2.6

COLQUHOUN G.P., HUGHES K.S., DEYSSING L., BALLARD J.C., FOLKES C.B, PHILLIPS G., TROEDSON A.L. & FITZHERBERT J.A. 2023. New South Wales Seamless Geology dataset, version 2.6 [Digital Dataset]. Geological Survey of New South Wales, Department of Regional NSW, Maitland.

This data is part of the New South Wales Seamless Geology database, version 2.6, 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

The information contained in this product is based on knowledge and understanding at time of writing [May 2026].

Users should not rely solely on the information in this product in making decisions but should make their own inquiries and obtain professional advice. Users can check the currency of the information at the NSW Resources website.

The Department of Primary Industries and Regional Development (‘the Department’) and the State of New South Wales do not give any warranty or make any representation about the accuracy, currency, reliability, relevance or completeness of any information contained in this product. To the fullest extent permitted by the law, the Department excludes all liability in relation to the information contained in this product, or for any injury, loss or damage to any person relying upon any such information.

Copyright Statement

© State of New South Wales through the Department of Primary Industries and Regional Development (NSW Resources) 2026.

The State of New South Wales, acting through the Department of Primary Industries and Regional Development, supports and encourages the reuse of its publicly funded information and endorses the use of the Australian Government’s Open Access and Licensing Framework (AusGOAL).

This product is licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0).

Please give attribution in this form:

© State of New South Wales and the Department of Primary Industries and Regional Development 2026.

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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.

Murray Basin

During editing for version 2.1 of the Seamless Geology, the Cenozoic Murray Basin of southwest NSW was divided into its constituent units (formation or group level), with particular emphasis on the Loxton Sands, an economically significant unit containing numerous heavy mineral sand placer deposits and a number of mines producing rutile, zircon, and ilmenite. The updated geology and subsurface distribution of the various units was largely derived from the seminal work of Brown and Stephenson (1991), with additional data added from more recent work (Whitehouse 2009; Miranda et al., 2009; McLaren et al., 2009; McLaren et al., 2011). The linework was then edited to reconcile the data with mapping in the existing NSW Seamless Geology dataset. In addition, all outcrops of the former “Loxton Parilla Sands” and “Parilla Sands” have been changes to “Loxton Sands” following simplification of the unit’s nomenclature be Geoscience Australia. The unit name has since been changed to “Loxton Sand” (2023).

Brown CM and Stephenson AE (1991) Geology of the Murray Basin, southeastern Australia, Bureau of Mineral Resources, Geology and Geophysics, Bulletin 235.

McLaren S, Wallace MW, Pillans BJ, Gallagher SJ, Miranda JA and Warne MT (2009) Revised stratigraphy of the Blanchetown Clay, Murray Basin: age constraints on the evolution of paleo Lake Bungunnia, Australian Journal of Earth Sciences, 56(2):259-270, doi:10.1080/08120090802547074.

McLaren S, Wallace MW, Gallagher SJ, Miranda JA, Holdgate GR, Grow LJ, Snowball I and Sandgren P (2011) Palaeogeographic , climatic and tectonics changes in southeastern Australia: the Late Neogene evolution of the Murray Basin, Quaternary Science Reviews, 30:1086-1111.

Miranda JA, Wallace MW and McLaren S (2009) Tectonism and eustasy across a Late Miocene strandplain: The Loxton-Parilla Sands, Murray Basin, southeastern Australia, Sedimentary Geology, 219, 24-43.

Whitehouse J (2009) Mineral systems of the Murray Basin, New South Wales, Quarterly Notes of the Geological Survey of New South Wales, QN132.

dataset

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

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