Maryland Ground-Water Observation Well Network, 2001
Water Resources Division, U.S. Geological Survey
2001, Open-File Report 2001-248
MDNET is a point coverage that represents the locations and names of a network of observation wells for the State of Maryland. Additional information on water conditions at these sites can be found in the Ground-Water Site Inventory System (GWSI) database, which is maintained by the U.S. Geological Survey....
Digital geologic map and database of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, District of Columbia, Virginia, Maryland, and West Virginia
C. Scott Southworth, David K. Brezinski, Randall C. Orndorff, Peter G. Chirico, Kerry M. Lagueux
2001, Open-File Report 2001-188-A
The Chesapeake and Ohio (CO) Canal National Historical Park is unique in that it is the only land within the National Park system that crosses 5 physiographic provinces along a major river. From Georgetown, District of Columbia (D.C.) to Cumberland, Maryland (Md.), the CO Canal provides an opportunity to examine...
Maryland Water-Use Data, 1998
Water Resources Division, U.S. Geological Survey
2001, Open-File Report 2001-247
MDWU98 is a point coverage that represents the locations of wells for...
Changes in riparian vegetation in the Southwestern United States: Historical Changes along the Mojave River, California
Robert H. Webb, Diane E. Boyer, Kristin H. Berry
2001, Open-File Report 2001-245
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary...
Seven-year phenological record of the Alaskan ecoregions derived from advanced very high resolution radiometer normalized difference vegetation index data
Carl J. Markon
2001, Open-File Report 2001-11
Seasonal properties of vegetation covering northern boreal and arctic landscapes are considered important as input to numerous climate change studies. In this study, multitemporal phenological characteristics of Alaskan vegetation were studied for the State as a whole, and 19 of 20 ecoregions were studied using seasonally truncated, composited advanced very...
Measurement of delta13C and delta18O Isotopic Ratios of CaCO3 by a Thermoquest Finnigan GasBench II Delta Plus XL Continous Flow Isotope Ratio Mass Spectrometer with Application to Devils Hole Core DH-11 Calcite
Kinga M. Revesz, Jurate Maciunas Landwehr, Jaroslav Edward Keybl
2001, Open-File Report 2001-257
A new method was developed to analyze the stable carbon and oxygen isotope ratios of small samples (400?20 ?g) of calcium carbonate. This new method streamlines the classical phosphoric acid - calcium carbonate (H3PO4 - CaCO3) reaction method by making use of a Thermoquest-Finnigan GasBench II preparation device and a...
Visualization of drifting buoy deployments on St. Clair River near public water intakes - October 3-5, 2000
David J. Holtschlag, Stephen S. Aichele
2001, Open-File Report 2001-17
St. Clair River is a connecting channel of the Great Lakes between Lake Huron and Lake St. Clair. The river forms part of the international boundary between the United States and Canada in the eastern Lower Peninsula of Michigan and southern Ontario. Drifting buoys were deployed to help investigate flow...
Geochemical baselines of stream and spring waters from areas underlain by Permian and Pennsylvanian rocks, including evaporites, and potential environmental damage in the Eagle Valley, Colorado
William R. Miller
2001, Open-File Report 2001-362
No abstract available. ...
Ground-water contribution classes to characterize watersheds in North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-488
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was...
The difference between the potentiometric surfaces of the lower Patapsco aquifer, September 1990 and September 1999 in southern Maryland
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-211
This report presents a map showing the change in the potentiometric surface of the Lower Patapsco aquifer in the Lower Patapsco Formation of Cretaceous age in Southern Maryland for September 1990 and September 1999. The map, based on water?level measurements in 52 wells, shows that the change of the potentiometric...
Chinese mitten crab surveys of San Joaquin River basin and Suisun Marsh, California, 2000
Jason T. May, Larry R. Brown
2001, Open-File Report 2001-396
Juvenile Chinese mitten crabs (Eriocheir sinensis) are known to use both brackish and freshwater habitats as rearing areas. The objectives of this study were to examine the habitat use and potential effects of mitten crabs in the freshwater habitats of the San Joaquin River drainage up-stream of the Sacramento-San Joaquin...
