Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Lithostratigraphy, petrography, biostratigraphy, and strontium-isotope stratigraphy of the surficial aquifer system of western Collier County, Florida Lithostratigraphy, petrography, biostratigraphy, and strontium-isotope stratigraphy of the surficial aquifer system of western Collier County, Florida
In 1996, seven cores were recovered in western Collier County, southwestern Florida, to acquire subsurface geologic and hydrologic data to support ground-water modeling efforts. This report presents the lithostratigraphy, X-ray diffraction analyses, petrography, biostratigraphy, and strontium-isotope stratigraphy of these cores. The oldest unit encountered in the study cores is an...
Authors
Lucy E. Edwards, S.D. Weedman, Kathleen Simmons, T.M. Scott, G. L. Brewster-Wingard, S. E. Ishman, N.M. Carlin
Geology of the Black Mingo Group (Paleocene) in the Kingstree and St. Stephen areas of South Carolina Geology of the Black Mingo Group (Paleocene) in the Kingstree and St. Stephen areas of South Carolina
Paleocene vertebrate remains from the areas of Kingstree and St. Stephen, South Carolina, come from the Rhems and Williamsburg formations of the Black Mingo Group. Sedimentary textures and fossils indicate that both units accumulated in shallow, nearshore marine, lagoonal, and deltaic depositional environments. Calcareous nannofossils and dinoflagellates indicate that the vertebrate...
Authors
Robert E. Weems, Laurel M. Bybell
Evaluation of geologic radon potential in two regions in southwestern and southern Poland Evaluation of geologic radon potential in two regions in southwestern and southern Poland
No abstract available.
Authors
Ryszard Strzelecki, Stanislaw Wolkowicz, Wojciech Wolkowicz, Kalina Mamont-Ciesa, D.G. Mose, Zoltan Szabo, Tamara I. Ivahnenko, G.W. Mushrush
Oxic limestone drains for treatment of dilute, acidic mine drainage Oxic limestone drains for treatment of dilute, acidic mine drainage
Limestone treatment systems can be effective for remediation of acidic mine drainage (AMD) that contains moderate concentrations of dissolved O2 , Fe3+ , or A13+ (1‐5 mg‐L‐1 ). Samples of water and limestone were collected periodically for 1 year at inflow, outflow, and intermediate points within underground, oxic limestone drains (OLDs) in Pennsylvania to evaluate the transport of...
Authors
Charles A. Cravotta
Erosion, weathering, and sedimentation Erosion, weathering, and sedimentation
This chapter explains how a variety of nuclides have been applied to catchments throughout the world. One of the most exciting new approaches for quantifying the rate at which catchments erode is the measurement of in situ produced cosmogenic nuclides. The commonly applied nuclides for erosion rate measurements are 3He, 10Be, 26A1, and 36C1. Use of such nuclides was restricted to...
Authors
Paul R. Bierman, Achim Albrecht, Michael H. Bothner, Erik Thorson Brown, Thomas D. Bullen, Leda-Beth Gray, Laurent Turpin
Use of acoustic methods for classification and monitoring of habitat complexity: Description of approaches Use of acoustic methods for classification and monitoring of habitat complexity: Description of approaches
No abstract available.
Authors
P.J. Auster, C. Michalopoulos, R. Robertson, P. C. Valentine, K. Joy, V.A. Cross
Ground-water age and atmospheric tracers: Simulation studies and analysis of field data from the Mirror Lake site, New Hampshire Ground-water age and atmospheric tracers: Simulation studies and analysis of field data from the Mirror Lake site, New Hampshire
The use of environmental tracers in characterization of ground-water systems is investigated through mathematical modeling of ground-water age and atmospheric tracer transport, and by a field study at the Mirror Lake site, New Hampshire. Theory is presented for modeling ground-water age using the advective-dispersive transport equation. The transport equation includes a zero-order source...
Authors
Daniel J. Goode
Mapping U.S. continental shelves Mapping U.S. continental shelves
No abstract available.
Authors
J.V. Gardner, Bradford Butman, L. A. Mayer, J.H. Clarke
Origins and development of the west-central Florida barrier island system: Interpretations of the past and recommendations for the future Origins and development of the west-central Florida barrier island system: Interpretations of the past and recommendations for the future
No abstract available.
Authors
G. Gelfenbaum, G. R. Brooks, R. A. Davis, L. J. Doyle, A. E. Gibbs, A. C. Hine, S. D. Locker, D.C. Twichell, Robert H. Weisberg
Estimation of tiger densities in India using photographic captures and recaptures Estimation of tiger densities in India using photographic captures and recaptures
The tiger (Panthera tigris) is an endangered, large felid whose demographic status is poorly known across its distributional range in Asia. Previously applied methods for estimating tiger abundance, using total counts based on tracks, have proved unreliable. Lack of reliable data on tiger densities not only has constrained our ability to understand the ecological factors shaping...
Authors
K. Ullas Karanth, James D. Nichols
Are adult nonbreeders prudent parents? The kittiwake model Are adult nonbreeders prudent parents? The kittiwake model
Understanding evolutionary consequences of intermittent breeding (nonbreeding in individuals that previously bred) requires investigation of the relationships between adult breeding state and two demographic parameters: survival probability and subsequent breeding probability. One major difficulty raised by comparing the demographic features of breeders and nonbreeders as estimated from...
Authors
Emmanuelle Cam, James E. Hines, J. #NAME? Monnat, James D. Nichols, Etienne Danchin
Selected geochemical data for the Dillon BLM Resource Area, including the Virginia City mining district, Madison and Beaverhead Counties, southwest Montana : mineral-resource and mineral-environmental considerations Selected geochemical data for the Dillon BLM Resource Area, including the Virginia City mining district, Madison and Beaverhead Counties, southwest Montana : mineral-resource and mineral-environmental considerations
No abstract available.
Authors
Jane Marie Hammarstrom, Bradley S. Van Gosen