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:  11-Apr-2012 by George Owsiacki (GO)

Summary Help Help

NMI 103P5 Cu3
Name FRIDAY, MAPLE BAY Mining Division Skeena
BCGS Map 103O050
Status Prospect NTS Map 103O08E, 103P05W
Latitude 055º 26' 03'' UTM 09 (NAD 83)
Longitude 130º 00' 55'' Northing 6143576
Easting 435759
Commodities Silica Deposit Types I07 : Silica veins
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Coast Crystalline Terrane Stikine, Wrangell
Capsule Geology

The Friday showing is located about 980 metres north of Maple Bay on the east shore of Portland Canal, about 55 kilometres south of Stewart and 12.5 kilometres due west of Anyox.

The region is underlain by a roof pendant, consisting of volcanic and sedimentary rocks, within the Eocene Coast Plutonic Complex. These pendant rocks have been correlated with Middle-Upper Jurassic Hazelton Group rocks and overlying upper Middle to Upper Jurassic Bowser Lake Group sedimentary rocks (Geological Survey of Canada Open File 3453). The Hazelton rocks consist of variably chloritized pillow and massive andesite and basalt with minor mafic tuffs. The overlying Bowser Lake sediments consist of argillite, siltstone and sandstone with minor chert and limestone. There are two observable phases of folding in the area, an initial north-northeast trending phase followed by a later east-northeast trending phase.

At the Friday showing, a coarse grained milky white quartz vein is hosted in interbedded dark grey siltstone and fine-grained sandstone. Siltstone inclusions occur along the western margin of the vein. The Friday vein, 4 to 5 metres in width, strikes 170 degrees for up to 180 metres and dips near vertical and is exposed over a strike length of 50 metres. Minor reddish brown staining occurs along fractures and some rusty weathering zones are locally present. Well foliated prismatic crystals occasionally line voids. Only very minor amounts of sulphide mineralization are present. It represents the best potential as a silica source in the Maple Bay area. The quartz appears to be relatively pure and the occurrence is only 500 metres from the shore (Open File 1987).

Bibliography
EMPR ASS RPT 24681
EMPR BULL 63
EMPR FIELDWORK 1990, pp. 235-243; 2005, pp. 1-4
EMPR GEM 1970-77-81
EMPR MAP 8
EMPR OF 1986-2; *1987-15, pp. 36,37; 1994-14
EMPR PF (*Pell, J. (1982): Report)
GSC MAP 1385A
GSC OF 864; 3453

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY