The C-1 zone was discovered in 1991 by diamond drilling coincident geochemical and geophysical anomalies on the south-facing slope of the 'hump' approximately 9 kilometres west of the Goldstream mine.
The zone is comprised of one or more layers of disseminated and banded to locally semimassive pyrrhotite and sphalerite with trace amounts of chalcopyrite and galena. Ten drillholes tested the zone over a strike length of 400 metres and downdip for up to 75 metres. The best intersection yielded 3.94 per cent zinc, 1.54 per cent lead, 0.04 per cent copper and 31.19 grams per tonne silver over 2 metres. The sulphides are hosted by strongly fractured and faulted dark chlorite phyllite, carbonate and black graphitic phyllite and minor quartz stockwork zones within these units. The thinly foliated calcareous green chlorite schists and carbonates are probably equivalent to the middle Index Formation, or the uppermost lower Index Formation and are correlated with footwall rocks at the Goldstream mine (082M 141).
Talc-altered ultramafic rocks and dark graphitic phyllite crop out in a soapstone quarry 2 kilometres east of the C-1 zone. Drillhole stratigraphy eastward towards the mine shows an interlayered sequence of graphitic phyllites, chloritic phyllites, talc-altered ultramafic rocks and lesser carbonate as far east as the tailings pond (approximately 4 kilometres east of the C-1 zone). Northwest of the C-1 showing, asbestos-bearing serpentinite occurs in graphitic schists of the lower Index Formation at the Monarch showing, now submerged by the Columbia River. Thinly foliated talc-altered greenschists and ankeritic talc schist may represent zones of hydrothermal exhalation rather than altered ultramafic rock.
The mineralogy and host stratigraphy of the C-1 showing are similar to the stratiform Rift lead-zinc deposit (082M 190) located approximately 22 kilometres north. The Rift consists of a number of layers of massive sphalerite, pyrite, pyrrhotite and galena up to 2 metres thick. Sulphides are hosted by a predominantly schistose package of staurolite grade quartz-granet pelitic schist and layered calcsilicate with lesser psammite and marble. A sheared and metamorphosed ultramafic body, 15 metres thick, intrudes the metasediments above the massive sulphide layer. It consists of magnesite, antigorite, talc and magnetite. Similar ultramafic rocks occur in the Keystone area (082M 089) and are intimately associated with massive sulphides at the Standard deposit (082M 090) farther south.
During 2001, work by Orphan Boy Resources Inc. consisted of 61.4 kilometres of grid establishment covering the northeastern extension of the partially defined lead-zinc soil anomaly north of the C-l zone and soil sampling (1345 samples). Geophysical surveys consisting of magnetometer and VLF-EM were carried out totaling 61.4 kilometres. Geological mapping and prospecting carried out covered approximately 6 square kilometres. One hole totaling 146.7m was drilled on the Pb-Zn soil anomaly on the C-l zone. The core intersections and geochemical results did not explain the anomalous Pb-Zn soil geochemical anomaly.
Prospecting 700 metres south of the Cl zone yielded massive sulphide float boulders along a facing slope. Angular float boulders range from zlm to less than 0.5 metre in size. Mineralization consists of massive pyrrhotite with localized fractures infilled with trace chalcopyrite, sphalerite and galena.
Orphan Boy commenced core drilling on the Boutwell target in the northwestern part of the Goldstream property in 2004 (Press Release, August 9, 2004). The vertical target depth for the Boutwell zone was estimated to be 228 metres. Follow up press releases indicated that the search for the source of the Boutwell float would continue indicating that the drilling did not intersect the hoped for zone.
