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:  09-May-1990 by Larry Jones (LDJ)

Summary Help Help

NMI 092F2 Au2,Cu1
Name SPECOGNA COPPER, WO 4, TORCHY, WATERFALL Mining Division Nanaimo
BCGS Map 092F018
Status Showing NTS Map 092F01W, 092F02E
Latitude 049º 07' 04'' UTM 10 (NAD 83)
Longitude 124º 30' 23'' Northing 5441641
Easting 390081
Commodities Copper, Silver, Zinc, Gold Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Specogna Copper showing is located on the north side of the Nanaimo River.

A major northwest trending fault separates volcanics of the Upper Devonian McLaughlin Ridge Formation (Myra Formation), Sicker Group with basalts of the Upper Triassic Karmutsen Formation, Vancouver Group. The basalts are overlain by sandstone and conglomerate of the Cretaceous Nanaimo Group. The rocks are cut by feldspar porphyry of the Tertiary Mount Washington Intrusive Suite (Labour Lake Pluton), previously Catface Intrusions (Personal Communication - Nick Massey, May 1990).

Chalcopyrite, pyrite, bornite and sphalerite occur in lenses, pods and stringers in sheared and altered Karmutsen pillow basalts. The mineralized shear zone measures 60 by 15 metres, strikes 175 degrees and dips 80 degrees east. Quartz, calcite and chlorite are the main gangue minerals. A grab sample assayed 15.8 per cent copper, 481 grams per tonne silver, 2.02 per cent zinc and 0.9 grams per tonne gold (Assessment Report 10302). A 1.1 metre drill intersection assayed 2.14 per cent copper, 9.6 grams per tonne silver and 2.5 grams per tonne gold (Assessment Report 10996).

Bibliography
EMPR ASS RPT 8687, *10302, *10996, 12128, *12832, 13236, 15939, 16719
EMPR BULL 37
EMPR EXPL 1980-164-165; 1982-140; 1984-150
EMPR FIELDWORK 1988 pp. 61-74
EMPR OF 1987-2; 1988-24; *1989-6
GSC MAP 17-1968; 19-1963
GSC OF 463; 1272
GSC P 68-50; 79-30
CIM BULL Vol. 83 No. 935, March 1990 pp. 125-135
N MINER Dec. 24, 1981
PERS COMM (N. Massey, May 1990)
Falconbridge File
EMPR PFD 650145, 650146, 650144

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY