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 April 2016, 239 drillholes have been scanned, equivalent to 77 km of core. The AuScope Discovery portal will continue to be populated throughout 2016-17 with high resolution hyperspectral data and corresponding photo-logs of scanned drillcore. To date, 221 drillhole datasets are available for download from the portal.

During 2016, a total of 9 km of core from mines in the Cobar area is being scanned with the HyLogger to help understand the metamorphic and alteration mineralogy associated with mineralisation in the region. Commonwealth (NCRIS2) funds were used to transport this core from Cobar to the core library in Londonderry.

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