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File Created: 07-Jan-1991 by Dorthe E. Jakobsen (DEJ)
Last Edit:  09-Jan-1991 by Dorthe E. Jakobsen (DEJ)

Summary Help Help

NMI
Name LORI Mining Division Victoria
BCGS Map 092C077
Status Showing NTS Map 092C15E
Latitude 048º 46' 04'' UTM 10 (NAD 83)
Longitude 124º 38' 06'' Northing 5402931
Easting 379859
Commodities Copper, Silver, Gold, Lead, Zinc Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Lori showing is located 65 kilometres due west of Duncan, 3.5 km northeast of Nitinat Lake. The area, between Jasper Creek and Campus Creek and 4 kilometres east from Nitinat River, was explored in 1971-72.

The area is underlain by Lower Jurassic Bonanza Group tuffs, breccias and flows ranging from andesite to rhyodacite overlying Quatsino Formation limestone and Karmutsen Formation volcanics, both of the Upper Triassic Vancouver Group. These are all intruded by quartz diorite of the Early to Middle Jurassic Island Plutonic Suite.

The property is underlain by strongly fractured and faulted light grey massive dacitic to andesitic crystal tuffs and flows, massive maroon volcanic breccia and grey coarsely porphyritic andesitic to dioritic dykes (?).

Narrow, silicified and strongly pyritized dacitic tuffs locally host disseminated pyrite and stringers of massive pyrite, chalco- pyrite, sphalerite and lesser galena. The alteration zones are characterized by a heavy iron stain and are generally 1 to 2 metres wide. One zone comprises a 15 centimetre band hosting stringers of massive pyrite and chalcopyrite with occasional coarse blebs of sphalerite and minor fine galena. Pyrite is concentrated in siliceous volcanic rocks in or near fault and shear structures.

A sample (#816A) of massive sulphide stringers in dacitic rocks at a contact zone, assayed 3.26 per cent copper, 0.40 per cent lead, 0.40 per cent zinc, 164.2 grams per tonne silver and 1.54 grams per tonne gold (Assessment Report 9579).

Bibliography
EMPR ASS RPT 2549, 3649, *9579
EMPR BULL 37
EMPR FIELDWORK 1986, pp. 223-229; 1987, pp. 81-91; 1988, pp. 61-74
EMPR OF 1987-2; 1988-24; 1989-6
GSC MAP 17-1968; 49-1963; 1386A
GSC MEM 13
GSC OF 463; *821; 1272
GSC P 68-50; 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 6191, 6192, 6193, 6194, 6195, 6196, 6197

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