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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  30-May-2022 by Karl A. Flower (KAF)

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NMI 092L2 Cu1
BCGS Map 092L006
Status Developed Prospect NTS Map 092L02W
Latitude 050º 01' 54'' UTM 09 (NAD 83)
Longitude 126º 48' 45'' Northing 5544444
Easting 656662
Commodities Copper, Silver Deposit Types L04 : Porphyry Cu +/- Mo +/- Au
K01 : Cu skarn
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Fern Hill (Uebell) occurrence is located on a northwest facing slope, south of the Zeballos River and between Spud and Goldvalley creeks.

The area lies within Lower Jurassic Bonanza Group volcanic rocks and sediments overlying Quatsino Formation limestone and Karmutsen Formation tholeiitic basalts both of the Upper Triassic Vancouver Group. These have been intruded by Jurassic Island Intrusions granodiorite and Eocene Catface Intrusions quartz diorite.

At the occurrence, quartz diorite breccia consisting of fragments of Bonanza Group volcanic rocks and quartz diorite are cemented together with quartz diorite. A north striking, vertically dipping calc-silicate band of the Bonanza Group forms the western intrusive contact near the area of mineralization.

Mineralization consists of chalcopyrite, pyrite and pyrrhotite concentrated in quartz-diorite breccia within 8 metres from a 8 to 15 metre wide barren quartz diorite dyke. The mineralization persists over a zone 120 metres long and 53 to 61 metres deep, as indicated by drilling.

The mineralized area, separated into the A zone and the B zone, contains drill-indicated reserves of 87,988 tonnes of 1.98 per cent copper and 58,054 tonnes of 2.02 per cent copper respectively (Northern Miner - March 29, 1962).

An 8-metre adit was drifted on a 10-centimetre quartz vein in quartz diorite, 120 metres southeast of the copper mineralization. The vein contains blebs of chalcopyrite.

In 1971, New Privateer Mines Ltd. drilled 5 holes, totalling 293 metres in an area about 120 metres south of the copper mineralization. A 2-metre intersection assayed 1.8 per cent copper and 13.7 grams per tonne silver (Siega, 1972).

In 2005, Newmex Minerals Inc. prospected the area as part of the regionally extensive Zeballos property.

EM EXPL 2001-23-31
EMPR AR 1961-100; 1964-154; 1967-74
EMPR ASS RPT *309, 27939
EMPR BULL 20, Part V; p. *27
EMPR FIELDWORK 1982, p. 290; 1983, p. 219
EMPR PF (*Siega, L.J. (1972): Geological Report Zeballos Area, New Privateer Mines Ltd.)
EMR CORPFILE (New Privateer Mine Ltd.; New Privateer Mines, 1973 Prospectus, L.J. Siega, Addendum to Geology Report)
EMR MIN BULL MR 223 B.C. 173
GSC MAP 4-1974; 255A; 1028A, 1552A
GSC MEM 204; 272
GSC OF 9; 170; 463
GSC P 38-5; 40-12; 69-1A; 70-1A; 72-44; 74-8; 79-30
GSC SUM RPT 1929, Part A; 1932, Part A II
CIM TRANS Vol. 42, 1939, pp. 225-237; 1948, pp. 78-85; 72, pp. 116-125
N MINER Apr. 1938, pp. 39-45; Mar. 29, 1962
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa
Stevenson, J.S. (1938): Lode Gold Deposits of the Zeballos Area
EMPR PFD 12546, 676609