Location: The Barron prospect is at an elevation of approximately 900 feet on the southwest side of Lone Mountain, 2 miles north of Bear Creek and 1.2 miles west of Stephens Passage. It is in the NE1/4SE1/4 section 19, T. 41 S., R. 65 E. of the Copper River Meridian. The location is accurate within 1/4 mile.
Geology: The Barron prospect consists of a 10-foot thick magnetite- and pyrrhotite-bearing skarn in marble. The skarn can be traced 2000 feet to the northwest and a short distance to the southeast. A large claim block covered this area in 1984 (Wells and others, 1986). No other information is available. The rocks in the area are mainly Ordovician and Devonian to Triassic clastic strata, mafic-intermediate volcanic rocks, and subordinate limestone. The bedded rocks are intruded and locally metamorphosed by Cretaceous granodiorite (Gehrels and Berg, 1994).

Commodities (Major) - Fe
Development Status: No
Deposit Model: Fe-skarn deposit, (Cox and Singer, 1986; model 18d)

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.

ⓘ Iron

Mineral List

ⓘ Magnetite

ⓘ Pyrrhotite

2 valid minerals.

Detailed Mineral List:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

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

ⓘ Pyrrhotite

Formula: Fe_1-xS

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
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄

List of minerals for each chemical element

O	Oxygen
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
S	Sulfur
S	ⓘ Pyrrhotite	Fe_1-xS
Fe	Iron
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrrhotite	Fe_1-xS

Other Databases

Link to USGS - Alaska:	JU135

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Alexander DomainDomain
Alexander TerraneVolcanic Arc

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

Gehrels, G.E., and Berg, H.C., 1994, Geology of southeastern Alaska, in Plafker, George, and Berg, H. C., eds., The geology of Alaska: Geological Society of America, DNAG, The geology of North America, Vol. G-1, p. 451-467. Wells, D.E., Pittman, T.L., Brew, D.A. and Douglass, S.L., 1986, Map and description of the mineral deposits in the Juneau, Taku River, Atlin, and part of the Skagway quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-717, 332 p., 1 sheet, scale 1:250,000.

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