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Peak Deposit, Southeast Fairbanks Borough, Alaska, USAi
Regional Level Types
Peak DepositDeposit
Southeast Fairbanks BoroughBorough
AlaskaState
USACountry

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Latitude & Longitude (WGS84): 63° 10' 21'' North , 142° 50' 1'' West
Latitude & Longitude (decimal): 63.17252,-142.83385
GeoHash:G#: bg4rmspwd
Locality type:Deposit
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Tetlin127 (2011)16.1km
Tok1,258 (2011)19.8km


No description has been added for this locality. Can you add one?

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


23 valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Arsenopyrite
Formula: FeAsS
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Bismuth
Formula: Bi
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Breithauptite
Formula: NiSb
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Calcite
Formula: CaCO3
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Cassiterite
Formula: SnO2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Chalcopyrite
Formula: CuFeS2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
'Chlorite Group'
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Ferro-edenite
Formula: {Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Ferro-hornblende
Formula: ☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Galena
Formula: PbS
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Gold
Formula: Au
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Greenockite
Formula: CdS
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Hastingsite
Formula: {Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Hedleyite
Formula: Bi7Te3
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Jonassonite
Formula: AuBi5S4
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Joséite-A
Formula: Bi4TeS2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Maldonite
Formula: Au2Bi
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Pyrargyrite
Formula: Ag3SbS3
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Pyrite
Formula: FeS2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Pyrrhotite
Formula: Fe7S8
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Quartz
Formula: SiO2
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska
Ullmannite
Formula: NiSbS
Reference: Illig, Peter (2015) Amphibole Au -Cu Skarn and Massive Sulfide Replacement at the Peak Deposit,Eastern Interior,Alaska

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Breithauptite2.CC.05NiSb
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Greenockite2.CB.45CdS
Hedleyite2.DC.05Bi7Te3
Jonassonite2.LA.65AuBi5S4
Maldonite2.AA.40Au2Bi
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Ullmannite2.EB.25NiSbS
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Ferro-actinolite9.DE.10☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Ferro-edenite9.DE.15{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Ferro-hornblende9.DE.10☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Hastingsite9.DE.15{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
Joséite-A-Bi4TeS2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Maldonite1.1.3.1Au2Bi
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 4:3
Hedleyite2.6.3.3Bi7Te3
AmXp, with m:p = 1:1
Breithauptite2.8.11.2NiSb
Galena2.8.1.1PbS
Greenockite2.8.7.2CdS
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Ullmannite2.12.3.3NiSbS
Group 3 - SULFOSALTS
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Ferro-actinolite-☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Ferro-edenite-{Na}{Ca2}{Fe2+5}(AlSi7O22)(OH)2
Ferro-hornblende-☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Hastingsite-{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2
Jonassonite-AuBi5S4
Joséite-A-Bi4TeS2

List of minerals for each chemical element

HHydrogen
H Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
H Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
H Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
H Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
O Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
O Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
O CalciteCaCO3
O QuartzSiO2
O AndraditeCa3Fe23+(SiO4)3
O Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
O CassiteriteSnO2
NaSodium
Na Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Na Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
MgMagnesium
Mg Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
AlAluminium
Al Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Al Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Al Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
SiSilicon
Si Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Si Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Si Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Si QuartzSiO2
Si AndraditeCa3Fe23+(SiO4)3
Si Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
SSulfur
S PyrrhotiteFe7S8
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S PyrargyriteAg3SbS3
S JonassoniteAuBi5S4
S GalenaPbS
S Joséite-ABi4TeS2
S PyriteFeS2
S GreenockiteCdS
S UllmanniteNiSbS
CaCalcium
Ca Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Ca Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Ca Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Ca CalciteCaCO3
Ca AndraditeCa3Fe23+(SiO4)3
Ca Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
FeIron
Fe Ferro-edenite{Na}{Ca2}{Fe52+}(AlSi7O22)(OH)2
Fe Hastingsite{Na}{Ca2}{Fe42+Fe3+}(Al2Si6O22)(OH)2
Fe PyrrhotiteFe7S8
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Fe AndraditeCa3Fe23+(SiO4)3
Fe PyriteFeS2
Fe Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
NiNickel
Ni BreithauptiteNiSb
Ni UllmanniteNiSbS
CuCopper
Cu ChalcopyriteCuFeS2
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag PyrargyriteAg3SbS3
CdCadmium
Cd GreenockiteCdS
SnTin
Sn CassiteriteSnO2
SbAntimony
Sb PyrargyriteAg3SbS3
Sb BreithauptiteNiSb
Sb UllmanniteNiSbS
TeTellurium
Te Joséite-ABi4TeS2
Te HedleyiteBi7Te3
AuGold
Au GoldAu
Au JonassoniteAuBi5S4
Au MaldoniteAu2Bi
PbLead
Pb GalenaPbS
BiBismuth
Bi JonassoniteAuBi5S4
Bi MaldoniteAu2Bi
Bi BismuthBi
Bi Joséite-ABi4TeS2
Bi HedleyiteBi7Te3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Phanerozoic - Proterozoic
0 - 2500 Ma



ID: 640711
unclassified; Metamorphic: undivided

Age: to Quaternary (0 - 2500 Ma)

Description: Eastern Alaska, Yukon, Mackenzie region, Yukon-Tanana upland

Comments: Orogen, magmatic arc/suite; Wilson & Hults, unpublished compilation, 2007-08

Lithology: Schist, gneiss, migmatite, diatexite, tectonite, mylonite, granulite

Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2]

Paleozoic - Neoproterozoic
251.902 - 1000 Ma



ID: 3188010
Precambrian-Phanerozoic sedimentary rocks

Age: Neoproterozoic to Triassic (251.902 - 1000 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Devonian-Mississippian
323.2 - 419.2 Ma



ID: 1590722
Orthogneiss and amphibolite of igneous origin

Age: Paleozoic (323.2 - 419.2 Ma)

Description: Biotite gneiss and schist unit. Includes quartz-feldspar-biotite gneiss and intrusions of fine-grained felsic and granite dikes

Lithology: Metamorphic

Reference: Wilson, F.H., Hults, C.P., Mull, C.G, and Karl, S.M. (compilers). Geologic map of Alaska. doi: 10.3133/sim3340. U.S. Geological Survey Scientific Investigations Map 3340, pamphlet 196. [21]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Illig, P., & Newberry, R. J. (2015). Amphibole Au–Cu skarn and massive sulfide replacement at the Peak deposit, Eastern Interior, Alaska. In Proceedings, PACRIM 2015 Congress (Skarn and Replacement Deposits chapter): Melbourne, The Australasian Institute of Mining and Metallurgy (pp. 415-422).


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