WebOct 13, 2013 · Giant ore deposits are priority targets for mining companies. A review of the characteristics of several giant porphyry and epithermal deposits worldwide suggests that they formed from ordinary ... WebNov 1, 2024 · In this paper, we present the petrographic characteristics (microscopic observations and cathodoluminescence) and geochemical signatures (Electron Microprobe Analysis [EMPA] and Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry [LA-ICP-MS]) of zircons collected from four porphyry copper deposits located in the Upper …
U.S. Geological Survey Publications Warehouse
WebApr 15, 2024 · The magmatic process within upper crust encompasses various contents such as the transition between magmatic and hydrothermal systems and changes in … WebAug 25, 2024 · There is several porphyry and skarn indexes in study area that one of the porphyry copper deposits are mined (the sungun deposit). The Sungun intrusive complexes intruded along the Sungun anticline into Cretaceous limestone and trachy andesite Eocene tuff and agglomerate along the Sungun anticline (Hezarkhani, Citation 2003 ; Hezarkhani ... fred sirec
Porphyry and Epithermal Mineral Deposits Request PDF
Webwith porphyry copper and skarn deposits are present in the long wave infrared (LWIR, 8.0-14.0 µm) as well as the visible near infrared (VNIR, 0.4-1.1 µm) and through the short wave infrared WebFeb 1, 2024 · Porphyry ore deposits typically form in convergent plate margin or postsubduction settings at depths of 1-6. km. Oxidized hydrous melts derived from the metasomatized mantle wedge transport Cu, Au ... WebMost porphyry deposits occur within Mesozoic and Cenozoic orogenic belts associated with either island-arcs and convergent continental margins Some porphyries occur in Paleozoic orogenic belts in Central Asia, Australia and US Few are found in Precambrian rocks due to their low preservation potential (erosion) 16 Porphyry Cu Locations 17 fred sinowatz