A drillcore imaging and spectroscopic scanning service is available to industry. It uses the CSIRO-developed HyLogger, which has special purpose automated core-logging technology. The Spectral Geologist (TSG) software generates digital images, surface profiles and mineralogical interpretations.

The HyLogger was provided to the Geological Survey of NSW (GSNSW) under the AuScope National Virtual Core Library (NVCL) project and is housed at the W B Clarke Geoscience Centre in Londonderry.

The HyLogger system acquires information on rock, ore and alteration minerals in drillcore, chips and pulps that are often difficult or impossible for the human eye to interpret correctly. Reflected light from the samples is broken into hundreds of different wavelengths by several spectrometers, allowing the recognition of unique spectral signatures for each mineral.

This technology is also used on cores from petroleum and carbon dioxide (CO2) geosequestration wells to obtain mineralogical data that may complement porosity and permeability studies.

X-ray diffraction and X-ray fluorescence instruments are used for rapid characterisation of a wide range of geological materials and for validating HyLogger data.

The GSNSW offers a number of HyLogger scanning services to industry and academia. Each service requires a level of investment by the client and offers different periods of confidentiality.

HyLogger datasets uploaded to AuScope and AusGIN

The table below shows the HyLogger datasets uploaded to the AuScope and AusGIN online portals since May 2020. These datasets and summary results are available for free download from these portals.

Dataset No. GSNSW Drill ID Hole NameProgram Upload Date
483 MIN_008655 YHD06 Yiddah - Barmedman 20/05/2020
484 MIN_040406 HWTD-10 Wagga Tank 20/05/2020
485 MIN_312026 CORC084 Collerina 3/06/2020
486 MIN_040397 HWTD-02 Wagga Tank 17/06/2020
487 MIN_040403 HWTD-08 Wagga Tank 17/06/2020
488 MIN_069150 DD05CH0044 Central Area - Cobar 17/06/2020
489 MIN_040396 NWTD-01 Wagga Tank 24/06/2020
490 MIN_040401 HWTD-06 Wagga Tank 24/06/2020
491 MIN_005705 MT-1 Minore 24/06/2020
492 MIN_005707 MT-3 Minore 24/06/2020
493 MIN_016966 DDHLN-6 Nil Desperandum Mine - Calarie 1/07/2020
494 MIN_137105 CBMD007 Currumburrama 1/07/2020
495 MIN_152616 FHD001 Fairholme 8/07/2020
496 MIN_165307 FHD004 Fairholme 8/07/2020
497 MIN_005706 MT-2 Minore 22/07/2020
498 MIN_165308 FHD005 Fairholme 22/07/2020
499 MIN_031649 DD96NO12A New Occidental 29/07/2020
500 MIN_040419 DD89HWTD21B Wagga Tank 29/07/2020
501 MIN_040441 DDHNFLD1 Fence Line 29/07/2020
502 MIN_040442 DDHTFLD2 Fence Line 29/07/2020
503 MIN_165309 FHD006 Fairholme 29/07/2020
504 MIN_040444 DDHTFLD4 Fence Line 5/08/2020
505 MIN_003285 PC178 Big Cadia - Cadia 12/08/2020
506 MIN_003288 PC181 Cadia Monzonite 12/08/2020
507 MIN_040443 DDHTFLD3 Fence Line - Anomaly C 12/08/2020
Total drillholes uploaded 25

Commercial service

The commercial service allows for generated data to remain confidential. Contact us to discuss charges and scanning timeframes.

Collaborative service

A special collaborative scanning service is offered to clients who only require a short period of confidentiality (up to 6 months). Under this arrangement, HyLogger data and any associated logs such as assays, magnetic susceptibility and geology logs provided by the client are uploaded to the AuScope Discovery portal at the end of the confidentiality period. Academic institutions and government agencies are charged the collaborative rate provided that the results are used for non-commercial purposes.

National Virtual Core Library service

Proposals for HyLogging™ of core already stored at the W B Clarke Geoscience Centre, Londonderry can be submitted for consideration. No period of confidentiality exists for this NVCL service. Consequently, the data is uploaded to the AuScope Discovery portal immediately after scanning and processing.

A company needs to provide a comprehensive rationale for HyLogging of specific cores. To ensure that this service is fairly shared only two holes, each up to 250m long, can be proposed by each company. Proposals are assessed by a committee of GSNSW geologists who determine the HyLogger scanning priorities.

Drillcore segments and rock samples

Individual core segments and rock samples can be submitted for HyLogger scanning. These are normally laid into core trays prior to scanning. There is a premium rate for the scanning of individual pieces of drillcore and rock samples. Contact us to discuss your requirements.

Reverse circulation chips

HyLogging of reverse circulation (RC) chips is done by a number of analytical laboratories and service companies throughout Australia. The HyLogging of chip trays is not routinely done by the GSNSW unless it falls within a specific GSNSW project.


All services provide simple user-TSA (The Spectral Assistant) interpretation and TSG (The Spectral Geologist) generated plots and outputs.

For further information
Jake Moltzen
+61 (0)2 4063 6580
+61 (0)2 4777 4397
947-953 Londonderry Road, Londonderry, NSW 2753 Map