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File Created: 29-Nov-1996 by Keith J. Mountjoy (KJM)
Last Edit:  01-Jan-0001 by BC Geological Survey (BCGS)

Summary Help Help

NMI
Name IXL-ELLEN, IXL (L.2972), ELLEN (L.2974) Mining Division Osoyoos
BCGS Map 082E012
Status Showing NTS Map 082E04E
Latitude 049º 06' 26'' UTM 11 (NAD 83)
Longitude 119º 41' 44'' Northing 5442875
Easting 303274
Commodities Gold, Silver, Copper Deposit Types I06 : Cu+/-Ag quartz veins
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Okanagan, Plutonic Rocks
Capsule Geology

The IXL-Ellen showing is located at about 1150 metres elevation on the western slopes of Mount Kobau on the northwest banks of Mak Siccar Brook, 500 metres northwest of the Mak Siccar occurrence (082ESW004).

The showing was located during reconnaissance mapping in 1990 by Azimuth Geological Inc. and consists of an outcrop and an abandoned adit.

Regionally, the IXL-Ellen showing is hosted by polydeformed regionally metamorphosed sedimentary and volcanic rocks of the Carboniferous to Permian Kobau Group. The aereal distribution of Kobau Group rocks is restricted by the Similkameen River to the west and the Okanagan fault to the east. Intruding these rocks are small granodiorite plugs of the Middle Jurassic Similkameen intrusion, lying along the Manery Creek fault. A pluton of the Similkameen intrusion is located 1.5 kilometres to the southwest. Post-Middle Jurassic pyroxenite is also found at the Mak Siccar deposit.

The Kobau Group rocks have been subdivided into up to nine units. However, these generally consist of chlorite schist, foliated greenstone and lesser quartz sericite schist. The Kobau Group rocks have a northwest trending schistosity as well as a major northwest trending fold axis. Shears cut these rocks in three directions: north-south on the eastern portion of the property, and northeast and northwest to the west.

A 0.5-metre wide limonitic quartz vein is exposed in outcrop and a 5-metre adit at the IXL-Ellen showing. The vein width is irregular and steeply dipping, crosscutting foliated greenstone. Ten metres southeast of this adit, a 1-metre wide shear zone hosts 1 to 20 centimetre wide quartz and minor carbonate stringers. The shear, striking 210 degrees and dipping 55 to 65 degrees northwest, runs subparallel to the local foliation and is exposed for 25 metres. Pyrite and chalcopyrite are sporadically disseminated in these stringers.

Select samples yielded significant gold, silver and copper values. Grab sample 105907 was taken from quartz stringers with pyrite and chalcopyrite. Geochemical analysis yielded 85.3 grams per tonne gold and 38.9 grams per tonne gold (Assessment Report 20638). Sample 105908 was taken from adit dump material consisting of limonitic quartz that yielded 0.20 gram per tonne gold and 1.7 grams per tonne silver (Assessment Report 20638). A third sample, 105910, yielded 0.06 gram per tonne gold, 8.2 grams per tonne silver and 0.29 per cent copper (Assessment Report 20638). The sample was taken from a 20-centimetre wide quartz vein with pyrite and chalcopyrite.

Bibliography
EMPR AR 1904-225,299; 1907-220; 1927-238; 1928-260; 1929-268; 1930-219; 1931-136; 1933-166; 1934-A25,D15; 1935-A25,D13,G47; 1938-A35; 1939-37; 1966-190
EMPR ASS RPT 8996, 15920, 20115, *20638
EMPR EXPL 1987, pp. B7-15
EMPR FIELDWORK 1983; 1988, pp. 19-25; 355-363
EMPR OF 1989-5
EMPR MR MAP 7 (1934)
GSC MAP 538A; 539A; 37-21; 15-1961; 1736A
GSC MEM 79; 179, pp. 20-26
GSC OF 481; 637; 1505A; 1565; 1969
GSC P 37-21
CIM Vol. 61, pp. 1326-1334
CJES Vol. 10, p. 1508
GSA Special Paper 218, pp. 55-91
Okulitch, A.V. (1969): Geology of Mount Kobau, unpublished Ph.D. Thesis, University of British Columbia, 141 pp.

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