Paleo-environmental reconstruction of Lopingian (upper Permian) sediments in the Galilee Basin, Queensland, Australia

Phillips, L. J.; Edwards, Sally; Bianchi, Valeria; Esterle, Joan

doi:10.1080/08120099.2017.1338618

Cited by 11 publications

(12 citation statements)

References 29 publications

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“…It is currently unclear at this stage if this subdivision of the Betts Creek beds can be extended further west into the basin or in relation to recent investigations (Phillips et al, 2017b) how this subdivision correlates with mapped surface exposures of the Betts Creek beds in the north of the Galilee Basin.…”

Section: Permian and Carboniferous Stratigraphic Successionsmentioning

confidence: 99%

Reinterpretation of Wire-line Log Data in the Eastern Galilee Basin, Queensland: Stratigraphical and Hydrogeological Implications.

Hansen

Uroda

2018

ASEG Extended Abstracts

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SUMMARYThe Bureau of Meteorology (BoM) to meet the role of compiling and delivering Australia's water information under the conditions set out in the Federal Water Act 2007 developed the Australian Water Resource Information System (AWRIS) and the National Groundwater Information System (NGIS) to support AWRIS. Functionality of the NGIS relied on compiling state and territory groundwater databases. Completeness of the data contained in these databases was critical in facilitating data migration to the NGIS and groundwater bores in the Galilee Basin were identified as a priority target for addressing data gaps.Published wire-line log interpretation information was used to create and map structure surfaces for the Galilee Basin. These structure surfaces were used to create a 3D stratigraphic framework to visualise the basin architecture. Assessment of the 3D stratigraphic framework, structure surfaces and wire-line log interpretations identified numerous inconsistencies with the established basin stratigraphy. This is partially attributed to the large number of interpretation sources, exploration relevance and an incomplete understanding of facies variability. Additional areas of concern that were also identified included inconsistent surface geology mapping and a poor understanding of regional lineaments.To address these inconsistencies systematic reinterpretation of the published wire-line log data was undertaken to validate or reassign inconsistent existing stratigraphic interpretations in the Galilee Basin. The highest percentage of inconsistent interpretations was concentrated in the eastern Galilee Basin and this area was chosen as the priority focus area. Reinterpretation relied on utilising a suite of wire-line log data from multiple data sources that included stratigraphic drill holes, coal seam gas (CSG), oil and gas exploration drill holes and groundwater bores. The availability of gamma wire-line log data was the minimum data requirement.Reinterpretation of the wireline log data has resulted in producing revised stratigraphic formation data for the tops of the Moolayember Formation/Base Eromanga Basin, Rewan Group, Dunda beds, Clematis Group, Bandanna Formation/Betts Creek beds, Colinlea Sandstone and Joe Joe Group. This revision has shifted some of these formation tops vertically by up to 300m in some instances leading to significant modification of some structure contour surfaces and the lateral extents of some formations. The Clematis Group, Dunda beds and Rewan Group have undergone the greatest level of modification.Uncertainty over the internal architecture of the Galilee Basin has significant implications for understanding the hydrogeology of aquifer systems and springs in the basin. Reinterpretation by a single operator has assisted in removing some of this uncertainty and provided a consistent dataset of interpretations.

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Section: Permian and Carboniferous Stratigraphic Successionsmentioning

confidence: 99%

Reinterpretation of Wire-line Log Data in the Eastern Galilee Basin, Queensland: Stratigraphical and Hydrogeological Implications.

Hansen

Uroda

2018

ASEG Extended Abstracts

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“…Van Heeswijck ( 2010) concluded that all units within the Lopingian and Early Triassic stratigraphy of the Galilee Basin were deposited during an extended period of thermal subsidence of the Galilee Basin after the mid-Permian hiatus. However, the evidence of variable palaeo-environments recorded by each lithostratigraphic unit in the Galilee Basin (Phillips et al, 2017a) during this time period is suggestive of a much more complex tectonic setting.…”

Section: Lopingian Stratigraphymentioning

confidence: 81%

“…The 'Fair Hill Formation equivalent' conformably overlies the 'Colinlea Sandstone equivalent', and it consists of carbonaceous mudstone and siltstone, interbedded with coal and volcanic ash layers. The main coal seam within the 'Fair Hill Formation equivalent' is the C seam (Phillips et al, 2017a(Phillips et al, , 2017c.…”

