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Fossick

A prospecting terms used to describe the evaluation of previous activity through the dumps and tailings of a mineral deposits past operators

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Float

Rocks and minerals loosened and transported from their origin through natural forces

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Formation drilling

Holes drilled in a sequence which allow the geological characteristics, constituents and patterns of the underlying rock to be determined

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Fission

The release of a particles energy by having its atomic nucleus split into 2 or more lighter nuclei, induced by collision with other particles

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Foreland

 A stable area less prone to movement than the surrounding, less stable rock which become overfolded or thrust out onto it. The foreland is usually at the edge of a craton or continental part of the Earth’s crust. Foreland is also considered to be the area where a port is situated, in this context the opposite of foreland is hinterland

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Fissility

The tendency for certain rocks and minerals to split apart into thin layers

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Footwall

The host rock on the underside of mineral deposit, not usually containing target minerals