U.S. Geological Survey
National Coal Resources Data System
U.S. Coal Resource Databases:
USCOAL and NEWCOAL
Table of Contents
Introduction
Scope and
Purpose
References
Cited
Table A. Status of Coal Resource Databases
Table B. USCOAL and
NEWCOAL Database Elements
Table 1. Principal Meridian codes and names
Table 2. Geological
age names used with USCOAL and NEWCOAL
Table 3. Subdivisions
of the thickness, overburden, reliability, and rank database
elements in USCOAL and NEWCOAL
Figure 1. Coal Provinces of the Conterminous United States. (Modified from Trumbull, 1960).
Figure 2. Coal Regions of the Conterminous United States. (Modified from Trumbull, 1960).
Figure 3. Coal Regions of the Alaska Coal Province. (Modified from Barnes, 1961).
Reference Documentation for the Database
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Last updated 01 April 2004