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Unnamed Occurrence (ARDF - SI161; Pond Island), Chichagof Mining District (Chicagof Mining District), Sitka, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - SI161; Pond Island)- not defined -
Chichagof Mining District (Chicagof Mining District)Mining District
SitkaCity Borough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
57° 16' 13'' North , 134° 53' 45'' West
Latitude & Longitude (decimal):
57.27028,-134.89583
GeoHash:
G#: c40jf3eze
GRN:
N39W54
Köppen climate type:
Cfc : Subpolar oceanic climate
Nearest Settlements:
PlacePopulationDistance
Angoon456 (2017)31.9km
Sitka8,863 (2017)35.6km
Mindat Locality ID:
201599
Long-form identifier:
mindat:1:2:201599:9
GUID (UUID V4):
0


Location: This occurrence is at sea level on the southwest end of Pond Island on the east side of 'The Basin' of Kelp Bay. The occurrence is 0.4 mile west-northwest of the center of sec. 15, T. 53 S., R. 66 E. It is location P-102 of Bittenbender and others (1999), location 64 of Cobb (1972, 1978), and MAS no. 0021140189 (U.S. Bureau of Land Management, 2002). The location probably is accurate within 0.2 mile.
Geology: The rocks in the vicinity of this occurrence are part of the Jurassic and/or Triassic, Kelp Bay Group which consists of phyllite, quartzite, greenschist, greenstone, graywacke, and semischist.( Loney and others, 1975). Loney and others (1963) noted pyrite, chalcopyrite, covellite, and bornite in quartz veins and iron-stained siliceous rocks in this area. Bittenbender and others (1999) collected 3 samples of: 1) quartz veins in siliceous greenschist; 2) siliceous metavolcanic rocks with 1 percent pyrite; and 3) mudstone and tuff with up to 5 pyrite and pyrrhotite. Gold values were all less than 5 parts per billion and the highest copper value was 230 parts per million; all of the other common metallic elements were at background level.
Workings: Apparently only surface sampling by government geologists.
Age: Triassic or younger based on the age of the host rock.
Alteration: Alteration noted but no details.

Commodities (Major) - Cu
Development Status: None
Deposit Model: Quartz veins with copper minerals.

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.


Mineral List


6 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2

List of minerals for each chemical element

OOxygen
Oⓘ QuartzSiO2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS

Other Databases

Link to USGS - Alaska:SI161

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p. Cobb, E.H., 1972, Metallic mineral resources map of the Sitka quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-467, scale 1:250,000. Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Sitka quadrangle: U.S. Geological Survey Open-File Report 78-450, 124 p. Loney, R.A., Berg, H.C., Pomeroy, J.S., and Brew, D.A., 1963, Reconnaissance geologic map of Chichagof Island and northwestern Baranof Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-388, 1 sheet, scale 1:250,000. Loney, R.A., Brew, D.A., Muffler, L.J.P., and Pomeroy, J.S., 1975, Reconnaissance geology of Chichagof, Baranof, and Kruzof Islands, southeastern Alaska: U.S. Geological Survey Professional Paper 792, 105 p. U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
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