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Probabilistic modelling of groundwater salinity using borehole and airborne electromagnetics (AEM) data
- Publication Name: AEGC 2021
- Authors: Neil Symington, Anandaroop Ray, Chris Harris-Pascal, Kok Piang Tan, Richard Taylor, Yusen Ley-Cooper, Ross C Brodie
- Date Published: September 2021
Abstract:
Groundwater is a critical resource for supporting human consumption, stock water, agricultural use, and mineral or energy extraction as well as the environment. However, the quality of groundwater varies enormously from potable to hyper-saline, parti...
Investigation of old pollution site along the Swan River, Perth, Western Australia using Loupe TEM system
- Publication Name: AEGC 2021
- Authors: Michael A. Hatch, Greg Street, Gavan McGrath, Aaron Davis, Andrew Duncan
- Date Published: September 2021
Abstract:
In this study, data were collected using a new transient-electromagnetic system over an area in Perth, Western Australia, along the Swan River. The site was polluted by industry in the 1960’s and 1970’s, and then remediated by agencies working fo...
Closing the gap between ground and airborne IP data modelling
- Publication Name: AEGC 2021
- Authors: A. Viezzoli, G. Fiandaca
- Date Published: September 2021
Abstract:
Modelling of Induced Polarization in AEM data (AIP) has recently been used more often in exploration. Which demands for more research to address the fundamental question “how does AIP compare to ground IP?”. Beside some of the well-known differen...
New Age Dating of Evaporites in Canning Basin, WA, Australia. A Case Study based on samples from the Frome Rocks Salt Diapir
- Publication Name: AEGC 2021
- Authors: F. McNee, J. Gorter, F. Glass
- Date Published: September 2021
Abstract:
The age of evaporitic units in the Kidson Sub-basin of the Canning Basin have been assigned to be of Late Ordovician to Early Silurian age through the dating of the sedimentary sequences within the Mallowa Salt.
This paper presents an alternative m...
Expanding the reserve base of operating mines: Insights from an airborne MobileMT survey in the Omsukchan depression, Russian Far East
- Publication Name: AEGC 2021
- Authors: Petr Kordi, Alexander Prikhodko, Andrei Bagrianski, Sergei Trushin
- Date Published: September 2021
Abstract:
In the frame of expanding the reserve base for the Omsukchan mining district, an airborne electromagnetic survey was carried out over and around the Dukat silver giant. The initially developed exploration concept was based on weakly investigated deep...
High density seismic finally accessible to all industries
- Publication Name: AEGC 2021
- Authors: Amine Ourabah
- Date Published: September 2021
Abstract:
High density seismic has been synonym of high-quality subsurface images and attributes for more than 2 decades now, and although firstly made available by innovative source technologies, the receiver side was lagging behind with bulky, heavy cables a...
Nonlinear, 2D uncertainty estimation in Magnetotelluric inversion using trans-dimensional Gaussian processes
- Publication Name: AEGC 2021
- Authors: Daniel Blatter, Anandaroop Ray, Kerry Key
- Date Published: September 2021
Abstract:
Bayesian inversion of Magnetotelluric (MT) data produces crucial uncertainty information on inferred subsurface resistivity. Due to their high computational cost, however, Bayesian inverse methods have largely been restricted to 1D resistivity models...
The resistivity structure of the Gidyea Suture and its relationship to the Carpentaria Conductivity Anomaly
- Publication Name: AEGC 2021
- Authors: Janelle Simpson, Dominic Brown, Karen Connors
- Date Published: September 2021
Abstract:
The Gidyea Suture is a structure that lies on the eastern margin of the Mount Isa Province. It was first recognised in deep crustal seismic, and subsequent authors have used magnetotelluric (MT) data to further support its existence. It is considered...
Mapping coal seam roof and floor by using in-seam borehole radar: Results from numerical modelling
- Publication Name: AEGC 2021
- Authors: Binzhong Zhou, Jianjian Huo, Iain Mason, Matthew van de Werken
- Date Published: September 2021
Abstract:
Longwall automation depends on the development of automatic coal seam (horizon) tracking and lateral guidance systems to keep mining the target coal seam while steering to the desired target. While inertial sensing has provided some success for later...
Towards a 3D model of the South-Nicholson Basin region, Northern Australia, for mineral, energy and groundwater assessment
- Publication Name: AEGC 2021
- Authors: Nadege Rollet, Michael Doublier, Chris Southby, et al.
- Date Published: September 2021
Abstract:
The Exploring for the Future Program facilitated the acquisition of major geoscience datasets in northern Australia, where rocks are mostly under cover and the basin evolution, mineral, energy and groundwater resource potential are, in places, poorly...
