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(PDF) Magnetite bombs at El Laco volcano, Chile

The Pliocene El Laco deposits of magnetite-apatite iron ore of the Kiruna type, situated on the flanks of a volcano in northern Chile, can morphologically and structurally be described as ...

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Evidence for iron-rich sulfate melt during magnetite(-apatite

Magnetite-(apatite) ore deposits are interpreted as being formed by the crystallization of iron-rich ultrabasic melts, dominantly generated by the interaction of silicate melts with oxidized P-F ...

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Iron ore | BHP

Iron ores are rocks and minerals from which metallic iron can be extracted. There are four main types of iron ore deposit: massive hematite, which is the most commonly mined, magnetite, titanomagnetite, and pisolitic ironstone. These ores vary in colour from dark grey, through to deep purple, rusty red and bright yellow.

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A review of magnetite geochemistry of Chilean iron oxide …

DOI: 10.1016/j.oregeorev.2020.103748 Corpus ID: 224948064; A review of magnetite geochemistry of Chilean iron oxide-apatite (IOA) deposits and its implications for ore …

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New contributions to the understanding of Kiruna-type iron …

1. Introduction. Iron oxide-apatite (IOA) deposits, also known as Kiruna-type and magnetite-apatite deposits, are considered the Cu-deficient end-member of the iron oxide-copper–gold (IOCG) clan (Williams et al., 2005).Both of these deposit types are economically important as sources of commodities such as Fe, Cu, Au, U, and REE …

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Formation of iron oxide–apatite deposits

Key points. Iron oxide–apatite deposits can form from purely igneous (~1,000–800 °C), through late magmatic or magmatic–hydrothermal (~800–600 °C), to purely hydrothermal (<600 °C ...

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The chemistry of hydrothermal magnetite: A review

The minimum oxygen fugacity for any given temperature at which magnetite is stable is the iron-magnetite (IM) or magnetite–wüstite (MW) buffer (Buddington and Lindsley, 1964, Frost, 1991a). The fayalite–magnetite–quartz (FMQ) buffer marks the limit above which Fe is mostly incorporated into magnetite.

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NEW FIELD EVIDENCE BEARING ON THE ORIGIN OF THE EL LACO MAGNETITE

Sir: The El Laco ores occur as massive, horizontal, tabular bodies, as crosscutting dikes and/or vein networks, and as stratified, fragmental material. A controversy exists as to their origin. One group of investigators believes the orebodies formed from iron oxide magma that intruded the local volcanic sequence and in places erupted at the …

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Magmatic origin of giant 'Kiruna-type' apatite-iron-oxide …

The δ 18 O values of all GMD magnetite samples, including vein and disseminated magnetite types [n = 7] as well as magnetite inclusions in hematite ore [n = 2] range from −0.4 to +3.7‰.

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iron ore quarring crushing and screening in chile

400tph Iron Ore Stone Crushing Line In Chile,Latin Location : Copiapo, Chile Raw material : Iron Ore Maximum feeding size : 750mm Final products size : 6mm Capacity : 400tph Equipment list : Jaw crusher PE900x1200, Cone crusher CSB240, 4 sets VSI5X sand making machine, Vibrating screen 3YZS2160chile iron ore 353 products A wide variety …

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Invited Review ArticleA review of magnetite geochemistry of …

1. Introduction. Magnetite (Fe 3 O 4) is a common accessory mineral in igneous, metamorphic and sedimentary rocks and can form under a wide range of …

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(PDF) Magmatic features of iron ores of the Kiruna type in Chile …

Columnar magnetite, has been found in two other apatite iron provinces: the Cretaceous iron belt in Chile and the Early Proterozoic Kiruna ore field in Sweden. Platy magnetite, another dendritic ...

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Iron Ore | Geoscience Australia

In 2018, Australia's EDR of iron ore increased by 3% from 2017 to 49 604 Mt (Table 3). Similarly, there was a 4% EDR increase of contained iron to 24 122 Mt (Table 4). EDR attributable to magnetite deposits have decreased by 1%, likely due to re-assessment of projects and inactivity in the magnetite industry.

