COAL RESOURCE CLASSIFICATION SYSTEM OF THE U.S. BUREAU OF MINES AND U.S. GEOLOGICAL SURVEY

Mineral Resource Classification Systems of the U.S. Bureau of Mines and the U.S. Geological Survey

GEOLOGICAL SURVEY BULLETIN 1450-B

A report published jointly by the U.S. Bureau of Mines and U.S. Geological Survey. Definitions of coal resource classification terms used by the U.S. Bureau of Mines and U.S. Geological Survey.

CONTENTS

• Foreword
• Introduction
• Classification System
• Glossary of Coal Classification Terms
• Criteria for Coal Resource/Reserve Identification
• Figure 1. Classification of coal resources
• Table 1.--Coal Resource/Reserve Criteria

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