Mine surveys and extraction types

• Methods of mineral extraction:

  • Open Cast Mining
  • Deep Shaft Mining
  • Dredging - mineral deposits underwater

  Only one method can be used in a area, so they could not be exchanged and swapped around
• Mineral survey techniques:

  • Magnetometry
  • Seismic survey
  • Infrared Spectroscopy
  • Sample drilling
• Magnetometry

  Locates magnetic mineral (iron)

  Measures size
• Seismic Survey

  Vibrations or soundwaves played directly into the ground, as they are refracted back the depth and shape of the deposit can be measured
• Infrared Spectroscopy

  Minerals are exposed to infrared and reradiation is analysed, to know the type of mineral
• Sample drilling

  Chemical analysis shows the type and purity of mineral