Formation of albitite-hosted uranium within IOCG systems
Uranium and polymetallic U mineralization hosted within brecciated albitites occurs one kilometer south of the magnetite-rich Au–Co–Bi–Cu NICO deposit in the southern Great Bear magmatic zone (GBMZ), Canada. Concentrations up to 1 wt% U are distributed throughout a 3 by 0.5 km albitization corridor defined as the Southern Breccia …
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A genetic link between iron oxide-apatite and iron skarn …
Both iron oxide-apatite (IOA) and iron skarn deposits are closely associated with intrusive rocks of intermediate to felsic in composition, but whether these two ore types can form from the same magmatic intrusion remains poorly understood. ... (132.3 ± 2.0 Ma), and are consistent with zircon U-Pb ages for the ore-hosting diorite porphyry (130 ...
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Minerals | Free Full-Text | Rare Earth Element …
Olympic Dam is a world-class breccia-hosted iron-oxide copper-gold-uranium ore deposit located in the Gawler Craton, South Australia. It contains elevated concentrations of rare earth elements (REE) which occur as the REE minerals bastnäsite, synchysite, florencite, monazite, and xenotime. This is the first study to focus on the …
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Iron Oxide
Iron oxides are the systems that have been most studied for two-step thermochemical cycles. The reasons are their availability, performance, and price. The simplest system is FeO/Fe 3 O 4.Using concentrated solar energy at temperatures above 1600 °C, iron(III) oxide (Fe 3 O 4) can be reduced to iron(II) oxide (FeO).Followed by the exothermic …
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Constraints of Fe isotopes on the origin of volcanic-hosted Fe-oxide …
Constraints of Fe isotopes on the origin of volcanic-hosted Fe-oxide deposits: A case study of the Late Cambrian 7918 Fe deposit, North Altun orogenic belt, Xinjiang, NW China. ... These deposits were variably classified as sedimentary-type with hydrothermal overprints, submarine volcanogenic iron-oxide- (SVIO-) type or skarn-type, centered on ...
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The NICO and Sue-Dianne Proterozoic, Iron Oxide-hosted, …
The NICO and Sue-Dianne Proterozoic, Iron Oxide-hosted, Polymetallic Deposits, Northwest Territories: Application of the Olympic Dam Model in Exploration | …
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Light Stable Isotope (O, H, C) Signatures of BIF …
Stable isotope data from hypogene (i.e., below the line of weathering) iron oxides and gangue minerals from BIF-hosted iron ore deposits in Australia, South …
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The Salobo iron oxide copper-gold deposit, …
Oxide-facies banded iron formation in the Third Portage Lake area is hosted by ultramafic and calc-alkaline volcanic rocks and related sedimentary rocks of the Archean (2.8 Ga) Woodburn Lake Group ...
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Gold in iron oxide copper–gold deposits
open access. Highlights. •. Iron oxide copper–gold (IOCG) deposits contain economic or anomalous gold. •. The gold is present as native gold, electrum, and …
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(PDF) The Mineral Potential of the Labrador Trough for Iron Oxide
The broader group includes several low Ti iron oxideassociated deposits that include iron oxide (P-rich), iron oxide (F- and REE-rich), Fe or Cu-Au skarn, highgrade iron oxide-hosted Au ± Cu ...
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Formation of giant iron oxide-copper-gold deposits by
Iron oxide-copper-gold (IOCG) deposits are a globally important source of copper, gold and critical commodities. ... Wälle, M. & Heinrich, C. A. Hematite breccia-hosted iron oxide copper-gold ...
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Origin of the volcanic-hosted Yamansu Fe deposit, Eastern
The Yamansu Fe deposit (32 Mt at 51% Fe) in the Eastern Tianshan Orogenic Belt of NW China is hosted in early Carboniferous volcano-sedimentary rocks and spatially associated with skarn. The paragenetic sequence includes garnet-diopside (I), magnetite (II), hydrous silicate-sulfide (III), and calcite-quartz (IV) stages. Pyrite …
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Hematite Breccia-Hosted Iron Oxide Copper-Gold Deposits …
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 …
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Iron Isotopes Applied to BIF-Hosted Iron Deposits
Abstract. Published and unpublished iron isotope data from banded iron formations (BIF) and their BIF-hosted hypogene (hydrothermal) iron ores from the …
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Ore Minerals : What are Ore Minerals? | Geology Page
Volcanic hosted massive sulfide (VHMS) Cu-Pb-Zn including; Examples include Teutonic Bore and Golden Grove, Western Australia – Besshi type – Kuroko type; Metamorphically reworked deposits. Podiform serpentinite-hosted paramagmatic iron oxide-chromite deposits, typified by Savage River, Tasmania iron ore, Coobina chromite …
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The NICO and Sue-Dianne Proterozoic, Iron Oxide-hosted, …
They are the only known significant Canadian examples of Proterozoic iron oxide-hosted polymetallic deposits. Worldwide, this class includes such deposits as Olympic Dam and Ernest Henry in Australia, Kiruna-Aitik in Sweden, and Salobo in Brazil. Their considerable size, up to 2 billion tonnes, and polymetallic ore assemblages make …
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The NICO and Sue-Dianne Proterozoic, Iron Oxide …
They are the only known significant Canadian examples of the Proterozoic iron oxide-hosted polymetallic class, more commonly referred to as hydrothermal iron oxide copper-gold deposits....
