Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16759
Fluorspar Fluorspar
The U.S. produced 50 kt of fluorspar in 1992 and imported nearly 409 kt. Almost all the fluorspar was imported from China. The U.S. consumption of 467 kt represents the lowest level since 1958. This is due to the continuing decrease in consumption by the steel and aluminum industries.
Authors
M. Miller
How to lie with biodiversity How to lie with biodiversity
No abstract available.
Authors
C.S. Robbins
[Book review] Illustrations of the birds of California, Texas, Oregon, British and Russian America [Book review] Illustrations of the birds of California, Texas, Oregon, British and Russian America
John Cassin was one of the leading American ornithologists of the 19th century. Appointed Honorary Curator of Birds at the Academy of Natural Sciences of Philadelphia in 1842, he built and studied the collections of that institution (although engaged full time in business) until his death in 1869. This book represents perhaps his most important and least well known endeavor.
Authors
Richard C. Banks
The ninety-third Christmas Bird Count: OC MD Ocean City, MD The ninety-third Christmas Bird Count: OC MD Ocean City, MD
No abstract available.
Authors
C.S. Robbins
Resistance of young wolf pups to inclement weather Resistance of young wolf pups to inclement weather
Three observations of young wolf (Canis lupus) pups in Denali National Park and Preserve, Alaska, and two on Ellesmere Island, Northwest Territories, Canada, indicate that pups
Authors
L.D. Mech
Altitude and configuration of the potentiometric surface in New Hope Borough and Solebury Township, Bucks County, Pennsylvania, October 1991 through April 1992 Altitude and configuration of the potentiometric surface in New Hope Borough and Solebury Township, Bucks County, Pennsylvania, October 1991 through April 1992
No abstract available
Authors
Curtis L. Schreffler
Hydrologic data and hydrologic budget for Summit Lake Reservoir, Henry County, East-Central Indiana, water years 1989 and 1990 Hydrologic data and hydrologic budget for Summit Lake Reservoir, Henry County, East-Central Indiana, water years 1989 and 1990
Hydrologic data were collected near Summit Lake Reservoir for 2 years beginning October 1, 1988, and ending September 30, 1990. The data-collection network consisted of 1 reservoir-stage gage, 2 precipitation gages, 1 evaporation pan, 2 streamflow gages, and 13 observation wells. Stage-area and stage-storage relations for the reservoir were used in combination with the hydrologic data to...
Authors
R.F. Duwelius
Water-resources investigations in Pennsylvania; programs and activities of the U.S. Geological Survey, 1993 Water-resources investigations in Pennsylvania; programs and activities of the U.S. Geological Survey, 1993
Current activities of the Pennsylvania District of the USGS are described and include information on current projects, such as project objectives, approach, progress and plans, project location, cooperators, period of project, and project chief. Basic-data programs for surface water, ground water, and quality of water also are described. Also included is information on the basic mission...
Authors
L. O. McLanahan
Pressure increases, the formation of chromite seams, and the development of the ultramafic series in the Stillwater Complex, Montana Pressure increases, the formation of chromite seams, and the development of the ultramafic series in the Stillwater Complex, Montana
This paper explores the hypothesis that chromite seams in the Stillwater Complex formed in response to periodic increases in total pressure in the chamber. Total pressure increased because of the positive δV of nucleation of CO2 bubbles in the melt and their subsequent rise through the magma chamber, during which the bubbles increased in volume by a factor of 4–6. By analogy with the...
Authors
B. R. Lipin
Hydraulics of Alaska steeppass fishway model A40 Hydraulics of Alaska steeppass fishway model A40
No abstract available at this time
Authors
M. Odeh