Cook Prospect, Juneau Mining District, Juneau, Alaska, USA i
Regional Level Types
Cook Prospect Prospect
Juneau Mining District Mining District
Juneau City Borough
Alaska State
USA Country

Location: A likely location for this prospect is near the southwest end of Lower Sweetheart Lake near the southeast corner of section 19, T. 45 S., R. 73 E. However, this prospect dates to before 1906 and has apparently not been located since; it may be a mile or so away from the location given here.
Geology: Spencer (1904, 1906) reported a gold-quartz prospect with galena northwest of Lower Sweetheart Lake near its outlet. Three claims were staked on it in 1902 by Frank Cook. There is no additional information on the prospect and Kimble and others (1984) could not locate it. The rocks in the area are Cretaceous hornblende schist and biotite schist (Brew and Grybeck, 1984).
Workings: Three claims were staked in 1902.

Commodities (Major) - Au, Pb
Development Status: None

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

ⓘ Lead

Mineral List

ⓘ Galena

ⓘ Quartz

2 valid minerals.

Detailed Mineral List:

ⓘ Galena

Formula: PbS

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

ⓘ Quartz

Formula: SiO₂

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Galena	2.CD.10	PbS
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂

List of minerals for each chemical element

O	Oxygen
O	ⓘ Quartz	SiO₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Galena	PbS
Pb	Lead
Pb	ⓘ Galena	PbS

Other Databases

Link to USGS - Alaska:	SD013

Other Regions, Features and Areas containing this locality

North AmericaContinent

Coast MountainsMountain Range

North America PlateTectonic Plate

Taku DomainDomain
Yukon-TananaVolcanic Arc

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References

Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Brew, D.A., and Grybeck, Donald, 1984, Geology of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska, in U.S. Geological Survey and U.S. Bureau of Mines, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, p. 19-52. Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Sumdum and Taku River quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-698, 64 p. Kimble, A.L., Still, J.C., and Rataj, J.L., 1984, Mineral deposits and occurrences in the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska, in U.S. Geological Survey and U.S. Bureau of Mines, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, p. 106-210. Spencer, A.C., 1904, The Juneau Gold Belt: U.S. Geological Survey Bulletin 225, p. 28-42. Spencer, A.C., 1906, The Juneau Gold Belt, Alaska: U.S. Geological Survey Bulletin 287, 161 p. U.S. Geological Survey and U.S. Bureau of Mines, 1984, Mineral resources of the Tracy Arm-Fords Terror wilderness study area and vicinity, Alaska: U.S. Geological Survey Bulletin, 1525, 308 p. Wright, F.E., and Wright, C.W., 1906, Lode mining in southeastern Alaska: U.S. Geological Survey Bulletin 284, p. 30-54.

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