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Unnamed Occurrence (ARDF - MD009; east of Sunrise Creek), Yukon-Koyukuk Census Area, Alaska, USAi
Regional Level Types
Unnamed Occurrence (ARDF - MD009; east of Sunrise Creek)- not defined -
Yukon-Koyukuk Census AreaCensus Area
AlaskaState
USACountry

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Latitude & Longitude (WGS84):
63° 51' 3'' North , 155° 2' 56'' West
Latitude & Longitude (decimal):
63.85083,-155.04889
GRN:
N43W52
Köppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
201094
Long-form identifier:
mindat:1:2:201094:9
GUID (UUID V4):
0


Location: Occurrence is situated on a prominent, isolated knob about one half mile (0.8 km) east of Sunrise Creek at an elevation of 1,100 feet (335 m) in Section 12, T. 19 S., R. 19 E., of the Kateel River Meridian.
Geology: Hematite occurs as dark red and black veinlets and as fine botryoidal masses in cavities in brecciated and hydrothermally altered, porphyritic rhyolite, in part of a unit described as rhyolite domes, tuffs and breccia by Patton and others, 1980). Possible dark, oxidized cinnabar also occurs in the veinlets (Patton and Moll, 1983). Three samples contained 0.95 to 3.70 ppm mercury (Patton and Moll, 1983).
Workings: Three samples contained 0.95 to 3.70 ppm mercury (Patton and Moll, 1983).
Alteration: Chalceodonic.
Reserves: None.

Commodities (Major) - Hg; (Minor) - Fe
Development Status: No

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 2 - Sulphides and Sulfosalts
ⓘCinnabar ?2.CD.15aHgS
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3

List of minerals for each chemical element

OOxygen
Oⓘ HematiteFe2O3
SSulfur
Sⓘ CinnabarHgS
FeIron
Feⓘ HematiteFe2O3
HgMercury
Hgⓘ CinnabarHgS

Other Databases

Link to USGS - Alaska:MD009

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

King, H.D., Risoli, D.A., Cooley, E.F., O'Leary, R.M., Speckman, W.A., Speisman, D.L., and Galland, D.W., 1980, Final results and statistical summary of analyses of geochemical samples from the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811F, 134 pages. Patton, W.W., Jr., and Moll, E.J., 1983, Mineral resource assessment map of the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-G, 3 sheets, scale 1:250,000. 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.
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