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Iron oxide copper-gold deposits: geology, space-time …
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 …
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The application of rapid potential field methods for the …
Introduction. Iron oxide–copper–gold (IOCG) deposits have an extraordinary range of types and styles that include magnetite-, magnetite-to-hematite and hematite-group deposits, and affiliated deposits such as iron oxide-apatite and albitite-hosted uranium deposits (Corriveau et al., 2010a, Corriveau et al., 2010b, Groves, 2010, Hitzman et al., …
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UNRAVELING MINERALIZATION AND MULTISTAGE …
Precambrian iron oxide copper-gold (IOCG) deposits are generally encountered with multistage hydrothermal overprints and hence have complex isotopic records. Precise dating of ore-forming and over events and assessment of time-resolved metal sources are fundamental for understanding ore genesis. ... (REE) …
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Iron Oxide Copper-Gold (IOCG) Deposits through Earth …
the giant Olympic Dam breccia-hosted iron oxide Cu-Au-U-REE deposit in South Australia focused attention on a hith-erto poorly known type of ore system (Roberts and Hudson, 1983). Following the classic studies of Oreskes and Einaudi (1990, 1992), the term iron oxide Cu-Au (or IOCG) deposit was introduced by Hitzman et al. (1992) and has been …
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Iron-rich rocks unlock new insights into Earth's planetary …
Metamorphosed banded iron formation from southern Wyoming showing deformation and folding. The rock is approximately 2.7 billion years old. Dark bands are iron oxides (magnetite, hematite) and ...
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Textural and compositional constraints on the origin
The Lakeh Siah iron oxide-apatite deposit occurs within the Cambrian succession of volcanic tuffs and rhyolitic rocks intercalated with dolomites, dolomitic limestones, and evaporites. Magnetite is the dominant ore mineral, accompanied by apatite, amphibole, diopside, calcite, and andradite garnet. Apatite, allanite, and titanite are the …
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Geochemical Data Analysis of Iron Oxide Copper-Gold …
Geochemical Data Analysis of Iron Oxide Copper-Gold Mineralization, Wirrda Well Prospect, South Australia ... The mineralization is hosted by the ~1.85 Ga Donington Granitoid Suite and abundant mafic dikes, the majority of which are considered to predate mineralization. Five lithogeochemical clusters are defined from PCA, ...
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Iron oxide copper-gold (IOCG) deposits
Characteristics of ten of the world's metallogenic provinces hosting iron oxide Cu-Au (IOCG) deposits have been critically assessed, including their geological and tectonothermal evolution, alteration-mineralisation parageneses, and ore geochemistry. A new classification framework is proposed in which IOCG deposits form the major part of a ...
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RETRACTED ARTICLE: Formation of giant iron oxide-copper …
Iron oxide-copper-gold deposits are a globally important source of copper, gold and critical commodities. ... Wälle, M. & Heinrich, C. A. Hematite breccia-hosted iron oxide copper-gold deposits ...
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Genesis of the Heneshk IOCG deposit, Iran: magnetite …
The Heneshk Fe ± Cu deposit, a metamorphosed IOCG (Iron Oxide Copper Gold) is situated in Sanandaj-Sirjan Zone, SW Iran. Mineralization occurs as two stratabound 'U' shape ore bodies, hosted by a meta-dolomite member of a metamorphic complex. The ore and gangue minerals comprise magnetite, chalcopyrite, hematite, …
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Iron Isotopes Applied to BIF-Hosted Iron Deposits
By analogy, the δ 56 Fe isotopic composition of iron oxide minerals in other iron ore systems hosted in itabirite, such as at Simandou (Guinea; Cope et al. 2008), could be analyzed in order to test whether metamorphism, or the lack thereof, and deformation in these deposits is linked to specific hydrothermal fluids, and whether δ 56 Fe may be ...
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POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS …
Igneous-hosted ore: In the central, hottest parts of mineralized systems, igneous host rocks are altered to quartz sericite-pyrite and quartz-clay (argillic) assemblages that grade into distal propylitic (epidote, chlorite, pyrite, ... iron oxide minerals (limonite), cerargyrite, and jarosite, tend to be relatively insoluble and indicative of ...
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Tiny particles building huge ore deposits – Particle-based
The world's major source of iron ore is hosted in Precambrian banded iron formations. These chemical (meta-) sedimentary rocks are composed of alternating laminae of iron oxide minerals and chert. Despite the economic significance of high-grade iron ore deposits, controversy persists after decades of research on how banded iron formations ...
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