Upper Freeport Coal Bed Point Data (Chemistry) in Pennsylvania, Ohio, West Virginia, and Maryland
Description
This dataset (located by latitude and longitude) is a subset of the
geochemical dataset found in Chap. D, Appendix 8, Disc 1, and used
in this study of the Upper Freeport coal bed. That dataset is a
compilation of data from the U.S. Geological Survey's (USGS) National
Coal Resources Data System (NCRDS) USCHEM (U.S. geoCHEMical), The
Pennsylvania State University (PSU), the West Virginia Economic and
Geological Survey (WVGES), and the Ohio Division of Geological Survey
(OHGS) coal quality databases as well as published U.S. Bureau of Mines
(USBM) data. The metadata file for the complete dataset is found in
Chap. D, Appendix 9, Disc 1 (please see it for more detailed
information on this geochemical dataset). This subset of the geochemical
data for the Upper Freeport coal bed includes ash yield, sulfur content,
SO2 value, gross calorific value, arsenic content and mercury content
for these records, as well as the ranking of these values, which is
described later under the attributes in this metadata file. Analytical
techniques are described in the references in Chap. D, Appendix 10,
Disc 1. The analytical data are stored as text fields because many of
the parameters contain letter qualifiers appearing after the numerical
data values. The following is a list of the possible qualifier values:
L - less than, G - greater than, N - not detected, or H - interference
that cannot be easily resolved. Not all of these codes may be in this
database.