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Bermuda Prospect, Yukon-Koyukuk Census Area, Alaska, USAi
Regional Level Types
Bermuda ProspectProspect
Yukon-Koyukuk Census AreaCensus Area
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
63° 27' 39'' North , 154° 3' 54'' West
Latitude & Longitude (decimal):
63.46083,-154.06500
GeoHash:
G#: be63n0tq1
GRN:
N43W52
Type:
Prospect
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
196459
Long-form identifier:
mindat:1:2:196459:5
GUID (UUID V4):
0


See also Beaver (MD048), Hillside (MD049) and Big Gate (MD050) Mississippi Valley Type occurrences in Medfra B-3 quadrangle. The Bermuda prospect is on land selected or conveyed to Doyon Ltd. For further information, contact Doyon Ltd. at 210 1st Ave., Fairbanks, Alaska, 99701.
Location: The Bermuda prospect is located on a southwest spur at 2,000 feet (610 m) in elevation near the head of Beaver Creek, in the extreme southwest corner of Section 28, T. 23 S., R. 25 E., of the Kateel River Meridian. Location is known to within 100 feet (30 m).
Geology: At the Bermuda prospect, iron-rich smithsonite gossan is hosted in recrystallized dolomite, which is considered to be the same northeast striking, mineralized dolomite layer as at the Big Gate (MD050) and Beaver (MD048) zinc occurrences. Host unit is probably equivalent to the Paradise Fork Formation of Dutro and Patton (1982); unit OSbd of Andrews and Rishel (1982). Host rock is inferred to be mid-Paleozoic based on fossil collections (Dutro and Patton, 1982). The age of mineralization is unknown. Composite grab samples in main spur area contained an average of 0.67 percent zinc and 0.035 percent lead. Further to the northeast, float found in stream cut along strike contained 17.00 percent zinc and 0.23 percent lead (Andrews and Rishel, 1982).
Workings: The Bermuda prospect was found by WGM Inc. and Patino Ltd. in the late 1970s during exploration for base metals on lands selected by Doyon Ltd (Andrews and Rishel, 1982) Composite grab samples in main spur area contained an average of 0.67 percent zinc and 0.035 percent lead. Further to the northeast, float found in stream cut along strike contained 17.00 percent zinc and 0.23 percent lead (Andrews and Rishel, 1982).
Age: Host rock is inferred to be Paleozoic based on fossil collections (Dutro and Patton, 1982). The age of the mineralization is unknown.
Alteration: Secondary dolomite.
Reserves: None.

Commodities (Major) - Zn; (Minor) - Pb
Development Status: No
Deposit Model: Southeast Missouri Pb-Zn (Cox and Singer, 1986; model no. 32a) or Mississippi V

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


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
ⓘSmithsonite5.AB.05ZnCO3
ⓘDolomite5.AB.10CaMg(CO3)2

List of minerals for each chemical element

CCarbon
Cⓘ DolomiteCaMg(CO3)2
Cⓘ SmithsoniteZnCO3
OOxygen
Oⓘ DolomiteCaMg(CO3)2
Oⓘ SmithsoniteZnCO3
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
CaCalcium
Caⓘ DolomiteCaMg(CO3)2
ZnZinc
Znⓘ SmithsoniteZnCO3

Other Databases

Link to USGS - Alaska:MD045

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Andrews, Tom, and Rishel, John, 1982, Annual Report for 1981, Reef Ridge I-to-XIII Project Areas, Kuskokwim Block, Alaska: Anchorage, Alaska, WGM Inc., Project Report 4, 45 p., 2 sheets, scales 1:63,360 and 1:20,000. (Report held by Doyon, Limited, Fairbanks, Alaska.) Dutro, J.T. Jr., and Patton,W.W. Jr., 1982, New Paleozoic formations in the northern Kuskokwim Mountains, west-central Alaska: U.S. Geological Survey Bulletin 1529-H, p. H13-H22. Patton, W.W. Jr., Moll, E.J., Dutro, J.T., Jr., Silberman, M.L., and Chapman, R.M., 1980, Preliminary geologic map of the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811, one sheet at 1:250,000 scale. Schmidt, J.M., 1997, Shale-hosted Zn-Pb-Ag and barite deposits of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral deposits of Alaska, 1997: Economic Geology Monograph 9, p. 35-65.
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