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File Created: 23-Jan-2014 by Karl A. Flower (KAF)
Last Edit:  24-Jun-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name BOB 3 Mining Division Alberni, Nanaimo
BCGS Map 092L027
Status Showing NTS Map 092L07E
Latitude 050º 17' 55'' UTM 09 (NAD 83)
Longitude 126º 44' 52'' Northing 5574259
Easting 660401
Commodities Magnetite, Iron, Copper Deposit Types K : SKARN
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Bob 3 occurrence is located southwest of White Fang Lake.

The area is underlain by Upper Triassic Karmutsen Formation (Vancouver Group) skarned limestone that occurs as thin layers or lenses within a sequence of pillow lavas, basalts, breccia and minor tuff. The volcanic rocks have been intruded by the Jurassic Nimpkish batholith, which is part of the Early to Middle Jurassic Island Plutonic Suite. Mafic and felsic dikes cut all rock types.

Mineralization in the area occurs intermittently over 2.5 kilometres along the northwest striking hornblende–quartz diorite contact (the Bonanza mine (MINFILE 092L 164), and the Bob 21 (MINFILE 092L 134), Bob 17 (MINFILE 092L 337) and White Fang (MINFILE 092L 255) occurrences).

Locally, garnet skarn, plus or minus pyroxene, epidote, actinolite, quartz, chlorite and calcite host massive magnetite and disseminated pyrite and chalcopyrite.

In 1973, diamond drill hole 74-5 intersected garnetite skarn consisting of massive andradite over 22.5 metres with “good magnetite and heavy sulphides” over 7.8 metres. Another drill hole (74-4) intersected garnetite skarn with minor pyrite and trace chalcopyrite over 63.75 metres (Assessment Report 5394).

In 1993, an outcrop chip sample (24465) yielded 1.803 per cent copper over 1.6 metres (Assessment Report 23551).

In 2017, three rock samples (J-1 through J-3) taken from the occurrence area yielded from 1.59 to 7.61 per cent copper with 29.01 to 54.16 per cent iron (Assessment Report 37313).

Work History

In 1966, Cominco completed a program of geological mapping and a ground magnetometer survey on the area as the Bob claims. During 1971 through 1977, Imperial Oil completed programs of line cutting, geological mapping, soil sampling and ground geophysical surveys on the area as part of the Hab and Bob claims. In 1973, two diamond drill holes, totalling 102.6 metres, were completed. In 1993 and 1994, Braddick Resources completed programs of geochemical sampling, geological mapping and ground geophysical surveys on the area as the Bon and Bonz 1-2 claims. In 2012, Homegold Resources completed programs of rock and soil sampling and a ground magnetometer survey on the area as the Bonanza River property. In 2013, Jinhua Capital Corp. prospected the Steele Creek property. Also at this time, Homegold Resources Ltd. completed an air photo geological interpretation program on the area. In 2017, Homegold Resources Ltd. completed a minor program of prospecting and rock sampling on the area as the White Fang property.

Bibliography
EMPR AR 1967-71; 1968-100
EMPR GEM 1970-274; 1972-290; 1973-258; *1976-E128; 1977-E173
EMPR PF (McDougal, J.J., (1961): Report on Bonanza Lake Copper, Falconbridge Ltd. in Bonanza Mine-092L 164)
GSC BULL 242
GSC OF 9; 170; 463
GSC ANN RPT 1886
GSC SUM RPT 1929A; 1931A
GSC MEM 272
GSC P 38-2; 38-3; 72-44; *74-8
GSC MAP 4-1974; 255A; 1029A; 1552A
CJES 18, p. 1; 20, p. 2, 1983
EMR MP CORPFILE (Imperial Oil Ltd.)
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.
Sangster, D.F. (1964) The Contact Metasomatic Magnetite Deposits of Southwestern B.C., Ph.D. Thesis, University of B.C.
Falconbridge File
EMPR PFD 650201, 650203

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