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File Created: 23-Nov-1990 by Dorthe E. Jakobsen (DEJ)
Last Edit:  31-May-2013 by Karl A. Flower (KAF)

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NMI
Name CHERYL, RIA, SPEARS, WHYMP, WHYMPER Mining Division Victoria
BCGS Map 092C100
Status Showing NTS Map 092C16E
Latitude 048º 56' 10'' UTM 10 (NAD 83)
Longitude 124º 11' 24'' Northing 5421036
Easting 412850
Commodities Copper Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Cheryl occurrence is located 30 kilometres southwest of Nanaimo at the headwaters of Chemainus River on Mount Whymper.

The area, within the Cowichan uplift, is underlain by Mississippian to Pennsylvannian Fourth Lake Formation (Buttle Lake Group) sediments and Upper Triassic Karmutsen Formation (Vancouver Group) volcanic rocks whcih have been intruded by dioritic to granodioritic rocks of the Early to Middle Jurassic Island Plutonic Suite.

Outcrops on the claim host pyrite and chalcopyrite mineralization. Magnetite was observed in silt samples. A silicified chert and turbidite outcrop (OC4), hosts a quartz vein 1.5 metres long and up to 0.3 metres wide. Mineralization increases close to the vein but it appears that the wallrock contains more mineralization than the vein. Small shear zones with limonitic staining were also noted.

In 1981, New Gold Inc. completed a program of geological mapping and prospecting in the area as the Sherk and Widow claims. In 1984 and 1985, Imperial Metals Corp. completed programs of soil sampling and a ground electromagnetic survey on the area as the Whymp 1-2 claims. In 1988, the area was prospected and rock sampled as the Cheryl claim. A sample of outcrop (RS-15) containing 5 to 10 per cent pyrite and 3 to 5 per cent chalcopyrite assayed 0.14 grams per tonne gold and 9.6 grams per tonne silver (Assessment Report 18598).

In 1990 and 1994, New Gold Inc. completed programs of geological mapping and a ground geophysical surveys on the area as the Widow 3-8 claims. In 2008, Cuda Capital Corp. completed a program of helicopter-borne magnetic and VTEM surveys on the area as apart of the El Capitan Property.

Bibliography
EMPR ASS RPT 13333, 14792, *18598, 20091, 23363, 30440
EMPR BULL 37
EMPR FIELDWORK 1986, pp. 223-229; 1987, pp. 81-91; 1988, pp. 61-74
EMPR MP MAP 1992-2
EMPR OF *1987-2; 1988-24; 1989-6
EMPR PF (In General File: B.C. Forest Products Road Map, Cowichan
Lake Area, 1963)
GSC MAP 17-1968; 49-1963; 1386A
GSC MEM 13
GSC OF 463; 821; 1272
GSC P 72-44; 76-1A; 79-30
Carson, D.J.T. (1968): Metallogenic study of Vancouver Island with
emphasis on the relationships of mineral deposits to plutonic
rocks, Ph.D. Thesis, Carleton University
EMPR PFD 672028, 895234, 895235

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