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Great Artesian Basin geological and hydrogeological surfaces update: report and data package

<b>This data package is superseded by a second iteration presenting updates on 3D geological and hydrogeological surfaces across eastern Australia that can be accessed through </b><a href=" https://dx.doi.org/10.26186/148552">https://dx.doi.org/10.26186/148552</a>


The Australian Government, through the National Water Infrastructure Fund – Expansion, commissioned Geoscience Australia to undertake the project ‘Assessing the Status of Groundwater in the Great Artesian Basin’ (GAB). The project commenced in July 2019 and will finish in June 2022, with an aim to develop and evaluate new tools and techniques to assess the status of GAB groundwater systems in support of responsible management of basin water resources.

While our hydrogeological conceptual understanding of the GAB continues to grow, in many places we are still reliant on legacy data and knowledge from the 1970s. Additional information provided by recent studies in various parts of the GAB highlights the level of complexity and spatial variability in hydrostratigraphic units across the basin. We now recognise the need to link these regional studies to map such geological complexity in a consistent, basin-wide hydrostratigraphic framework that can support effective long-term management of GAB water resources.

Geological unit markers have been compiled and geological surfaces associated with lithostratigraphic units have been correlated across the GAB to update and refine the associated hydrogeological surfaces. Recent studies in the Surat Basin in Queensland and the Eromanga Basin in South Australia are integrated with investigations from other regions within the GAB. These bodies of work present an opportunity to link regional studies and develop a revised, internally consistent geological framework to map geological complexity across the GAB.

Legacy borehole data from various sources, seismic and airborne electromagnetic (AEM) data were compiled, then combined and analysed in a common 3D domain. Correlation of interpreted geological units and stratigraphic markers from these various data sets are classified using a consistent nomenclature. This nomenclature uses geological unit subdivisions applied in the Surat Cumulative Management Area (OGIA (Office of Groundwater Impact Assessment), 2019) to correlate time equivalent regional hydrogeological units. Herein we provide an update of the surface extents and thicknesses for key hydrogeological units, reconciling geology across borders and providing the basis for a consistent hydrogeological framework at a basin-wide scale.

The new surfaces can be used for facilitating an integrated basin systems assessment to improve our understanding of potential impacts from exploitation of sub-surface resources (e.g., extractive industries, agriculture and injection of large volumes of CO2 into the sub-surface) in the GAB and providing a basis for more robust water balance estimates.

This report is associated with a data package including (Appendix A – Supplementary material):

• Nineteen geological and hydrogeological surfaces from the Base Permo-Carboniferous, Top Permian, Base Jurassic, Base Cenozoic to the surface (Table 2.1),

• Twenty-one geological and hydrogeological unit thickness maps from the top crystalline basement to the surface (Figure 3.7 to Figure 3.27),

• The formation picks and constraining data points (i.e., from boreholes, seismic, AEM and outcrops) compiled and used for gridding each surface (Table 3.8).

Simple

Identification info

Date (Creation)
2021-02-19
Date (Publication)
2022-06-27T06:07:46
Date (Superseded)
2023-10-09
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/145927

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.11636/Record.2022.019

Cited responsible party
Role Organisation / Individual Name Details
Author

Vizy, J.

MEG Internal Contact
Author

Rollet, N.

MEG Internal Contact
Name

Record

Issue identification

RECORD: 2022/019

Purpose

Data compilation, acquisition, and associated report as part of the GAB project Milestone 31 - technical report

Status
Superseded
Point of contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Point of contact

Rollet, N.

MEG Internal Contact
Resource provider

Minerals, Energy and Groundwater Division

External Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

Extent

N
S
E
W


Maintenance and update frequency
As needed

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES

Place
  • Northern Territory

Place
  • Queensland

Place
  • South Australia

Place
  • New South Wales

Keywords
  • Cenozoic

Keywords
  • Mesozoic

Keywords
  • Paleozoic

Keywords
  • Basins

Keywords
  • GAB

Keywords
  • Great Artesian Basin

Keywords
  • Surat Basin

Keywords
  • Eromanga Basin

Keywords
  • Carpentaria Basin

Keywords
  • Clarence-Moreton Basin

Keywords
  • Groundwater

Keywords
  • Geological and hydrogeological architecture

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice
OnLine resource

Link to second iteration

Link to second iteration

Distribution format
OnLine resource

Download the Record (pdf) [8.6 MB]

Download the Record (pdf) [8.6 MB]

Distribution format
  • pdf

OnLine resource

Download the data [3.4 GB]

Download the data [3.4 GB]

Distribution format

Resource lineage

Statement

Study as part of the Great Artesian Basin groundwater storage project 2019-2022

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/b0b2dbc3-dc35-4941-8aec-b2b1f2a6efd4

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Owner

Rollet, N

Geoscience Australia Internal Contact
Point of contact

Rollet, N.

MEG Internal Contact

Type of resource

Resource scope
Document
Name

GA publication: GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/145927

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/5167d912-6784-4371-9938-3931e84ca6f1

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/84dfff6d-ec76-4af6-9584-8c3cdc360d4a

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/b0b2dbc3-dc35-4941-8aec-b2b1f2a6efd4

Date info (Creation)
2019-04-08T01:55:29
Date info (Revision)
2019-04-08T01:55:29

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

Basins Carpentaria Basin Cenozoic Clarence-Moreton Basin Eromanga Basin GAB Geological and hydrogeological architecture Great Artesian Basin Groundwater Mesozoic Paleozoic Surat Basin
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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