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Mineral Resources Tasmania

HyLogger

The HyLogger core scanner rapidly logs mineralogy and synchronously captures high resolution digital images of drill core. The system uses visible, near infrared and thermal infrared spectroscopy to identify and characterise minerals at a spatial resolution of one centimetre. HyLogging was developed by the CSIRO to provide an objective logging system to assist geologists to interpret drill core.

Key advantages

  • Objective, consistent and effective core logging
  • Visualisation of mineralogical and compositional variation
  • Improved understanding of alteration
  • Vectors to mineralisation
  • Samples measured in their original trays
  • Non destructive
  • Production of up to 500 m per day
  • Near real time analysis
  • High resolution digital images

Tasmanian HyLogger data can be found using the TIGER drillhole search form, which includes links to download data.

HyLogger scanning service

MRT offers a service to scan drill core, chips and hand specimens subject to demand. HyLogger scanning for commercial, collaborative and research applications is available. Please call (03) 6165 4800 to find out more or discuss making use of this service.

Minerals identified

Visible and near-infrared:

  • Fe oxides - hematite, goethite
  • AlOH Group - paragonite, muscovite, phengite, illite, pyrophyllite, kaolinite, halloysite, dickite, gibbsite, montmorillonite, palygorskite
  • Sulphates - alunite, jarosite, gypsum
  • FeOH Group - saponite, nontronite
  • MgOH Group - chlorites, biotite, phlogopite, antigorite, tremolite, actinolite-chrysotile-lizardite, talc, hornblende, brucite, serpentines
  • Carbonates - calcite, dolomite, Fe-dolomite, magnesite, ankerite, siderite
  • Prehnite, topaz, epidote-zoisite, tourmalines

Thermal infrared adds:

  • Anhydrous silicates - quartz, silica, feldspars, olivines, pyroxenes, garnets
  • Carbonates - cerrusite, smithsonite, strontianite, witherite, azurite, malachite, rhodochrosite, aragonite
  • Clinozoisite, prehnite, some zeolites, barite, apatite, borates, zircon, anadalusite, cordierite, vesuvianite, marialite, meionite, vonsenite, some metallic minerals

Useful references

Introduction to the HyLogger system
Mason, P.; Huntington, J. F. 2012. HyLogger 3 components and pre-processing: An overview. Technical Note Northern Territory Geological Survey 2012-002.

Introduction to the HyLogger system including core selection and preparation and case studies
Hancock, E. A. and Huntington, J. (2010) The GSWA NVCL HyLogger: rapid mineralogical analysis for characterizing mineral and petroleum core. GSWA Record 2010/17. 21pp.

Example of using HyLogger TIR data
Mauger, A. J.; Gordon, G. A.; Reid, A.; Kitto, K. (2012) Quantifying downhole silicate mineralogy? HyLogger with thermal infrared. ASEG Extended Abstracts 2012(1):1-6

HyLoggerTM is a Registered Trademark of the CSIRO