Geochemistry of selected mercury mine-tailings in the Parkfield Mercury District, California
James J. Rytuba, Boris B. Kotlyar, Gregg Wilkerson, Jerry Olson
2001, Open-File Report 2001-336
The Parkfield mercury district is located in the southern part of the California Coast Range mercury mineral belt and contains three silica-carbonate-type mercury deposits that have had significant mercury production. Mercury was first produced in the district in 1873, but the main period of production occurred from 1915-1922. Total production...
Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-204
This report presents a map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 1999. The map is based on water-level measurements in 85 wells. The potentiometric surface was above sea level near the...
Energy resources and changing land use, Front Range of Colorado: AAPG-EMD field trip guide, in association with the 2001 AAPG-EMD annual meeting
Neil S. Fishman, Stephen B. Roberts
2001, Open-File Report 2001-172
Over the past 30 years, communities in the Northern Front Range of Colorado have experienced tremendous urban and commercial growth rivaling or surpassing that in most other parts of the United States. Much of this growth coincides with areas underlain by critically needed natural resources (such as oil, natural gas,...
The difference between the potentiometric surfaces of the Aquia aquifer, September 1982 and September 1999 in southern Maryland
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-205
This report presents a map showing the change in the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland for September 1982 and September 1999. The map, based on water level measurements in 67 wells, shows that the change of the potentiometric...
Changes in Riparian Vegetation in the Southwestern United States: Repeat Photography at Gaging Stations in Arizona
Robert H. Webb, Diane E. Boyer
2001, Open-File Report 2001-323
TopoDrive and ParticleFlow--Two computer models for simulation and visualization of ground-water flow and transport of fluid particles in two dimensions
Paul A. Hsieh
2001, Open-File Report 2001-286
This report serves as a user?s guide for two computer models: TopoDrive and ParticleFlow. These two-dimensional models are designed to simulate two ground-water processes: topography-driven flow and advective transport of fluid particles. To simulate topography-driven flow, the user may specify the shape of the water table, which bounds the top...
Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999
Stephen E. Curtin, David C. Andreasen, Judith C. Wheeler
2001, Open-File Report 2001-208
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary...
Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through 2000
Ralph K. DeWees
2001, Open-File Report 2001-184
The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25 to 40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompass the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the...
Four regional seismic lines: National Petroleum Reserve - Alaska (Supplement to U.S. Geological Survey Open-File Report 00-286)
J. J. Miller, Warren F. Agena, Myung W. Lee, F. N. Zihlman, J. A. Grow, D. J. Taylor, Michele Killgore, H. L. Oliver
2001, Open-File Report 2001-337
Surface water quality-assurance plan for the South Carolina District of the U.S. Geological Survey
Theodore W. Cooney
2001, Open-File Report 2001-121
This District Surface Water Quality-Assurance Plan documents the standards, policies, and procedures used by the South Carolina District for activities related to the collection, processing, storage, analysis, and publication of surface-water data....
Radiochemical and chemical constituents in water from selected wells south of the Idaho National Engineering and Environmental Laboratory, Idaho
Roy C. Bartholomay, B.J. Tucker, L.L. Knobel, L. J. Mann
2001, Open-File Report 2001-138
The U.S. Geological Survey and the Bureau of Land Management, in cooperation with the U.S. Department of Energy, sampled water from five stock wells to monitor water quality of the Snake River Plain aquifer south of the Idaho National Engineering and Environmental Laboratory. The samples were analyzed for selected radiochemical...
Seismic hazard curves and uniform hazard response spectra for the United States - A user guide
A.D. Frankel, E. V. Leyendecker
2001, Open-File Report 2001-436
The Evolution of the Lower Missouri River: Preliminary Results of NMD Research at Lisbon Bottom
Jeffrey Spooner
2001, Open-File Report 2001-368
The purpose of this investigation is to determine the relationship between the geomorphology of Lisbon Bottom and the spatial and temporal distribution of its wetlands. The project is focused specifically on the Quaternary geology of the river valley and the relationship between the valley's alluvial architecture and the hydrogeology of...
Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River corridor, Distric of Columbia, Maryland, West Virginia, and Virginia
C. Scott Southworth, David K. Brezinski, Randall C. Orndorff, Peter G. Chirico, Kerry M. Lagueux
2001, Open-File Report 2001-188-B
