2.1

COLQUHOUN G.P., HUGHES K.S., DEYSSING L., BALLARD J.C., PHILLIPS G., TROEDSON A.L., FOLKES C.B. & FITZHERBERT J.A. 2018. New South Wales Seamless Geology dataset, version 1 [Digital Dataset]. Geological Survey of New South Wales, NSW Department of Planning and Environment, Maitland.

This data is part of the New South Wales Seamless Geology database, version 2.0, which is a statewide compilation of the best available digital geological mapping data in an internally consistent GIS format.

Dataset Authors:

Colquhoun, G.P.

Hughes, K.S.

Deyssing, L.

Ballard, J.C.

Phillips G.

Troedson, A.L.

Folkes C.B.

Fitzherbert J.A.

Scheduled updates to this dataset are planned as new data becomes available.

Disclaimer

While the material has been created with all due care, the Department of Regional NSW does not warrant or represent that the material is free from errors or omission, or that it is exhaustive. Because the material is designed to promote the free exchange of information only, the Department cannot and does not make any claim as to the accuracy, authenticity, currency, completeness, reliability or suitability of any material, especially material supplied by third parties or linked to third party sites. The material is provided on the basis that you are responsible for assessing the relevance of its content. The Department will not accept liability for any loss, damage, cost or expense that you may incur as a result of the use of or reliance upon the material on this product or any linked sites. Please also note the material may change without notice and you should use the current material from the Mining, Exploration and Geoscience website ( https://www.resourcesandgeoscience.nsw.gov.au/) and not rely on material previously printed or stored by you. Copyright Statement © State of New South Wales and Department of Regional NSW 2020 (unless otherwise indicated). This product contains information, data, documents, pages and images (“the material”) prepared by the NSW Government Department of Regional NSW (the Department). The New South Wales Government, operating through the Department, supports and encourages the dissemination and exchange of publicly funded information and endorses the use of the Australian Governments Open Access and Licensing Framework (AusGOAL). Subject to the exceptions listed below, the material available on this product is owned by the Department and is protected by Crown Copyright. It is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0). The legal code for the licence is available at Creative Commons - see http://creativecommons.org/licenses/by/4.0/legalcode Please give attribution in this form: © State of New South Wales and Department of Regional NSW 2020 We also request that you observe and retain any copyright or related notices that may accompany this material as part of the attribution. The Creative Commons licence does not apply to: • the Government Coat of Arms, New South Wales Government logo, Department logo, or any other government-owned trademarks, logos and brands • trade marks • intellectual property (including copyright) owned by third parties including photographs, illustrations, artwork and maps • personal information • other materials specifically not provided under a Creative Commons Attribution 4.0 licence.

Version 6.2 (Build 9200) ; Esri ArcGIS 10.4.0.5524

The dataset covers the land areas of New South Wales, Australia (including Lord Howe Island). A 10 km buffer into Queensland and Victoria is also included.

The NSW Seamless Geology Project team has compiled the best available geological data for the state into an internally consistent geodatabase. As part of the compilation process, contributing datasets were organised into a series of layers, or time slices, that represent the major lithotectonic subdivisions of the state’s geology. The data was then stitched/smoothed along existing map and dataset boundaries to create a seamless dynamic model of the geology of NSW.

What's new in Version 2 (May 2020)?

• The geology of the Talmo area, southwest of Yass, was revised and updated

• East Riverina mapping project -The release includes updated linework for the Lachlan Orogen, Western Devonian Basins and Cenozoic Sedimentary provinces from the East Riverina Mapping Project. The project ran from 2014 to 2019, and covered the entirety of the Ardlethan, Narrandera, Coolamon, Lockhart, Wagga Wagga 1:100 000 map sheets, the NSW portions of the Holbrook, Wymah, Albury 1:100 000 map sheets, and parts of the Barmedman, Temora, Junee, Tarcutta and Walbundrie 1:100 000 map sheets.

• Detailed fault attributes have been added to the western Lachlan Orogen, following earlier work on the eastern part of the orogen (see version 1.1 above).

• The mapping of the southern part of Yass 100K and northern part of Brindabella 100K was extensively revised and updated based on previously unpublished thesis and student mapping and unpublished data collected during mapping of the Yass 100K Geology map.

• Approximately 11,000 new structure points were added to the Curnamona Province and Lachlan Orogen layers. These were extracted from a WFS of Geoscience Australia’s structure point data in July 2018 and filtered to obtain unique points that weren’t previously included in the Seamless Geology structural point data.

