Coal Resources of Virginia
GEOLOGICAL SURVEY CIRCULAR 171 COAL RESOURCES OF VIRGINIA By Andrew Brown, Henry L. Berryhill, Jr., Dorothy A. Taylor, and James V. A. Trumbull UNITED STATES DEPARTMENT OF THE INTERIOR Oscar L. Chapman, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director GEOLOGICAL SURVEY CIRCULAR 171 COAL RESOURCES OF VIRGINIA By Andrew Brown, Henry L. BenyhilL Jr., Dorothy A. Tayknr, and James V. A. Trumbull Prepared in cooperation with the Virginia Geological Survey Washington, D. C., 1962 Free on application to the Geological Surrey, Waatiii«ton 26, D. C. PREFACE This report on the coal resources of Virginia has been prepared by the U. S. Geological Survey in cooperation with the Virginia Geological Survey. It is the seventh of a series of reports published by the U. S. Geological Survey as part of a program to reappraise the coal reserves of the United States. Studies of reserves in other States are contained in the following publications: Geology of the Deep River coal field, Chatham, Lee, and Moore Counties, N. C., Preliminary map, 1949; Coal resources of Montana, Circular 53, 1949; Coal resources of Michigan, Circular 77, 1950; Coal resources of Wyoming, Circular 81, 1950; Coal resources of New Mexico, Circular 89, 1950; and Lignite resources of South Dakota, Circular 159, 1952. W. E. WRATHER, Director CONTENTS Page Page Introduction .............................. 1 The Southwest field Continued Acknowledgments ..................... 1 Coal beds in the Norton formation Con. Summary of Reserves...................... 2 Description Continued Methods of preparing reserve estimates ...... 2 Aily bed ..................... 19 Classification according to charac Kennedy bed ................... 19 teristics of the coal.................. 3 Caldwell bed ................... 19 Rank of coal .....................
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