Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Anthony C. Harris"'
Publikováno v:
Australian Journal of Earth Sciences. 68:799-817
Preservation of pre-Cenozoic porphyry Cu deposits requires geological events that bury the deposits before significant exhumation. Burial may be due to basin development over the top of the porphyr...
Autor:
David R. Cooke, S Sykora, Mathieu Ageneau, Nicholas H. Jansen, D Selley, Anthony C. Harris, Erin Lawlis, Jacqueline L. Blackwell
The Lihir gold deposit, Papua New Guinea, is the world’s largest alkalic low-sulfidation epithermal gold deposit in terms of contained gold (50 Moz). The deposit formed over the past million years and records a progression from porphyry- to epither
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54f9db735f131798211031f9b33baab9
https://doi.org/10.5382/sp.23.28
https://doi.org/10.5382/sp.23.28
Autor:
Nathan Fox, Anthony C. Harris, Richard M. Tosdal, John R. Holliday, Alg Cuison, Cooke, M Groome, Alan J. Wilson
The Cadia district of New South Wales contains four alkalic porphyry Au-Cu deposits (Cadia East, Ridgeway, Cadia Hill, and Cadia Quarry) and two Cu-Au-Fe skarn prospects (Big Cadia and Little Cadia), with a total of ~50 Moz Au and ~9.5 Mt Cu (reserve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ea36b81039814b8d3e1a202b155e873
https://doi.org/10.5382/sp.23.30
https://doi.org/10.5382/sp.23.30
Autor:
Sebastien Meffre, K Gardner, Anthony C. Harris, S Sykora, D Selley, AS Stephanov, RJ Scott, Cooke
Publikováno v:
Economic Geology. 113:193-208
The Lihir (also known as Ladolam) Au deposit in Papua New Guinea is a telescoped ore deposit, in which volcanic sector collapse(s) led to superimposition of shallow-level Au-rich epithermal mineralization upon preexisting but genetically related, por
Publikováno v:
Economic Geology. 113:237-270
The Lihir Au deposit (also known as Ladolam), Papua New Guinea, has a 56-Moz resource and is the world’s largest alkalic Au deposit in terms of contained Au. The Au deposit is in an amphitheater, inferred to be a remnant of the original ~1.1-km-hig
Publikováno v:
Economic Geology. 113:133-161
The late Miocene, calc-alkalic, Wainaulo Cu-Au porphyry deposit of the Namosi district, Fiji, hosts distinct styles of alteration and mineralization that overlapped to produce a substantial porphyry Cu-Au resource. The early stages produced medium-gr
Autor:
Marc L. Rinne, David R. Cooke, Robert A. Creaser, David J. Finn, Anthony C. Harris, Matthew T. Heizler, Charlotte M. Allen
Publikováno v:
Economic Geology. 113:271-294
The Wafi-Golpu district of Papua New Guinea contains contrasting high- and intermediate-sulfidation styles of epithermal veins and alteration that have overprinted and partially obscured the giant, high-grade Golpu porphyry Cu-Au deposit. The initial
Publikováno v:
Economic Geology. 112:1011-1019
In tropical climates, postdrilling oxidation of sulfide-rich core can severely degrade drill core, producing low-temperature iron oxyhydroxides, sulfates, and clays. Variable growth of these secondary minerals in exposed drill core, combined with the
Publikováno v:
Geology. 43:811-814
Located in the accreted remnants of the Ordovician Macquarie Arc (Australia), Cadia East is the largest alkalic porphyry Au-Cu deposit currently known. The deposit is centered on a 2-km-long, northwest-trending volcanosedimentary subbasin, which was
Autor:
Anthony C. Harris, R. J. Holcombe
Publikováno v:
Economic Geology. 109:1035-1050
Porphyry Cu-Au-Mo deposits are characterized by numerous fracturing events. Brittle fracture of mineralized intrusions and the surrounding host rocks is a consequence of hydraulic breakage caused by the interplay of the changing physiochemical proper