lode
Sign in to savethumb|Gold-bearing quartz veins, [[Blue Ribbon Mine, Alaska]]
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- geology
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- Encyclopædia Britannica 11th edition
- partially coincident with
- hydrothermal mineral deposit
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thumb|Gold-bearing quartz veins, [[Blue Ribbon Mine, Alaska]]
In geology, a lode is a deposit of metalliferous ore that fills or is embedded in a fracture (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 17th century, being an expansion of an earlier sense of a "channel, watercourse" in Late Middle English, which in turn is from the 11th-century meaning of lode as a "course, way".
Excerpted from Wikipedia’s “lode” article, available under the CC BY-SA 4.0 licence.