Webthat of Gustafson and Hunt, 1975), 8) a progression in hydrothermal alteration from early, central potassium silicate and distal propylitic styles through transitional intermediate argillic to late sericitic/phyllic, and advanced argillic alteration types, 9) sulphide and oxide minerals which vary from early WebGustafson and Hunt (1975) interpreted evolution of alteration and mineralization at EI Salvador as the result of a. unidirectional change of conditions, from near-magmatic pressure and temperature dominated by magmatic fluids in early stages to hydrostatic pressure dominated by lowtemperature meteoric water in late stages.
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WebJan 1, 1981 · Descriptions of alteration assemblages containing andalusite, pyrophyllite and diaspore have been published for two deposits: one from El Salvador, Chile (Gustafson and Hunt, 1975) and a second from North Sulawesi, Indonesia (Lowder and Dow, 1978). WebJan 1, 1981 · Descriptions of alteration assemblages containing andalusite, pyrophyUite and diaspore have been published for two deposits: one from E1 Salvador, Chile (Gustafson and Hunt, 1975) and a second from North Sulawesi, Indonesia (Lowder and Dow, 1978). excel keresés tartományban
The Geochemistry of the Leached Capping of the La Granja …
WebLewis B. Gustafson, John P. Hunt; The porphyry copper deposit at El Salvador, Chile. Economic Geology 1975;; 70 (5): 857–912. doi: … WebJan 1, 2011 · por Gustafson y Hunt (1975), Burnham (1979, 1985) y Seedorff (2005), resultando con ello una extensiva . permeabilidad secundaria, la cual prepara la roca para . futuros procesos supergénicos. WebSep 1, 1984 · GROUP TECHNIQUES FOR PROGRAM PLANNING: A GUIDE TO NOMINAL GROUP AND DELPHI PROCESSES Andre L. Delbecq, Andrew H. Van de Ven, and David H. Gustafson Glenview, III.: herbal ibu menyusui