Dog Hole (ARDF #BC083) Ag, Au, Pb, Zn

Dog Hole

Prospect, Undetermined

Commodities and mineralogy

Main commodities	Ag; Au; Pb; Zn
Ore minerals	galena; pyrite; sphalerite
Gangue minerals	quartz

Geographic location

Quadrangle map, 1:250,000-scale	BC
Quadrangle map, 1:63,360-scale	A-1
Latitude	56.033
Longitude	-130.086
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	The Dog Hole prospect (Maas and others, 1995, p. 233, 235, 244) is in the northeast corner of Section 16 at an elevation of about 4600 feet. It is on a south-facing mountainside about 1.0 mile north-northeast of Texas Lake. The location is accurate within about 0.1 mile.

Geologic setting

Geologic description The country rocks in the area of the Dog Hole prospect are pelitic metasedimentary and subordinate andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group, which is underlain and locally intruded by the Triassic Texas Creek Granodiorite; and the Eocene Hyder Quartz Monzonite, which intrudes the Hazelton and Texas Creek rocks (Smith, 1977; Koch, 1996). Maas and others (1995, p. 235, 244) describe the deposit as sulfide-bearing silicified (?) Hazelton volcanic rock and argillite. The sulfides are pyrite, galena, and sphalerite. Lead-isotope studies of galena from the prospect indicate that the deposit is Jurassic in age, contemporaneous, at least in part, with island-arc volcanism in Hazelton time (Alldrick, 1993). Samples of the deposit collected by the U.S. Bureau of Mines in 1992 or 1993 (Maas and others, 1995, p. 244) contain up to 1.3 ppm Ag, 30.1 ppm Ag, 0.84 percent Pb, and 2.17 percent Zn.
Geologic map unit	(-130.087704645588, 56.0327023730901)
Mineral deposit model	Polymetallic veins (Cox and Singer, 1986; model 22c).
Mineral deposit model number	22c
Age of mineralization	Maas and others (1995, p. 235, 244) describe the deposit as sulfide-bearing silicified (?) Hazelton volcanic rock and argillite. The sulfides are pyrite, galena, and sphalerite. Lead-isotope studies of galena from the prospect indicate that the deposit is Jurassic in age, contemporaneous, at least in part, with island-arc volcanism in Hazelton time (Alldrick, 1993).
Alteration of deposit	Volcanic and sedimentary hostrocks are silicified?

Production and reserves

Workings or exploration	Prospect has been explored by a 6-foot adit. Samples of the deposit collected by the U.S. Bureau of Mines in 1992 or 1993 (Maas and others, 1995, p. 244) contain up to 1.3 ppm Ag, 30.1 ppm Ag, 0.84 percent Pb, and 2.17 percent Zn.
Indication of production	None

References

References Alldrick, D.J., 1993, Geology and metallogeny of the Stewart mining camp, northwestern British Columbia: British Columbia Department of Mines and Petroleum Resources Bulletin 85, 105 p., 2 plates, scale 1:50,000. Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p., 1 plate.
Reporters	H. C. Berg (Fullerton, California)
Last report date	5/17/1998