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Combined Geophysical Investigation Techniques to Identify Buried Waste in an Uncontrolled Landfill at the Paducah Gaseous Diffusion Plant, Kentucky (open access)

Combined Geophysical Investigation Techniques to Identify Buried Waste in an Uncontrolled Landfill at the Paducah Gaseous Diffusion Plant, Kentucky

The primary objective of the investigation was to confirm the presence and determine the location of a cache of 30 to 60 buried 55-gallon drums that were allegedly dumped along the course of the pre-existing, northsouth diversion ditch (NSDD) adjacent to permitted landfills at the Paducah Gaseous Diffusion Plant, Kentucky. The ditch had been rerouted and was being filled and re-graded at the time of the alleged dumping. Historic information and interviews with individuals associated with alleged dumping activities indicated that the drums were dumped prior to the addition of other fill materials. In addition, materials alleged to have been dumped in the ditch, such as buried roofing materials, roof flashing, metal pins, tar substances, fly ash, and concrete rubble complicated data interpretation. Some clean fill materials have been placed over the site and graded. This is an environment that is extremely complicated in terms of past waste dumping activities, construction practices and miscellaneous landfill operations. The combination of site knowledge gained from interviews and research of existing site maps, variable frequency EM data, classical total magnetic field data and optimized GPR lead to success where a simpler less focused approach by other investigators using EM-31 and EM-61 electromagnetic methods …
Date: February 27, 2003
Creator: Miller, Peter T. & Starmer, R. John
System: The UNT Digital Library
First National Indian Training School: The Choctaw Academy (open access)

First National Indian Training School: The Choctaw Academy

Article describes the establishment and construction of the first school for American Indian boys beyond the elementary school level, the Choctaw Academy in Scott County, Kentucky. Ethel McMillan discusses the ways Choctaw leaders worked with Indian agents to establish the school and the lives of the missionaries who led it.
Date: Spring 1950
Creator: McMillan, Ethel
System: The Gateway to Oklahoma History
"With Great Difficulty and Labour": The Emigration of the McIntosh Party of Creek Indians, 1827-1828 (open access)

"With Great Difficulty and Labour": The Emigration of the McIntosh Party of Creek Indians, 1827-1828

Article outlines the travails of the first Creek emigrants to the trans-Mississippi region that is now Oklahoma, whose journey preceded the removal of the Creek Nation.
Date: Winter 2007
Creator: Haveman, Christopher D.
System: The Gateway to Oklahoma History
Reservoir fracture mapping using microearthquakes: Austin chalk, Giddings field, TX and 76 field, Clinton Co., KY (open access)

Reservoir fracture mapping using microearthquakes: Austin chalk, Giddings field, TX and 76 field, Clinton Co., KY

Patterns of microearthquakes detected downhole defined fracture orientation and extent in the Austin chalk, Giddings field, TX and the 76 field, Clinton Co., KY. We collected over 480 and 770 microearthquakes during hydraulic stimulation at two sites in the Austin chalk, and over 3200 during primary production in Clinton Co. Data were of high enough quality that 20%, 31% and 53% of the events could be located, respectively. Reflected waves constrained microearthquakes to the stimulated depths at the base of the Austin chalk. In plan view, microearthquakes defined elongate fracture zones extending from the stimulation wells parallel to the regional fracture trend. However, widths of the stimulated zones differed by a factor of five between the two Austin chalk sites, indicating a large difference in the population of ancillary fractures. Post-stimulation production was much higher from the wider zone. At Clinton Co., microearthquakes defined low-angle, reverse-fault fracture zones above and below a producing zone. Associations with depleted production intervals indicated the mapped fractures had been previously drained. Drilling showed that the fractures currently contain brine. The seismic behavior was consistent with poroelastic models that predicted slight increases in compressive stress above and below the drained volume.
Date: November 1, 1996
Creator: Phillips, W. S.; Rutledge, J. T.; Gardner, T. L.; Fairbanks, T. D.; Miller, M. E. & Schuessler, B. K.
System: The UNT Digital Library