Section: Lopingian Stratigraphymentioning

confidence: 99%

“…The Black Alley Shale, which overlies the 'Fair Hill Formation equivalent', was deposited during a period of marine transgression in both the Bowen and Galilee basins . It is a predominately structureless unit that is interbedded with volcanic ash layers (Phillips et al, 2017a), one of which produced a CA-IDTIMS age of 254.08 ± 0.06 Ma (Phillips et al, In Press). A period of regression followed deposition of the Black Alley Shale, and, during this regression, the 'Burngrove Formation equivalent' was deposited as part of a deltaic system Phillips et al, 2017a).…”

Section: Lopingian Stratigraphymentioning

confidence: 99%

“…It is a predominately structureless unit that is interbedded with volcanic ash layers (Phillips et al, 2017a), one of which produced a CA-IDTIMS age of 254.08 ± 0.06 Ma (Phillips et al, In Press). A period of regression followed deposition of the Black Alley Shale, and, during this regression, the 'Burngrove Formation equivalent' was deposited as part of a deltaic system Phillips et al, 2017a). Capping this sequence is the B coal seam , which includes ash horizons, the uppermost of which has an age of 252.81 ± 0.07 Ma.…”

Section: Lopingian Stratigraphymentioning

confidence: 99%

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Stratigraphic architecture of Lopingian (upper Permian) strata in the Galilee Basin, NE Australia

Phillips¹

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This study reviewed the stratigraphic framework of the Koburra Trough, Galilee Basin and proposed a modified stratigraphy of the Betts Creek beds based on regional correlation of coal and interburden facies character observed in wireline log signatures, core and chip descriptions. The new stratigraphy was tested through radiogenic isotope dating of tuffs and palynology. This new framework provides the foundation for a regional palaeo-environmental model, coupled with an investigation of sediment provenance through U-Pb analysis of detrital zircons and their implications for the tectonic setting of the Galilee Basin. Through the regional correlations of 76 public domain and 1205 proprietary geophysical wireline logs complemented by core descriptions, a series of regional coal seam correlations were developed. Using the C seam, with a distinctive tuffaceous character, as a marker horizon, the Lopingian coal seam architecture was established. The C seam is overlain by the B and A seams that merge to the north and diverge to the south above a coarsening upward sequence correlative to the Black Alley Shale. This architecture is similar to the splitting of the Fort Cooper Coal Measures into the Burngrove and Fair Hill formations in the neighbouring Bowen Basin. The C seam is underlain by three seams, D, E and F, that exhibit complex splitting patterns reflecting compensational stacking of interburden strata and coals. These form the 'Colinlea Sandstone equivalent' that, to the south, transition to the Peawaddy Formation and Catherine Sandstone. The combination of these formations elevates the Betts Creek beds to group status. From east to west the Betts Creek Group incorporates units of coal seams known as the Crossmore and Glenaras sequences. However, these seams were only found local to the Hulton-Rand Structure, and do not have an equivalent in the Koburra Trough. They were renamed the 'J and K' seams, and removed from the Betts Creek Group. Chemical Abrasion-Isotope Dilution Thermal Ionization Mass Spectrometry (CA-IDTIMS) and palynological techniques were used to corroborate the proposed correlations. Tuffs within the C coal seams yielded zircon U-Pb dates of 254.31±0.10, 254.41±0.07 and 255.13±0.09 Ma, which are equivalent with a Lopingian date obtained from the Black Alley Shale on the Springsure Shelf, 254.08±0.06 Ma. The correspondence suggests that the C seam is an equivalent to a seam of the Fair Hill Formation in the Bowen Basin and a landward lateral equivalent of the Black Alley Shale, rather than the upper section of the 'Colinlea Sandstone equivalent'. A tuff date from the top of the B coal seam (252.81±0.07 Ma) correlates with published dates of the Yarrabee Tuff in the Bowen III Basin. This places the B seam as an equivalent to the Burngrove Formation and the overlying A seam, the only coal seam within the Bandanna Formation.The age of the 'J and K' seams were determined with palynology and found to contain the biozone APP3.2 index species, Praecolpatites sinuosus, placing them in the late Cisuraliane...

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Characterisation of coal using hyperspectral core scanning systems

Rodrigues

Fonteneau²,

Esterle

2023

International Journal of Coal Geology

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Paleo-environmental reconstruction of Lopingian (upper Permian) sediments in the Galilee Basin, Queensland, Australia

Cited by 11 publications

References 29 publications

Reinterpretation of Wire-line Log Data in the Eastern Galilee Basin, Queensland: Stratigraphical and Hydrogeological Implications.

Reinterpretation of Wire-line Log Data in the Eastern Galilee Basin, Queensland: Stratigraphical and Hydrogeological Implications.

Stratigraphic architecture of Lopingian (upper Permian) strata in the Galilee Basin, NE Australia

Characterisation of coal using hyperspectral core scanning systems

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