Eldorado Copper Mine (Coe Iron mine; Moore Iron mine), Madoc Township, Centre Hastings Municipality, Hastings County, Ontario, Canadai

Regional Level Types
Eldorado Copper Mine (Coe Iron mine; Moore Iron mine)	Mine
Madoc Township	Township
Centre Hastings Municipality	Municipality
Hastings County	County
Ontario	Province
Canada	Country

PRIVATE PROPERTY NO TRESPASSING

GEOLOGY: (Malczak,J.et. al.(1985)
"Base Metal, Molybdenum and Precious Metal Deposits of the Madoc-Sharbot Lake Area. Southeastern Ontario. Ontario Geological Survey, Open File Report 5548) at the contact with a very small granitic intrusion related to the Deloro granite. Host rocks at the deposit strike east-west and dip steeply to the north. Carter described the host rock as a white, massive, aphanitic dolomitic marble. Weathered surfaces are reddish brown and the rock contains numerous quartz veins with minor ankerite and pyrite. Carter described the intrusion as a pink, fine-grained granite and the contact zone at the north end of the deposit as a massive magnetite-talccarbonate skarn.
Mineralization: This deposit was originally mined for hematite under the name of the Coe Iron Mine.
Corkhill (1906, p.90) states:
"This mine which originally opened for iron, but which has for the last couple of years been worked for copper... The ore is chalcopyrite and was found at a depth of 75 feet displacing the hematite, which constituted the ore body to this depth. Some very fine he ore. The north or hanging wall of the ore body is granite, and the south or foot wall crystalline limestone. The ore body runs east and west in a wide open fissure in the contact between the granite and limestone...The ore body, which occurs as a shoot, dips to the northeast."
In the next report, Corkhill (1907, p.76) states: "...At a depth of 75 feet the vertical shaft was discontinued and all mining has since been confined to sinking on the ore body. The ore body occurs in a shoot
about 36 feet in length by 7 to 10 feet in width."

DEVELOPMENT HISTORY (Malczak,J.et. al.1985)
Base Metal, Molybdenum and Precious Metal Deposits of the Madoc-Sharbot Lake Area. Southeastern Ontario. Ontario Geological Survey, Open File Report 5548) 1901-1903: The Coe or Moore iron mine was opened. Hematite ore was mined from an open pit to a depth of 75 feet.
1903-1906: The deposit was renamed the Eldorado Copper Mine and copper ore was mined from the deposit from a shaft below the 75 foot level of the pit.
1906: The shaft was abandoned and ore was extracted from an open cut to a depth of 300 feet. The Medina Gold Mining Company erected a copper smelter on the property.
1907: The Eldorado Copper Mine was owned by the Ontario Copper Company. Mining activities ceased in this year.
1956: Picton Uranium Mines Limited dewatered the shaft and re-examined the deposit.

"The first copper smelter in eastern Ontario was blown in at this property on June 25th, 1906. The furnace is south of the mine on the side of the hill which furnishes ample ground for slag dump, and is so situated that the swinging arm derrick used for hoisting ore from the mine dumps the ore at the door leading to the charging floor.
The furnace has a capacity of about 50 tons per day." ( ONTARIO BUREAU OF MINES Report 1906, VOL. XV PART I p.90)

Other Regions, Features and Areas containing this locality

References