Unnamed Pge Occurrence

GOTTFRIED, DAVID, AND FROELICH, A.J., 1988, VARIATIONS OF PALLADIUM AND PLATINUM CONTENTS AND RATIOS IN SELECTED EARLY MESOZOIC THOLEIITIC ROCK ASSOCIATIONS IN THE EASTERN UNITED STATES, IN, FROELICH, A.J., AND ROBINSON, G.R., JR., EDS., STUDIES OF THE EARLY MESOZOIC BASINS OF THE EASTERN UNITED STATES: U.S. GEOLOGICAL SURVEY BULLETIN 1776, P. 332-341.FROELICH, A.J., WOODRUFF, L.G., BELKIN, H.E., AND GOTTFRIED, DAVID, 1991, CONCENTRATION AND ZONATION OF COPPER AND PALLADIUM IN THE MESOZOIC BELMONT DIABASE SHEET, CULPEPER BASIN, NORTHERN VIRGINIA - AN EXPLORATION GUIDE TO ENRICHMENT OF PRECIOUS METALS IN MAFIC MAGMATIC ROCKS, IN, GOODE, E.E., SLACK, J.F., AND KOTRA, R.K., EDS., USGS RESEARCH ON MINERAL RESOURCES - 1991, PROGRAM AND ABSTRACTS: U.S. GEOLOGICAL SURVEY CIRCULAR 1062, P. 26-29.GOTTFRIED, DAVID, FROELICH, A.J., ARUSCAVAGE, P.J., AND RAIT, NORMA, 1989, ANOMALOUS PALLADIUM-PLATINUM OCCURRENCES IN MESOZOIC QUARTZ-NORMATIVE THOLEIITIC SUITES IN THE EASTERN UNITED STATES, IN, SCHINDLER, K.S., ED., USGS RESEARCH ON MINERAL RESOURCES - 1989, PROGRAM AND ABSTRACTS: U.S. GEOLOGICAL SURVEY CIRCULAR 1035, P. 23-25.