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