Australia's nickel sulphide deposits: characteristics and new ideas for discovery

Dean Hoatson

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Summary

This keynote address was presented at the Australian Nickel Conference held in Perth, 13-14 October 2004.

Recommended citation: Hoatson, D. M., 2004. Australia's Nickel Sulphide Deposits: Characteristics and New Ideas for Discovery. Australian Nickel Conference 2004, Perth, Western Australia. October 13 - 14.

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Slide 1: Title and author

Slide 2: Outline

Slide 3: Major nickel deposits

Slide 4: Time-Event distribution of nickel sulphide deposits

Slide 5: Australian nickel production

Slide 6: Nickel 'boom' in Australia

Slide 7: Timeframes of nickel deposits

Slide 8: Australia’s nickel sulphide deposits

Slide 9: How does Australia compare?

Slide 10: Map showing nickel deposits discussed in presentation

Slide 11: Kambalda (2700 Ma): Yilgarn Craton

Slide 12: Cumulative frequency distribution of major nickel provinces

Slide 13: Geochronology of komatiites

Slide 14: 3-D Visualisation: Kambalda Dome

Slide 15: Lake Harris komatiite (2520 Ma): Gawler Craton

Slide 16: Stratigraphic section through the Lake Harris komatiite

Slide 17: S-saturation status of the Lake Harris komatiite

Slide 18: Proterozoic mafic-ultramafic intrusions: Halls Creek orogen

Slide 19: Sally Malay intrusion (1845 Ma)

Slide 20: Section through sub-chamber A of the Sally Malay intrusion

Slide 21: Nebo-Babel (~1080 Ma): Musgrave Block

Slide 22: Nebo: drill hole cross section

Slide 23: Metal character of massive sulphides

Slide 24: Proterozoic mafic-ultramafic intrusions: Arunta Block

Slide 25: Andrew Young Hills intrusion (1635 Ma)

Slide 26: Sulphur character of Arunta intrusions

Slide 27: Total magnetic intensity of the Andrew Young Hills intrusion

Slide 28: Avebury (Late Devonian): Western Tasmania

Slide 29: Recent Ni exploration hotspots and potential

Slide 30: Favourable mineralising elements komatiites: Ni-Cu-PGE

Slide 31: Favourable mineralising elements mafic intrusions: Ni-Cu-Co

Slide 32: 'Prospective' intrusions under cover – southern Australia

Slide 33: Loongana intrusion

Slide 34: Exploration strategies

Slide 35: 'Top three provinces' for exploration

Slide 36: New products from GA

Slide 37: Thank you