Hydrogeology and analysis of aquifer characteristics in west-central Pinellas County, Florida
J. C. Broska, H.L. Barnette
1999, Open-File Report 99-185
The U.S. Geological Survey, in cooperation with Pinellas County, Florida, conducted an investigation to describe the hydrogeology and analyze the aquifer characteristics in west-central Pinellas County. A production test well and four monitor wells were constructed in Pinellas County at Walsingham Park during 1996-97. Water-quality sampling, static and dynamic borehole...
Geologic map of Precambrian Rocks, Rawhide Buttes West quadrangle and part of Rawhide Buttes East quadrangle, Hartville Uplift, Goshen and Niobrara Counties, Wyoming
W. C. Day, P.K. Sims, G. L. Snyder, A.B. Wilson, T. L. Klein, Z. E. Peterman, Kiyoto Futa, R. E. Zartman
1999, IMAP 2635
No abstract available....
Radium in ground water from public-water supplies in northern Illinois
Robert T. Kay
1999, Fact Sheet 137-99
Concentrations of the naturally occurring radioactive isotopes radium-226 and radium-228 in excess of the U.S. Environmental Protection Agency standard for drinking water of 5 picocuries per liter have been detected in water from deep aquifers used for public supply that underly parts of northern Illinois. Radium, a known carcinogen, has...
Federally owned coal and federal lands in the Colorado Plateau region
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 145-99
Federally owned coal plays a major role in the energy supply of the United States. About 1.1 billion tons of coal were produced in the United States in 1997 (U.S. Department of Energy, 1998). About 30...
Postglacial lahars and potential hazards in the White Salmon River system on the southwest flank of Mount Adams, Washington
James W. Vallance
1999, Bulletin 2161
Mount Adams, a stratovolcano in southwestern Washington State, formed during Pleistocene time and reached roughly its present size before the end of the Fraser glaciation, which occurred between 25,000 and 12,000 years ago. Since the last glaciation, Mount Adams has erupted at least nine times, producing eight peripheral lava flows...
Hydrologic and water-quality data for surface water, ground water, and springs in north-central Park County, Colorado, April 1997–November 1998
B. W. Bruce, R. A. Kimbrough
1999, Open-File Report 99-183
No abstract available....
Modeling the effects of land use and climate change on riverine smallmouth bass
James T. Peterson, Thomas J. Kwak
1999, Ecological Applications (9) 1391-1404
Anthropogenic changes in temperature and stream flow, associated with watershed land use and climate change, are critical influences on the distribution and abundance of riverine fishes. To project the effects of changing land use and climate, we modeled a smallmouth bass (Micropterus dolomieu) population in a midwestern USA, large river–floodplain...
Summary of ground-water data for Tutuila and Aunuu, American Samoa, for October 1987 through September 1997
Scot K. Izuka
1999, Open-File Report 99-252
Ground-water and rainfall data for the period October 1987 through September 1997 from Tutuila and Aunuu, American Samoa, are plotted in time-series graphs and summarized. The data include pumpage and chloride concentrations from 53 production wells on Tutuila, including 5 new wells that were put into production between October 1996...
A plan for assessing the occurrence and distribution of methyl tert-butyl ether and other volatile organic compounds in drinking water and ambient ground water in the Northeast and Mid-Atlantic regions of the United States
Stephen J. Grady, George D. Casey
1999, Open-File Report 99-207
A plan to assess the occurrence and distribution of methyl tert-butyl ether (MTBE) and other volatile organic compounds (VOCs) in drinking water and ambient ground water in the Northeast and Mid-Atlantic regions of the United States was designed to meet two primary objectives. This study will provide the U.S. Environmental...
Aeromagnetic and Gravity Maps of the Central Marysvale Volcanic Field, Southwestern Utah
David L. Campbell, Thomas A. Steven, Charles G. Cunningham, Peter D. Rowley
1999, IMAP 2645-B
Gravity and aeromagnetic features in the Marysvale volcanic field result from the composite effects of many factors, including rock composition, style of magmatic emplacement, type and intensity of rock alteration, and effects of structural evolution. Densities and magnetic properties measured on a suite of rock samples from the Marysvale volcanic field...
Preliminary mineral resource assessment of selected industrial and collector minerals of the Prescott National Forest, Arizona
J. D. Bliss
1999, Open-File Report 99-305
Water-quality and bottom-sediment-chemistry data for Left Hand Valley Reservoir, Boulder County, Colorado, January-August 1998
R. A. Kimbrough
1999, Open-File Report 99-192
No abstract available....
1997 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory
Robert G. McGimsey, Kristi L. Wallace
1999, Open-File Report 99-448
The Alaska Volcano Observatory (AVO) monitors over 40 historically active volcanoes along the Aleutian Arc. Twenty are seismically monitored and for the rest, the AVO monitoring program relies mainly on pilot reports, observations of local residents and ship crews, and daily analysis of satellite images. In 1997, AVO responded to...
