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Genesis of High-Grade Hematite Orebodies of the

The Hamersley iron ore province of Western Australia contains world-class high-purity hematite orebodies hosted within Lower Proterozoic banded iron formations …

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Trace element catalyses mineral replacement reactions and

It is further noted that in deposits throughout the giant Olympic Dam IOCG province in South Australia, the ores are hosted in hematite-rich breccia, and ore grade, brecciation intensity, and ...

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Origin of the supergiant Olympic Dam Cu-U-Au-Ag deposit, …

The supergiant Olympic Dam Cu-U-Au-Ag ore deposit of South Australia occurs in a tectonic-hydrothermal breccia complex that is surrounded by Mesoproterozoic granite. The breccia is composed mainly of granite clasts and minor amounts of Mesoproterozoic volcanic clasts. Very thick (>350 m) sections of bedded sedimentary …

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Paul DUURING | Senior Geologist | PhD | Geological Survey …

Paul DUURING, Senior Geologist | Cited by 1,052 | of Geological Survey of Western Australia, Perth | Read 57 publications | Contact Paul DUURING

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Comment on "Combined igneous and hydrothermal source …

The Ediacaran Bafq magnetite-apatite-pyrolusite-jaspilite ore deposits (1.7Gt@50% Fe, 0.08–7.78% P, 0.01–5% Mn) are located at 31°–33°N, 55°–57°E, cover an area of about 2400 km 2 and are structurally faulted-bounded by the Kuhbanan-Davaran structural zone (Fig. 1).The region is a part of the Tethyan margin of Gondwana and …

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Tectonic significance of Australian rare earth element deposits

In general, Australia's inventory of REE ore deposit types is similar to global record, with a majority related to carbonatites, peralkaline igneous rocks and IOCG …

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Igneous rock | Characteristics, Examples, …

Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock. Igneous rocks …

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(PDF) Geology and mineralogical zonation of …

The deposit is located within a hematite-rich hydrothermal breccia complex, known as the Olympic Dam Breccia Complex (Reeve, 1990), hosted by the Roxby Downs Granite, part of the Hiltaba Suite ...

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The geology and genesis of high grade hematite ore deposits

This paper presents a first summary of results of an ongoing study, started some two years ago, of high-grade iron ore deposits in South Africa, India and Brazil, including a comparison with the ...

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[PDF] The fluorine link between a supergiant ore deposit …

DOI: 10.1130/G33378Y.1 Corpus ID: 106402168; The fluorine link between a supergiant ore deposit and a silicic large igneous province @article{McPhie2011TheFL, title={The fluorine link between a supergiant ore deposit and a silicic large igneous province}, author={Jocelyn McPhie and Vadim Kamenetsky and S. R. Allen and Kathy Ehrig and …

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Igneous Rocks: Everything You Need to Know

There are three great categories of rocks: igneous, sedimentary, and metamorphic. Most of the time, they're simple to tell apart. They are all connected in the endless rock cycle, moving from one form to another and changing shape, texture, and even chemical composition along the way.

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The Geology and Genesis of High-Grade Hematite Iron …

understanding of the origin of high-grade hematite iron ore deposits may be gained by combining available mining-orientated data with systematic petrographic-geochemical

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The Yungul carbonatite dykes associated with the epithermal …

The Yungul carbonatite dykes at Speewah in the Kimberley region of Western Australia were emplaced along a north-trending splay from the northeast-trending Greenvale Fault located at the western boundary of the Halls Creek Orogen. The Yungul carbonatite dykes intrude a thick composite sill of the Palaeoproterozoic Hart Dolerite …

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Ti–V magnetite stratigraphy of the Upper Zone of the Windimurra Igneous

Titaniferous magnetite deposits of igneous or metamorphic origin occur as tubular bodies, ... and there is magnetite or hematite dusting in the olivine cores. Dunite from 306.98 to 307. ... Report, For the Period 7 July 2009 to 23 July 2010. Geological Survey of Western Australia, WAMEX Report A119779, Perth, Australia, 11 pp plus …

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From a Mining Mindset to Regional Discovery: A Case …

The deposits identified in the Tiris Complex invariably are dominated by magnetite and have typical grades between 30 and 35% Fe, while the deposits identified in Kediat Ijil …

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The geology and genesis of high-grade hematite …

The Geology and Genesis of High-Grade Hematite Iron Ore Deposits N J Beukes 1, J Gutzmer 1 and J Mukhopadhyay 1,2 INTRODUCTION Most world-class high-grade (60 - 67 wt per cent Fe) hematite iron ore …

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Iron (Fe) Ore | Minerals, Occurrence » Geology Science

Hematite is found in large quantities in iron ore deposits such as the Pilbara region of Western Australia, the Mesabi Range in Minnesota, USA, and the Carajás mine in Brazil. Magnetite (Fe3O4): Magnetite is a magnetic iron oxide mineral that is commonly found in igneous and metamorphic rocks, as well as in some sedimentary rocks .

