New insights into the offshore Canning Basin using a seamless onshore/offshore stratigraphic model

Yule, Christopher; Daniell, James

doi:10.1080/22020586.2019.12073038

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Well logs contain lithological data that is crucial for seismic stratigraphic mapping, but some wells also have geophysical logs such as gamma, density, resistivity and sonic logs, which can assist in differentiating rock types. The wells and seismic lines were analyzed in 3D space using the OpendTect software package to map the extent of the buried mafic igneous units across the study area (Yule & Daniell, 2018, 2019). Mafic igneous units are typically expressed as high‐amplitude seismic reflections relative to the surrounding sedimentary rocks and appear as three types: flows, dykes and sills (Magee & Jackson, 2020).…”

Section: Methodsmentioning

confidence: 99%

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

Yule

Spandler

2022

Geochem Geophys Geosyst

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The emplacement or eruption of large volumes of mafic magma over relatively short timescales is well recognised as important geological phenomena that has influenced mass extinctions, continental breakup, and metalliferous ore formation across Earth's history (Ernst, 2014). The most voluminous of these events, classified as Large Igneous Provinces (LIPs), are characterized by extensive flood basalts associated with dolerite dyke and sill networks that are genetically related to a mantle plume, and/or continental break-up geodynamics (Ernst et al., 2005). To classify a LIP, a mafic igneous suite must cover an area of at least 100,000 km 2 , have a minimum volume of 100,000 km 3 and be emplaced within a 50-million-year time period (Coffin & Eldholm, 1994;Ernst & Buchan, 2001;Ernst et al., 2005). An episode of mafic magmatism that meets some, but not all, of these requirements can be classified as a Mafic Magmatic Province (MMP) rather than a LIP, given the same surface area and volume requirements are met (Ernst, 2014).

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Section: Methodsmentioning

confidence: 99%

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

Yule

Spandler

2022

Geochem Geophys Geosyst

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“…The Kidson Sub-basin formed in the Early Ordovician (~ 480 Ma) and has since undergone three major extensional phases, separated by three major inversion episodes (Hashimoto et al, 2018;Kennard et al, 1994a;Shaw et al, 1994). The inversion episodes are associated with extensive exhumation and have impacted fluid migration, salt dissolution, brine migration and mineralisation in the Canning Basin overall (Hashimoto et al, 2018;Yule and Daniell, 2019). Exhumation studies, therefore, have great implications on understanding the evolution of the Kidson Sub-basin, as well as its hydrocarbon and mineral potential.…”

Section: Introductionmentioning

confidence: 99%

The Magnitude of Exhumation in the Kidson Sub-Basin, Western Australia, Usingthermal and Compaction Techniques

Marfo¹,

Palu

Makuluni

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

The Magnitude of Exhumation in the Kidson Sub-basin, Western Australia, using Thermal and Compaction Techniques

Marfo

Makuluni

Clark

2022

Preprint

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The Kidson Sub-basin which forms the largest tectonic province of the Canning Basin has a high potential for Uranium, sediment-hosted base metals, conventional and unconventional hydrocarbons. The basin has undergone major tectonic events since its formation in the Early Ordovician involving several inversion episodes resulting in extensive exhumation in the basin. The magnitude, timing and distribution of exhumation associated with these inversion episodes are poorly studied due to sparse data in the area. In this study, we integrate recently acquired seismic data with existing well data, combining for the first time thermal and compaction techniques to constrain the magnitude and distribution of exhumation associated with these major inversion episodes. Our results indicate that 300 to 500 m of exhumation occurred during the middle Silurian to Early Devonian inversion episode or Prices Creek Compression, 500 to 750 m of exhumation occurred during the middle Carboniferous inversion episode or Meda Transpression and 800 to 1200 m of exhumation occurred during the Late Triassic to Early Jurassic inversion episode or Fitzroy Transpression. Data from apatite fission-track analysis put temporal constraints on the timing of this exhumation and indicate that cooling from maximum post-depositional temperatures within the Kidson Sub-basin occurred in the Late Triassic to Early Jurassic. This imply that a paleothermal maximum was reached within the Kidson Sub-basin during the Early Triassic extension episode, prior to the Fitzroy Transpression. During this period, we also detect that the sediments were affected by a slight increase in basal heat flow associated with the rifting event. Results illustrate that during each of these inversion events, higher amounts of exhumation affected the Kidson Sub-basin than previously thought. The results from this study also demonstrate two dominant factors controlling the spatial and temporal distribution of exhumation in the Kidson Sub-basin. We suggest that the spatial distribution of exhumation in the sub-basin during each inversion episode was dominantly controlled by variation in rheology (strength) of inherited basement units, whilst the temporal distribution of exhumation was dominantly controlled by variation in the magnitude of compressive stress.

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New insights into the offshore Canning Basin using a seamless onshore/offshore stratigraphic model

Cited by 5 publications

References 10 publications

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

The Magnitude of Exhumation in the Kidson Sub-Basin, Western Australia, Usingthermal and Compaction Techniques

The Magnitude of Exhumation in the Kidson Sub-basin, Western Australia, using Thermal and Compaction Techniques

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