Chesapeake Bay habitat criteria scores and the distribution of submersed aquatic vegetation in the tidal Potomac River and Potomac Estuary, 1983-1997
J.M. Landwehr, J. T. Reel, N. B. Rybicki, H. Ruhl, Virginia Carter
1999, Open-File Report 99-219
The Chesapeake Bay Program has identified habitat requirements for the restoration of submersed aquatic vegetation (SAV) in the Chesapeake Bay estuary and tidal reaches of contributing river systems conditioned on the salinity regime of a specific location. The tidal Potomac River and Potomac Estuary is an important component of the...
Hydrologic consequences of hot-rock/snowpack interactions at Mount St. Helens Volcano, Washington
Thomas C. Pierson
1999, Professional Paper 1586
Emplacement of hot volcanic debris onto a thick snowpack can trigger hazardous rapid flows of sediment (including ice grains) and water, which can travel far beyond the flanks of a volcano. Five papers in this volume document aspects of rapid-snowmelt events that occurred in Mount St. Helens between 1982 and...
Estimated hydraulic properties for the surficial- and bedrock-aquifer system, Meddybemps, Maine
Forest P. Lyford, Stephen P. Garabedian, Bruce P. Hansen
1999, Open-File Report 99-199
Analytical and numerical-modeling methods were used to estimate hydraulic properties of the aquifer system underlying the Eastern Surplus Company Superfund Site in Meddybemps, Maine. Estimates of hydraulic properties are needed to evaluate pathways for contaminants in ground water and to support evaluation and selection of remediation measures for contaminated ground...
National Elevation Dataset
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 148-99
The National Elevation Dataset (NED) is a new raster product assembled by the U.S. Geological Survey (USGS). The NED is designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections were made in the NED assembly process to minimize artifacts,...
An assessment of seismic monitoring in the United States; requirement for an Advanced National Seismic System
Water Resources Division, U.S. Geological Survey
1999, Circular 1188
This report assesses the status, needs, and associated costs of seismic monitoring in the United States. It sets down the requirement for an effective, national seismic monitoring strategy and an advanced system linking national, regional, and urban monitoring networks. Modernized seismic monitoring can provide alerts of imminent strong earthquake shaking;...
U.S. Geological Survey programs in Florida, 1999
Water Resources Division, U.S. Geological Survey
1999, Open-File Report 99-196
The safety, health, and economic well-being of Florida?s citizens are important to the U.S. Geological Survey (USGS), which is involved in water-related, geologic, biological, land use, and mapping issues in many parts of the State. The USGS office in Tallahassee acts as the liaison for all studies conducted by USGS...
Historic trail map of the Denver 1 degree by 2 degrees Quadrangle, central Colorado
G. R. Scott
1999, IMAP 2639
New York
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 033-99
Evaluation of Colletotrichum gloeosporioides for biological control of Miconia calvescens in Hawaii
E. M. Killgore, L. S. Sugiyama, R. W. Barreto, D.E. Gardner
1999, Plant Disease (83) 964
Miconia calvescens (Melastomataceae), from the Neotropics, is a noxious forest weed in Hawaii. We evaluated an isolate of Colletotrichum gloeosporioides that causes leaf spots on Miconia spp. in Brazil for its potential in biological control. Hawaii has no native Melastomataceae genera but does have members of 12 introduced genera....
Nomenclature of the micas
M. Rieder, G Cavazzini, Y.S. D’yakonov, V.A. Frank-Kamenetskii, G Gottardi, S. Guggenheim, P.V. Koval, G Muller, A.M.R. Neiva, E.W. Radoslovich, J.-L. Robert, F.P Sassi, H. Takeda, David R. Wones
1999, Mineralogical Magazine (63) 267-279
End-members and species defined with permissible ranges of composition are presented for the true micas, the brittle micas, and the interlayer-deficient micas. The determination of the crystallochemical formula for different available chemical data is outlined, and a system of modifiers and suffixes is given to allow the expression of unusual...
Shedding of Renibacterium salmoninarum by infected chinook salmon Oncorhynchus tschawytscha
C.L. McKibben, R.J. Pascho
1999, Diseases of Aquatic Organisms (38) 75-79
Laboratory studies of the transmission and pathogenesis of Renibacterium salmoninarum may describe more accurately what is occurring in the natural environment if test fish are infected by waterborne R. salmoninarum shed from infected fish. To quantify bacterial shedding by chinook salmon Oncorhynchus tschawytscha at 13??C in freshwater, groups of fish...
Radioisotope tracer studies of inorganic carbon and Ca in microbially derived CaCO3
Kimberly K. Yates, Lisa L. Robbins
1999, Geochimica et Cosmochimica Acta (63) 129-136
Microbial calcification significantly impacts the cycling and deposition of inorganic carbon. This research employs 45Ca and 14C techniques as radioisotopic tracers to examine the role of cellular cycling of Ca2+ and inorganic carbon in CaCO3 precipitation by the unicellular green alga Nannochloris atomus. Implications of the effects of these physiological...
