Authors / CoAuthors
Khider, K. | Kelman, A.
Abstract
Geoscience Australia is leading a regional evaluation of potential mineral, energy and groundwater resources through the Exploring for the Future (EFTF) program. This stratigraphic assessment is part of the Onshore Basin Inventories project, and was undertaken to understand Devonian-aged depositional systems and stratigraphy in Queensland’s Adavale Basin. Such data are fundamental for any exploration activities. Maximising the use of existing well data can lead to valuable insights into the regional prospectivity of sedimentary basins. Data from 53 Adavale Basin wells have been used to evaluate subsurface stratigraphy, depositional environments and hydrocarbon shows across the basin. Stratigraphic data from 26 representative wells, where the well intersected at least three Devonian stratigraphic units, are used to generate chronostratigraphic time-space charts and two-dimensional well correlations within, and between, different (northern, north central, central, west central, east central and southern) parts of the basin. The primary objectives of the study are: • stratigraphic gap analysis to identify geological uncertainties and data deficiencies in the areas of interest, • integrate the well data with Geoscience Australia’s databases (i.e., Australian Stratigraphic Units, Time Scale, Geochronology, STRATDAT, RESFACS),the Geological Survey of Queensland’s Datasets and publicly available (published and unpublished) research data and information, • determine the lithostratigraphic unit tops, log and lithology characterisations, depositional facies, boundary criteria, spatial and temporal distribution and regional correlations, • integrate key biostratigraphic zones and markers with geochronological absolute age dates to generate a chronostratigraphic Time-Space Diagram of the basin. This work improves the understanding of the chronostratigraphic relationships across the Adavale Basin. The age of the sedimentary successions of the basin have been refined using geochronology, biostratigraphy and lithostratigraphic correlation. The chronostratigraphic and biozonation chart of the Adavale Basin has been updated and the stratigraphic, biostratigraphic and hydrocarbon shows datasets will be available for viewing and download via the Geoscience Australia Portal (https://portal.ga.gov.au/restore/15808dee-efcd-428e-ba5b-59b0106a83e3).
Product Type
document
eCat Id
146996
Contact for the resource
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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Keywords
- ( Project )
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- EFTF – Exploring for the Future
- ( Project )
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- Basin Inventory
- ( Project )
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- Queensland
- ( Project )
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- Adavale Basin
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- Adavale
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- Stratigraphy
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- Time-space
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- Devonian
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- Data
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- Queensland
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- Basin inventory
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- Portal
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- Biostratigraphy
- theme.ANZRC Fields of Research.rdf
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- Stratigraphy (incl. biostratigraphysequence stratigraphy and basin analysis)
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- Published_External
Publication Date
2022-11-02T04:20:12
Creation Date
2022-07-01T02:00:00
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Status
completed
Purpose
1. Re-assess the stratigraphy of the Adavale Basin, determine the lithostratigraphic unit tops, log and lithology characterisations, depositional facies, boundary criteria, spatial and temporal distribution and regional correlations,2. integrate key biostratigraphic zones and markers with geochronological absolute age dates to generate a chronostratigraphic Time-Space Diagram of the basin.
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irregular
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geoscientificInformation
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<div>The stratigraphic, biostratigraphic and hydrocarbon shows datasets of the Adavale Basin will be available for viewing and download via the Geoscience Australia Portal </div>
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Extents
[-30.00, -9.00, 138.00, 154.00]
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