A5080924012- Coal and Its By-products
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Coal Properties and Utilization
- Geological formations and processes
- Geological and Geochemical Analysis
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Geologic Mapping
- Atmospheric and Environmental Gas Dynamics
- Coal and Coke Industries Research
- Plant Diversity and Evolution
- Geological Studies and Exploration
- Recycling and utilization of industrial and municipal waste in materials production
- Peatlands and Wetlands Ecology
- Heavy metals in environment
- Methane Hydrates and Related Phenomena
- Thermochemical Biomass Conversion Processes
- Petroleum Processing and Analysis
- Lichen and fungal ecology
- Geological Modeling and Analysis
- Botany, Ecology, and Taxonomy Studies
- Fire effects on ecosystems
- Geological and Geophysical Studies
- Mineral Processing and Grinding
United States Geological Survey
2015-2024
University of Kentucky
2015-2024
British Geological Survey
2018
Marshall University
1992
West Virginia University
1990
Abstract The Middle Pennsylvanian, Langsettian sub-stage Clintwood coal, along with its correlatives, was one of the more important energy resources in eastern Kentucky. coal thickens from NE-SW-trending Belfry anticline central Pike County to southeast, towards Virginia-Kentucky border. Much thickness increase is bright lithotypes below a dull lithology. lithologies transition clarain + vitrain fusain lithology southeast. Half three analyzed sections exceed 1000-µg/g Rare earth elements Y...
This study presents recently collected data examining the organic petrology, palynology, mineralogy and geochemistry of Gray Hawk coal bed. From Early Pennsylvanian, Langsettian substage, has been mined near western edge eastern Kentucky portion Central Appalachian coalfield. While is thin, rarely more than 0.5-m thick, it a low-ash yield low-S content, making an important local resource. The palynology dominated by Lycospora spp., contains diverse spectrum small lycopods, tree ferns,...
Certain Central Appalachian coals, most notably the Fire Clay coal with a REY-enriched volcanic ash fall tonstein, are known to be enriched in rare earth elements. The tonstein has greater contribution total + parting REY than would inferred from its thickness, accounting for about 20%–35% of sequence. Underground mining, particular, might include roof and floor rock within-seam partings mined product. Beneficiation, necessary meet utility specifications, will remove some delivered In at...
Interregional correlation of the marine zones major cyclothems between North America and eastern Europe does not support assertions that a stratigraphic gap exists traditional regional Desmoinesian Missourian stages in America. Such was previously proposed to explain an abrupt change megafloral assemblages northern Appalachian Basin by extension across all Conodont-based from essentially complete low-shelf Midcontinent succession (distal highstand shoreline), through mid-shelf Illinois...
The thermal maturity of shale is often measured by vitrinite reflectance (VRo). VRo measurements for the Devonian-Mississippian black source rocks evaluated herein predicted immaturity in areas where associated reservoir are oil-producing. This limitation method led to current evaluation Raman spectroscopy as a suitable alternative developing correlations between and spectra. In this study, spectra were regressed against or sample-depth. Attempts made develop quantitative maturity. Using...
Research Article| August 01, 2008 Anomalous cold in the Pangaean tropics Gerilyn S. Soreghan; Soreghan 1School of Geology and Geophysics, University Oklahoma, 100 East Boyd Street, Norman, Oklahoma 73019, USA Search for other works by this author on: GSW Google Scholar Michael J. Christopher Poulsen; Poulsen 2Department Geological Sciences, Michigan, 1100 North Avenue, Ann Arbor, Michigan 48109, Roger A. Young; Young Cortland F. Eble; Eble 3Energy Minerals Section, Kentucky Survey, Kentucky,...
A new fault-associated paleokarst and cave fill has been discovered in north-central Illinois, emplaced Ordovician limestones. The preserves many original solution features, such as oriented grooves, pendants, half tubes. Many of the ancient passages have rounded bottoms flat roofs. Together these suggest that elliptical, phreatic grew upward by paragenesis, which floor is protected from dissolution presence sediment, while ceiling grows dissolution. dated Moscovian (Middle Pennsylvanian)...