• The RockUnit polygon attribute table has been further revised and updated. Over 30,000 attribution changes were made to the master look-up table, correcting spelling mistakes, colour code issues. 4 new columns have been added to the attribute table to capture the best available isotopic dating for the unit (Iso_Age_best_Ma, Iso_Age_Best_Error, Iso_Age_best_method, Iso_Age_best_comments). These have been populated for all layers on a provisional basis, pending the release of a more thorough attribution of isotopic and biostratigraphic age data in future versions of the NSW Seamless Geology.

• Lord Howe Island – The geology of Lord Howe Island has been included in the NSW Seamless Geology for the first time. • Cenozoic Igneous Province Upgrade – A revision of the Cenozoic Igneous Province (CIP) was undertaken to incorporate a significant body of literature which names, describes, and provides age constraints for these rocks in New South Wales.

• Newcastle Coal Measures – using detailed unpublished maps, the Newcastle Coal Measures have now been divided down to formation and member level.

• 923 structure points were added to the Lachlan Orogen structure point from the Turon River-Palmers Oakey area, west of Capertee. Data courtesy of Chris Fergusson (University of Wollongong).

Changes in Version 2

New changes incorporated in version 2 of the Eastern Lachlan Orogen GIS include the following: A new structure layer, consisting of named folds and faults, has been added. This has been compiled from published map sheets with little modification by Dawson and Glen. New mapping added for the Yass and Taralga 1:1000 00 sheets from the Goulburn mappers The Tumut 1:100 000, Cootamundra 1:100 000 and Cootamundra 1:1250 000 sheets have been edge matched by M. W. Dawson & R. A. Glen. The Goulburn and Bathurst 1:250 000 sheets have been edge-matched by M. W. Dawson in general and by C. Quinn in detail (see below). On Goulburn, the Mundoonen Sandstone has been taken out of Yalmy Group and placed into new Margules Group by the mappers on the Goulburn 1:250 000 sheet. The Poidevins Sandstone is also placed in this new group. Southwest corner of Wagga 1:250 000 sheet interpreted by M. W. Dawson, in part after the Discovery 2000 project in this area (Albury Geocience Database 1997, Geological Survey of New South Wales, published on CD-ROM). Northern Lachlan Orogen — Basement geology north of Dubbo and Narromine 1:250 000 sheets, beneath the Surat and Gunnedah basins, is based on interpretation of regional geophysics carried out by Vladimir David and R .A .Glen in 2003 and by M. W. Dawson and R. A. Glen in 2006. Canberra-Goulburn 1:250 000 join. 1. Some problems still remain with Adaminaby Group versus Campbells Group, but large areas have now been reassigned to Adaminaby Group by C. Quinn (as part of pmd CRC Tasmanides project). The Frogmore Fault Zone was extended onto the Canberra sheet. However, some problems remain with matching Adaminaby Group and Campbells Group. 2. Matching the join between the western part of the Michelago 1:100 000 sheet and the Canberra 1:100 000 sheet was assisted by data from Henderson (1987). Limited changes only have been made to the geology as shown on Michelago 1:100 000 sheet (Richardson and Barron 1977), restricted mainly to relabelling Colinton Volcanics to Deakin Volcanics in the NW corner of the map sheet. The Royalla and Lanyon faults were used as boundaries for that separation, and as boundaries between the Canberra Yass Shelf and the Ngunawal Basin. 3. Edge mismatch of the Yalmy Group between Cooma and Michelago 1:100 000 sheets northeast of Cooma was fixed by C. Quinn and M. Dawson, using in part data from honours thesis of J. Needham, (Newcastle University). Bathurst-Goulburn 1:250 000 join 1. The Blayney and Crookwell 1:100 000 sheets have been edge matched, with Campbells Group and Box Ridge Volcanics continued across the join. 2. The four-way join of the Oberon-Blayney-Crookwell-Taralga 1:100 000 sheets has been modified, with large areas incorporated into Campbells Group. Macquarie Arc rocks being included into Campbells Group because of its quartz-rich composition. Campbells-Adaminaby Group problem still exists west of the Copperhania Fault Bathurst 1:250 000 Sheet 1. Oberon area. This sheet has undergone significant reinterpretation by C. Quinn (as part of pmd CRC Tasmanides project) which also includes some new mapping of Meffre (2003), but with revision of some of his lithologies. Some Triangle Formation is now included in the Box Ridge Volcanics. Arc rocks are separated from Campbells Group by a NE-trending shear zone 2. Some outcrop in SW corner of Oberon is now included in the Pipers Flat Formation. Some Adaminaby Group is now included in Campbells Group (C. Quinn, as part of pmd CRC Tasmanides project). 