Estimation of undiscovered deposits in quantitative mineral resource assessments—examples from Venezuela and Puerto Rico

Bawiec, W.J., Griscom, Andrew, Krushensky, R.D., Marsh, S.P., McKelvey, G.E., and Scanlon, K.M., 1991, Mineral-resource assessment of Puerto Rico,in Good, 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. 4–5.

Bliss, J.D., 1986, Grade and tonnage model for low-sulfide Auquartz veins,in Cox, D.A., and Singer, D.A., eds., Mineral deposit models: U.S. Geological Survey Bulletin 1693, p. 239–243.

Bliss, J.D., Menzie, W.D., Orris, G.J., and Page, N.J., 1987, Mineral deposit density— A useful tool for mineral-resource assessment,in Sachs, J.S., ed., USGS Research on mineral resources—1987 program and abstracts: U.S. Geological Survey Circular 995, p. 6.

Chung, C.F., Jefferson, C.W., and Singer, D.A., 1992. A quantitative link among mineral deposit modeling, geoscience mapping, and exploration-resource assessment: Economic Geology, v. 87, p.194–197.

Cox, D.P., 1985, Geology of the Tanamá and Helecho porphyry copper deposits and vicinity, Puerto Rico: U.S. Geological Survey Professional Paper 1327, 59p.

Cox, D.P., Acosta, Juan, Stewart, J.H., Arespon, Jesús, Brooks, W.E., Franco, Luis, Salazar, Edixon, Lopez, Yolanda, and Gray, Floyd, in press, Geologic map of the Guri and southern part of the Tucupita 2o by 3o quadrangles, Bolivar State, Venezuela: U.S. Geological Survey Miscellaneous Investigations Map, 1∶500,000 scale.

Cox, D.P., Orris, G.L., Gray, Floyd, and Page, N.J. in press, Density of gold vein deposits as a guide to informed-judgement estimates in the Venezuelan Guayan Shield: Kyoto, Japan, International Geologic Congress, 29th, Aug. 24–Sept. 3, 1992, Program with Abstracts, v. 1, p. 83.

Cox, D.P., and Singer, D.A., 1992, Distribution of gold in porphyry copper deposits,in DeYoung, J.H., Jr., and Hammarstrom, J.M., eds., Contributions to commodity geology research: U.S. Geological Survey Bulletin 1877, p. C1–C14.

Learned, R.E., and Boissen, Rafael, 1973, Gold—A useful pathfinder element in the search for porphyry copper deposits in Puerto Rico,in Jopnes, M.J., ed., Geochemical exploration, 1972: International Geochemical Exploration Symposium, 4th, London, U.K., 1972, Proceedings, p. 93–103.

Mattson, P.H., 1968, Geologic map of the Adjuntas quadrangle, Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Map I-519, scale 1∶20,000.

Mosier, D.L., 1986, Grade and tonnage model for Homestake gold,in Cox, D.A., and Singer, D.A., eds., Mineral deposit models: U.S. Geological Survey Bulletin 1693, p. 245–247.

Neter, John, and Wasserman, William, 1954. Fundamental statistics for business and economics: Boston, Allyn and Bacon, Inc., 738 p.

Root, D.H., Menzie, W.D., and Scott, W.A., 1992. Computer Monte Carlo simulation in quantitative resource assessment: Nonrenewable Resources, v. 1, p. 125–138.

Singer, D.A., 1993. Basic concepts used in three-part quantitative assessments of undiscovered mineral resources. Nonrenewable Resources, v. 2, p. 69–81.

Singer, D.A., and Cox, D.P., 1986, Grade and tonnage model for porphyry Cu−Au,in Cox, D.A., and Singer, D.A., eds., Mineral deposit models: U.S. Geological Survey Bulletin 1693, p. 110–114.

Wynn, J.C., Olmore, S.D., Gray, Floyd, Day, W.C., Sidder, G.B., and Page, N.J., 1991, U.S., Geological Survey mineral resource and tectonic studies in Venezuela,in Good, 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. 80–81.