CRC-P-57322 High-resolution Real-time Airborne Gravimetry
- Publication Name: AEGC 2021
- Authors: Andrew Gabell, Timothy Crain, Glenn D Hines, et al.
- Date Published: September 2021
Abstract:
Airborne gravimetry relies on removing inertial aircraft accelerations from total accelerations measured by an onboard gravimeter. NASA developed a Navigation Doppler Lidar (“NDL”) for the US Space Program. The NDL measures velocities at the 1 mm...
Next-generation velocity model of the Australian crust from synchronous and asynchronous ambient noise imaging
- Publication Name: AEGC 2021
- Authors: Yunfeng Chen, Erdinc Saygin
- Date Published: September 2021
Abstract:
The proliferation of seismic networks in Australia has laid the groundwork for improved probing of the continental crust. In this study, we develop a new crustal model of the Australian continent using a large dataset that consists of nearly 30 years...
Practical aspects of wavefield decomposition for permanent seismic rotatory sources
- Publication Name: AEGC 2021
- Authors: Roman Isaenkov, Sinem Yavuz, Roman Pevzner, Konstantin Tertyshnikov, Julia Correa, Barry Freifeld
- Date Published: September 2021
Abstract:
Continuous reservoir surveillance requires permanent seismic sources. One such source is a seismic orbital vibrator (SOV). An SOV excites a circularly polarised seismic signal by the rotation of an eccentric mass alternately clockwise and counter-clo...
Automated facies classification in borehole log data
- Publication Name: AEGC 2021
- Authors: Roman Beloborodov, James Gunning, et al.
- Date Published: September 2021
Abstract:
Seismic facies inversion relies on accurate facies-specific elastic parameter models determined from borehole log data. Typically, velocity depth trends and corresponding standard errors are manually determined for each of the facies by using cross-p...
Impacts of Uncertainty in Minimum Horizontal Stress Determination on Wellbore Stability
- Publication Name: AEGC 2021
- Authors: Matthew Musolino, Simon Holford, Rosalind King
- Date Published: September 2021
Abstract:
The purpose of this study is to highlight sources of uncertainty in the determination of minimum horizontal stress estimates from leak-off tests (LOTs) and their effect on wellbore stability modelling. To achieve this, we use petroleum datasets from ...
Petroleum Source Rocks, Generation and Primary Migration: insights using new direct nano-scale Tof-Sims SEM analysis and Re-Os radiometric dating
- Publication Name: AEGC 2021
- Authors: Greg Smith, William Rickard, Zhen Li, Svetlana Tessalina
- Date Published: September 2021
Abstract:
Exactly how maturation, generation and primary migration in and from source rocks works at the nano-scale remains largely a mystery. The theories and concepts rely mostly on destructive analytical techniques that by their nature do not allow direct o...
Constraining regional-scale groundwater transport predictions using multiple geophysical techniques
- Publication Name: AEGC 2021
- Authors: Chris Li, Rebecca Doble, Michael Hatch, Graham Heinson, Ben Kay
- Date Published: September 2021
Abstract:
Due to often spatially discontinuous and sparse datasets from traditional geohydrological techniques, it is becoming more common to incorporate geophysical data in groundwater models. Not only are the geophysical data sets more continuous, but they c...
Laboratory study of temperature variation effects on Distributed Acoustic Sensing measurements
- Publication Name: AEGC 2021
- Authors: Sidenko E., Pevzner R., Tertyshnikov K. and Lebedev M.
- Date Published: September 2021
Abstract:
Fibre-Optic sensing is being actively used nowadays in various exploration and monitoring applications. Distributed Temperature Sensing (DTS) is used for measurements and monitoring of the temperature. Distributed Acoustic Sensing (DAS) is used to re...
Controls on organic matter accumulation in the Mesoproterozoic: Insights from the stratigraphic modelling of the Velkerri Formation of the Beetaloo Basin (Northern Territory, Australia)
- Publication Name: AEGC 2021
- Authors: Vincent Crombez, Mohinudeen Faiz, Claudio Delle Piane, Marcus Kunzmann
- Date Published: September 2021
Abstract:
The ability to understand and predict the distribution of the primary organic content in a basin is key when exploring for unconventional hydrocarbons. Many pathways lead to the formation of organic-rich rocks through combinations of primary producti...
MobileMT for porphyry exploration – model studies and field examples
- Publication Name: AEGC 2021
- Authors: Alexander Prikhodko, Andrei Bagrianski
- Date Published: September 2021
Abstract:
Resistivity methods are an important part of the arsenal of geophysical techniques for the exploration of porphyry-style mineralization. One of the geophysical techniques that could be used to detect the porphyry targets, or its attributes is MobileM...
