Data base for the analysis of compositional characteristics of coal seams and macerals. Final report - Part 10. Variability in the inorganic content of United States' coals: a multivariate statistical study
The multivariate statistical techniques of correlation coefficients, factor analysis, and cluster analysis, implemented by computer programs, can be used to process a large data set and produce a summary of relationships between variables and between samples. These techniques were used to find relationships for data on the inorganic constituents of US coals. Three hundred thirty-five whole-seam channel samples from six US coal provinces were analyzed for inorganic variables. After consideration of the attributes of data expressed on ash basis and whole-coal basis, it was decided to perform complete statistical analyses on both data sets. Thirty variables expressed on whole-coal basis and twenty-six variables expressed on ash basis were used. For each inorganic variable, a frequency distribution histogram and a set of summary statistics was produced. These were subdivided to reveal the manner in which concentrations of inorganic constituents vary between coal provinces and between coal regions. Data collected on 124 samples from three stratigraphic groups (Pottsville, Monongahela, Allegheny) in the Appalachian region were studied using analysis of variance to determine degree of variability between stratigraphic levels. Most variables showed differences in mean values between the three groups. 193 references, 71 figures, 54 tables.
- Research Organization:
- Pennsylvania State Univ., University Park (USA). Coal Research Section
- DOE Contract Number:
- AC22-80PC30013
- OSTI ID:
- 6754064
- Report Number(s):
- DOE/PC/30013-F10; ON: DE84014544
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ASH CONTENT
ASHES
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
COAL
COAL DEPOSITS
COAL SEAMS
DATA
DATA PROCESSING
ENERGY SOURCES
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
GEOLOGY
INFORMATION
INORGANIC COMPOUNDS
MATERIALS
MINERAL RESOURCES
MINERALOGY
NUMERICAL DATA
PROCESSING
RESIDUES
RESOURCES
STATISTICAL DATA
STRATIGRAPHY