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File Created: 29-Apr-2015 by Paul Schiarizza (PSC)
Last Edit:  21-May-2020 by George Owsiacki (GO)

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NMI
Name BLUERIDGE, DANEVA Mining Division Liard
BCGS Map 104I017
Status Showing NTS Map 104I02E
Latitude 058º 11' 37'' UTM 09 (NAD 83)
Longitude 128º 37' 13'' Northing 6450317
Easting 522321
Commodities Copper, Lead, Silver, Antimony, Zinc, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Overlap Assemblage, Cache Creek, Stikine
Capsule Geology

The Blueridge occurrence is located within the Omineca Mountains, 87 kilometres southeast of Dease Lake and 7.4 kilometres west of Kutcho Creek. It occurs near the east end of the King Salmon allochthon, a narrow structural/stratigraphic belt that separates the main exposures of the oceanic Cache Creek terrane to the north from those of the Stikine arc terrane to the south. The allochthon is bounded by the Nahlin and King Salmon faults, which are interpreted as northerly dipping thrust faults that were active in early Middle Jurassic time.

The King Salmon allochthon consists mainly of Mesozoic rocks of the Whitehorse Trough, including clastic metasedimentary rocks of the Lower to Middle Jurassic Inklin Formation (Laberge Group) and, locally, underlying Upper Triassic limestone of the Sinwa Formation (Stuhini Group). Older rocks, exposed locally within the allochthon where they form the basement to the Whitehorse Trough, include the upper Permian-Middle Triassic Kutcho assemblage and the Paleozoic-Mesozoic Cache Creek Complex.

The Blueridge showing comprises a zone of variably oriented quartz veins, only some of which are mineralized, that are scattered over a strike length of several hundred metres on the south limb of a west-plunging anticline. The intervening area probably hosts similar mineralization but bedrock is not exposed. Most veins are in limestone of the Sinwa Formation, but mineralized veins also occur in a large patch of coarse crystalline calcite within the underlying Inklin Formation. The mineralized quartz veins contain small pockets of fine-grained sulphides, mainly pyrite, chalcocite and galena, accompanied by malachite and azurite. These mineralized veins are identical to those hosted by the Sinwa Formation at the Ridgecrest showing (104I 052) located 2000 metres to the east.

In 2011, a grab sample (11PSC-467, Table 1) of mineralized vein material from the Blueridge showing assayed 6222.8 parts per million (ppm) (0.62 per cent) copper, greater than 10,000 ppm (1.0 per cent) lead, 806 ppm (0.08 per cent) zinc, greater than 100 ppm (100 grams per tonne) silver, 128.7 parts per billion gold, and greater than 2000 ppm (0.2 per cent) antimony (Fieldwork 2011, page 95).

In 2016, a rock sample (Sample 1) of milky white quartz vein with clots of malachite and azurite and possible sulphide minerals assayed 1.933 per cent copper, 840 grams per tonne silver, 1.003 per cent antimony, 5797 ppm (0.57 per cent) lead, and 2236 ppm (0.22 per cent) zinc (Assessment Report 37071).

Small pits and tunnels attest to past exploration of the Blueridge mineralization, but no work was ever filed for assessment purposes. Old claim posts in the vicinity of the workings are dated 1966 (Fieldwork 2011, page 95).

In 2016, on behalf of Jedway Enterprises Ltd., two days were spent prospecting on the DanEva property which covers the Blueridge and Ridgecrest (104I 052) occurrences. A total of five rock samples were taken of mineralization at the Blueridge and Ridgecrest showings.

Bibliography
EMPR FIELDWORK *2011, pp. 75-98
EMPR ASS RPT *37071
EMPR OF 1996-11
GSC MAP 9-1957; 29-1962; 1418A; 1712A
GSC OF 610; 2262; 2779
GSC P *68-1A, p. 27; 78-1A, pp. 25-27
GSC BULL 504

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