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...
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. ...
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...
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...
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...
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 data used to relate nutrient input to water quality in the Chesapeake Bay watershed
John W. Brakebill, Stephen D. Preston, Sarah K. Martucci
2001, Open-File Report 2001-251
Digital data sets compiled by the U.S. Geological Survey were used as input for a collection of Spatially Referenced Regressions On Watershed (SPARROW) attributes for the Chesapeake Bay region including parts of Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and the District of Columbia. These regressions use a nonlinear...
Land-use classes to characterize watersheds and unsaturated zones in North Carolina
Silvia Terziotti, Jo Leslie Eimers
2001, Open-File Report 01-493
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...
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
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...
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...
Seismic design parameters - A user guide
E. V. Leyendecker, A.D. Frankel, K.S. Rukstales
2001, Open-File Report 2001-437
The 1997 NEHRP Recommended Provisions for Seismic Regulations for New Buildings (1997 NEHRP Provisions) introduced seismic design procedure that is based on the explicit use of spectral response acceleration rather than the traditional peak ground acceleration and/or peak ground velocity or zone factors. The spectral response accelerations are obtained from...
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
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...
Well logs and core data from selected cored intervals, National Petroleum Reserve, Alaska
Philip H. Nelson, Joyce E. Kibler
2001, Open-File Report 2001-167
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government....
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,...
Daily and seasonal variability of pH, dissolved oxygen, temperature, and specific conductance in the Colorado River between the forebay of Glen Canyon Dam and Lees Ferry, northeastern Arizona, 1998-99
Marilyn E. Flynn, Robert J. Hart, G. Richard Marzolf, Carl J. Bowser
2001, Open-File Report 2001-222
The productivity of the trout fishery in the tailwater reach of the Colorado River downstream from Glen Canyon Dam depends on the productivity of lower trophic levels. Photosynthesis and respiration are basic biological processes that control productivity and alter pH and oxygen concentration. During 1998?99, data were collected to aid...
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...
Map Showing Susceptibility to Earthquake-Induced Landsliding, San Juan Metropolitan Area, Puerto Rico
Marilyn Santiago, Matthew C. Larsen
2001, Open-File Report 2001-39
Analysis of slope angle and rock type using a geographic information system indicates that about 68 percent of the San Juan metropolitan area has low to no susceptibility to earthquake-induced landslides. This is at least partly due to the fact that 45 percent of the San Juan metropolitan area is...
Productivity measurements of benthic communities in Biscayne National Park as an indication of ecosystem health
Robert B. Halley, K. K. Yates
2001, Open-File Report 2001-91
Watershed characteristics rating for North Carolina
Silvia Terziotti, Jo Leslie Eimers, J. Curtis Weaver
2001, Open-File Report 01-490
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...
Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
Angela S. Jayko, Ray E. Wells, R. W. Givler, J.S. Fenton, M. Sinor
2001, Open-File Report 2001-226
The Dixonville 7.5 minute quadrangle is situated near the edge of two major geologic and tectonic provinces the northernmost Klamath Mountains and the southeastern part of the Oregon Coast Ranges (Figure 1). Rocks of the Klamath Mountains province that lie within the study area include ultramafic, mafic, intermediate and siliceous...
Annotated bibliography of the U.S. Geological Survey Front Range Infrastructure Resources Project, 1996-2001
Daniel H. Knepper
2001, Open-File Report 2001-302
Hawaii Beach Monitoring Program: Profile locations
Ann E. Gibbs, Bruce M. Richmond, Charles H. Fletcher, Kindra P. Hillman
2001, Open-File Report 01-308
Coastal erosion is widespread and locally severe in Hawaii and other low-latitude areas. Typical erosion rates in Hawaii are in the range of 15 to 30 cm/yr (0.5 to 1 ft/yr; Hwang, 1981; Sea Engineering, Inc., 1988; Makai Ocean Engineering, Inc. and Sea Engineering, Inc.,1991). Recent studies on Oahu (Fletcher...
