ORCID Profile
0000-0003-0775-5169
Current Organisation
University of Queensland
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Petroleum and Reservoir Engineering | Geology | Resources Engineering and Extractive Metallurgy | Petroleum and Coal Geology | Simulation And Modelling | Environmental Science and Management | Information Systems | Chemical Engineering | Resources Engineering and Extractive Metallurgy not elsewhere classified | Geochronology And Isotope Geochemistry | Natural Resource Management | Environmental Management And Rehabilitation | Manufacturing processes and technologies (excl. textiles) | Geotectonics | Surfacewater Hydrology | Chemical and thermal processes in energy and combustion | Interorganisational Information Systems | Resource geoscience | Genomics | Chemical engineering | Geomechanics | Mathematical Sciences Not Elsewhere Classified | Environmental Engineering not elsewhere classified | Chemical Engineering not elsewhere classified | Petroleum And Reservoir Engineering | Geology Not Elsewhere Classified | Environmental Sciences Not Elsewhere Classified |
Oil and Gas Extraction | Oil and gas | Renewable Energy not elsewhere classified | Navy | Information processing services | Land and water management | Coal | Primary mining and extraction processes | Exploration | Expanding Knowledge in Engineering | Other
Publisher: Test accounts
Date: 2000
Publisher: Elsevier BV
Date: 02-1989
Publisher: Elsevier BV
Date: 02-2020
Publisher: Informa UK Limited
Date: 09-07-2020
Publisher: Elsevier BV
Date: 03-1997
Publisher: Elsevier BV
Date: 2016
Publisher: Elsevier BV
Date: 02-2021
Publisher: Wiley
Date: 27-02-2022
DOI: 10.1111/BRE.12660
Abstract: This paper presents the first comprehensive analysis of the present‐day stress from boreholes near an active continental rifting zone in the Moatize Basin, Mozambique. The state of present‐day stress in this area that is located ca. 100 km away from the Eastern African Rift System (EARS) is poorly understood, and most of our knowledge is from earthquake focal mechanisms that provide stress information from the deeper part of the lithosphere, and to a lesser extent from surface geological features in the Malawi region. Considering the limited reliability of earthquake‐derived stress orientations near plate boundaries, poor coverage of low to moderate magnitude earthquakes in eastern Africa, and ambiguity about the latest activity of geological structure other well‐established methods are required to shed light on the active tectonics of EARS. In this study, we analyse stress orientation using log data from 95 vertical boreholes in a mine site to investigate the neotectonic stress pattern of the region. Analysis of 17.9 km of televiewer logs resulted in interpretation of 1188 stress‐related borehole failures. The results indicate a mean regional trend of 045° ± 31° for the maximum horizontal stress ( S Hmax ). Our investigation reveals that the regional state of stress in the study area is controlled by superposition of stress sources that act at very different spatial scales. The consistency between our results and predictions by plate‐scale geodynamic models of stress orientations confirm that the regional pattern of stress in this area is mainly controlled by first ( km) and second (distances between 500 and 100 km) order stress sources (i.e., large tectonic forces and lateral density variations). However, high‐resolution data used in this study reveal that third (between 100 and 1 km) and fourth ( km) order stress sources from stiffness contrasts, rock fabric and geological structures have a great impact on the stress perturbations at smaller and local scales.
Publisher: Elsevier BV
Date: 05-2016
Publisher: Wiley
Date: 08-03-2018
DOI: 10.1002/LDR.2908
Publisher: Elsevier BV
Date: 03-2002
Publisher: Elsevier BV
Date: 05-1989
Publisher: Elsevier BV
Date: 11-2018
Publisher: Informa UK Limited
Date: 25-06-2017
Publisher: Elsevier BV
Date: 2000
Publisher: Elsevier BV
Date: 07-2018
Publisher: Springer International Publishing
Date: 2020
Publisher: Informa UK Limited
Date: 10-10-2014
Publisher: Test accounts
Date: 1993
Publisher: Informa UK Limited
Date: 15-05-2018
Publisher: Elsevier BV
Date: 2021
Publisher: Elsevier BV
Date: 11-2015
Publisher: Informa UK Limited
Date: 17-11-2015
Publisher: Elsevier BV
Date: 06-1989
Publisher: Informa UK Limited
Date: 03-04-2014
Publisher: Elsevier BV
Date: 10-2014
Publisher: SAGE Publications
Date: 09-1988
Abstract: Woody peats from Indonesia and Malaysia were examined by FT-IR spectroscopy to observe the variation in degree of humification between peat types and among botanical components and matrix material within a peat type. Results of the FT-IR analysis showed significant changes occurring in the 1600 and 1000 cm −1 regions which are interpreted to represent lignin and lignocellulose, respectively. These components were considered to describe variations in degree of humification. Between peat types the intensity of the lignocellulose region decreased accordingly between fibric, hemic, and sapric s les. Within a s le, variations in the relative amount of lignocellulose in the three different size fractions of a s le were observed that could generally, but not always, be related to peat type. In all peat types the coarse material still contained some lignocellulosic component, whereas the finer fractions contained variably less to no lignocellulose. The lignin-dominated composition of the finer matrix material suggests that these peats are derived mainly from trees and woody vines with little input from herbaceous, less decay-resistant (cellulose-dominant) plant material.
