{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "clientservices@ga.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "d2be2328-bb39-43b2-a220-f206dca36903", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-10-16T11:37:53.840596", "metadata_modified": "2025-10-16T11:37:53.840602", "name": "pedirka-and-western-eromanga-basins-depth-and-isochore-maps-data-package-and-explanatory-notes", "notes": "This data package provides depth and isochore maps generated in support of the energy resource assessments under the Australia\u2019s Future Energy Resources (AFER) project. Explanatory notes are also included.\n\nThe AFER project is part of Geoscience Australia\u2019s Exploring for the Future (EFTF) Program\u2014an eight year, $225 million Australian Government funded geoscience data and precompetitive information acquisition program to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, Geoscience Australia is building a national picture of Australia\u2019s geology and resource potential. This will help support a strong economy, resilient society and sustainable environment for the benefit of all Australians. The EFTF program is supporting Australia\u2019s transition to a low emissions economy, industry and agriculture sectors, as well as economic opportunities and social benefits for Australia\u2019s regional and remote communities. Further details are available at http://www.ga.gov.au/eftf.\n\nThe depth and isochore maps are products of depth conversion and spatial mapping seismic interpretations by Szczepaniak et al. (2023) and Bradshaw et al. (2023) which interpreted 15 regional surfaces. These surfaces represent the top of play intervals being assessed for their energy resource potential (Figure 1). These seismic datasets were completed by play interval well tops by Bradshaw et al. (in prep), gross depositional environment maps, zero edge maps by Bradshaw et al. (in prep), geological outcrop data as well as additional borehole data from Geoscience Australia\u2019s stratigraphic units database.\n\nDepth and isochore mapping were undertaken in two to interactive phases; \n\n1.    A Model Framework Construction Phase \u2013 In this initial phase, the seismic interpretation was depth converted and then gridded with other regional datasets. \n\n2.    A Model Refinement and QC Phase \u2013 This phase focused on refining the model and ensuring quality control. Isochores were generated from the depth maps created in the previous phase. Smoothing and trend modelling techniques were then applied to the isochore to provide additional geological control data in areas with limited information and to remove erroneous gridding artefacts. \n\nThe final depth maps were derived from isochores, constructing surfaces both upward and downward from the CU10_Cadna-owie surface, identified as the most data-constrained surface within the project area. This process, utilizing isochores for depth map generation, honours all the available well and zero edge data while also conforming to the original seismic interpretation.\n\nThis data package includes the following datasets: \n\n1)   Depth maps, grids and point datasets measured in meters below Australian Height Datum (AHD, for 15 regional surfaces (Appendix A). \n2)   Isochore maps, grids and point datasets measured in meters, representing 14 surfaces/play internals (Appendix B).\n \nThese depth and isochore maps are being used to support the AFER Project\u2019s play-based energy resource assessments in the Pedirka and western Eromanga basins, and will help to support future updates of 3D geological and hydrogeological models for the Great Artesian Basin by Geoscience Australia.\n", "num_resources": 1, "num_tags": 41, "organization": {"id": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "name": "geoscience-australia-data", "title": "Geoscience Australia Data", "type": "organization", "description": "Harvester for Geoscience Australia Data", "image_url": "", "created": "2025-06-23T12:29:08.024111", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://ecat.ga.gov.au", "href": "https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/pedirka-and-western-eromanga-basins-depth-and-isochore-maps-data-package-and-explanatory-notes", "title": "Geoscience Australia"}, "owner_org": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[133.0, -28.0], [140.0, -28.0], [140.0, -23.0], [133.0, -23.0], [133.0, -28.0]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[133.0, -28.0], [140.0, -28.0], [140.0, -23.0], [133.0, -23.0], [133.0, -28.0]]]}", "state": "active", "temporal_coverage_from": "2025-06-09 05:33:49.542+00", "title": "Pedirka and western Eromanga basins depth and isochore maps - Data package and 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