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: 20-Jan-2004 by Ian Webster (ICLW)
Last Edit:  22-Jun-2009 by George Owsiacki (GO)

Summary Help Help

NMI
Name ROAD ZONE, MOUNT POLLEY Mining Division Cariboo
BCGS Map 093A052
Status Prospect NTS Map 093A12E
Latitude 052º 34' 05'' UTM 10 (NAD 83)
Longitude 121º 38' 13'' Northing 5825104
Easting 592374
Commodities Copper, Gold Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Road zone is part of the Mount Polley deposit (093A 008) located 56 kilometres northeast of Williams Lake, west of Quesnel Lake and 8 kilometres southwest of Likely. The property is accessible from Highway 97 at 150 Mile House via 76 kilometres of paved road and 12 kilometres of forestry road.

The Mount Polley deposits occur within felsic Jurassic-Triassic Polley stock rocks which have intruded Nicola Group volcanic rocks. The Nicola Group in the area comprises a sequence of alkali basalt breccias and flows of Upper Triassic (Norian) age overlain by polylithic breccias characterized by the presence of felsic clasts of Lower Jurassic (Pliensbachian?) age. The stock which hosts the copper mineralization is a complex of several intrusive phases ranging in composition from diorite to syenite. The Polley stock of syenodiorite, monzonite porphyry and lesser pyroxenite composition forms the hills between Bootjack Lake and Polley Lake.

In 1995, Imperial Metals Corp. drilled 806.2 metres in four NQ holes (95-7, 95-8, 95-10 and 95-11) on the Road Zone located 1.2 kilometres north of the North Pit (Mount Polley Mine, 093A 008) in order to test geochemical and coinciding induced polarization anomalies.

Hole 95-7, collared adjacent to the Road showing, intersected older and younger phases of the Polley stock and minor monzonite porphyry dikes. Intrusion breccia, the most frequent ore-hosting lithology in the Mount Polley deposit, was not encountered. Five intermittent mineralized intervals were intersected in the hole with minor disseminated chalcopyrite and pyrite. One intersection from drillhole 95-7 analyzed 0.345 per cent copper and 3.2 grams per tonne gold across 16.76 metres (Assessment Report 24143). Hole 95-8, drilled approximately 300 metres southeast to test the middle geochemical copper-gold anomaly encountered similar intrusive lithologies and mineralization as the first hole, but continuation of drilling by holes 95-10 and 95-11 collared approximately 100 metres south failed to extend the zone along the anomalous trend. Hole 95-10 intersected several intervals of non-mineralized intrusion breccia.

The Road Zone remains a target to be further evaluated by closer-spaced holes and a detailed induced polarization survey. The area with exploration potential lies to the west from the showing, where drilling in 1989 encountered near-surface mineralization. The hole MP-71, located 350 metres southwest from the Road showing intersected 0.27 per cent copper and 0.35 gram per tonne gold over 15.24 metres from 3.05 to 18.29 metres (Assessment Report 24143). The west part of the zone is characterized by weak geochemical soil anomalies and has not been covered by geophysical surveys or drilling.

In 1996, Imperial Metals Corp. drilled three holes totalling 483.1 metres on the Road Zone. See Mount Polley mine (093A 008) for a detailed work history of the area.

Bibliography
EMPR ASS RPT *24143, 24759, 25355, 25765, 25906
EMPR BULL 97
EMPR OF 1987-9; 1989-14, 20; 1990-31
EMPR P 1990-3
GSC MAP 12-1959; 1424A; 1538G
GSC OF 574; 844
EMPR PFD 673299

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY