Data

West Musgrave 3D palaeovalley point dataset ~ Base of Cenozoic depth estimates made using AusAEM (airborne electromagnetic) conductivity models

Geoscience Australia
Sen, A. ; Symington, N. ; Halas, L. ; Hope, J. ; Wong, S. ; Thiele, Z. ; Lester, J. ; Sundaram, B. ; LeyCooper, Y.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26186/150822&rft.title=West Musgrave 3D palaeovalley point dataset ~ Base of Cenozoic depth estimates made using AusAEM (airborne electromagnetic) conductivity models&rft.identifier=10.26186/150822&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=As part of the Exploring for the Future program, Geoscience Australia undertook an investigation into palaeovalley groundwater resources within the West Musgrave region of Australia (Symington et al., 2024). The investigation, which spans the WA, SA and NT borders, inferred the architecture of the region’s palaeovalleys via interpretation of airborne electromagnetic conductivity models, borehole data and geologic outcrop. This record presents the base of Cenozoic depth estimates made along the AusAEM airborne electromagnetic (AEM) conductivity models used in this investigation.To maximize the value of depth estimates from projects across Geoscience Australia, the Estimates of Geological and Geophysical Surfaces (EGGS) database was developed to store standardised interpretations of stratigraphic horizons (Mathews et al., 2020).Standardisation in part aims to maintain the ability for users to take point data/depth estimates from the EGGS database and recombine them back into their original line data/interpreted horizons. To achieve this, all points along any particular segment need to maintain identical metadata. This requirement means that annotations made to a single point will propagate across the whole segment of which it is part.As such, the base of Cenozoic depth estimates from this investigation, originally created with Petrel, were annotated to enhance the value of the data and then standardised to comply with the requirements of the database. These modifications facilitate the integration of these depth estimates into future models delivered under the Resourcing Australia’s Prosperity initiative (RAPi).Statement: These point data form the (partial) basis from which the base of Cenozoic surface was released, as part of the West Musgrave 3D palaeovalley model report and data (Symington et al., 2024). These points were derived along AusAEM flight lines, and do not include the dummy thalweg points nor those associated with SPECTREM flight lines as described by Symington et al., 2024 Annotations were made to this subset to make them EGGS compliant. Annotations are described in the Metadata statement.&rft.creator=Sen, A. &rft.creator=Symington, N. &rft.creator=Halas, L. &rft.creator=Hope, J. &rft.creator=Wong, S. &rft.creator=Thiele, Z. &rft.creator=Lester, J. &rft.creator=Sundaram, B. &rft.creator=LeyCooper, Y. &rft.date=2026&rft.coverage=westlimit=126.07; southlimit=-28.66; eastlimit=130.22; northlimit=-24.28; projection=GDA94 / geographic 2D (EPSG: 4283)&rft.coverage=westlimit=126.07; southlimit=-28.66; eastlimit=130.22; northlimit=-24.28; projection=GDA94 / geographic 2D (EPSG: 4283)&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2026&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/pspf-annual-release&rft_subject=geoscientificInformation&rft_subject=West Musgrave hydrogeology&rft_subject=EGGS - Estimates of Geological and Geophysical Surfaces&rft_subject=palaeovalley&rft_subject=National Onshore Geology&rft_subject=AEM - Airborne Electromagnetic&rft_subject=point data&rft_subject=3D&rft_subject=Base of Cenozoic&rft_subject=Resourcing Australia’s Prosperity&rft_subject=Stratigraphy (incl. biostratigraphy&rft_subject=sequence stratigraphy and basin analysis)&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
https://creativecommons.org/licenses/by/4.0/

© Commonwealth of Australia (Geoscience Australia) 2026

Australian Government Security Classification System
https://www.protectivesecurity.gov.au/pspf-annual-release

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Full description

As part of the Exploring for the Future program, Geoscience Australia undertook an investigation into palaeovalley groundwater resources within the West Musgrave region of Australia (Symington et al., 2024). The investigation, which spans the WA, SA and NT borders, inferred the architecture of the region’s palaeovalleys via interpretation of airborne electromagnetic conductivity models, borehole data and geologic outcrop. This record presents the base of Cenozoic depth estimates made along the AusAEM airborne electromagnetic (AEM) conductivity models used in this investigation.

To maximize the value of depth estimates from projects across Geoscience Australia, the Estimates of Geological and Geophysical Surfaces (EGGS) database was developed to store standardised interpretations of stratigraphic horizons (Mathews et al., 2020).

Standardisation in part aims to maintain the ability for users to take point data/depth estimates from the EGGS database and recombine them back into their original line data/interpreted horizons. To achieve this, all points along any particular segment need to maintain identical metadata. This requirement means that annotations made to a single point will propagate across the whole segment of which it is part.

As such, the base of Cenozoic depth estimates from this investigation, originally created with Petrel, were annotated to enhance the value of the data and then standardised to comply with the requirements of the database. These modifications facilitate the integration of these depth estimates into future models delivered under the Resourcing Australia’s Prosperity initiative (RAPi).

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Statement: These point data form the (partial) basis from which the base of Cenozoic surface was released, as part of the West Musgrave 3D palaeovalley model report and data (Symington et al., 2024).
These points were derived along AusAEM flight lines, and do not include the dummy thalweg points nor those associated with SPECTREM flight lines as described by Symington et al., 2024
Annotations were made to this subset to make them EGGS compliant. Annotations are described in the Metadata statement.

Notes

Purpose
This data package contains subset of the point data employed to derive the parent dataset (Symington et al., 2024). These data are delivered in standardised EGGS format to enhance their accessibility and usability as inputs into a wide range of geoscientific modelling and analyses.

Created: 01 02 2026

Issued: 07 05 2026

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130.22,-24.28 130.22,-28.66 126.07,-28.66 126.07,-24.28 130.22,-24.28

128.145,-26.47

text: westlimit=126.07; southlimit=-28.66; eastlimit=130.22; northlimit=-24.28; projection=GDA94 / geographic 2D (EPSG: 4283)

Subjects
3D | AEM - Airborne Electromagnetic | Base of Cenozoic | EGGS - Estimates of Geological and Geophysical Surfaces | National Onshore Geology | Published_External | Resourcing Australia’s Prosperity | Stratigraphy (incl. biostratigraphy | West Musgrave hydrogeology | geoscientificInformation | palaeovalley | point data | sequence stratigraphy and basin analysis) |

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Other Information
Download Metadata Statement (docx) [957.50 KB]

url : https://d28rz98at9flks.cloudfront.net/150822/150822_00_0.DOCX

Download Data (xlsx) [2.72 MB]

url : https://d28rz98at9flks.cloudfront.net/150822/150822_01_0.XLSX

West Musgrave 3D palaeovalley model report and data

local : 149152

Identifiers
ACN 633 798 857