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Page 4963, results 124051 - 124075

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Ground water in the carbonate rocks of the Franklin area, Tennessee
Ann Zurawski, C.R. Burchett
1980, Open-File Report 80-410
A study of ground water in the Franklin area, Tennessee, was undertaken to fill a growing need for information on ground-water occurrence in the carbonate rocks of central Tennessee. Fifteen drilling sites were selected that had one or more of the following characteristics: medium-to thick-bedded limestones within 200 feet of...
Grinnell and Sperry Glaciers, Glacier National Park, Montana: A record of vanishing ice
Arthur Johnson
1980, Professional Paper 1180
Grinnell and Sperry Glaciers, in Glacier National Park, Mont., have both shrunk considerably since their discovery in 1887 and 1895, respectively. This shrinkage, a reflection of climatic conditions, is evident when photographs taken at the time of discovery are compared with later photographs. Annual precipitation and terminus-recession measurements, together with...
Ground water of coal deposits, Bay County, Michigan
J. R. Stark, Michael G. McDonald
1980, Open-File Report 80-591
A coal deposit in Bay County, Mich., typical of Pennsylvanian-coal deposits in the State, was studied to determine the degree to which hydrologic factors might affect future coal mining. The coal deposit, which averages about 0.5 meters in thickness, lies 50 meters below land surface. It is part of a...
Simulated effects of ground-water development on potentiometric surface of the Floridan Aquifer, west-central Florida
William Edward Wilson, James M. Gerhart
1980, Open-File Report 79-1271
A digital model of two-dimensional ground-water flow was used to predict changes in the potentiometric surface of the Floridan aquifer, 1976-2000, in a 5,938-square-mile area of west-central Florida. In 1975, ground water withdrawn from the Floridan aquifer for irrigation, phosphate mines, other industries, and municipal supplies averaged about 649 million...
Description and preliminary map of airborne electromagnetic survey of parts of Iron, Baraga, and Dickinson Counties, Michigan
William D. Heran, Bruce D. Smith
1980, Open-File Report 80-297
The data presented herein is from an airborne electromagnetic INPUT* survey conducted by Geoterrex Limited of Canada for the U.S. Geological Survey. The survey area is located in the central part of the Upper Peninsula of Michigan, within parts of Iron, Baraga, and Dickinson Counties. The general area covered is...