magnetite iron copper

Iron oxide copper-gold (IOCG) deposits (Hitzman et al., 1992) are a diverse family of mineral deposits characterised by the following features: (1) Cu with or without Au, as economic metals, (2) hydrothermal ore styles and strong structural controls, (3) abundant magnetite and/or hematite, (4) Fe oxides with Fe/Ti greater than those in most igneous …

A continuum from iron oxide copper-gold to iron oxide-apatite deposits: evidence from Fe and O stable isotopes and trace element chemistry of magnetite. …

Trace element compositions of magnetite and hematite from 16 well-studied iron oxide–copper–gold (IOCG) and iron oxide apatite (IOA) deposits, combined with partial least squares-discriminant analysis (PLS-DA), were used to investigate the factors controlling the iron oxide chemistry and the links between the chemical composition of …

The magnetite has been reduced to metallic iron (white) around its exterior, but the ulvöspinel laths were not reduced, and two can be seen within the iron rim at upper left.

Magnetite is mined at the Xstrata Copper Ernest Henry Mining operations in the north west of Queensland. The orebody is an iron oxide- copper- gold deposit with magnetite being the form of iron ore. In the past, magnetite was traditionally discarded as tailings at the mine site. However new technology in magnetite

A continuum from iron oxide copper-gold to iron oxide-apatite deposits: evidence from Fe and O stable isotopes and trace element chemistry of magnetite. Econ. Geol. 115, 1443–1459 (2020).

Thermal evolution of Andean iron oxide–apatite (IOA) deposits as revealed by magnetite thermometry. Article Open access 16 September 2021. Introduction. Iron …

Magnetite belongs to the space group Fd3m and has an inverse spinel structure with the general stoichiometry AB 2 O 4 (Bragg, 1915, Fleet, 1981), where A represents a divalent cation such as Mg, Fe 2 +, Ni, Mn, Co, or Zn, and B represents a trivalent cation such as Al, Fe 3 +, Cr, V, Mn, or Ga (Lindsley, 1976a, Wechsler et al., …

The Prominent Hill deposit is a large iron oxide copper-gold (IOCG) resource located in the Olympic IOCG province of South Australia. The deposit is hosted by brecciated sedimentary rocks and structurally underlying lavas of the ca. 1.6 Ga Gawler Range Volcanics. Both rock units are altered and mineralized, forming characteristic …

A continuum from iron oxide copper-gold to iron oxide-apatite deposits: evidence from Fe and O stable isotopes and trace element chemistry of magnetite. Econ. Geol. 115, 1443–1459 (2020).

Cairn Hill has long been considered a deep, magnetite end member of the iron oxide copper-gold (IOCG) family that is largely represented in the southern Olympic …

Request PDF | On Jan 1, 2012, G. Onal and others published Copper, cobalt, nickel and magnetite recovery from iron ore tailing | Find, read and cite all the research you need on ResearchGate

Drilling conducted at Whaleshark by Western Mining Corporation (WMC) in the 1990's, whilst exploring for iron oxide copper-gold, intersected significant widths of magnetite-rich banded iron ...

Textures and Chemical Compositions of Magnetite from Iron Oxide Copper-Gold (IOCG) and Kiruna-Type Iron Oxide-Apatite (IOA) Deposits and Their Implications …

A non-exhaustive list includes Kiruna-type magnetite–apatite deposits, iron oxide copper–gold (IOCG) deposits, gold-rich porphyry copper deposits, magnetite and/or pyrrhotite-bearing volcanogenic massive sulfide deposits, pyrrhotite-rich massive nickel sulfide deposits, and diamondiferous kimberlite pipes.

1. Introduction. The economic interest of iron oxide-apatite (IOA) deposits is due to their mineable quantities of magnetite, hematite and variable amounts of P, Cu, Au, Ag, REE, U, and Co ([6, 42, 102]).After the classification by [34], iron oxide–apatite deposits have gained exploration and research interest worldwide.These deposits show a wide …

Trace element systematics of magnetite from the Starra iron oxide‑copper gold deposits reveals early fluid conditions characteristic for Cu mineralization | Request …

Silician magnetite within ~1.85 Ga lithologies hosting the ~1.6 Ga Wirrda Well iron oxide copper gold (IOCG) prospect, South Australia, was examined at the nanoscale.

Magnetite-rich iron oxide copper-gold deposits (IOCGs) are geologically and geochemically complex and present major challenges to geophysical investigation. They often sit beneath significant ...

The origin of magnetite-(apatite) iron deposits (MtAp) is one of the most contentious issues in ore geology with competing models that range from hydrothermal to magmatic processes. Here we report ...

Cases where both 'early' Fe-oxides and syn-Cu-Au Fe-oxides occur within the same deposit (i.e. part way along the z-axis in Fig. 7, Fig. 8) may include the Salobo deposit where banded iron formation was overprinted by hydrothermal magnetite and Cu ± Fe sulfides (de Melo et al., 2017), and in the Gawler Craton where early magnetite ± ...

The major corrosion mechanisms affect the carbon steel and copper alloys. These include flow accelerated corrosion (FAC) and corrosion fatigue in carbon steel as well as ammonia-induced stress ...

