Shows mining when any ore body lies at a considerable distance below the surface.
The specific mining method selected depends upon the size, shape and orientation of the ore body and the depth involved.
For investigation of geographical and geological features.
Eight landform models join to form a continuous model showing the mountains, lakes, rivers, deserts, glaciers, coastlines, cayons and cultural point, with lesson plan, size 90 x 90 cm.
Shows coastal and mountain terrain in natural colour relief & cross section diagram of the substance of a typical volcano.
Complete with lesson plan, size 60 x 45 cm
For cutting solid cylindrical soil sample.
Steel tube with cutting edges at lower end.
An engraved index line ensures consistent volume of sample with tommy bar, size 500 x 50 mm
Open pit mining often results in a large hole or pit being formed in the process of extracting a mineral.
Deposits mined by open pit techniques are generally divided into horizontal layers called benches.
The thickness of the benches depends on the type of deposit & the mineral being mined.
Mining is generally conducted on a number of levels at any one time.
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