Regional targeting criteria for gold in the Yilgarn Craton: which ones work and how well?

Regional targeting criteria for gold in the Yilgarn Craton have been described and assessed using GIS spatial analysis, as part of the Yilgarn Gold Exploration Targeting Atlas, a collaborative project involving the Geological Survey of Western Australia (GSW...

Subduction Polarity Reversal, Complex Slab Interactions and Rapid Changes to Arc Extension: Halmahera Island Arc, Indonesia

The active island arc of Halmahera, is located in a unique tectonic setting at a polarity reversal between the subducting Molucca and Philippines Sea Plates.

Molecular characterisation of the dissolved organic matter of wastewater effluents by MSSV pyrolysis GC–MS and search for source markers

The objectives of the study were twofold: (1) a search for molecular markers diagnostic of treated
waste waters; and (2) a comparison of the EFF organic characterisation merits of MSSVpy and Flash-py.

Initiation of Rayleigh-Taylor instabilities in intra-cratonic settings

A new model of instability development in the lithosphere is presented whereby Rayleigh-Taylor instabilities are initiated as a result of heterogeneities in plastic strength within the lithosphere. Such a model does not depend on large initial variations in the thickness or den...

Spatial Mathematical Model for Mineral Potential Mapping

A key problem in spatial-mathematical-model-based mineral potential mapping is the selection of appropriate functions that can effectively approximate the complex relationship between target mineral deposits and recognition criteria. This paper evaluates a series of spatia...

Identification of optimal conditions for komatiite-hosted nickel sulfide formation: non-mass dependent S isotopes from various reservoirs of the north Eastern Goldfields, Western Australia

This study aims to compare the NMD sulphur isotope compositions of komatiite-hosted nickel sulfide deposits and the various sulfur reservoirs available in the north Eastern Goldfields. Initial analyses have been completed on the Windarra komatiite-hosted nickel sulfide deposit...

Suppression of vegetation in multispectral remote sensing images

Vegetation cover is an impediment to the interpretation of multispectral remote sensing images for
geological applications, especially in densely vegetated terrains. In order to enhance the underlying
geological information in such terrains, it is desirable to suppr...

Automatic Identification of Responses from Porphyry Intrusive Systems within Magnetic Data using Image Analysis

This paper presents an automatic image analysis system for gridded data that provides an efficient, accurate and non-subjective way to seek the magnetic response of an idealised porphyry mineralising system within magnetic datasets. The method finds circular anomalies that are...

Global variability in the platinum-group element contents of komatiites.

We report a large volume of high-precision platinum-group element (PGE) data generated from Archaean and some Early Proterozoic komatiites and komatiitic basalts spanning a wide range of ages (from ca. 3.5 Ga to ca. 2.0 Ga), petrological affinities (Munrotype, Barberton-type an...

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