Publisher: Elsevier BV
Date: 12-2013
Publisher: Elsevier BV
Date: 1997
Publisher: Elsevier BV
Date: 12-2017
Publisher: Elsevier BV
Date: 12-2013
Publisher: Cambridge University Press (CUP)
Date: 14-01-2019
DOI: 10.1017/S0016756817001078
Abstract: Eastern Australia was affected by late Cenozoic intraplate deformation in response to far-field stress transmitted from the plate boundaries, but little is known about the intensity and pattern of this deformation. We used recently surveyed two-dimensional seismic reflection lines and aeromagnetic data, and data from the recently released Australian Stress Map, to investigate the structure of the Nagoorin Basin in eastern Queensland. The western margin of the Nagoorin beds was displaced by the Boynedale Fault, which is a NNW-striking SW-dipping oblique strike-slip reverse fault with a vertical throw of c. 900 m and c. 16 km sinistral displacement. A significant part of this large sinistral displacement is interpreted to have occurred prior to late Cenozoic time. Several low-angle ( °) thin-skinned thrusts with a flat-r geometry also displaced the Nagoorin beds, which are interpreted to have developed along detachment surfaces in oil shales and claystone. The Boynedale Fault is a segment within longer NNW-striking faults that include the North Pine and West Ipswich fault systems in eastern Queensland. These NNW-striking faults are potentially active, and may accommodate neotectonic thrust movement in response to the present-day NE–SW orientation of S Hmax . Results of this study, in conjunction with previous information on sedimentary basins in eastern Australia, indicate that Cenozoic contractional deformation is stronger at the continental margins, possibly due to the presence of pre-existing rift-related structures.
Publisher: Informa UK Limited
Date: 06-2008
DOI: 10.1071/EG08011
Publisher: American Geophysical Union (AGU)
Date: 2017
DOI: 10.1002/2016TC004297
Publisher: Informa UK Limited
Date: 07-03-2017
Publisher: Elsevier BV
Date: 12-2019
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 06-2016
Publisher: Elsevier BV
Date: 09-2013
Publisher: Informa UK Limited
Date: 02-10-2016
Publisher: Test accounts
Date: 1988
Publisher: Elsevier BV
Date: 09-2014
Publisher: Elsevier BV
Date: 11-2019
Publisher: American Chemical Society (ACS)
Date: 21-01-2009
DOI: 10.1021/LA801925K
Abstract: We have applied X-ray and neutron small-angle scattering techniques (SAXS, SANS, and USANS) to study the interaction between fluids and porous media in the particular case of subcritical CO2 sorption in coal. These techniques are demonstrated to give unique, pore-size-specific insights into the kinetics of CO2 sorption in a wide range of coal pores (nano to meso) and to provide data that may be used to determine the density of the sorbed CO2. We observed densification of the adsorbed CO2 by a factor up to five compared to the free fluid at the same (p, T) conditions. Our results indicate that details of CO2 sorption into coal pores differ greatly between different coals and depend on the amount of mineral matter dispersed in the coal matrix: a purely organic matrix absorbs more CO2 per unit volume than one containing mineral matter, but mineral matter markedly accelerates the sorption kinetics. Small pores are filled preferentially by the invading CO2 fluid and the apparent diffusion coefficients have been estimated to vary in the range from 5x10(-7) cm2/min to more than 10(-4) cm2/min, depending on the CO2 pressure and location on the s le.
Publisher: Elsevier BV
Date: 04-2015
Publisher: Elsevier BV
Date: 05-2020
Publisher: Elsevier BV
Date: 09-2003
Publisher: Elsevier BV
Date: 08-2009
Publisher: Elsevier BV
Date: 11-2012
Publisher: Elsevier BV
Date: 12-1990
Publisher: Elsevier BV
Date: 2015
Publisher: Elsevier BV
Date: 2015
Publisher: Springer Science and Business Media LLC
Date: 12-11-2019
DOI: 10.1038/S41598-019-52863-6
Abstract: The end of the Late Palaeozoic Ice Age (LPIA) ushered in a period of significant change in Earth’s carbon cycle, demonstrated by the widespread occurrence of coals worldwide. In this study, we present stratigraphically constrained organic stable carbon isotope (δ 13 C org ) data for Early Permian coals (312 vitrain s les) from the Moatize Basin, Mozambique, which record the transition from global icehouse to greenhouse conditions. These coals exhibit a three-stage evolution in atmospheric δ 13 C from the Artinskian to the Kungurian. Early Kungurian coals effectively record the presence of the short-lived Kungurian Carbon Isotopic Excursion (KCIE), associated with the proposed rapid release of methane clathrates during deglaciation at the terminus of the Late Palaeozoic Ice Age (LPIA), with no observed disruption to peat-forming and terrestrial plant communities. δ 13 C org variations in coals from the Moatize Basin are cyclic in nature on the order of 10 3 –10 5 years and reflect changes in δ 13 C org of ~±1‰ during periods of stable peat accumulation, supporting observations from Palaeozoic coals elsewhere. These cyclic variations express palaeoenvironmental factors constraining peat growth and deposition, associated with changes in base level. This study also demonstrates the effectiveness of vitrain in coal as a geochemical tool for recording global atmospheric change during the Late Palaeozoic.
