, Book chapter, Geology of North America: The Western North Atlantic Region
We here consider the petroleum resources only of the off shelf portion of the western North Atlantic Ocean. Very little information is available for this region; off the eastern United States, only four petroleum exploration holes have been drilled in one restricted area seaward of the shelf, off the Baltimore...
Tectonic evolution of Northwest California and Southwest Oregon
M. Clark Blake Jr., Angela S. Jayko
1986, Bulletin de la Société Géologique de France (11) 921-930
Tectonostratigraphic terrances in northwest California and southwest Oregon record a complex history of subduction, collision, and transform faulting. During the late Jurassic Nevadan orogeny, the Elder Creek-Snow Camp and western Klamath terranes were imbricated during collision of an island-arc system with the continental margin. Subsequent collisions are recorded in the...