The Ed Creek occurrence is located adjacent to Ed Creek approximately 850 metres southeast of the creekâs confluence with the Stranby River.
Regionally, the area is underlain by a northwest-trending series of sedimentary and volcanic rocks comprising basaltic volcanic rocks of the Upper Triassic Karmutsen Formation (Vancouver Group), which is overlain by limestone of the Upper Triassic Quatsino Formation (Vancouver Group) and limestone, mudstone and siltstone of the Upper Triassic Parson Bay Formation (Bonanza Group) that have been intruded by quartz diorite to granodiorite of the Lower to Middle Jurassic Island Plutonic Suite.
The occurrence is similar to the nearby Stranby (MINFILE 102I 001) occurrence and occurs within a 10-metre-thick limestone band intercalated with Karmutsen basalts. The limestone is altered to garnet-epidote-calcite-quartz skarn and hosts chalcopyrite with minor bornite and magnetite. To the east of the occurrence, a granodiorite stock intrudes the volcanics and the rocks in this vicinity are strongly fractured.
Work History
During 1968 through 1970, Quintana Minerals Corp. completed a program of geological mapping, geochemical (rock, silt and soil) sampling, trenching and a 31.0 line-kilometre induced polarization survey on the area as the Cape Scott (CS) claims.
In 1982, Electra North West Resources Ltd. completed a program of soil sampling and a ground magnetometer survey on the area as the BU, DU and SU claims. In 1984, a further ground magnetic survey was completed.
In 1990, Westword Explorations staked the area as the Shuttle 1-4 claims of the Shuttleworth Property and completed a program of prospecting, geochemical (rock and silt) sampling and 10.0 line-kilometres of ground magnetic and electromagnetic surveys. This work identified a number of VLF-EM anomalies and a north-northwesterly magnetic high.
During 1991 through 1996, Winfield Resources completed programs of prospecting, geological mapping, geochemical (rock, soil and heavy mineral) sampling and ground magnetic and electromagnetic surveys on the area as the Duck 1-14 and Shuttle 1-6 claims of the Shuttleworth property. This work identified an erratic band of soil gold anomalies over 650 metres in length centred on a magnetic low between two elongate magnetic highs west of the Stranby River.