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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  19-Jul-2018 by George Owsiacki (GO)

Summary Help Help

NMI 103P3 Mo4
Name LUCKY, TWIN, ALDER CREEK, LAVA LAKE, ALDER Mining Division Skeena
BCGS Map 103P005
Status Showing NTS Map 103P03E
Latitude 055º 02' 45'' UTM 09 (NAD 83)
Longitude 129º 01' 49'' Northing 6099890
Easting 498061
Commodities Molybdenum, Copper Deposit Types L05 : Porphyry Mo (Low F- type)
L04 : Porphyry Cu +/- Mo +/- Au
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks, Bowser Lake
Capsule Geology

The Lucky property is situated 60 kilometres north-northwest of the community of Terrace in west-central British Columbia. The claims comprising the property are between 0.5 and 4 kilometres west of Lava Lake and cover a south-facing slope above Alder Creek which flows easterly into Lava Lake.

The Lucky showing is underlain mainly by Middle Jurassic to Upper Cretaceous Bowser Lake Group argillaceous siltstones, sandstones, greywackes and lesser conglomerates. Granitic rocks of the Early Tertiary Coast Plutonic Complex which intrude the sedimentary rocks, are immediately south of, and parallel to Alder Creek. Other intrusions known on the property include northwest striking, dike and sill-like bodies of granodiorite porphyry which intrude hornfelsed Bowser Lake Group siltstones 1 kilometre north of the aforementioned Coast Plutonic Complex contact. These are exposed in several open cuts immediately east of a deeply incised, southwesterly flowing tributary of Alder Creek just below the point where the drainage abruptly takes on a northwest trend. The intrusions are described as being typical of the Alice Arm-type being a crowded porphyry with 1 to 2 millimetre euhedral phenocrysts of plagioclase making up 40 per cent of the rock by volume and set in a fine-grained matrix of quartz and minor K-feldspar. Original biotite and hornblende are altered to chlorite.

Molybdenite and lesser chalcopyrite and bornite occur in drusy quartz veinlets and hairline fractures best developed near the contacts between the intrusive rocks and hornfelsed siltstones. Quartz-banded gangue zones were found to cut earlier veins and dike contacts. Pyrite is widely disseminated in both the intrusion and hornfelsed sediments and a prominent gossan, visible from the Nass highway, is exposed in rocky bluffs extending westerly from the showings area for several hundred metres.

Molybdenum showings were originally staked as the Lucky property by local prospectors prior to 1971. Exploratory work during this time included hand trenching and sampling near a southerly flowing tributary of Alder Creek between elevations of 490 and 520 metres above sea level. The property was re-staked in the late 1970s when a limited prospecting and sampling program was carried out. The Alder and Alder 2 mineral claims were located in January and July of 2005 and were acquired by BCM Resources Corporation in mid-2005 and exploratory work was undertaken by this company in 2006 and 2007. Work included geological reconnaissance and the collection of one stream sediment and a number of rock samples for geochemical analysis. In 2009, BCM Resources conducted a geochemical sampling program consisting of 34 silt and 46 rock samples. In 2012, a work program was undertaken on behalf of BCM Resources Corporation and included revisions to a base map of the claims area that was prepared in 2009, and twelve rock samples were collected from the southern property area.

Bibliography
EMPR ASS RPT *6871, 28834, 29931, 31372, 33673
EMPR BULL 63; 64
EMPR EXPL 1978-E236
EMPR FIELDWORK 1988, pp. 233-240; 1990, pp. 235-243
EMPR GEM *1971-119
EMPR MAP 8
GSC MAP 1385A
GSC OF 864
PR REL BCM Resources Corp., Jan.4, 2010

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