Publisher: Informa UK Limited
Date: 11-02-2018
Publisher: Society for Sedimentary Geology
Date: 1992
Publisher: Elsevier BV
Date: 09-1986
Publisher: Elsevier BV
Date: 12-2018
Publisher: Wiley
Date: 12-2017
DOI: 10.1111/PHOR.12219
Publisher: World Scientific Pub Co Pte Lt
Date: 09-1999
Publisher: Elsevier BV
Date: 04-2016
Publisher: Informa UK Limited
Date: 04-07-2015
Publisher: Elsevier BV
Date: 04-2007
Publisher: Elsevier BV
Date: 08-2020
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/AJ15104
Abstract: More than 6,000 boreholes were compiled to develop a consistent regional scale stratigraphic framework for the Permian Rangal, Baralaba and Bandana coal measures (CMs) within the Bowen Basin. Coal beds and tuff horizons were used as stratigraphic markers, supported by chemostratigraphy and age dating. Results corroborate the general sub isions of these different coal measures relative to basin location, but increase resolution on migrating depocentres in response to foreland loading and subsidence on coal thickness and splitting patterns. In the north, the Rangal CMs comprise two main seams, correlated as Leichhardt and Vermont. The Yarrabee Tuff is consistently present and splits the Vermont seam. The main Leichhardt seam exhibits relatively simple offset stacking relationships with the underlying Vermont and overlying Phillips seams. In the southwest, the Bandana CMs comprise two to three significant seams—the Aries-Castor, Pollux (Leichhardt equivalent) and Orion—along with the Pisces containing the Yarrabee Tuff. Seams exhibit complex Z splitting and vertical interburden stacking. Locally super-thick seams (crabs) form from convergence of thinner split seams in areas of relative stability over basement highs. In the Taroom Trough, the Baralaba CMs show the greatest response to loading, as seams thin and split along the eastern margin. The variability in the splitting patterns, coupled with the coal measures total thickness, corroborate the extension of the final basin depocentre northward, which was not preserved.
Publisher: Elsevier BV
Date: 08-2015
Publisher: Elsevier BV
Date: 06-2003
Publisher: Elsevier BV
Date: 1989
Publisher: Informa UK Limited
Date: 02-2013
Publisher: Elsevier BV
Date: 09-2017
Publisher: Informa UK Limited
Date: 29-01-2013
Publisher: Elsevier BV
Date: 06-2015
Publisher: Informa UK Limited
Date: 04-07-2015
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 12-1990
Publisher: Informa UK Limited
Date: 30-04-2017
Publisher: Elsevier BV
Date: 02-2014
Publisher: Elsevier BV
Date: 2015
Publisher: Informa UK Limited
Date: 30-01-2019
Publisher: Elsevier BV
Date: 02-1994
Publisher: Elsevier BV
Date: 06-2017
Publisher: Springer Science and Business Media LLC
Date: 22-12-2017
Publisher: Informa UK Limited
Date: 11-12-2017
Publisher: Informa UK Limited
Date: 26-04-2018
Publisher: Elsevier BV
Date: 10-2020
Publisher: Springer Science and Business Media LLC
Date: 16-01-2022
Publisher: Elsevier BV
Date: 06-2010
Publisher: Elsevier BV
Date: 2009
Publisher: Informa UK Limited
Date: 16-03-2015
Publisher: Elsevier BV
Date: 07-1994
Publisher: Elsevier BV
Date: 05-2012
Publisher: Elsevier BV
Date: 12-2017
Publisher: Elsevier BV
Date: 06-2020
Publisher: Elsevier BV
Date: 08-2018
Publisher: Elsevier BV
Date: 05-1993
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 2011
Publisher: Elsevier BV
Date: 06-2010
Publisher: Springer International Publishing
Date: 2020
Publisher: Elsevier BV
Date: 02-1991
Publisher: Elsevier BV
Date: 2011
Publisher: Elsevier BV
Date: 04-1991
Publisher: Informa UK Limited
Date: 23-10-2023
Publisher: Elsevier BV
Date: 11-2013
Publisher: Elsevier
Date: 2008
Publisher: Springer International Publishing
Date: 2020
Publisher: Springer International Publishing
Date: 2020
Publisher: Springer International Publishing
Date: 2020
Publisher: Springer International Publishing
Date: 2020
Start Date: 12-2021
End Date: 12-2024
Amount: $310,781.00
Funder: Australian Research Council
View Funded ActivityStart Date: 06-2006
End Date: 06-2009
Amount: $400,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 09-2011
End Date: 09-2014
Amount: $330,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 04-2006
End Date: 06-2010
Amount: $350,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2023
End Date: 06-2026
Amount: $435,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 06-2018
End Date: 06-2021
Amount: $281,658.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2003
End Date: 12-2004
Amount: $10,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 01-2004
End Date: 06-2004
Amount: $30,000.00
Funder: Australian Research Council
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