The HyLogger™ drill core scanning device

The National Virtual Core Library (NVCL) is a collaborative infrastructure project with AuScope, an institution that promotes the use of innovative infrastructure to produce and deliver geoscientific data. The purpose of the NVCL is to improve our understanding of the geology of the uppermost 2 km of the continent's crust.

The Geological Survey of NSW (GSNSW) has a NVCL node at the W B Clarke Geoscience Centre, Londonderry, NSW. The NVCL project uses the CSIRO-developed HyLogger™ drillcore scanning system for imaging and acquiring spectral information about rock, ore and alteration minerals in drillcore, chips and pulps. The images and data are archived within the NVCL so that mineral explorers and researchers can view and download them via the internet. The node has its own portable X-ray diffraction and X-ray fluorescence  instruments for supporting NVCL projects and validating HyLogging data.

The work program is guided by exploration industry requests and research priorities of the GSNSW. The exploration industry has shown strong interest and several companies are collaborating with the project.  A drillcore imaging and spectroscopic scanning service is available to industry.

Project update

Completed drillcore scans against broad scale tectonic divisions of NSW in a new window

NSW NVCL Drillcore Status
Click to enlarge

As of July 2018, 384 drillholes have been scanned, equivalent to 110 km of core. The AuScope Discovery and AusGIN Geoscience portals will continue to be populated throughout 2018-19 with high resolution hyperspectral data and corresponding photo-logs of scanned drillcore. To date, 315 drillhole datasets are available for download from the portals.

During 2018, a total of 8 km of core from mineral deposits and prospects within the Cobar Basin is being scanned with the HyLogger to help understand the metamorphic and alteration mineralogy associated with mineralisation in the region. Commonwealth (NCRIS2) funds are being used to transport this core from the Cobar region to the core library in Londonderry.

For further information please email david.tilley@planning.nsw.gov.au.