British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Mar-1991 by Carol I. Didson (CID)

Summary Help Help

NMI 092J15 Sb5
Name STIBNITE, LOST GOLD, ORO Mining Division Lillooet
BCGS Map 092J076
Status Prospect NTS Map 092J15W
Latitude 050º 47' 15'' UTM 10 (NAD 83)
Longitude 122º 51' 58'' Northing 5626203
Easting 509438
Commodities Antimony, Gold, Silver, Copper Deposit Types I09 : Stibnite veins and disseminations
I01 : Au-quartz veins
Tectonic Belt Coast Crystalline Terrane Cadwallader, Plutonic Rocks
Capsule Geology

The Oro claims are underlain by Hurley Formation rocks of the Upper Triassic Cadwallader Group, consisting of sediments and volcanic aquagene breccia striking northwest and dipping southwest. These are intruded by quartz diorite stocks and hornblende porphyry dykes of the Jurassic to Tertiary Coast Plutonic Complex.

On the Oro 3 claim, three narrow quartz-calcite veins containing minor disseminated pyrite, chalcopyrite and stibnite occur in a quartz diorite stock near the contact with Hurley sediments and volcanics. The veins average 30 centimetres in width, strike north-northwest and dip steeply west.

Grab samples assayed 12.0 grams gold per tonne and 97.4 grams silver per tonne (Assessment Report 14725). The original "stibnite" showing (on Oro 2) is hosted in Hurley volcanics and sediments near a hornblende porphyry dyke. Narrow veins in shears are 60 metres long by 25 centimetres wide and contain an average of 8.9 per cent antimony. Northeast of the original showing, also on the Oro 2 claim, 2 narrow stibnite-quartz-calcite veins are hosted in quartz diorite near a felsite dyke. The veins strike north-northwest, dip steeply north and average 7.5 per cent antimony over 25 centimetres for 15 metres strike length. One grab sample assayed 16.9 per cent antimony (Assessment Report 14725).

EMPR AR 1933-A274; 1959-28; 1960-24; 1970-224
EMPR ASS RPT 332, 8259, 9375, *11875, 12962, *14725, 17689, 18594
EMPR EXPL 1984-234, 1986-C270, 1988-C123
EMPR FIELDWORK 1974, p. 35; 1985, pp. 303-310; 1986, pp. 23-29; 1987, pp. 93-130; 1988, pp. 105-152; 1989, pp. 45-72; 1990, pp. 75-83
EMPR OF 1987-11; 1988-3; 1989-4; 1990-10
GSC MEM 130; 213
GSC OF 482
GSC P 73-17; 77-2 (GSC 76-49)
CJES 1987, Vol. 24, pp. 2279-2291
Sebert, C.F.B. (1987): Description of 22 Mineral Properties, Bridge River Mining Camp, Unpublished B.Sc. Thesis, University of British Columbia
EMPR PFD 675617, 675633