Library

Iron oxide-copper-gold (IOCG) systems, in a broad geophysical sense, include a spectrum of mineralisationstyles ranging from reduced, pyrrhotite-dominant examples, sometimes referred to as iron sulphide coppergold (ISCG) systems, to magnetite-pyrite ...

Full waveform refraction imaging with the common intercept gather (CIG) is a simple application of the stacking procedures routinely employed with seismic reflection data processing to the standard intercept time method. Accordingly, the stacked full...

Various types of igneous rocks have been frequently encountered during hydrocarbon exploration of sedimentary basins along rifted passive margins, and their impacts on hydrocarbon maturation and migration processes are diverse. Buried volcanoes gener...

Full-waveform inversion (FWI) uses the complete seismic wavefield (transmitted, reflected and converted waves) to build the models of subsurface physical properties. We conducted a feasibility study of a 2D elastic FWI applied to the synthetic and fi...

Exploration in Australia’s Beetaloo Sub-basin focuses on the liquids, wet-gas, and dry-gas mature shales of the Kyalla and Velkerri formations. Gas storage in these reservoirs occurs as free gas and additionally through adsorption to the internal p...

Spatial modelling of analysis results such as grade, geochemical properties and density is required for resource estimation in almost all commodities. For spatial modelling of most commodity properties, geostatistical methods are the most popular bec...

This paper presents a case-study of the application of facies-based seismic inversion in the Cooper-Eromanga Basin, South Australia. The technique has been used to support the development of shallow gas fields in the Cretaceous reservoirs of the Coor...

Here we present 3D and 2D resistivity models of the lithosphere beneath an area of southeast Australia, derived from the Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) and a subsequent infill broadband MT transect collected in...

Drill core analytical tools are used for objectively measuring geoscience parameters that aid mineral exploration or groundwater research. Multiple types of geoscience parameters are frequently compared alongside each other, but underlying physicoche...

The Geological Survey of New South Wales (GSNSW) has a vertically integrated workflow for delivering geophysical data and products. Raw geophysical data are acquired through regional scale, statewide and national surveys, laboratory measurements, and...

Routine seismic imaging algorithms often require velocity models. Therefore, accuracy of velocity models obtained by velocity analysis plays a crucial role in seismic imaging. Seismic velocity analysis in CMP domain has been dominated by the use of a...

Sustainable groundwater management plans are of critical importance to the future of increasingly scarce water resources. Borehole magnetic resonance (BMR) is a wireline logging technique used to provide in-situ formation evaluation. BMR can be utili...

The proliferation of open software and hardware, such as Micropython and other GNU-based licensing of generic embedded computing platforms provides largely readymade data acquisition and data fusion platforms that allow many geophysicists to make the...

The Gulf of Carpentaria was extensively explored in the 1970s and 1980s targeting the Carpentaria (Jurassic-Cretaceous) and Karumba (Tertiary) sag basins, the sediments of which show little or no structuring. This activity failed to recognise the pre...

The Loupe TEM is a transient electromagnetic profiling system for efficient mapping of near-surface ground conductivity. The system is operated by a two-person crew who carry the transmitter coil and 3-component receiver coils on backpacks. Benefits ...

Halloysite, a nanotubular version of the more common, platy clay mineral, kaolinite is globally-rare, but present in great abundance in several world-class kaolinhalloysite deposits recently defined on western Eyre Peninsula. Conventionally, halloysi...

Volcanic rocks occur in different types of sedimentary basins, especially those evolving from lithospheric stretching. While volcanoes and other igneous rocks are widespread in the onshore Otway Basin, well-preserved volcanoes have not been documente...

We introduce a sequential inversion workflow where we integrate magnetotelluric and magnetic data. We first perform probabilistic MT inversions, from which we derive 2D or 3D probabilities of observing an interface between rock units of contrasting e...