3. There has been a change to the distribution of units east of the Sofala Volcanics by S. Meffre & R Scott (CODES, University of Tasmania) (Meffre et al. in press Australian Journal of Earth Sciences). TABBERABBERAN CYCLE 1. Extrapolation of Early Devonian Bindook Complex to NE, under the western part of Sydney Basin and inferred extent of source caldera complex (Glen 2005). 2. Geology adjacent to and under the western part of the Sydney Basin was added, based on the Glen Alice and Olinda 1:50 000 coalfield geology maps plus interpretation of regional geophysical data (Glen & Dawson 2006). 3. Hatchery Creek Conglomerate placed into the Tabberabberan Cycle rather than the Kanimblan Cycle. KANIMBLAN CYCLE 1. extrapolation of Comerong Volcanics and Merrimbula Group under western part of Sydney Basin (Glen 2005) 2. Budawang Synclinorium edge-matched between Goulburn and Wollongong 1:250 000 sheets by Dawson and Glen and extended NE under cover of the Sydney Basin by Glen. 3. Carboniferous granites have been taken out of the Kanimblan Cycle and placed in the Hunter Bowen Supercycle as discussed below CHANGES TO THE MACQUARIE ARC 1. These were obtained as part of a CODES (University of Tasmania)-Geological Survey of NSW- Industry ARC-funded project on the Macquarie Arc. 2. Recognition of the Fairbridge Formation north of Molong and subdivision based on mapping by S. Meffre. (Crawford et al. in press Australian Journal of Earth Sciences). 3. Recognition of the Millthorpe Volcanics near Blayney based on paper by Crawford et al. (in press Australian Journal of Earth Sciences) and Squire & Crawford (in press Australian Journal of Earth Sciences). 4. Recognition of the Cheesemans type lithology NE of Wellington (Bodangora area) (Percival & Glen in press Australian Journal of Earth Sciences ) 5. Re-establishment of name Cargo Volcanics in the Cargo Block in place of, and as equivalent of, the Fairbridge Volcanics (Percival & Glen in press Australian Journal of Earth Sciences ) 6. Forest Reefs Area. Change in map pattern in the Forest Reefs Volcanics based on mapping by R. Squire (R. Squire Ph.D. thesis, University of Tasmania; Squire & Crawford in press Australian Journal of Earth Sciences; Squire & McPhie in press Australian Journal of Earth Sciences) 7. Renaming of Cheesemans Creek Volcanics in Cargo Block to Malachis Hill Formation. Ian Percival (Percival & Glen in press Australian Journal of Earth Sciences) 8. Reinterpretation of Sourges Shale and Kabadah Formation (Percival & Glen in press Australian Journal of Earth Sciences; Barron et al. in press Australian Journal of Earth Sciences) 9. Assigning the Nash Hill Volcanics to the Llandovery by A. J. Crawford. (Crawford et al. in press Australian Journal of Earth Sciences). 10. Addition of Bushmans Volcanics - mapped distribution from Krynen et al 1990 ,attribution with Nash Hill Volcanics by A. J. Crawford (Crawford et al. in press Australian Journal of Earth Sciences). 11. Mistake in the extent of Mingelo Volcanics from first edition was fixed from aeromagnetic interpretation (R. A. Glen ) 12. The Kiandra Volcanic Belt includes the tholeiitic the Gooandra Volcanics and the Jagungal Volcanics as constituents. It may have been preferable to place these units into the Igneous Ocean Crust Terrane rather than the Macquarie Arc. (R. A. Glen ) References HENDERSON G. A. M.1987. Late Silurian Geology of the Michelago-Cooma area (1:100 000 scale map). Bureau of Mineral Resources, Canberra. RICHARDSON S. J. & BARRON L. M.1977. Michelago 1:100 000 Geological Sheet 8726. In: Editor. Book Michelago 1:100 000 Geological Sheet 8726, pages, Geological Survey of NSW, Sydney

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ISO 19139 Geographic Information - Metadata - Implementation Specification ISO 19139 Geographic Information - Metadata - Implementation Specification

2007