Costeaning is the process by which miners seek to discover metallic
lode
In geology, a lode is a deposit of metalliferous ore that fills or is embedded in a fissure (or crack) in a rock formation or a vein of ore that is deposited or embedded between layers of rock.
The current meaning (ore vein) dates from the 1 ...
s. It consists in sinking small pits through the superficial deposits to the solid rock, and then driving from one pit to another across the direction of the
vein
Veins are blood vessels in humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenat ...
, in such manner as to cross all the veins between the two pits.
Surface mining
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