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File Created: 29-Jan-1988 by Larry Jones (LDJ)
Last Edit:  30-Nov-1996 by Keith J. Mountjoy (KJM)

Summary Help Help

NMI
Name KALEDEN Mining Division Osoyoos
BCGS Map 082E032
Status Showing NTS Map 082E05E
Latitude 049º 22' 30'' UTM 11 (NAD 83)
Longitude 119º 37' 34'' Northing 5472461
Easting 309376
Commodities Uranium Deposit Types B08 : Surficial U
Tectonic Belt Intermontane Terrane Overlap Assemblage, Okanagan
Capsule Geology

The Kaleden young uranium occurrence lies about 2.75 kilometres west of Kaleden, British Columbia. This occurrence lies near the northwest end of a 2 kilometre northwest trending area of erratic uranium and thorium occurrences. Uranium in sediments has been examined at the showing by one augerhole.

Regionally, the area is principally underlain by an assemblage of Eocene volcanics and sediments of Penticton Group. At the base of this assemblage, the Eocene Kettle River Formation consists of granite boulder conglomerate, arkose, volcanic wacke and rhyolite breccia. Volcanics of the Springbrook and Marron formations overlie the Kettle Creek Formation. To the south and north, these Eocene volcanics and sediments unconformably overlie medium grained intrusive rocks of the Cretaceous Okanagan batholith and Nelson plutonic suite, which to the south cuts Carboniferous to Permian Kobau Group metasedimentary rocks. The Okanagan batholith consists primarily of biotite granite and granodiorite, locally porphyritic. The Nelson plutonic rocks are hornblende biotite granodiorite, quartz diorite and granite. Both are massive, light grey weathering, medium to coarse grained and equigranular.

Bedrock types at the Kaleden young uranium occurrence are assigned to the Kitley Lake Member of the Marron Formation. The Kitley Lake Member consists mainly of massive, yellow to buff, trachyte to trachyandesite lava with conspicuous glomerophenocrystic feldspar and biotite clots in a fine-grained matrix. Minor ash-flow tuff, mudstone and intrusive equivalents comprise the remainder of this member. The Kitley Lake Member age lies between 52.9 Ma (biotite) and 44.2 Ma (whole rock) by potassium-argon dating.

Kaleden contains uranium in organic material on sands. The area of uranium accumulation is approximately 40,000 square metres in a 6.5-metre thick layer. The average uranium concentration yielded from samples taken from 1 augerhole was 0.009 per cent uranium with a maximum value of 0.0148 per cent uranium over a 0.5-metre interval (Culbert, 1979).

Bibliography
EMPR ASS RPT 6360, 6504, 6532, 6657, 6750, 6949, 7095, 7185, 7398, 7670, 7851
EMPR EXPL 1977-E22,E26; 1978-22,23,26; 1979-25
EMPR FIELDWORK 1977, pp. 7-13; 1978, pp. 12-15; 1983, pp. 17,246-259
EMPR MAP 29; 35 (Revised); 39
EMPR OF 1989-2, 1989-5; 1990-32
GSC MAP 341A; 538A; 539A; 541A; 15-1961; 1736A; 2389
GSC OF 481; *551; 637; 1505A; 1565; 1969
GSC P 77-1A, p. 31
CIM BULL Vol. 71, No. 783, May 1978, pp. 103-110
CJES *Vol. 21, May 1984, pp. 559-566
ECON GEOL Vol. 77, No. 5, 1982, pp. 1176-1209
IAEA TECDOC 322 Surficial Uranium Deposits, Vienna, 1984, pp. 179-191
Bates, D.V., J.W. Murray and V. Raudsepp (1980): Royal Commission of Inquiry, Health and Environmental Protection, Uranium Mining; Commissioners' Report, October 30, 1980, Vol. 1, pp. 35-36, 183-184
*Culbert, R.R. (1979): Post-Glacial Uranium Concentration in South Central British Columbia, Royal Commission on Uranium Mining, Accession List #2109S01, 20 pages
Culbert, R.R. and D.G. Leighton (1988): Young Uranium; Ore Geology Reviews Vol. 3, pp. 313-330
EMPR PFD 672527

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