Mine detail: Cornwall Mine

Previously called 'Cornwall East and Open PitCornwall Iron-Cobalt Deposit'

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Location

Lat / long: 46.26942, -76.40294

Resource(B)

Primary: Iron, Cobalt
Secondary: Copper, Gold, Sulfur, Silver
Ore: Magnetite, Pyrite, Chalcopyrite
Gangue: Diopside, Phlogopite, Garnet, Actinolite, Chlorite, Talc, Serpentine

Production

Operation type: Unknown
Deposit type: Contact Metamorphic
Production size: Yes
Development status: Past Producer

Geology

Host rock:Buffalo Springs Formation
Host type:Carbonate
Associated rock:Mill Hill Slate, Blue Conglomerate, York Haven Diabase Sheet
Associated type:Hornfels,Diabase
Tectonic:Interior Basin
Alteration processes:Potassium Metasomatism

References

MRDSW006887
DEP10069387
Reference{Deposit:: BILBREY, J. H., 1962, COBALT, A MATERIALS SURVEY: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8130, P. 2, 26 AND 27.}{Deposit:: VHAY, J.S., BROBST, DONALD A., AND HEYL, A. V., 1973, COBALT: (CHAPTER IN) U.S. MINERAL RESOURCES, U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 820, P. 145.}{Deposit:: LAPHAM, D.M., 1968, TRIASSIC MAGNETITE AND DIABASE AT CORNWALL, PENNSYLVANIA: IN RIDGE, J.D., ED., ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOLUME) V. 1: AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, P. 72-94.}{Deposit:: ROSE, A.W. AND SMITH, R.C., II, 2001, MAGNETITE-CU SKARNS FORMED BY NON-MAGMATIC (?) FLUIDS AT CORNWALL, PA AND VICINITY [ABSTRACT]: GEOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING; PAPER NO. 2-O.}{Geology:: GRAY, C., GEYER, A.R., AND MCLAUGHLIN, D.B., 1958, RICHLAND QUADRANGLE: PENNSYLVANIA GEOLOGICAL SURVEY, 4TH SERIES, GEOLOGICAL ATLAS OF PENNSYLVANIA, ATLAS 167D, 1:24,000.}
ReporterShaffer, Glenn L., Whitlow, S., Woodruff, Laurel G.