| Reference | {General:: Type 21a}{General:: Map Number 249}{Reference:: Anonymous, 2001, Magistral drilling pulls high-grade copper: The Northern Miner, August 27-September ?, p. 11}{Reference:: Heintze, L., 1985, Geologie und Geochemie der Porphyryshen Stockwerk-Molybdan-Lagerstatte Tambora Zone la Negra (Peru): Geologisches Yahrbuch, Reihe D., Hf. 72, 94 p.}{Reference:: Chadwick, J., 2001, Andean action: Mining Magazine, v. 184, no. 5, p. 234-247}{Reference:: Unpublished database, Gov. Peru}{Reference:: Singer, D.A., Berger, V.I., Moring, B.C., Porphyry copper deposits of the world: Database, maps, and grade and tonnage models, USGS Open-File Report 2005-1060 (2005). http://pubs.usgs.gov/of/2005/1060/of2005-1060.pdf. Retrieved from the WWW on 12/11/07} |