Selenium Distributions in Kanawha Formation Rocks from Boone County, West Virginia. WEST VIRGINIA MINE DRAINAGE TASK FORCE SYMPOSIUM April 22-23, 2008. Dr. Dorothy Vesper West Virginia University Department of Geology & Geography WV WRI Hydrogeology Research Center DOE-NETL Research Fellow .
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WEST VIRGINIA MINE DRAINAGE TASK FORCE SYMPOSIUM
April 22-23, 2008
Dr. Dorothy Vesper
West Virginia University
Department of Geology & Geography
WV WRI Hydrogeology Research Center
DOE-NETL Research Fellow
Hydrogeology Research Center WV Water Research Institute
Selenium distribution and mode of occurrence in the Kanawha Formation, southern West Virginia, USA
Vesper DJ, M Roy and CL Rhoads (2008) International Journal of Coal Geology73: 237-249.
Se in rock core Formation, southern West Virginia, USA
2004 – 1 core, mostly mode of occurrence
Location of cores Formation, southern West Virginia, USA
Selenium by coal bed Formation, southern West Virginia, USAWVGES, 2002(coals only)
Se (ppm dry wt)
Bull Creek Mine (Coal River watershed)
5 rock cores
Sample prep by Research Environmental & Industrial Consultants
2004 Formation, southern West Virginia, USA
Bull Creek Mine
Coalburg (upper line)
Winifrede (lower line)
How is the Se distributed?
Do Se concentrations change with rock type?
Do Se concentrations change by core?
For non-coal units – distance to the coal matters
What is the relationship between Se & sulfur?
All data (R2 = 0.21)
Agrees with Coleman et al. (1993), Mullenex (2005), Neuzil et al. (2005) – FOR THIS REGION. Only Mullenex looked at multiple rock types
What is the relationship between Se & total organic carbon (TOC)?
(only core 2)
Principle component analysis (PCA)
169 samples; acidity and neutralization potential as calcium carbonate equivalent tons per 1000 tons
Map Se and S concentrations for each sample against
PC1 and PC2 scores for each sample
R2 = 0.87
R2 = 0.36
R2 = 0.36
R2 = 0.01
Scores provide the weighting of that sample on that principle component
PCA Results Formation, southern West Virginia, USA
Mudstone, shale, sandstone
Neutral. potential more controlling
Sulfur more controlling
(Ground water fed, neutral pH)
Modified from USGS Circular 1143 (2003),
Coal—A Complex Natural Resource
Selected References Formation, southern West Virginia, USA
Cecil, CB, RW Stanton, SG Neuzil, FT Dulong, LF Ruppert and BS Pierce (1985). "Paleoclimate controls on the late Paleozoic sedimentation and peat formation in the central Appalachian Basin (U.S.A.)." International Journal of Coal Geology5: 195-230.
Coleman, L, LJ Bragg and RB Finkelman (1993). "Distribution and mode of occurrence of selenium in US coals." Environmental Geochemistry and Health15(4): 215-227.
Mullennex R (2005) Stratigraphic Distribution of Selenium in Upper Kanawha-Lower Allegheny Formation Strata at a Location in Southern West Virginia. The 23rd Annual Intern Pitt Coal Conf
Neuzil, SG, FT Dulong and CB Cecil (2005). Spatial trends in ash yield, sulfur, selenium, and other selected trace element concentrations in coal beds of the Appalachian Plateau Region, U.S.A. (preliminary report). Reston, VA, U.S. Geological Survey.
USGS (2005). Coal—A Complex Natural Resource, An overview of factors affecting coal quality and use in the United States with a contribution on coal quality and public health. Circular 1143.
WVGES (2003) Trace Elements in West Virginia Coals. Selenium. Online graphs and data
U.S. Department of Interior Office of Surface Mining (OSM)
West Virginia Water Research Institute
REIC (Tim Keeney)