Plant Anomalies Related to Some British Columbia Ore Deposits

CIM Bulletin1950
The value of anomalous metal contents of trees as an aid to the discovery of mineral deposits was tested under field conditions cm four known ore deposits. Results indicate that a base-metal deposit, or any deposit containing zinc or copper, casts a 'metal shadow' into the overlying soil which remains approximately positioned above the deposit, regardless of the type of overburden or the movement of groundwater.
Keywords: carbon tetrachloride, copper, ore, overburden, zinc, Deposits, metals, Plants, test, Tests, Value, zinc
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