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Banded Iron Formation-Related Iron Ore Deposits of the …

The Hamersley province of northwest Western Australia is one of the world's premier iron ore regions. The high-grade iron ore deposits are mostly hosted within banded iron formation (BIF) sequences of the Brockman and Marra Mamba Iron Formations of the Hamersley Group and consist of two types: martite-microplaty hematite containing …

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Why Australia has so much uranium

Origin of rare earth element-enriched hematite breccias at the Olympic Dam Cu-U-Au-Ag deposit, Roxby Downs, South Australia. Economic Geology 85:1-28. Reeve JS, Cross KC, Smith RN & Oreskes N. 1990. Olympic Dam copper-uranium-gold deposit. In: Hughes FE (ed), Geology of the Mineral Deposits of Australia and Papua New Guinea.

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Hematite: A primary ore of iron and a pigment …

Hematite's Streak: All specimens of hematite will produce a reddish streak. The streak of a mineral is its color in powdered form when scraped across a streak plate (a small piece of unglazed porcelain used to produce a …

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LITHOLOGICAL DIVERSITY OF THE VERGENOEG …

Crocker, I.T., 1985 - Volcanogenic Fluorite-Hematite Deposits and Associated Pyroclastic Rock Suite at Vergenoeg, Bushveld Complex. Economic Geology 80, 1181—1200.

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Resistivity and Induction polarization technique for …

As hematite ore deposit can be conductive due to its porosity. This characteristic leads electrical methods, especially Electrical Resistivity and Induced Polarization (IP&RS), to …

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Channel iron deposits of the Hamersley Province, Western Australia

The fluvial goethite–hematite channel iron deposits (CID) of the Pilbara region of Western Australia, formerly known as the 'Robe Pisolite', represent a major source of iron ore mined in the Hamers...

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FTIR spectral signatures of amazon inorganic phosphates: Igneous …

In deposits of sedimentary origin, apatite crystals usually occur associated with calcite, dolomite, clay minerals, and iron oxyhydroxides, such as goethite and hematite. In these deposits, the carbonate-apatite Ca 5 (PO 4,CO 3 ) 3 ·(OH,F) and francolite or carbonate-fluorapatite Ca 5 (PO 4, CO 3 ) 3 ·(F,OH) varieties predominate …

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High-precision dating of the Kalkarindji large igneous …

5 Geological Survey of Western Australia, 100 Plain Street, East Perth, Western Australia 6004, Australia 6 Department of Mineralogy, Swedish Museum of Natural History, Box 50007, SE-10504 ...

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The geological characteristics, geochemical signature …

AEGC 2019: From Data to Discovery – Perth, Australia 2 Examples of large Type I deposits include Batu Hijau, Panguna, Endeavour 26N, Yerington, Bajo de la …

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Minerals | Free Full-Text | Mineralogy and Distribution of REE …

The Mount Weld rare earth element (REE) deposit, Western Australia, is one of the largest of its type on Earth. Current mining exploits the high-grade weathered goethite-bearing resource that lies above, and which represents the weathering product of a subjacent carbonatite. The mineralogy, petrography, deportment of lanthanides among …

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PorterGeo Database

Descriptions of major ore deposits world wide. The main iron ores of the Hamersley province are hosted with in the Archaean to Palaeoproterozoic volcanic and sedimentary sequence the Mount Bruce Supergroup which spans a time interval of over 400 Ma, from greater than 2770 Ma to near 2350 Ma. It rests unconformably on 3.50 to 2.80 Ga …

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Rare Earth Element Deposits of Alkaline Igneous …

Alkaline igneous complexes host deposits of rare earth elements (REE), which represent one of the most economically important resources of heavy REE and Yttrium (Y). The hosts are differentiated …

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Geologic setting and origin of Terra Meridiani hematite deposit …

[1] We have completed a regional analysis of the hematite deposit in Terra Meridiani and conclude that the unit is in the midst of a 600-m-thick stack of friable layered materials superposed on Middle and Late Noachian cratered terrain. The deposits resemble terrestrial pyroclastics in the fact that they are: (1) thin, parallel bedded deposits that …

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Age constraints on the hydrothermal history of the Prominent …

The Mesoproterozoic Prominent Hill iron-oxide copper–gold deposit lies on the fault-bound southern edge of the Mt Woods Domain, Gawler Craton, South Australia. Chalcocite–bornite–chalcopyrite ores occur in a hematitic breccia complex that has similarities to the Olympic Dam deposit, but were emplaced in a shallow water …

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Genesis of superimposed hypogene and supergene Fe …

The Madoonga iron ore body hosted by banded iron formation (BIF) in the Weld Range greenstone belt of Western Australia is a blend of four genetically and compositionally distinct types of high-grade (>55 wt% Fe) iron ore that includes: (1) hypogene magnetite–talc veins, (2) hypogene specular hematite–quartz veins, (3) …

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Origin of rare earth element-enriched hematite breccias at …

Hematite occurs as euhedral laths and fine-grained aggregates in the matrices of all breccia types, in veins and fragments, as pseudomorphs after feldspar, …

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