The iron metallogenic province of the Missouri (USA) Proterozoic St. Francois Mountains terrane (SFMT) contains four distinct types of mineral deposits (Table 1): (1) magnetite–hematite bodies that have crystallized from an iron oxide magma and/or from hydrothermal solutions, being similar in some aspects to "Kiruna-type" deposits; (2) iron …

Hydrothermal magnetite from the Starra iron oxide‑copper gold (IOCG) deposit in northwest Queensland, Australia, records a gradual decrease in V, Ni, Cr, and …

The deduced apparent first-order rate constant increased with increasing iron oxide content, oxidation state of the slag, and temperature. The limiting step was the rate of formation of CO 2 at the gas-slag interface. Li studied the reduction of Fe 3 O 4 in copper slag using waste cooking oil.

Iron oxide-copper-gold (IOCG) deposits are a globally important but diverse group of hydrothermal ore deposits showing similarities to porphyry Cu-Au, sedimentary Cu and skarn deposits, reflecting variable fluid chemistry, links to intrusions and tectonic settings. ... Trace elements in magnetite from massive iron oxide-apatite deposits ...

of dam copper otation tailings indicate low Fe grade (6.34 wt%), high SiO 2 grade (63.14 wt%), low magnetite (3.6 wt%), and high iron silicates content (22.72 wt%). The complex mineralogy of these tailings leads to the need of grinding the rougher magnetite pellet feed as fine as 80% of particles smaller than 20 µm (P 80

A continuum from iron oxide copper-gold to iron oxide-apatite deposits: Evidence from Fe and O stable isotopes and trace element chemistry of magnetite. Econ. Geol. 115, 1443–1459 (2020).

MAGNETITE, APATITE, TITANITE, AND ACTINOLITE GEOCHRONOLOGY OF THE CANDELARIA IRON OXIDE - COPPER - GOLD (IOCG) DEPOSIT, CHILE. …

A Copper-magnetite iron ore-type deposit was discovered in 1971 by the Geological Survey Department of Sri Lanka in Seruwila in Trincomalee District. This deposit is composed of magnetite, chalcopyrite, pyrrhotite, and pyrite with several other gangue minerals (Herath, 1995). Investigations have revealed that the deposit is composed of an …

This paper documents element mobility patterns from a magnetite-group Iron Oxide Copper–Gold (IOCG) prospect in the Northwest Territories of Canada and explores implications for space–time chemical evolution of metasomatic systems hosting IOCG deposits. The Fab system, located in the Great Bear magmatic zone (GBMZ) of the …

Many analyses of magnetite grains from the skarn deposits plot variably in the banded iron formations (BIF), iron oxide–copper-gold (IOCG), or porphyry Cu fields using the Ti + V versus Ca + Al + Mn discrimination diagram.

The Lα, Kα, and Kβ peaks of iron are observed at energy values of 0.5, 6.4, and 7.1 keV, respectively. Copper peaks were also observed at about 0.7, 8.1, and 8.95 keV. Copper peaks have lower intensity than iron peaks. The weight percentage of copper is 12.04%, with carbon and iron accounting for 4.59 and 83.37 wt% of the samples, …

Which is correct about Magnetite iron ore? (a) Magnetite is the most important industrial iron ore in terms of the quantity used. (b) Magnetite has the inferior magnetic qualities which is not valuable in the electric industry. (c) It is the finest iron ore with a very high content of iron up to 70%. (d) It has a slightly lower iron content ...

The trace element compositions and textures of magnetite, along with temperature estimations for magnetite crystallization, are consistent with the manto magnetite belonging to an iron oxide-apatite (IOA) style mineralization that was overprinted by a younger, structurally controlled IOCG event that formed the hydrothermal unit …

Magnetite Mines has signed an MOU with Port Pirie Regional Council, a local government area in South Australia, to develop Port Pirie into a future hub for green iron production. This initiative aligns with the global steel industry's shift towards decarbonisation and the anticipated Green Iron & Steel Strategy by the South Australian ...

Magnetite is the dominant Fe-oxide at the Acropolis IOCG prospect, Olympic Dam district, South Australia. Complementary microbeam techniques, including scanning transmission electron microscopy (STEM), are used to characterize titanomagnetite from veins in volcanic rocks and Ti-poor magnetite from a granite body with uplifted position …

The Mesozoic iron oxide-copper-gold (IOCG) subprovince of littoral south-central Peru, centered at latitude 15°11′ S, longitude 75°6′ W, incorporates Marcona, the preeminent central Andean iron oxide deposit (1.9 Gt@ 55.4% Fe), and Mina Justa, one of the few major Andean IOCG deposits with economic copper grades (346.6 Mt @ 0.71% Cu). …

@article{Hohl2024TraceES, title={Trace element systematics of magnetite from the Starra iron oxide‑copper gold deposits reveals early fluid conditions characteristic for Cu mineralization}, author={Max Hohl and Jeffrey A Steadman and Jonathan Cloutier and Shaun L.L. Barker and Ivan Belousov and Karsten Goemann and David R. Cooke}, …

Microscopic observation shows that coarse-grained magnetite in the iron ores is mushketovite, and fine-grained magnetite occurs as granular magnetite. This indicates that mushketovite (Mag1) formed earlier than granular magnetite ... Daye region's Daye iron-copper deposit and Chengchao iron deposit; Fig. 7, Fig. 8; Ciobanu and …