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Biochemical and mechanical dispersion mechanisms of Au and As in areas covered by Permian glacial sediments and aeolian sand
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Walid Salama*, Ravi Anand, Tsing Bohu
- Date Published: September 2019
Abstract:
The most northeastern Yamarna Terrane consists of deeply weathered Archean basement and is covered by weathered Permian glacial sediments and recent aeolian sand dunes. This transported cover setting and regolith-landscape influences the effectivenes...
Identification of deep coal seam families using machine learning
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Tauqir Moughal*, Irina Emelyanova, David S. Warner, Erik C. Dunlop, Mohinudeen Faiz, David N. Dewhurst, Prue E.R. Warner, Marina Pervukhina
- Date Published: September 2019
Abstract:
The Cooper Basin of Australia is a world-class unconventional gas resource with estimated gas resources of 29.8 trillion cubic feet. However, the production of this gas is challenging as the significant gas resources are located in deep coal seams, w...
Faster play-based exploration, Petrel Sub-basin, Australia
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Laura Phillips*, Paul Massara, Kenneth McCormack
- Date Published: September 2019
Abstract:
The Paleozoic extensional Petrel Sub-basin within the Bonaparte Basin, Australia is relatively underexplored. Historical two-dimensional seismic data and 59 exploration wells provide a substantial residual sub-surface uncertainty. Woodside’s WA-522...
Making EM systems and bore logs speak the same language
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Aaron Davis*, Juerg Hauser
- Date Published: September 2019
Abstract:
Borehole induction logs, together with lithology records, are valuable for inferring geological and geophysical features in the subsurface. They offer insight into the relationship between geology and geophysics, and are an important source of inform...
Anisotropy analysis from 3D VSP surveys acquired at Otway site
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Sofya Popik, Andrej Bona, Roman Pevzner
- Date Published: September 2019
Abstract:
Knowledge of seismic anisotropy is highly important for Otway site as it can improve the quality of seismic imaging and thus provide better 4D signal/noise ratio. The presence of anisotropy has already been reported at the Otway site.
Compar...
AEM, Seismic and Power-lines: A hydrogeological case study in Peel, Western Australia
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Andrew Pethick, Brett Harris, Olga Barron
- Date Published: September 2019
Abstract:
Airborne time domain electromagnetic and high-resolution 2D seismic data were acquired in 2018 to map structures of hydrogeological significance in the Peel region; Western Australia. Interpretation of the airborne electromagnetic (AEM) survey was co...
Direct imaging of alteration with high-resolution hard-rock 3D seismic data at the Darlot Gold Mine
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: G. Hird*, W. Turner
- Date Published: September 2019
Abstract:
The Darlot gold mine is an Archean orogenic deposit located in the world-class gold and nickel terrain of the Yandal granite-greenstone belt within the Yilgarn Craton in Western Australia...
Frequency and current analysis of non-linear electrical effects in mineralised rocks
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Alan Oertel*, Robert White, Steve Collins, Keith Leslie, Ben Spyridis
- Date Published: September 2019
Abstract:
Available electrical geophysical methods are specialised in detecting conductive and chargeable targets, particularly sulphide deposits. A key challenge facing Induced Polarisation (IP) and Transient Electromagnetism (TEM) methods is that often a cha...
Known, absent and potential mineral deposit types in Australia
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: David I. Groves*, G. Neil Phillips
- Date Published: September 2019
Abstract:
Australia is in the top six global producers for a wide range of mineral commodities of abundant metals (Fe, Mn, Al, Ti), base metals (Ni, Cu, Zn, Pb), precious metals (Au, Ag), scarce metals (REE, Li, Sb), energy metals (U, Th) and industrial/ preci...
Hydrothermal dolomite distribution in the Emanuel Range as a constraint on timing of fault movement during mineralisation on the Lennard Shelf, Western Australia
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Heather Middleton*, Vicki Pedone, Dennis Arne
- Date Published: September 2019
Abstract:
At least four petrographically, geochemically, temporally and spatially distinct dolomites have been identified in mid-late Devonian carbonate banks and reefal buildups of the Emanuel Range on the south eastern Lennard Shelf. Detailed mapping of the ...
Sea level controls on buried geomorphology within the Swan River estuary during the Late Quaternary
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Giada Bufarale*, Mick O’Leary, Alexandra Stevens
- Date Published: September 2019
Abstract:
A high-resolution seismic survey was carried out across the metropolitan reach of the Swan River (Perth, Western Australia) to investigate its Late Quaternary sub-surficial geomorphology. Shallow imaging data, integrated with sediment cores, pre-exis...
