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Pollen and geochronological data from South Florida; Taylor Creek Site 2
Debra A. Willard, C. W. Holmes
1997, Open-File Report 97-35
Many recent changes in plant and animal communities of the Everglades have been attributed to human alteration of the environment, such as changes in the hydrologic regime and increased agricultural activity, but cause-and-effect relationships between environmental and biotic changes have not been documented scientifically. This report on pollen and geochronological...
Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay
G. L. Brewster-Wingard, S. E. Ishman, Debra A. Willard, Lucy E. Edwards, C. W. Holmes
1997, Open-File Report 97-460
The fauna and flora preserved in two cores, 19A and 19B, from the south side of Russell Bank (N 25 03.831', W 80 37.486') in north-central Florida Bay, Everglades National Park, Florida, record a history of environmental change over the last century. The benthic foraminifera and molluscs indicate fluctuating salinities...
Preliminary geologic map of the San Fernando 7.5' quadrangle, southern California: A digital database
R.F. Yerkes
1997, Open-File Report 97-163
The city of San Fernando sits atop a structurally complex, sedimentologically diverse, and tectonically evolving late Tertiary-Quaternary basin situated within the Transverse Ranges of southern California. The surrounding San Fernando Valley (SFV) contains the headwaters of the Los Angeles River and its tributaries. Prior to the advent of flood control,...
Hydrogeologic data for the Blaine aquifer and associated units in southwestern Oklahoma and northwestern Texas
D. L. Runkle, D. L. Bergman, R.S. Fabian
1997, Open-File Report 97-50
This report is a compilation of hydrogeologic data collected for an areal ground-water investigation of the Blaine aquifer and associated units in southwestern Oklahoma and northwestern Texas. The study area includes parts of Greer, Harmon, and Jackson counties in Oklahoma and parts of Childress, Collingsworth, Hall, Hardeman, and Wilbarger counties...
Potentiometric Surface of the Aquia Aquifer in southern Maryland, September 1995
Stephen E. Curtin, David C. Andreasen, Frederick K. Mack
1997, Open-File Report 96-620
A map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in southern Maryland during September 1995 was prepared from water-level measurements in 80 wells. The potentiometric surface was above sea level near the northwestern boundary and outcrop area of the aquifer in...
Study plan for urban stream indicator sites of the National Water-Quality Assessment Program
T. J. Lopes, C. V. Price
1997, Open-File Report 97-25
Urban Indicator Sites are one component of the U.S. Geological Survey?s National Water- Quality Assessment (NAWQA) Program. The objectives of monitoring at the Urban Indicator Sites are to: (1) characterize stream quality from drainage basins with predominantly residential and commercial land use, and (2) determine which selected natural and human...
Digital-map grids of mean-annual precipitation for 1961-90, and generalized skew coefficients of annual maximum streamflow for Oklahoma
A. H. Rea, R. L. Tortorelli
1997, Open-File Report 97-574
This digital report contains two digital-map grids of data that were used to develop peak-flow regression equations in Tortorelli, 1997, 'Techniques for estimating peak-streamflow frequency for unregulated streams and streams regulated by small floodwater retarding structures in Oklahoma,' U.S. Geological Survey Water-Resources Investigations Report 97-4202. One data set is a...