:Gold PorphyryLargest Porphyry Copper DepositsPublish Year:2002 · Iron oxide-copper-gold (IOCG) deposits are a globally important source of copper, gold and critical commodities. Despite their relevance, IOCG deposits remain
Consulta
:Iron Oxide Copper-GoldLiu Shaofeng, FU ShuixingPublish Year:2016Porphyry copper-(gold) deposits of the circum-Pacific region Garwin AEGC 2019: From Data to Discovery – Perth, Australia 3 crystallization of hornblende and delayed and reduced production of plagioclase, both in response to elevated H 2 O in the melt.
Consulta
Many diverse ore systems are classified together as iron oxide copper-gold (lOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic environment, or
Consulta
· Iron oxide copper–gold (IOCG) deposits contain economic or anomalous gold, and the gold distribution is important both for its economic significance and ore genesis. However, the gold distribution in IOCG deposits and its controlling factors remain unclear. The gold grades and tonnages of selected thirty-six deposits in some well
Consulta
Batu Hijau is a large porphyry gold copper deposit situ-ated on Sumbawa Island in Indonesia. It has reserves of about 900 Mt at 0.53% Cu and 0.4 g/t Au. Mineralisation is associated with a tonalite intrusive complex within diorite and andesitic volcanics
Consulta
Classification. Iron oxide copper gold (IOCG) deposits are considered to be metasomatic expressions of large crustal-scale alteration events driven by intrusive activity. The deposit type was first recognised by discovery and study of the supergiant Olympic Dam copper-gold-uranium deposit ( Olympic Dam mine ), and South American examples.
Consulta
orphyry copper–gold deposits are large volume, low-grade disseminations formed by precipitation of copper and gold (plus molybdenum) from fluids of magmatic origin1. These deposits form at
Consulta
· THE OYU TOLGOI COPPER-GOLD PORPHYRY DEPOSITS, SOUTH GOBI, MONGOLIA 168 Holliday, J., McMillan, C., and T edder, I., 1999, Dis- covery of the Cadia Ridgeway gold-co pper porphyry
Consulta
· Porphyry copper±molybdenum±gold deposits (PCDs) are the most representative magmatic-hydrothermal metallogenic system above subduction zones with important economic value. Previous studies revealed that large PCDs are generally formed from initial arc magmas (from subduction-induced partial melting of the mantle wedge),
Consulta
· porphyry copper deposits, and probably other types of magmatic-hydrothermal ore systems for instance iron oxide-copper gold (IOCG) deposits. Final remarks We obtained high-resolution visualization
Consulta
· The geological characteristics, geochemical signature and geophysical expression of porphyry copper-(gold) deposits in the circum-Pacific region. ASEG Ext. Abstr. 2019 , 1–4 (2019). Google Scholar
Consulta
· Many diverse ore systems are classified together as iron oxide copper-gold (IOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic environment, or
Consulta
Jul 31, 2018 • Download as PPT, PDF •. Porphyry copper deposits form near shallow porphyritic intrusions where hydrothermal fluids interact with the intrusion and surface waters. Characteristic alteration minerals like chlorite, epidote, clays and micas form from the reaction of hydrothermal solutions with igneous rock silicates.
Consulta
· The iron oxide copper-gold (IOCG) group of deposits, initially defined following discovery of the giant Olympic Dam Cu-U-Au deposit, has progressively become too-embracing when associated deposits and potential end members or analogs are included. The broader group includes several low Ti iron oxide-associated deposits that
Consulta
· Communications Earth & Environment-Editorial Expression of Concern: Formation of giant iron oxide-copper-gold deposits by superimposed, episodic hydrothermal pulses Authors and Affiliations
Consulta
· Australia is blessed with a wealth of mineral resources, and in terms of copper, the most famous deposit class present throughout the Australian continent would have to be Iron-Oxide-Copper-Gold (IOCG) deposits. I’ve been lucky to work on a variety of these deposits in one capacity or another. Although the IOCG classification term is a
Consulta
· I deposit is similar to a reduced porphyry copper–gold deposit, given the widespread occurrence of primary and/or hydrothermal pyrrhotite and common CH4-rich and rare N2-rich fluid inclusions.
Consulta
· Iron oxide copper-gold (IOCG) deposits are a research focus of the current ore deposit geology, and have attracted much attention among the worldwide geologists and exploration experts due to their shallow depth, a wide variety of mineral species and large scale.
Consulta
· Cu/Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold-rich and gold-poor deposits. Gold is found
Consulta
· Copper deposits derived from porphyry magmas are the largest sources of copper and molybdenum, and are a significant source of gold to world markets 1.These deposits have fascinated economic
Consulta
· Copper-Gold ± Molybdenum Deposits of the Ertsberg-Grasberg District, Papua, Indonesia Author(s) Clyde A. Leys Clyde A. Leys 1 Freeport-McMoRan Copper and Gold, Inc., 333 N. Central Ave., Phoenix, Arizona 85004 Search for other GSW Mark Cloos 2
Consulta
DOI: 10.1016/j.oregeorev.2021.104569 Corpus ID: 243980853 Iron oxide copper-gold (IOCG) deposits – a review (part 1): settings, mineralogy, ore geochemistry, and classification Abstract The five Starra iron oxide copper–gold (IOCG) deposits, which are
Consulta
· The Lepanto mine in Luzon, Philippines, is one of the classic “high-sulfidation” type copper–gold deposits (cf. Arribas, 1995).Stable isotope (e.g., Rye, 1993) and mineral chemistry (e.g., Henley and Berger, 2012) along with geologic data have established that such deposits are fossil fumarole–solfatara systems associated with
Consulta
· Iron oxide-copper-gold (IOCG) systems are among the world’s richest mineral deposits, making for highly profitable mining operations 1,2,3.By-product strategic elements including Co, U and REE
Consulta
· Abstract In the Uralian Fold Belt, there are quite numerous and well-studied porphyry copper (±Mo) deposits corresponding to the traditional “diorite” (most) or “monzonite” (Talitsa, Verkhneuralskoe) models. Along with them, there are relatively small but gold-rich massifs of porphyric granitoids, including the large Yubileinoe porphyry
Consulta
Iron oxide‐copper‐gold (IOCG) deposits are a globally important source of copper, gold and critical commodities. Despite their relevance, IOCG deposits remain an ill‐defined clan, with a
Consulta
:Iron Oxide Copper-GoldIOCG · Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature
Consulta
:Largest Porphyry Copper DepositsPublish Year:2020Massimo Chiaradia · Iron oxide copper-gold (IOCG) deposits are a new group of hydrothermal Fe-Cu deposits, the concept of which was recently proposed by Hitzman et al. (1992) initially due to the discovery of the
Consulta
· Mass balance calculations suggest that supergiant porphyry copper deposits (>10 million tonnes copper) require magma volumes (up to >2500 km 3) and magma injection rates (>0.001 km 3 year −1
Consulta
Many diverse ore systems are classified together as iron oxide copper-gold (lOCG) deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic environment, or sources of ore-forming fluid, metals, or other ore components. Such deposits have (1) Cu, with or without Au, as economic
Consulta
Trituradora de piedra vendida por proveedores certificados, como trituradoras de mandíbula/cono/impacto/móvil, etc.
OBTENER COTIZACIÓN