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High-grade Iron ore at Windarling, Yilgarn craton: a product of syn-orogenic deformation, hypogene hydrothermal alteration, and supergene modification in an Archean BIF–basalt lithostratigraphy

Banded iron formation (BIF) hosted iron ore deposits in the Windarling Range are located in the lower greenstone succession of the Marda-Diemals greenstone belt, Southern Cross domain, Yilgarn craton, and constitute a total hematite-martite-goethite ore resource of minimu...

Iron Systems

Thomas Angerer, Steffen Hagemann,...

19 November 2012

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Komatiite Magmas and Sulfide Nickel Deposits: A Comparison of Variably Endowed Archean Terranes

Komatiites are found in most Archean granite-‐greenstone terranes, but sulfide Ni mineralization associated with these rocks has a very biased distribution. The global endowment of sulfides Ni in Archean komatiites is overwhelmingly dominated by the Kalgoorlie terrane of the E...

Magmatic Mineral Systems

Stephen J. Barnes, Marco L. FIORE...

8 October 2012
The oxidized ores of the Main Sulfide Zone, Great Dyke, Zimbabwe: Turning resources into minable reserves – mineralogy is the key.

Near-surface oxidized platinum-group element (PGE) ores have a great potential. However, all attempts to extract the PGE from this ore type proved uneconomic due to low PGE recoveries. This paper gives an overview on options and recent advances regarding the recovery of the PGE...

Magmatic Mineral Systems

T. Oberthür, P. Buchholz, F. Melc...

30 September 2012

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Mapping from an Armchair: Rapid, High-Resolution Mapping Using UAV and Computer Vision Technology

Here, we describe the deployment of a UAV to survey outcrop in ultra-high resolution using a standard small format digital camera, combined with the novel application of computer vision techniques to both process the data and semi-automatically map from the imagery.

Geophysics & Image Analysis

Arko Lucieer, Eun-Jung Holden, Pe...

25 September 2012

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The geological setting and petrography of the O’Callaghans granite and W skarn mineralization in the Telfer area, Paterson Orogen, Western Australia

The O’Callaghans granite (OCG) and associated skarn deposit are situated in the Paterson Orogen, Western Australia, about 1300 km north-northeast of Perth. The OCG is part of a series of Neoproterozoic I-type intrusions (e.g., the Mount Crofton, Wilki, Minyari and O&rsquo...

Gold Systems

Geoff Batt, Christian Schindler,...

22 September 2012
Geochemistry of a komatiitic, boninitic, and tholeiitic basalt association in the Mesoarchean Koolyanobbing greenstone belt, Southern Cross Domain, Yilgarn craton: Implications for mantle sources and geodynamic setting of banded iron formation

Komatiite–basalt magmatism and Algoma-type banded iron formation (BIF) of Archean greenstone terranes have common time series, but there are few constraints on the geodynamic setting in which BIF were precipitated. The ∼3.0 Ga Koolyanobbing greenstone belt (...

Iron Systems

Thomas Angerer, Steffen Hagemann,...

12 September 2012

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Where Are Australia’s Mines of Tomorrow?

The paper primarily reviews the latest available mineral exploration statistical information provided by the Metals Economics Group (MEG), by MinEx Consulting and the Australian Bureau of Statistics (ABS) (2012). It also reviews the survey of mining companies’ perceptions...

Progressive Risk and Value

Pietro Guj, Richard Schodde

2 September 2012
Multiple Sulfur and Iron Isotope Composition of Magmatic Ni-Cu-(PGE) Sulfide Mineralization from Eastern Botswana

We report here high-precision multiple sulfur and iron isotope compositions for a series of mineralized samples from Ni-Cu-(PGE) sulfide deposits in the Archean Tati greenstone belt and the Phikwe Complex of eastern Botswana.

Magmatic Mineral Systems

Wolfgang Maier, Olivier Rouxel, M...

23 August 2012
Maggie Hays Ni Deposit: Part 2. Nickel Mineralization and the Spatial Distribution of PGE Ore-Forming Signatures in the Maggie Hays Ni System, Lake Johnston Greenstone Belt, Western Australia

The Maggie Hays Ni-‐Cu sulfide deposit, located in the ~2.9 Ga Lake Johnston greenstone belt of Western Australia, is hosted in a peridotitic to dunitic subvolcanic feeder that cuts felsic volcanic rocks and sedimentary units. Ore formation at Maggie Hays is attributed to assi...

Magmatic Mineral Systems

Stephen J. Barnes, Mark E. Barley...

22 August 2012
Maggie Hays Ni Deposit: Part 1. Stratigraphic Controls on the Style of Komatiite Emplacement in the 2.9 Ga Lake Johnston Greenstone Belt, Yilgarn Craton, Western Australia

Komatiites occur in many Archean greenstone belts and host significant Ni sulfide ore deposits. Establishing the stratigraphy and the control that stratigraphy has on the emplacement and morphology of ultramafic magmatism is crucial in understanding Archean geodynamic environme...

Magmatic Mineral Systems

Stephen J. Barnes, Mark E. Barley...

22 August 2012

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