Preliminary dating of martite goethite iron ore in the Hamersley Province (Western Australia)
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: E.R. Ramanaidou, M. Danišík, M.A. Wells
- Date Published: September 2019
Abstract:
In Western Australia, iron ore deposits are divided into three types, Channel Iron Deposits (CID), Detrital Iron Deposits (DID) and Bedded Iron Deposits (BID). The latter are hosted in the banded iron-formation (BIF) of the Marra Mamba and Brockman I...
AusAEM Year 1: Some aspects of quality control and calibration
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Ross C. Brodie, Yusen Ley-Cooper, Ray Lockwood, David Murray
- Date Published: September 2019
Abstract:
For the AusAEM Year 1 survey an inertial measurement unit (IMU) was installed for the first time on the TEMPEST receiver bird to measure its orientation and to augment GPS derived positioning of the receiver. This has given us the opportunity to deve...
Mapping the hydrostratigraphy and groundwater salinity of the Ord Bonaparte plains from AEM and NMR data
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Kok Piang Tan*, Neil Symington, Chris Harris-Pascal, Larysa Halas, Ken Lawrie
- Date Published: September 2019
Abstract:
This study is part of the groundwater investigations of the Ord Bonaparte plains in the East Kimberley region of Western Australia. A key project aim is to establish a spatial hydrostratigraphic framework to better understand the hydrogeology....
A 10 kN portable electromagnetic vibrator for near-surface studies
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Tim Dean*, Hoang Nguyen
- Date Published: September 2019
Abstract:
In a previous paper, we described how a small electromagnetic vibrator could be manufactured using commercially available components for less than US$2,000. The basis of the unit was a set of four low-frequency actuators designed for use in home-thea...
Jurassic igneous activity in the Exmouth Sub-basin: Insights from new 3D seismic
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: G. O’Halloran*, R. Benson, C. Dempsey
- Date Published: September 2019
Abstract:
A late Jurassic pulse of igneous activity occurred within the Exmouth Sub-basin, with several submarine volcanic extrusive centres evident, along with contemporaneous intrusive feeder systems that fed them. The extrusive volcanics have been mapped on...
Using machine learning to interpret 3D airborne electromagnetic inversions
- Publication Name: Australasian Exploration Geoscience Conference 2019
- Authors: Eldad Haber, Jen Fohring, Mike McMillan*, Justin Granek
- Date Published: September 2019
Abstract:
Although 3D airborne electromagnetic inversions have improved greatly in recent years, the presence of smooth boundaries has often been a strong criticism. This smoothness can easily be remedied by applying different types of regularization and const...
A double double-porosity model for wave propagation in patchysaturated tight sandstone with fabric heterogeneity
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Jing Ba, Mengqiu Guo, Wenhao Xu, Fengyuan Sun, Lin Zhang, Wei Cheng
- Date Published: February 2018
Abstract:
In natural reservoir rocks, fabric heterogeneity can further induce heterogeneous geometrical distribution of immiscible multi-phase fluid mixture, since fluid migration may be affected by lithological variation (mainly permeability) in geological ti...
Impact of artificially matured organic matter on the dielectric and elastic properties of compacted shales
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Matthieu Cauchefert, Matthew Josh, Lionel Esteban, Stephanie Vialle, Maxim Lebedev, Jeremie Dautriat, Joel Sarout, Bruce Maney
- Date Published: February 2018
Abstract:
Unconventional gas shale resources recently became a standard in the American oil and gas industry and are studied throughout the world. However Gas shales are still poorly characterised with respect to other reservoir rock types. The organic matter ...
STROMATOLITE CONSTRUCTION, BIOFACIES AND BIOMARKERS IN THE LOWER CAMBRIAN HAWKER GROUP, ARROWIE BASIN, SOUTH AUSTRALIA
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Bronwyn L. Teece, Simon C. George, Glenn A. Brock
- Date Published: February 2018
Abstract:
Stromatolites are laminated microbial deposits, normally composed of accretionary layers of cyanobacteria and other (often anoxic) bacteria which form on the sediment-water interface. Stromatolites represent one of the earliest records of life on Ear...
COULD THE MESOPROTEROZOIC KYALLA FORMATION EMERGE AS A VIABLE GAS CONDENSATE SOURCE ROCK RESERVOR PLAY IN THE BEETALOO SUB-BASIN?
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Carl Altmann, Elizabeth Baruch, David Close, Mohinudeen Faiz, Brenton Richards, Alexander Cote
- Date Published: February 2018
Abstract:
Reservoir and geomechanical analysis of Kyalla Formation core and wireline logs acquired at Beetaloo W-1 indicate the presence of two potential Source Rock Reservoir (SRR) intervals; the middle Kyalla SRR and the lower Kyalla SRR. The key properties ...