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Trace element geochemistry of magnetite from the Cerro …

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    Magnetite spherules in pyroclastic iron ore at El Laco, Chile

    WebThe El Laco iron deposits in northern Chile consist of magnetite (or martite) and minor hematite, pyroxene, and apatite. The orebodies are situated on a volcanic …

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  • A review of magnetite geochemistry of Chilean Iron Oxide

    Request PDF | On Sep 10, 2020, Gisella Palma Lira and others published A review of magnetite geochemistry of Chilean Iron Oxide-Apatite (IOA) deposits and its implications …

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    IRON ORE MAGNETITE CHILE FOB 64% maximum 62% minimum …

    IRON ORE MAGNETITE CHILE FOB 64% maximum 62% minimum

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    The Geochemistry of Magnetite and Apatite from the El …

    The Geochemistry of Magnetite and Apatite from the El Laco Iron Oxide-Apatite Deposit, Chile: Implications for Ore Genesis Nikita L. La Cruz,1,2,† J. Tomás …

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    Iron Ore Quarring Crushing And Screening In Chile

    iron ore mines crusher in chile. mobile crusher for iron ore in chile. Iron Ore Crushing Plant Capex Chile . Model Project Report For Iron Crushing Plant 300400TPH Iron Mining Project in Copiapo Chile This project is located in Copiapo in Chile and it is a very important iron ore mining project After filed inspection our engineer designed a flowchart with PE …

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    IRON ORE MAGNETITE CHILE FOB 64% maximum 62% minimum …

    119 views, 2 likes, 0 loves, 0 comments, 0 shares, Facebook Watch Videos from Iron ore: IRON ORE MAGNETITE CHILE FOB 64% maximum 62% minimum

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    screening of iron ore in chile

    300-400TPH Iron Mining Project in Copiapo, Chile - ... Location: Copiapo in Chile. Equipment: Four sets of sand making machine VSI5X1145, jaw crusher PE900X1200, cone crusher CSB240 and vibrating screen 3YZS2160.

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    A review of magnetite geochemistry of Chilean iron oxide …

    Magnetite is the most important iron ore in iron oxide-apatite (IOA) deposits which represent the Cu-poor endmember of the iron oxide-copper-gold (IOCG) clan. Magnetite …

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    Oxygen isotope composition of magnetite in iron ores …

    Magnetite from ore with a magmatic texture has a mean of 3.7‰, and the mean for magnetite intergrown with pyroxene in veins is 2.4‰. Oxygen isotope data given here, fluid

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    Types of Iron Ore: Hematite vs. Magnetite

    The deposit was discovered in 1844, and ore was first mined there in 1848, as per the Michigan government's website. Among the four types of iron ore deposits found in this area are magnetite ore and hematite ore. In Minnesota, magnetite ore is mined mainly in the Mesabi Range, one of the four ranges that make up the Iron Range of Minnesota.

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    (PDF) Magmatic iron ores and associated …

    Figure 6: Magnetite spindle bomb in pyroclastic iron ore with bedding, Laco Sur. Figure 5: Gas escape tube in iron ore, Laco Sur . …

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    Fluid inclusions in magnetite-apatite ore from a cooling …

    The Pliocene El Laco deposits of magnetite-apatite iron ore of the Kiruna type, situated on the flanks of a volcano in northern Chile, can morphologically and structurally be described as extrusive and intrusive magmatic orebodies with hydrothermal over. ... Minimum temperature for the crystallization of this apatite is 400–500°C ...

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    The role of the subducting slab and melt crystallization in the

    The Mesozoic magnetite-(apatite) deposits of the Coastal Cordillera of Chile are interpreted as the product of the crystallization of oxidized iron-rich melts and subsequent hydrothermal alteration produced by related magmatic-hydrothermal systems. These deposits form a regional-scale mineral system controlled by the Atacama Fault …

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    Evidence for iron-rich sulfate melt during magnetite(-apatite

    We characterize the ore-forming fluids at El Laco by detailed analyses of inclusions hosted in ore-stage diopside-magnetite-anhydrite veins from the Pasos Blancos orebody (Fig. 1; Table S1 in the Supplemental Material 1). We focus on assemblages of primary inclusions, and our results show that an Fe-rich sulfate melt was present during ...

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    Evidence for iron-rich sulfate melt during magnetite(-apatite

    We characterize the ore-forming fluids at El Laco by detailed analyses of inclusions hosted in ore-stage diopside-magnetite-anhydrite veins from the Pasos …

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    Fluid inclusions in magnetite-apatite ore from a cooling …

    Abstract and Figures. The Pliocene El Laco deposits of magnetite-apatite iron ore of the Kiruna type, situated on the flanks of a volcano in northern Chile, can morphologically and structurally be ...

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    Eco-efficient and cost-effective process design for magnetite iron ore …

    A detailed comparison of four circuit options for magnetite iron ore in terms of cost- and eco-efficiency. Eco-efficient and cost-effective process design is examined by comparing four circuit options. ... however, …

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