XplorPak 2021

XplorPak 2021 provides information on the geology, and mineral and energy resources of New South Wales, Australia, with links and data to help explorers and other stakeholders. It focusses specifically on information for metallic minerals, industrial minerals, geothermal resources, coal and petroleum.

Advanced mineral projects & exploration highlights in NSW

Discover recent exploration results along with resource figures for operating mines with the new advanced mineral projects and exploration highlights map.

Quarterly Note 153 – Ordovician graptolites and conodonts of NSW

An important new fossil site in southern NSW is described in this issue. Its discovery helps refine the evolutionary relationships of the taxa preserved and their use in correlation of Ordovician deepwater sedimentary rocks in NSW.

Quarterly Note 152 – Alteration in the Cobar mineral district

This issue describes the results of HyLogger™ hyperspectral scanning in combination with petrographic validation of mineralised drillcore. The study compares the mineralogy of altered versus unaltered host rock sequences of selected ore deposits in the Cobar mineral district.

A geological map of the Warrumbungles region

The 1:50,000 map Geology of Warrumbungle National Park is now available for download and will be available for $11 from the national park and via mail. Based on mapping by the GSNSW and former Office of Environment and Heritage, it presents a new and detailed look at the rocks of Warrumbungle Volcano and its eruption history. On the back of the main map is an educational poster.

Contact: geoscience.products@geoscience.nsw.gov.au

Newcastle Coastal Geotrail – app and brochure

This geotrail was launched in August 2020 and is supported by the free NSW GeoTours app. A colour brochure featuring a map of the geotrail and summary information and photos about each of the 14 stops is also available from our Maitland office or Newcastle Tourist Centre at 430 Hunter St, Newcastle.

New detailed statewide geophysical imagery

High resolution open-file company data have been merged with regional government data to create new, improved statewide magnetics and gravity images. They provide greater detail of magnetic and gravity anomalies at the camp and prospect scales. Images and grids of total magnetic intensity, first derivative, second derivative, tilt-angle filter and isostatic residual gravity can be viewed in MinView and downloaded into your GIS targeting projects.

Seamless Geology of NSW

Version 2.0 of the NSW Seamless Geology dataset is available for free download in various GIS formats. This package represents the latest seamless statewide compilation of the best available NSW digital geology mapping.

A simplified format can also be used on smartphones and tablets using the Explorer for ArcGIS mobile application. Download the new seamless mobile map here.

The NSW Seamless Geology Project is an ongoing initiative that commenced in late 2013. Version 2.0 is the 2nd update of the Seamless Geology dataset (Version 1.0 was released in October 2018). It includes new mapping data from the Lachlan Orogen and Sydney Basin, as well as extensive upgrades to the attribute tables. The geology of Lord Howe Island is also included for the first time.

Yathong–Ivanhoe Trough Petroleum Data Package

Previously known as two separate troughs, the Yathong Trough and Ivanhoe Trough have now been combined, based on revised interpretations and new data. The newly defined Yathong-Ivanhoe Trough within the Darling Basin is prospective for petroleum resources, but exploration to date has been limited in this trough. Recent interpretations and modelling using seismic data acquired after 2006, and modern petroleum systems knowledge, provide new exploration opportunities.

The new data package builds on the Darling Basin Data Package 2017, providing more focussed data and information about the Yathong-Ivanhoe Trough.

The Yathong‒Ivanhoe Trough Data Package 2020 assists potential explorers to readily access existing data and new interpretations, modelling and analysis. It is available on a USB drive and will be updated as new data and information are acquired.

New mineral resource projects map for NSW

Released in March 2021, the latest mineral resource projects map is available for free. This 1:1.5 million scale map includes operating coal, metallic and mineral sand mines, major industrial mineral operations, gemstone operations and districts, inactive mines, advanced projects, geologically significant deposits and infrastructure. Mineral deposit data was extracted from the NSW MetIndEx database with production based on royalty data.

A less detailed pocket-sized version at 1:3 million scale is also available for free.

3D model of major faults in the eastern Lachlan Orogen

The Geological Survey of NSW has released a 3D model of major faults in the eastern Lachlan Orogen using all available geological mapping, borehole and geophysical data.

The model is a powerful tool for studying the evolution of geology in NSW over the past 500 million years and gives a geological context for the location of major mineral resources.

Central Lachlan Orogen mineral potential mapping project

The central Lachlan Orogen mineral potential mapping report and data package have been released. Three significant mineral systems were analysed in the central Lachlan Orogen mineral potential study: Granite-related Sn–W in the central Lachlan Orogen and Cobar Cu–Au and Cobar Pb–Zn systems of the Cobar Superbasin. Spatial modelling experts Kenex Pty Ltd and the GSNSW Mineral Systems section used a weights-of-evidence approach, creating up to 225 predictive maps for each mineral system, and up to 9 maps for the final models. Data is being released as a mineral potential atlas that can now be downloaded through DIGS.

MinView updates

MinView is a public map viewer, provided by the Geological Survey of NSW, with free access to view, search and download a range of geoscientific data for NSW.

Functionality and data that have been added recently include:

  • quick title searches
  • search intersecting features using the quick selected title or application (search by selection)
  • NSW Seamless Geology 2.0
  • NSW statewide magnetics and gravity merges
  • AusLAMP MT depth slices and 3D Cobar AEM survey curtains
  • mineral potential mapping for 16 key NSW mineral systems including Cu-Au porphyry
  • mineral collection specimen locations and photos.

Government geotechnical reports and data released

The GSNSW is working with other NSW Government agencies to manage all government geotechnical reports and data for the state. GSNSW completed Phase 1 of this multi-year project by uploading around 3400 Public Works Advisory reports to a new geotechnical collection in DIGS® (found in the search tab in the header) and creating a new geotechnical report view in MinView (using Add view tab and selecting Geotechnical reports).

More information on this project.

Periodic table of mobile phones

The Geological Survey of NSW has released a great new teaching aid, focussing on metals found in mobile phones. It includes a map showing areas in NSW that produce, or have the potential to produce, some of these metals. There’s also a build-it-yourself mobile phone display sheet. Add your own mobile phone parts and learn about the metals in them!

Download the Periodic Table of Mobile Phones resource.

For more information about high-tech metals see our High-tech metal resources of NSW map.

Supply and Demand Profile of Geological Construction Materials for the Greater Sydney Region

The Supply and Demand Profile of Geological Construction Materials for the Greater Sydney Region is available in DIGs. This report contributes to the government’s knowledge of the availability, location and future land use requirements of raw geological material in the Greater Sydney region. Two further documents support the report:

  • Peer Review and Gap Analysis of the Supply and Demand Study for the Greater Sydney Region and its supporting data;
  • Response to the issues raised in the Peer Review Report.

MEG recommends that these three documents are read, used and referenced in conjunction with one another. These reports are available for viewing and download from our DIGs database.