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Page 4998, results 124926 - 124950

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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...
Potentiometric surface of the Floridan Aquifer, Southwest Florida Water Management District, September 1980
D. K. Yobbi, W. M. Woodham, George R. Schiner
1980, Open-File Report 80-1280
A September 1980 potentiometric-surface map of the Southwest Florida Water Management District depicts the annual high water-level period. Potentiometric levels rose 1 to 31 feet between May 1980 and September 1980 in the citrus and farming sections of southern Hillsborough, northern Hardee, southwestern Polk, northwestern DeSoto, and Manatee Counties. Water...
Potentiometric surface of the Floridan Aquifer, Southwest Florida Water Management District, May 1980
D. K. Yobbi, W. M. Woodham, George R. Schiner
1980, Open-File Report 80-587
A May 1980 potentiometric-surface map of the Southwest Florida Water Management District depicts the annual low water-level period. Potentiometric levels decreased 5 to 36 feet between September 1979 and May 1980, in the citrus and farming sections of southern Hillsborough, southwestern Polk, northwestern DeSoto , Hardee, and Manatee Counties. Water...
Preliminary free-air gravity map, Norton Basin, Alaska
Michael A. Fisher, P.H. McClellan, M.L. Holmes, J.R. Childs
1980, Open-File Report 80-1068
Gravity data shown here were measured with LaCoste and Romberg sea gravimeter S-53 mounted on a 3 axis inertial platform (LaCoste and others, 1967, Valiant and LaCoste, 1976). Primary navigation was by satellite, integrated with course and speed measurements from doppler sonar and gyrocompass. Gravity data were filtered prior to...