Jump to Search Jump to Navigation Jump to Content

Hashimoto high-grade martite-goethite, martite-microplatey hematite iron ore deposit – ore genesis and alteration zoning

Eastern Hamersley Province

Little work has been undertaken to integrate geochemical and hyperspectral methods into iron ore genetic studies.  For the first time in BIF-hosted iron ore research, this MSc project combines the application of CSIRO’s HyloggerTM analyses and spatially high-resolution major, trace and REE geochemistry, together with traditional core logging and petrography, to characterise ore and alteration types and understand ore formation. The object is the complex Hashimoto hematite-goethite (H-G), hematite-microplaty hematite -goethite (H-mplH-G) iron ore system in the Ophthalmia Range of the south-eastern Hamersley Province.

Rebecca’s study is embedded into the main project initiative “Alteration and mineralization styles related to high-grade iron ore in the eastern Hamersley Province, Western Australia” in collaboration with BHPBilliton Iron ore. The MSc research aims to determine:

  1. the presence and interrelationships of ore types;
  2. their mineralogical, spectral and geochemical characteristics;
  3. the geochemical balance of ore formation;
  4. alteration patterns in BIF spatially related to ore types; and
  5. hypogene hydrothermal and surface-related trends through the stratigraphy.