Report issued by the U.S. Bureau of Mines to evaluate the known reserves of coking coal in Pike County, Kentucky. The properties of coal and coal blends from the area are presented. This report includes tables and maps.

Report discussing the U.S. Geological Survey's investigation aimed at finding a location with an abundance of black shale, and determining the amount of uranium in the shale.

Report issued by the U.S. Bureau of Mines on the known recoverable reserves of coking coal in Floyd County, Kentucky. The investigation includes a study on the properties of coal and coal blends found in the area. This report contains maps and tables.

Report documenting the suitability of Kentucky for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.

From Introduction and Summary: "This report gives results of an investigation of the carbonizing properties of the following eastern Kentucky coals: Elkhorn No.1 bed, No. 28 mine, Wayland, Floyd County; Elkhorn No.2 bed, Turner No.5 mine, Drift, Floyd County; Leatherwood (Haddix No.5) bed, Leatherwood mine, Leatherwood, Perry County; and Harlan bed, Path Fork mine, Path Fork, Harlan County."

Report of investigations issued by the U.S. Bureau of Mines regarding the estimates of known reserves of coking coal located in Knott County, Kentucky. The investigation also discusses properties of coal and coal blends from the area. This report includes maps and tables.

Report issued by the Bureau of Mines over an annual study of synthetic liquid fuel production. Results of the annual study are presented and discussed. This report includes maps, tables, illustrations, and photographs.

From abstract: Uranium assays of all the samples collected by the Geological Survey from the Chattanooga shale in east-central Tennessee and southern Kentucky from 1947 to 1949 are assembled here, and conclusions are drawn concerning the distribution of the uranium. The 1108 assays from 80 localities provide reasonably reliable information on the stratigraphic and regional variations of the uranium content.

From Forward: "This bulletin is the first of a new series, which includes analyses of only tipple and delivered coal. It covers samples collected throughout the United States from July 1, 1947 to June 30, 1950 (fiscal years 1948-50). It is planned that future publications of this series will cover a period of one fiscal year only and be issued as soon as possible after June 30 of each year."

Report discussing radioactivity measurements of samples of coal and associated rock that were collected during a reconnaissance study in the coal fields of eastern Kentucky, as well as Logan and Mingo counties, West Virginia.

The following report covers a reconnaissance study that was made of radioactivity of coal and associated rock in the coal fields of eastern Kentucky and Logan Mingo counties, W. Va. Samples of coal, carbonaceous shale, marine shale, flint clay, and dike rock were discovered and radioactivity within these samples were measured.

Report issued by the Bureau of Mines over studies of the estimation of coking coal reserves from Letcher County, Kentucky. The methods used and measurements of coking coal reserves are presented. This report includes tables, and maps.

From abstract: The central part of the Commodore fault system is in the western Kentucky fluorspar district, in Crittenden County, about 6 miles northwest of Marion. It has yielded from 30,000 to 40,000 tons of crude fluorspar and nearly 20,000 tons of zinc ore. Limestones, sandstones, and shales of the Meramec, Chester, and Pottsville groups of Carboniferous age crop out as relatively flat-lying beds, except near faults. The rocks are transected by high-angle normal faults. The main faulted zone is the Commodore fault system, which displaces the beds from 1,500 to 2,000 feet. The principal vein minerals are fluorite, calcite, smithsonite, sphalerite, and galena. Fluorite and smithsonite are the chief ore minerals, occurring as lenses along the faults. The mines have been worked since 1892, but most of the workings are caved or filled with water.

Abstract: The Moore Hill fault system in the central part of the Kentucky-Illinois fluorspar field is about 26 miles long. Fluorspar has been produced from a part nearly 5 miles long, and since mining began in 1899 this system has yielded more than 300,000 tons of fluorspar. Lead and zinc sulfides commonly are found in the ore, but only rarely do they occur in sufficient quantity to be worth recovering. The productive part of the fault system was mapped and the properties and principal mines described. The high-angle normal faults of the system cut limestones, sandstones, and shales of Mississippian age. Stratigraphic displacements range from less than a foot to as much as 550 feet. The fluorspar bodies are sporadically distributed in veins of calcite and fluorite along the faults.

Report issued by the Bureau of Mines over studies of the estimation of coking coal reserves from Harlan County, Kentucky. The methods used and measurements of coking coal are presented. This report includes tables, and maps.

Report of findings from various tests: "Model investigations of the surges occurring in sewer lines and of the flow conditions in a typical pumping plant, used to dispose of drainage during high river stages, were conducted as a part of the local flood protection project for Louisville, Kentucky. Studies conducted on a 1:32 scale simplified model of the Southern Outfall Sewer provided general information on the relative amount of relief from surges to be expected from the pumping station and manholes in the sewer line upstream" (p. v).

Report issued by the Bureau of Mines over investigations of coking-coal reserves of Perry County, Kentucky. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.

From introduction: The need for fluorspar in the manufacture of open-hearth steel, hydrofluoric acid, aluminum, certain insecticides, refrigerants and airconditioning compounds, welding rods, 100-octane gasoline, and many other products necessary to the prosecution of World War II resulted in unprecedented demands for this commodity. To help increase production to meet these demands, the War Production Board in 1942 asked the United States Geological Survey to plan a comprehensive study of the fluorspar deposits in the United States. This study has been carried on in many parts of the country in cooperation with geologists and engineers of State and Federal agencies and with local producers.

This report gives information about substation locations, elevations,exposures and many from date station was established through the year 1955,which are present in kentucky.

From abstract: The White Oak quadrangle lies near the western edge of the eastern Kentucky coalfield and includes approximately 59 square miles of parts of Magoffin and Morgan Counties, Ky. The outcropping rocks are equivalent to most of the Breathitt formation of Pennsylvanian age. The regional southeast dip of the rocks is interrupted by the Irvine-Paint Creek fault, the Caney anticline, the Grape Creek syncline, and the Johnson Creek fault.

Report issued by the Bureau of Mines over studies conducted on low-temperature carbonization of coal. Methods and results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.