Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Reconnaissance surficial geologic map of the mountainous parts of Loudoun County, Virginia
No abstract available.
Authors
Robert B. Jacobson, R. C. McDowell, D. J. Milton, Wayne L. Newell, J. S. Pomeroy, J. S. Schindler, C. S. Southworth
Approximate water-level changes in wells completed in the Chicot and Evangeline aquifers, 1977-90 and 1989-90, and measured compaction, 1973-December 1989, in the Houston-Galveston region, Texas
This report is one in a series of reports that depict water-level changes since 1977 and compaction of subsurface material since 1973. The report was prepared in cooperation with the City of Houston and the Harris-Galveston Coastal Subsidence District, and presents approximate water-level changes in wells in the Chicot and Evangeline aquifers, 1977-90 and 1989-90 (figs. 1-4), and measured compacti
Authors
Dana L. Barbie, L. S. Coplin, Glenn L. Locke
Ground-water study of the central Coastal Plain, North Carolina
No abstract available.
Authors
W.L. Lyke
A finite-element model for simulation of two-dimensional steady-state ground-water flow in confined aquifers
A computer program based on the Galerkin finite-element method was developed to simulate two-dimensional steady-state ground-water flow in either isotropic or anisotropic confined aquifers. The program may also be used for unconfined aquifers of constant saturated thickness. Constant head, constant flux, and head-dependent flux boundary conditions can be specified in order to approximate a variety
Authors
E. L. Kuniansky
The role of soil processes in determining mechanisms of slope failure and hillslope development in a humid-tropical forest eastern Puerto Rico
Translational failures, with associated downslope earthflow components and shallow slides, appear to be the primary mechanism of hillslope denudation in the humid tropical forests of the mountains of eastern Puerto Rico. In-situ weathering of quartz diorite and marine-deposited volcaniclastics produces residual soil (saprolite; up to 21 m deep) / weathered rock profiles. Discontinuous zones of con
Authors
A. Simon, M. C. Larsen, C. R. Hupp
Status of exotic fish in the United States
Abstract not supplied at this time
Authors
Dawn P. Jennings, J.D. Williams
Don't release exotic fish
Abstract not supplied at this time
Authors
Dawn P. Jennings, J.D. Williams
[Book review] Amphibians and Roads, edited by T.E.S. Langton
Review of: Amphibians and Roads: Toad Tunnel Conference Proceedings. Langton, T. E. S., editor. 1989. ACO Technologies PLC. 202 p. ISBN: 0951517201.
Authors
C. K. Dodd
Distribution of annual fishes (Pisces-Rivulidae) in the Rio Unare basin, Venezuela
Abstract not supplied at this time
Authors
J.E. Thomerson, D.C. Taphorn, L.G. Nico
Regional brain morphometry and lissencephaly in the Sirenia
Neuroanatomical structure was examined in the brains of West Indian manatees (Trichechus manatus) using computer-based morphometric methods. Although manatees have a small relative brain size, volume estimates of the major brain regions indicate that the telencephalon comprises 71% of totalbrain volume and is 90% cerebral cortex. These values are comparable to those seen among a diversity of taxa
Authors
Roger L. Reep, Thomas J. O'Shea
Distribution and movement patterns of manatees (Trichechus manatus) in northwestern peninsular Florida
Abstract not supplied at this time
Authors
G. B. Rathbun, J. P. Reid, G. Carowan
Encephalization quotients and life-history traits in the Sirenia
Relative brain size in the Sirenia is unusually small. Encephalization quotients are 0.27 for Florida manatees (Trichechus manatus) and 0.38 for dugongs (Dugong dugon). Estimates for Steller's sea cow (Hydrodamalis gigas) range from 0.12 to 0.19. These values are among the lowest known for Recent mammals, and seemingly have changed little since the Eocene. A body plan specialized for the aquatic e
Authors
T. J. O'Shea, R.L. Reep