Contact Deposits

Contact Deposits

 

deposits of minerals formed in the earth’s crust at the point of contact of hot magmatic rock with enclosing rock.

References in periodicals archive ?
Sudbury's original mining giants, Inco and Falconbridge - now the successor companies of Vale and Glencore, respectively - jumped on rich contact deposits of solid ore.
The processing costs are an average of the milling, smelting, refining and marketing costs for the nickel- rich contact deposits and the copper-platinum-palladium-gold-rich footwall deposits.
A 1% nickel cut-off grade over an eight foot minimum true width was used to estimate resources for the contact deposits and a 0.
For example, layered intrusions are subdivided into stratiform and contact deposits, with the stratiform deposits further subdivided into chromite and sulphide-associated deposits.
Transitions of orebody morphology and mineralogy, and alteration zoning can be used in exploration to trace mantos into chimneys, sulphides into skarn, or skarn into stock contact deposits.
The location and the high-grade Ni and Cu values with significant Pt-Pd-Au are typical of Transitional Deposit styles of mineralization in Sudbury and may represent a transition from the nickel-dominant Levack Contact Deposits to the Cu-Pt-Pd-Au dominant Levack Footwall Deposit.
Transitions of orebody morphology and mineralogy and alteration zoning can be used in exploration to trace mantos into chimneys, sulphides into skarn or skarn into stock contact deposits.
Like most Sudbury Basin footwall environments situated behind large nickel contact deposits, this area has excellent potential for high-grade, copper-nickel-platinum-palladium-gold footwall deposits similar to the high-grade copper-nickel-platinum-palladium-gold footwall mineralization recently discovered by FNX behind its Levack Mine and similar to typical Sudbury Basin footwall deposits (e.
at December 31, 2004) Tons Ni Cu Pt Pd Au TPM Category (million) % oz/ton Probable Contact Deposits 1.
4 million 2005 Exploration Budget will be allocated to explore for copper-platinum-palladium-gold ("Cu-Pt-Pd-Au") deposits in the prospective footwall environments behind the SJV's Levack/McCreedy West Mine Complex located in the Sudbury District, Ontario and to explore for similar Cu-Pt-Pd-Au footwall deposits and nickel ("Ni") contact deposits at the SJV's Podolsky Property.
The processing costs are an average of the milling, smelting, refining and marketing costs for the nickel-rich contact deposits and the copper-platinum-palladium-gold-rich footwall deposits.
The zone is regarded as typical of Transitional Deposit styles of mineralization in Sudbury and may represent a transition from the nickel-dominant Levack Contact Deposits to the Cu-Pt-Pd-Au dominant Levack Footwall Deposit.