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District to Camp Controls on the Genesis of Komatiite-Hosted Nickel Sulfide Deposits, Agnew-Wiluna Greenstone Belt, Western Australia: Insights from the Multiple Sulfur Isotopes

The Agnew-Wiluna greenstone belt of Western Australia is the largest komatiite-hosted nickel sulfide belt in the world and contains two world-class Ni-Cu-(PGE) deposits and a host of smaller deposits. This study focuses on the broader scale geology of this greenstone belt in or...

Magmatic Mineral Systems

Steve Beresford, Ray Cas, Paul Du...

21 August 2012
Preliminary results from fluid inclusion petrography and microthermometry on quartz and calcite from different types of orebodies at the Telfer Au-Cu deposit, Paterson Orogen, Western Australia

There is no detailed information on the P-T-X conditions of the ore forming fluids available on the different orebody types at Telfer and the surrounding satellite prospects. This study will also help to understand the possible fluid and metal source (s) (e.g. surrounding grani...

Gold Systems

Christian Schindler, Steffen Hage...

10 August 2012
Addressing challenges with exploration datasets to generate usable mineral potential maps

Mineral potential mapping using GIS can pose many challenges in terms of data availability (eg. non-existent information, lack of digital data, limited understanding of mineral system) and data quality (eg. inaccurate locations or attributes, inhomogeneous mapping detail, incom...

Gold Systems

Arianne Ford

4 August 2012
Nickel mineral systems within an evolving Archean Craton

Nickel mineral systems in the Archean Yilgarn Craton of Western Australia are hosted by komatiites which cluster in space and time. At ~2.9 Ga, komatiite-hosted nickel systems are concentrated in the southern Youanmi Terrane, whereas at 2.7 Ga deposits are primarily located in...

Magmatic Mineral Systems

T. Campbell McCUAIG, Steven J. Ba...

4 August 2012
Laser ablation ICP-MS analysis of ruthenium in chromite — a new tool in the exploration for komatiite-hosted nickel-sulphide deposits

Komatiites contain some of the world’s highest-grade nickel-sulphide deposits. Accordingly, the development of reliable prospectivity indicators to guide exploration towards mineralised komatiite units has been a long-standing goal. Specifically, the development of effect...

Magmatic Mineral Systems

Stephen J. Barnes, Norman J. Pear...

4 August 2012
Prospectivity mapping for multi-stage epithermal gold mineralization in Argentina

Three distinct periods of epithermal-style Au-Ag mineralization are defined in Argentina. A low sulfidation epithermal mineralization event in the Permo-Triassic occurred along the eastern margin of the Cordillera Frontal in the San Juan province, which hosts among others the C...

Gold Systems

Ana FOGLIATA, Augusto MOL, John M...

4 August 2012
Mineralogy and geochemistry of Neoproterozoic granites in the Telfer region, Paterson Orogen, Western Australia

The Telfer area in the Paterson Orogen of Western Australia is relatively unique in Australia because of the presence of late Neoproterozoic granites (e.g., the Mount Crofton, Minyari, Wilki and O’Callaghans granites) that have intruded metamorphosed sedimentary rocks aro...

Gold Systems

Geoff Batt, Christian Schindler,...

4 August 2012
Metamorphic microstructures in komatiite hosted-Ni sulphides from the Yilgarn Craton, Western Australia

Most Western Australian komatiite-hosted nickel-sulphide deposits have undergone variable degrees of metamorphism. In this study, we investigated microstructures in massive nickel-sulphides from high- and lowgrade metamorphic rocks by combining optical microscopy, electron back...

Magmatic Mineral Systems

Zoja Vukmanovic, Steven J. Barnes...

4 August 2012
The first multiple sulphur isotope evidence for a 2.9 Ga Mesoarchean sulphate reservoir linked to a major volcanic event

The relationship between the evolution of Earth’s atmosphere and hydrosphere during the Archean and helping life start are important and mass-independent fractionation (MIF) of multipe sulphur
isotopes caused by ultrviolet photolysis of atmospheric SO2 is a key cont...

Magmatic Mineral Systems

Sue Golding, Mark Barley, Marco F...

4 August 2012
Geochemical, Sr-Nd-Pb, and zircon Hf-O isotopes of Cenozoic K-adakitic and shoshonitic granitoid rocks in Western Yunnan, SW China: Petrogenesis and tectonic implications

Coeval and cospatial shoshonitic and K-adakitic felsic intrusions (37-32Ma) are recognized in western Yunnan, SW China. Shoshonitic syenites and quartz monzonites have high K2O (4.9-6.8 wt%) and K2O/Na2O (1.1-1.7), enriched LREE and LILE, and depleted Nb, Ta, Ti, P with high Y...

Magmatic Mineral Systems

Zeng-qian HOU, T. Campbell McCUAI...

4 August 2012

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