Yahoo Search Búsqueda en la Web

Resultado de búsqueda

  1. 1 de ene. de 2010 · Abstract. Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sediment-hosted Au deposits in increasingly peripheral locations; and superjacent high- and intermediate-sulfidation ...

  2. Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sedimenthosted Au deposits in increasingly.

  3. Porphyry Copper Systems* RICHARD H. SILLITOE† 27 West Hill Park, Highgate Village, London N6 6ND, England Abstract Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sediment-

  4. Porphyry copper systems. Richard H. Sillitoe. Porphyry copper systems (in A group of papers on porphyry Cu deposits, Lawrence D. Meinert) Economic Geology and the Bulletin of the Society of Economic Geologists (January 2010) 105 (1): 3-41. Index Terms/Descriptors. alteration. copper ores. dike swarms. dikes. giant deposits. global. gold ores.

  5. It is well known that magmatic-hydrothermal breccias (Sillitoe, 1985) in porphyry copper deposits can give rise to substantially higher-grade hypogene (and supergene) mineralization because of the greater permeability and resultant fluid focusing that they provide (Fig. 3).

  6. Feb 2018. Richard H Sillitoe. This analysis concludes that there is little realistic likelihood of discovering large, high-grade porphyry Cu deposits in Japan and South Korea because of an...

  7. The copper mineralization in Peru is intimately associated with porphyry Cu deposits and subdivides into three porphyry Cu belt as Paleocene, Eocene-Oligocene, and Miocene. Up to now, the total ...