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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Aug-2022 by Del Ferguson (DF)

Summary Help Help

NMI
Name BERT Mining Division Alberni
BCGS Map 092F003
Status Showing NTS Map 092F03W
Latitude 049º 02' 31'' UTM 10 (NAD 83)
Longitude 125º 26' 35'' Northing 5434994
Easting 321466
Commodities Copper Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Bert occurrence is located west of Draw Creek, approximately 900 metres southwest of the past producing Brynnor Mine (MINFILE 092F 001) and 14 kilometres northeast of Ucluelet, B.C.

The area is underlain by an assemblage of dioritic to quartz dioritic rocks of the pre- Westcoast Complex are the oldest rocks in the area. Volcanic and sedimentary rocks of the Upper Triassic Vancouver Group and volcanic rocks of the Lower Jurassic Bonanza Group also occur in the area. The youngest rocks are Tertiary volcanics and coeval quartz diorite to quartz monzonite of the Early to Middle Eocene Tofino Intrusive Suite (previously Catface Intrusions, Personal Communication - N. Massey, May 1990). Quartz diorite and granodiorite of the Early to Middle Jurassic Island Intrusions have also disrupted strata in the area.

Locally, sparse disseminations of pyrite, pyrrhotite, chalcopyrite, and arsenopyrite are exposed in a creek bed that follows a zone of weak shearing. A grab sample of sulphide-rich material assayed: gold, nil; silver, nil.

Eastwood (Bulletin 55, p. 61) describes the showing as occurring in a complex of "Older Porphyry" and diorite. The "Older Porphyry" occurs locally as dikes, sheets and small stocks. It consists typically of phenocrysts of white plagioclase, 1 to 5 millimetres across, in a dense dark-brown to black groundmass. More recent geological descriptions of the area assign these rocks to the Paleozoic-Mesozoic Westcoast Complex.

In 1984, Jasmine Resources completed a program of prospecting and geochemical sampling on the area as the Lakeview claim. During 1986 through 1988, Geo. P.C. Services Inc. completed programs of prospecting, geological mapping and geochemical sampling on the area as the Dom claim. During 1995 through 2009, Consolidated Logan Mines Limited and later Logan Resources Limited, completed programs of prospecting, geological mapping, geochemical sampling and an induced polarization survey on the Lucky and Redford properties.

In 2011, Logan Resources Ltd. and joint venture partner Ridgemont Iron Ore Corp. conducted ground geophysics (including Bert) and drilling over the Redford property. The 2011 Ridgemont diamond drill program, east of Draw Creek and the Brynnor Pit, consisted of 61 holes totalling 10, 234.58 metres utilizing 29 drill pads. The program coverage was categorized into three zones: the Main, East and North zones. The drill results from the East zone confirmed that magnetite mineralization was similar in strike and dip to that found in the Main zone.

Bibliography
EMPR AR 1962-111-122
EMPR BULL 55
EMPR FIELDWORK 1988, pp. 61-74
GSC MAP 17-1968; 1386A
GSC OF 463
GSC P 68-50; 72-44
Carson, D.J.T. (1968): Metallogenic Study of Vancouver Island with Emphasis on the Relationships of Mineral Deposits to Plutonic Rocks, Unpublished Ph.D. Thesis, Carleton University
PERS COMM (N. Massey, May 1990)

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