Integrating geophysical monitoring data into multiphase fluid flow reservoir simulation
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Trevor P. Irons, Brian J.O.L. McPhserson, Nathan Moodie, Rich Krahenbuhl, Yaoguo Li
- Date Published: February 2018
Abstract:
Simulation of multiphase flow systems are of critical importance in managing hydrological systems. Flow simulations are affected by a number of factors including structure and flow properties including porosity and permeability as well as the anisotr...
Quantitative Interpretation: Use of Seismic Inversion Data to Directly Estimate Hydrocarbon Reserves and Resources
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: James Shadlow, Adam Craig, David Christiansen, Robert Mitchell
- Date Published: February 2018
Abstract:
A quantitative interpretation workflow utilising AVO inversion based lithology prediction data was developed to directly assess reserves and resources for an LNG development project in the Carnarvon Basin. The study area is covered by modern MAZ PSDM...
FIBRE-OPTIC VSPS: BOREHOLE SEISMIC REVOLUTION IN AUSTRALIA
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Dr. Konstantin Galybin, Tsunehisa Kimura, Fargana Exton
- Date Published: February 2018
Abstract:
The borehole seismic industry is undergoing a quantum leap in the acquisition technology. The standard borehole seismic imaging tools such as accelerometers and geophones are now being replaced by the fibre-optic (FO) acquisition for basic surveys su...
3D VERTICAL SEISMIC PROFILING ACQUIRED USING FIBREOPTIC SENSING DAS – RESULTS FROM THE CO2CRC OTWAY PROJECT
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Julia Correa, Barry Freifeld, Michelle Robertson, Roman Pevzner, Andrej Bona, Dmitry Popik, Konstantin Tertyshnikov, Thomas Daley
- Date Published: February 2018
Abstract:
Distributed Acoustic Sensing (DAS) is an optical interferometric method for acquisition of acoustic and seismic signals. It uses laser pulses that travel along the length of a fibre-optic cable and backscatter as they encounter small inconsistencies ...
The influence of reverse-reactivated normal faults on porosity and permeability in sandstones: a case study at Castle Cove, Otway Basin
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Natalie Debenham, Natalie J. C. Farrell, Simon P. Holford, Rosalind C. King, David Healy
- Date Published: February 2018
Abstract:
An understanding of fault zone structure and transmissibility can have significant implications for reservoir appraisal and development within petroleum systems. Studies tend to focus on low porosity host rocks that have experienced simple tectonic h...
Reservoir Modelling, Structural History and Volumetrics of the Jerboa Area, Eyre Sub-Basin
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Jordan McGlew, Prof. Gregory Smith
- Date Published: February 2018
Abstract:
The Eyre Sub-basin is situated in the Bight Basin in the Southern Margin. It covers an area of approximately 8,000km2. It is one of several half-graben in the Bight Basin that formed during the initial rifting between Australia and Antarctica. Sedime...
Isotope Constraints on Intra-Basin Correlation and Depositional Settings of the Mid-Proterozoic Carbonates and Organic-Rich Shales in the Greater McArthur Basin, Northern Territory, Australia
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Juraj Farkas, Maxwell Bullen, Grant Cox, Alan Collins, William Giuliano, Sandra Menpes, Juergen Gusterhuber, Belinda Smith
- Date Published: February 2018
Abstract:
The Greater McArthur Basin in northern Australia forms the world’s oldest potential unconventional gas play. It comprises Paleo- to Mid-Proterozoic sedimentary successions (i.e., the McArthur and Limbunya Groups) dominated by carbonate rocks (i.e.,...
Solid substitution: theory versus experiment
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Yongyang Sun, Maxim Lebedev, Vassili Mikhaltsevitch, Stanislav Glubokovskikh, Stefan Iglauer, Boris Gurevich
- Date Published: February 2018
Abstract:
Gassmann fluid substitution is widely used in geophysical practice. In the last few years, the topic of fluid/solid substitution has emerged, where the substances filling the pore space can be solids, fluids, or visco-elastic materials, such as heavy...
Portable X-ray diffraction for unconventional and conventional petroleum exploration
- Publication Name: Australasian Exploration Geoscience Conference 2018
- Authors: Dane Burkett
- Date Published: February 2018
Abstract:
X-ray diffraction (XRD) is a well-established technique in the earth sciences as it can be used to identify and quantify minerals and is particularly useful for fine-grained sedimentary rocks. Due to the capital cost, environmental requirements and s...