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Color Measurements on Marble and Limestone Briquettes Exposed to Outdoor Environment in the Eastern United States
In a long-term program that began in 1984, limestone and marble briquettes have been exposed to both anthropogenic acid deposition and natural weathering at four field sites in the eastern United States.
Date:
April 1994
Creator:
Reimann, K. J.
System:
The UNT Digital Library
An Overview of Pleistocene and Holocene Inland Dunes in Georgia and the Carolinas--Morphology, Distribution, Age, and Paleoclimate
A report about dunes which are vegetated, inactive, and are made of quartz.
Date:
1994
Creator:
Markewich, H. W. & Markewich, William
System:
The UNT Digital Library
Coal Reserves of the Boltsfork Quadrangle, Kentucky: A Coal Recoverability Study
Abstract: "This report presents a U.S. Bureau of Mines study that incorporates coal mining factors, cola recovery factors, and economic factors into the definition of an economically recoverable coal resource. The relationship between these factors to the Energy Information Administration's estimate of U.S. coal resources--the "Demonstrated Reserve Base"--is discussed. The Boltsfork 7 1/2-minute quadrangle in eastern Kentucky was selected as the stud area. Results indicate that of the original 280.2 M tons of resource in the quadrangle, only 99.8 M tons (35.6%) is recoverable at a mining cost of $25 per ton or less" (p. 1).
Date:
1994
Creator:
Rohrbacher, Timothy J.; Teeters, Dale D.; Sullivan, Gerald L. & Osmonson, Lee M.
System:
The UNT Digital Library
Advances in Research on Mineral Resources, 1994
This report talks about some of the current domestic and international research activities of the Office of Mineral Resources, Geological Division of the USGS.
Date:
1994
Creator:
Berger, Byron R.
System:
The UNT Digital Library
Geochemical Survey of the Craig Study Area--Craig and Dixon Entrance Quadrangles and the Western Edges of the Ketchikan and Prince Rupert Quadrangles, Southeast Alaska
The following report documents results taken from a reconnaissance geochemical survey that was conducted in the northwest-trending Alexander terrane, Gravina-Nutzotin overlap assemblage, and Taku terrane in southeast Alaska in the Craig and Dixon Entrance quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles.
Date:
1994
Creator:
Cathrall, John B.
System:
The UNT Digital Library
Thermodynamic Properties of Carbides, Nitrides, and Other Selected Substances
From Introduction: "This compilation is the fourth and final in a series revising and expanding U.S. Bureau of Mines (USBM) Bulletin 605, "Thermodynamic Properties of 65 Elements-Their Oxides, Halides, Carbides, and Nitrides," by C. E. Wicks and F. E. Block (532)."
Date:
1994
Creator:
Pankratz, L. B.
System:
The UNT Digital Library