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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  27-Aug-2007 by Sarah Meredith-Jones (SMJ)

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NMI 092C14 Fe4
Name DOER, RC 4, POETT HEIGHTS, SARITA RIVER Mining Division Alberni
BCGS Map 092C085
Status Showing NTS Map 092C14E, 092C15W
Latitude 048º 53' 09'' UTM 10 (NAD 83)
Longitude 124º 59' 55'' Northing 5416690
Easting 353487
Commodities Iron, Copper, Zinc, Gold, Silver Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Doer showing is located 1.6 kilometres south of the mouth of the Sarita River on the northwest facing slope of Poett Heights. The Sarita River showings (092C 032) are just to the east. In the Sarita River area, exploration for iron is recorded in 1895 and activity apparently continued until 1922 during which time an adit was developed on the Numukamis Reserve No. 1.

The area is underlain by carbonate rocks of the Upper Triassic Quatsino Formation, Vancouver Group and volcanic rocks of the Lower Jurassic Bonanaza Group. These have been intruded by Early to Middle Jurassic Island Plutonic Suite granitic rocks. The structural trend is northwest with easterly dips.

Mineralization comprises massive magnetite, pyrrhotite, pyrite, arsenopyrite, chalcopyrite, sphalerite, malachite, azurite and possibly tetrahedrite with associated propylitic alteration consisting of epidote, chlorite and calcite. Mineralization occurs in skarns within Quatsino limestone and Bonanza tuffs related to the intrusive event and near the contact.

The highest assay result was from a sample (#8286) taken from the northwest corner of the Doer 3 claim which assayed 0.430 grams per tonne gold, 18 grams per tonne silver, 0.05 percent zinc, 0.002 percent lead and 1.35 per cent copper (Assessment Report 5472).

EMPR ASS RPT *5472, 7943, 9509, 18662
EMPR EXPL 1979-124
EMPR FIELDWORK 1989, pp. 503-510
EMPR GEM 1975-E94
EMPR OF 1988-24; RGS 24, 1990
EMPR PF (In 092C General File - Aeromagnetic Contour Map, Nitinat
Lake Area, Noranda Mines Ltd., date unknown)
GSC EC GEOL No. 3, Vol. 1, p. 191-198
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
Falconbridge File