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Schrader Bluff Occurrence, Colville Mining District, North Slope Borough, Alaska, USAi
Regional Level Types
Schrader Bluff OccurrenceOccurrence
Colville Mining DistrictMining District
North Slope BoroughBorough
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
69° 10' 12'' North , 151° 0' 0'' West
Latitude & Longitude (decimal):
69.17000,-151.00000
GeoHash:
G#: bsk9ebj0k
GRN:
N47W41
Type:
Occurrence
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
199851
Long-form identifier:
mindat:1:2:199851:4
GUID (UUID V4):
0


Bentonite is used in drilling fluids.
Location: Deposit crops out at Schrader Bluff on the Anaktuvuk River. Deposit is located wthin 1.6 kilometers (1 mi).
Geology: Cretaceous rocks contain bentonite beds as thick as 1.5 meters (5 ft). Beds that appear to be composed of nearly pure bentonite are locally present in the Colville Group and in the Niakogan Tongue of the Chandler Formation and the Ninuluk Formation of the Nanushuk Group. Clasts of bentonite are common in rocks of the Colville Group.
Workings: None
Age: Early and Late Cretaceous

Commodities (Major) - Clay1
Development Status: No
Deposit Model: Lode; volcanogenic

Rock Types Recorded

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Link to USGS - Alaska:UT001

Other Regions, Features and Areas containing this locality

North AmericaContinent
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

Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in northern Alaska: U.S. Geological Survey Open-File Report 75-628, 106 p. Detterman, R.L., Bickel, R.S., and Gryc, George, 1964, Geology of the Chandler River region, Alaska: U.S. Geological Survey Professional Paper 303E, p. 223-324.
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