H2- From Scientific Research to Commercialised Energy
- Publication Name: AEGC 2021
- Authors: Max Williamson
- Date Published: September 2021
Abstract:
H2 has been and is a tantalising opportunity against which companies and Governments around the world are throwing serious research dollars and resources. Our Federal Government has followed with its National Hydrogen Strategy, plus current start-up ...
Ground Penetrating Radar Investigation as Part of a Multidisciplinary Archaeological Project, The Plain of Jars, Lao PDR.
- Publication Name: AEGC 2021
- Authors: Jamie Speer, Dr. Dougald O’Reilly, Dr. Louise Shewan
- Date Published: September 2021
Abstract:
The Ground Penetrating Radar (GPR) investigation was undertaken within the multidisciplinary team undertaking the “Plain of Jars Archaeological Research Project”, a joint Lao-Australian project funded by the Australian Research Council. The inter...
Continental shelf marine MT feasibility study in the Spencer Gulf, South Australia
- Publication Name: AEGC 2021
- Authors: Graham Heinson, Kate Robertson, Goran Boren, Steven Constable, Jacob Perez, Stephan Thiel, Jingming Duan, Darren Kyi
- Date Published: September 2021
Abstract:
Data from 12 new marine magnetotelluric (MT) stations have been acquired on the ocean-bottom of the Spencer Gulf, extending the land MT profile that crosses the Eyre Peninsula. The primary goal of the project was to determine the feasibility of colle...
Case Studies using Loupe – Mapping Geology in Near-Surface
- Publication Name: AEGC 2021
- Authors: Gregory Street, Andrew Duncan
- Date Published: September 2021
Abstract:
Surveys were conducted over five prospects in the southwest of Western Australia with aims of mapping, geology, sulphides, graphite and clay. The high resolution of the Loupe system lends itself to a role similar to ground magnetic data in mapping ge...
Overburden measurement for coal mine management with 3D high resolution compressional and shear velocity seismic inversion
- Publication Name: AEGC 2021
- Authors: Claudio Strobbia, Martin Bayly, Denis Sweeney, et al.
- Date Published: September 2021
Abstract:
High resolution surface seismic surveys can provide useful images of coal bed reflections to depths as shallow as 50 to 100 metres. There is also a need, to gain information of the overburden properties above these depths. This information gap can be...
Attenuation of ice-sheet reverberations in teleseismic P-wave receiver functions
- Publication Name: AEGC 2021
- Authors: Dale Harpley, Steve Hearn, Shaun Strong
- Date Published: September 2021
Abstract:
Teleseismic P-wave receiver functions (PRFs) in icecovered regions are contaminated by reverberations within the ice-sheet. The crustal conversion events which are commonly used for identifying lithospheric structure are concealed by these ice reverb...
Lithospheric-scale magnetotellurics over the Eastern Goldfields Superterrane, Yilgarn Craton
- Publication Name: AEGC 2021
- Authors: Kate Selway, Mike Dentith, Klaus Gessner
- Date Published: September 2021
Abstract:
Long-period magnetotelluric (MT) data were collected in the Yilgarn Craton, Western Australia, in a ~200 x 250 km grid that crosses parts of the heavily mineralised Eastern Goldfields Superterrane and parts of the adjacent, less mineralised Youanmi T...
Estimate elastic moduli of arenites from micro-tomographic images with digital rock physics
- Publication Name: AEGC 2021
- Authors: Jiabin Liang, Boris Gurevich, Maxim Lebedev, Stephanie Vialle, Alexey Yurikov, Stanislav Glubokovskikh
- Date Published: September 2021
Abstract:
Numerical computation from high resolution 3D microtomographic (micro-CT) images of rocks (known as digital rock physics) has the potential to predict elastic properties more accurately. However, successful examples are limited to samples with simple...
New mineral system vectors for revitalised copper-gold discovery in the Gawler Craton
- Publication Name: AEGC 2021
- Authors: John Anderson
- Date Published: September 2021
Abstract:
Combination of a new strato-tectonic model for the Olympic Metallogenic Event (OME) and a zircon-based geochemical tool offers a significant step-change for ore target vectoring for a spectrum of IOCG and coeval copper-gold deposit styles in the Gawl...
Seismic network modelling and design in an interactive web-based environment
- Publication Name: AEGC 2021
- Authors: Pavel Golodoniuc, Januka Attanayake, Abraham Jones, Samuel Bradley
- Date Published: September 2021
Abstract:
To detect and locate earthquakes effectively and accurately, seismologists must design and install a network of seismometers that can capture small seismic signals originating in the sub-surface. A major challenge when deploying an array of seismomet...