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Dry Delta, Alaska Range, Yukon-Koyukuk Census Area, Alaska, USAi
Regional Level Types
Dry Delta- not defined -
Alaska RangeMountain Range
Yukon-Koyukuk Census AreaCensus Area
AlaskaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84):
62° 35' North , 153° 5' West
Latitude & Longitude (decimal):
Köppen climate type:


NOTE: Coordinates are for the Alaska Range.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Celsian
Formula: Ba(Al2Si2O8)
Reference: Amer. Mineral (1929) 14:319-322
Gillespite (TL)
Formula: BaFe2+Si4O10
Type Locality:
Description: Found in a small rock specimen in the glacial moraine near the head of Dry Delta.
Reference: J.Washington Acad.Sci.(1922) 12, 7-8; Amer. Mineral (1929) 14:319-322
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Amer. Mineral (1929) 14:319-322
Quartz
Formula: SiO2
Reference: Amer. Mineral (1929) 14:319-322

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Celsian9.FA.30Ba(Al2Si2O8)
Gillespite (TL)9.EA.05BaFe2+Si4O10
Hedenbergite9.DA.15CaFe2+Si2O6

List of minerals arranged by Dana 8th Edition classification

Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Gillespite (TL)71.2.3.2BaFe2+Si4O10
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Celsian76.1.1.4Ba(Al2Si2O8)

List of minerals for each chemical element

OOxygen
O GillespiteBaFe2+Si4O10
O CelsianBa(Al2Si2O8)
O HedenbergiteCaFe2+Si2O6
O QuartzSiO2
AlAluminium
Al CelsianBa(Al2Si2O8)
SiSilicon
Si GillespiteBaFe2+Si4O10
Si CelsianBa(Al2Si2O8)
Si HedenbergiteCaFe2+Si2O6
Si QuartzSiO2
CaCalcium
Ca HedenbergiteCaFe2+Si2O6
FeIron
Fe GillespiteBaFe2+Si4O10
Fe HedenbergiteCaFe2+Si2O6
BaBarium
Ba GillespiteBaFe2+Si4O10
Ba CelsianBa(Al2Si2O8)

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

Miocene - Oligocene
5.333 - 33.9 Ma



ID: 3188821
Cenozoic sedimentary rocks

Age: Cenozoic (5.333 - 33.9 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]

Silurian
419.2 - 443.8 Ma



ID: 627435
Sedimentary; Slope and deep water

Age: Silurian (419.2 - 443.8 Ma)

Description: Interior western Alaska, Medfra-Kantishna region

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

Lithology: Shale, chert, iron-formation, greywacke, turbidite, argillaceous limestone, matrix-supported conglomerate;

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]

Silurian
419.2 - 443.8 Ma



ID: 1725278
Terra Cotta Mountains Sandstone

Age: Silurian (419.2 - 443.8 Ma)

Stratigraphic Name: Terra Cotta Mountains Sandstone

Description: Medium olive gray to terra cotta, medium-to coarse-grained, thin-bedded to massive, calcareous lithic sandstone, and siltstone containing local gray shale intervals and minor pebble conglomerate beds. Sandstones have well developed oscillation ripple marks, flute clasts, and planer crossbedding. Limey beds of lower part of the unit are thought to be equivalent of Lower Limestone member of Churkin and Carter (1996). Dillinger Subterrane

Lithology: Sedimentary

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


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