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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  24-Aug-1999 by Janet M. Riddell (JMR)

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NMI 092L8 Cu4
Name PORT, I, STAN, H & B, CDC Mining Division Nanaimo
BCGS Map 092L050
Status Showing NTS Map 092L08E
Latitude 050º 29' 41'' UTM 09 (NAD 83)
Longitude 126º 06' 35'' Northing 5597629
Easting 704988
Commodities Copper Deposit Types D03 : Volcanic redbed Cu
Tectonic Belt Insular Terrane Wrangell, Plutonic Rocks
Capsule Geology

The property is located 13 kilometres north-northwest of Kelsey Bay and 1.6 kilometres west of Port Neville at about 180 metres elevation. The property was worked on in the early 1900s indicated by old workings consisting of two adits and one shaft.

The Port Neville area lies at the boundary between the Coast Crystalline Belt and the Insular Tectonic Belt.

The area is underlain by Upper Triassic Vancouver Group, Karmutsen Formation basalt flows cut by numerous basic feeder dikes. Bodies of quartz-diorite, of unknown age assumed to belong to the Coast Plutonic Complex, occur in the northern part of the claims.

Mineralization occurs in massive and amygdaloidal basalts and consists of disseminated chalcopyrite, bornite and chalcocite in unaltered basalt, in amygdules in flow tops, and in small fractures. Better grades of mineralization are commonly accompanied by some increase in epidotization. Malachite staining is present.

The highest assay reported is from an iron-stained bluff between the upper and lower adits where chip samples over 6.3 metres assayed 1.69 per cent copper (Property File: K. Northcote; Assessment Report 4929, Map 2). Diamond drilling in 1970 returned 0.61 per cent copper over 4.0 metres and 0.88 per cent copper over 14.0 metres; both holes were lost while still in mineralization (Assessment Report 4929, page 1). The location of these holes is not known.

In 1970 Stanley Weston (Valdes Syndicate) held the property at which time two holes for 12 metres and 14 metres were diamond drilled. The property in 1972 consisted of I1 and I2, Stan 1 to 3, 87 to 90 and Port 3 to 22 claims. Work carried out included surface and underground workings mapped, a magnetometer survey covering the Port claims, and 91 cubic metres of trenching on I2 and Stan 3. In 1973 the claims held by S. Weston included I1 and I2, Port 3 to 22, Stan 1 to 3, and H & B 1 to 6. An induced polarization survey was carried out on I1 and I2. Work in 1974 included an induced polarization survey and surface diamond drilling of two holes, for 7.6 metres and 38 metres on I2.

Bibliography
EMPR ASS RPT 4178, 4895, 4929
EMPR EXPL 1975-G52
EMPR GEM 1972-292; 1973-260; 1974-214
EMPR PF (Copies of Assessment Report Maps; *Report by K. Northcote, 1975; various correspondence)
GSC MAP 4-1974; 1386A
GSC OF 9; 170; 463
GSC P 69-1A; 70-1A; 72-44; *74-8
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
EMPR PFD 12907, 12908, 12909, 12910, 12911

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