For an explanation, see the main splats page
SPLATS about economic geology
The principles of economic geology
- Minerals may be detected in many ways, and in the past, mainly involved surface prospecting to look for indications of what lay below the surface.
- Minerals may be identified by some of streak test, cleavage, lustre, hardness, fracture, specific gravity, fluorescence, radioactivity, or reaction to acid.
- Information about what lies below the surface comes from magnetic and gravitational anomalies, seismology data and careful geological mapping of the surface.
- Modern prospecting relies largely on gathering data about subsurface structures and then drilling test holes at the most likely sites to get samples.
- In 1625, gunpowder was first used in a mine in Chemnitz, Germany, as a way of breaking up rock and ore, so it could be hauled out of the mine and processed.
- When geologists work out how a particular geological system originally formed, then they are able to predict where valuable minerals might be found.
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