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File Created: 22-Mar-2021 by Karl A. Flower (KAF)
Last Edit:  01-Apr-2021 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name ELBOW, LATER, PINNACLE REEF Mining Division Omineca
BCGS Map 093N026
Status Prospect NTS Map 093N07W
Latitude 055º 17' 55'' UTM 10 (NAD 83)
Longitude 124º 51' 29'' Northing 6129594
Easting 382035
Commodities Gold, Copper, Silver Deposit Types L : PORPHYRY
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Elbow occurrence is located at an elevation of approximately 1100 metres near a minor un-named east-flowing tributary of the Kwanika River, approximately 7.5 kilometres southwest of the south end of Klawli Lake.

Regionally, the area is underlain by undivided volcanic rocks of the Lower Jurassic Chuchi Lake succession (Takla Group) and quartz monzonitic to monzogranitic intrusive rocks of the Lower Jurassic Hogem Plutonic Suite and gabbroic to dioritic intrusive rocks of the Middle Jurassic Aplite Creek Plutonic Suite, which may be related to the Hogem Plutonic Suite.

Locally, diamond drilling, in 2015 and 2016, encountered sporadic chalcopyrite mineralization associated with quartz-carbonate veining and propylitic (chlorite-epidote-pyrite) ± phyllic (silica-sericite+/-biotite) ± weak potassic alteration in andesitic volcanic rocks comprising heterolithic breccias and massive flows cut by hypabyssal feldspar porphyry dikes and aplite dikes.

In 2015. Diamond drilling at the Elbow target area intersected 94 metres grading 0.34 gram per tonne gold in hole DD15ELB001 with sporadic anomalous copper values that were associated with quartz-carbonate veining and quartz-sericite-pyrite alteration overprinting early biotite alteration and 2.28 grams per tonne gold over a 2.0-metre section of biotite-epidote–altered amygdaloidal andesite in hole DD15ELB004, located approximately 850 metres northwest of the previous hole (Assessment Report 35824). Anomalous molybdenum and rhenium values were also reported.

Another drillhole (DD15ELB002) located approximately 700 metres south-southwest of the first hole, intercepted several sporadic pyrite-chalcopyrite-galena ± sphalerite veins with moderate amounts of disseminated magnetite in altered andesitic to trachytic volcanic rocks and an altered monzonite with lesser syenite cut by dikes of various compositions. This hole was not assayed.

Drilling highlights, in 2016, included 103.6 metres (194.2 to 297.8 metres down hole) grading 0.013 per cent copper, 0.8 gram per tonne silver and 0.136 gram per tonne gold in hole DD16ELB005; 51.8 metres (23.5 to 75.3 metres down hole) grading 0.017 per cent copper, 1.3 grams per tonne silver and 0.237 gram per tonne gold in hole DD16ELB006 and 41.3 metres (18.7 to 60.0 metres down hole) grading 0.009 per cent copper, 1.6 grams per tonne silver and 0.415 gram per tonne gold, including 0.015 per cent copper, 3.5 grams per tonne silver and 1.34 grams per tonne gold over 9.1 metres in hole DD16ELB007 (Assessment Report 37380). The drillholes were located approximately 400 to 800 metres southeast of the 2015 drillholes and intersected outer propylitic alteration assemblages and localized phyllic-altered zones with disseminated pyrite, averaging approximately 3 per cent, in plagioclase lath phyric and crystal-rich augite phyric latite flows with andesitic interflows. Anomalous molybdenum and rubidium values were also reported.

Work History

The area has been explored in conjunction with the nearby Aplite Creek (MINFILE 093N 085) occurrence and a complete exploration history can be found there.

Bibliography
EMPR ASS RPT 29339, 30053, 34717, 35327, 35406, *35824, 36603, *37380
EMPR FIELDWORK 1990, pp. 89-110; 1991, pp. 103-118; *1992, pp. 87-107
EMPR GEM 1970-181, 1972-449
EMPR OF 1991-3; 1992-4; *1993-3
GSC MAP 876A; 907A; 971A; 1424A; 1586G
GSC MEM 252
GSC OF 2842
GSC P 41-5; 42-2; 45-9

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