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Page 5009, results 125201 - 125225

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Ground-water levels in selected well fields and in west-central Florida, September 1979
D. K. Yobbi, L. R. Mills, W. M. Woodham
1980, Open-File Report 80-210
The water table in the surficial aquifer and the potentiometric surface of the Floridan aquifer in a 1,200-square-mile area in west-central Florida are mapped semiannually by the U.S. Geological Survey. Maps are based on water levels measured in wells each May to coincide with seasonal low levels, and each September...
Quality of water and time of travel in Hobolochitto Creek, Pearl River County, Mississippi
Gene A. Bednar
1980, Open-File Report 80-203
In Mississippi, an intensive study of Hobolochitto Creek, including the lower parts of East and West Hobolochitto Creeks, was conducted on September 12-14, 1978. The quality-of-water data were collected during a period of generally low streamflow and seasonally high air temperatures. These data show that the quality of water in...
Zircon fission-track age of 0.45 million years on ash in the type section of the Merced Formation, west-central California
C.E. Meyer, M.J. Woodward, A.M. Sarna-Wojcicki, C. W. Naeser
1980, Open-File Report 80-1071
A zircon fission-track age of 0.45 ± 0.08 million years (weighted average of 15 samples) has been determined on an ash interbedded with Pleistocene marine or littoral strata in the type section of the Merced Formation at two localities south of San Francisco. Separation of zircon crystals into several sample...