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6th International Archean Symposium
6th International Archean Symposium

Evolution of Earth’s Global Mineralising systems and related Exploration Targeting. Revised view using EagleEye Data.

Poster

Talk Description

Over the last 30 years successful experimentation with structural recognition and enhancement programs to look into Earth’s geological structure developed into the EagleEye system. We can now obtain MRI type Earth structural geology from the surface to Inner Core. Everywhere Earth has been examined there is evidence of a brittle geological lithospheric environment down to the Outer Core. There is also abundant evidence of continental scale block movement. This block movement is generated from the core to the surface as the plate margins extend subvertically to the core. Thus, there are release paths from the core to the surface for mineralisation. Earth mineralising systems. It is suggested that the mass of the giant subductions around the original Theia Impact in the Pacific Ocean are ‘scraped off’ by the hotter Outer Core which is then pressurised releasing heat and mass back up to the surface. The over-pressuring and subsequent release of the outer core probably precipitates the cycles of mineralisation on Earth. It is suggested the first major tectonism occurred at 3 – 2.6 Ga forming the first worldwide mineralisation events. A, B and C show surface mineralisation structures can be followed down right to the outer core. This indicates that some mineralisation, heavy metals in particular, may have derived straight from the core. Inset D suggests structures from deep geology can be used to target surface mineralisation in the Yilgarn. The facility of EagleEye to define geological structure, at all scales, from geophysical and geographical data is new and gives a much needed, completely new dimension to exploration exploration targeting.

Speakers