Chapter DB
DATABASE CREATION AND RESOURCE EVALUATION
METHODOLOGY
By R.M. Flores
in U.S. Geological Survey Professional Paper 1625-A
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Contents
Introduction
Database Construction
Drill-hole
Location and Stratigraphic Data
Coal
Zone
Correlation
Coal
Analytical Data
Coal
Resource Evaluation Methodology
Volumetrics
Coal Resource Categories
Computerized
Methods
Conclusions
References
Figures
DB-1. Cross
section of the Wyodak-Anderson coal zone south of Gillette, Wyoming.
DB-2.
Diagrammatic cross section of a series of interconnected coal zones and
related coal beds. Not to scale.
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