Contents
Perspectives
Objectives
Strategy
Background
Geologic Setting
Coal
geology
Coal
stratigraphy
Biostratigraphy
Depositional Settings
and their Influence on Coal Resources
Early
Paleocene
Middle
Paleocene
Late
Paleocene
Influence
of Depositional Environments
Coal Quality
References
Figures
IN-1. Index
map of Northern Rocky Mountains and Great Plains region showing locations
of
sedimentary basins and distribution of Fort Union Formation and equivalent
strata and coal.
IN-2. Composite
stratigraphic section of coal-bearing Paleocene rocks in the four major
basins studied in
the Northern Rocky Mountains and Great Plains region.
IN-3. Fluvial
depositional model.
IN-4. Stratigraphic
nomenclature for the Paleocene of the Northern Rocky Mountains and Great
Plains
region.
IN-5. Ferris
coal beds.
IN-6. Wyodak-Anderson
coal zone.
IN-7. Beulah-Zap
coal zone.
IN-8. Deadman
coal zone.
IN-9. Some
key species of fossil pollen used in biostratigraphic zonation of the Paleocene
and Eocene in the
Rocky Mountain region.
IN-10. Biostratigraphic
(palynostratigraphic) zonation of the Paleocene and adjacent rocks in the
Rocky
Mountain region.
IN-11. Composite
stratigraphic section for the Northern Rocky Mountains and Great Plains
region showing
the assessment units with age relations based on palynostratigraphy.
IN-12. Composite
correlation of Paleocene sections based on palynostratigraphy.
IN-13. Physiographic
diagram showing the region in early Paleocene time.
IN-14. Physiographic
diagram showing the region in middle Paleocene time.
IN-15. Physiographic
diagram showing the region in late Paleocene time.
Tables
IN-1.
Arithmetic means of heat-of-combustion (Btu/lb) and moisture, ash, and
total sulfur contents (percent) of
coal in the Powder River and Williston Basins
IN-2.
Arithmetic means of pounds of SO2 per million Btu of coal in the Powder
River and Williston Basins
IN-3.
Arithmetic means of concentrations of trace elements of environmental concern
in the Powder River and
Williston Basins |
