The Mesozoic Era occurred between 245-65 million years ago and is comprised of the Triassic, Jurassic, and Cretaceous periods
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Category: <span>M</span>
A geophysical survey that measures the intensity of an areas magnetic field
A shiny silver coloured liquid metal at room temperature. Symbol Hg. Mercury is extremely toxic and can be lethal in high human concentrations
A measure of an objects attraction to a magnet
An initial refinement of ore produced at a smelter, usually a mix of metal and sulphur, ideal for transportation but requiring further refinement.
A term synonymous with host rock, country rock and gangue rock. The non-target rock surrounding the target mineral
The characteristic reflection of spectral energy from an object
A measure of electric voltage, one-thousandth of a volt
Ore with sufficient values and characteristics to be capable of mechanically milled
A plant where ore is processed in preparation for smelting