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Alkali Lake, Lake Co., Oregon, USA

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Latitude & Longitude (WGS84): 42° 58' 30'' North , 120° 1' 30'' West
Latitude & Longitude (decimal): 42.97500,-120.02500
GeoHash:G#: 9rdskz27w
Locality type:Lake
Köppen climate type:Csb : Warm-summer Mediterranean climate


ref: Am.Min.54:1034

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Formicaite ?
Formula: Ca(HCOO)2
Reference: Gunnar Färber - Mineralienliste 1-2018
Gaylussite
Formula: Na2Ca(CO3)2 · 5H2O
Reference: Am.Min.54:1034
Magadiite
Formula: Na2Si14O29 · 11H2O
Reference: Am. Min. 54:1034
Nahcolite
Formula: NaHCO3
Reference: Gunnar Färber
Natron
Formula: Na2CO3 · 10H2O
Reference: Am.Min.54:1034
Qilianshanite
Formula: NaHCO3 · H3BO3 · 2H2O
Reference: Gunnar Färber
Thermonatrite
Formula: Na2CO3 · H2O
Reference: Am.Min.54:1034
Trona
Formula: Na3H(CO3)2 · 2H2O
Reference: Am.Min.54:1034

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
'Gaylussite'5.CB.35Na2Ca(CO3)2 · 5H2O
'Nahcolite'5.AA.15NaHCO3
'Natron'5.CB.10Na2CO3 · 10H2O
'Thermonatrite'5.CB.05Na2CO3 · H2O
'Trona'5.CB.15Na3H(CO3)2 · 2H2O
Group 6 - Borates
'Qilianshanite'6.H0.55NaHCO3 · H3BO3 · 2H2O
Group 9 - Silicates
'Magadiite'9.EA.20Na2Si14O29 · 11H2O
Group 10 - Organic Compounds
'Formicaite' ?10.AA.05Ca(HCOO)2

List of minerals arranged by Dana 8th Edition classification

Group 13 - ACID CARBONATES
Miscellaneous
Nahcolite13.1.1.1NaHCO3
Trona13.1.4.1Na3H(CO3)2 · 2H2O
Group 15 - HYDRATED NORMAL CARBONATES
A(XO3)·xH2O
Natron15.1.2.1Na2CO3 · 10H2O
Thermonatrite15.1.1.1Na2CO3 · H2O
AmBn(XO3)p·xH2O, with (m+n):p > 1:1
Gaylussite15.2.2.1Na2Ca(CO3)2 · 5H2O
Group 17 - COMPOUND CARBONATES
Miscellaneous
Qilianshanite17.1.13.1NaHCO3 · H3BO3 · 2H2O
Group 78 - Unclassified Silicates
Magadiite78.7.12.1Na2Si14O29 · 11H2O
Unclassified Minerals, Rocks, etc.
Formicaite ?-Ca(HCOO)2

List of minerals for each chemical element

HHydrogen
H FormicaiteCa(HCOO)2
H GaylussiteNa2Ca(CO3)2 · 5H2O
H MagadiiteNa2Si14O29 · 11H2O
H NahcoliteNaHCO3
H NatronNa2CO3 · 10H2O
H QilianshaniteNaHCO3 · H3BO3 · 2H2O
H ThermonatriteNa2CO3 · H2O
H TronaNa3H(CO3)2 · 2H2O
BBoron
B QilianshaniteNaHCO3 · H3BO3 · 2H2O
CCarbon
C FormicaiteCa(HCOO)2
C GaylussiteNa2Ca(CO3)2 · 5H2O
C NahcoliteNaHCO3
C NatronNa2CO3 · 10H2O
C QilianshaniteNaHCO3 · H3BO3 · 2H2O
C ThermonatriteNa2CO3 · H2O
C TronaNa3H(CO3)2 · 2H2O
OOxygen
O FormicaiteCa(HCOO)2
O GaylussiteNa2Ca(CO3)2 · 5H2O
O MagadiiteNa2Si14O29 · 11H2O
O NahcoliteNaHCO3
O NatronNa2CO3 · 10H2O
O QilianshaniteNaHCO3 · H3BO3 · 2H2O
O ThermonatriteNa2CO3 · H2O
O TronaNa3H(CO3)2 · 2H2O
NaSodium
Na GaylussiteNa2Ca(CO3)2 · 5H2O
Na MagadiiteNa2Si14O29 · 11H2O
Na NahcoliteNaHCO3
Na NatronNa2CO3 · 10H2O
Na QilianshaniteNaHCO3 · H3BO3 · 2H2O
Na ThermonatriteNa2CO3 · H2O
Na TronaNa3H(CO3)2 · 2H2O
SiSilicon
Si MagadiiteNa2Si14O29 · 11H2O
CaCalcium
Ca FormicaiteCa(HCOO)2
Ca GaylussiteNa2Ca(CO3)2 · 5H2O

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

Quaternary
0 - 2.588 Ma



ID: 1454639
Quaternary surficial deposits; Playa lake deposits

Age: Pleistocene (0 - 2.588 Ma)

Description: Playa deposits; unconsolidated rocks; fine grained sediments; lacustrine; clay to sand grains

Lithology: Major:: {mixed playa sediment} Minor:: {evaporite}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Holocene
0 - 0.0117 Ma



ID: 2823058
Playa deposits

Age: Anthropocene (0 - 0.0117 Ma)

Description: Clay, silt, sand, and some evaporites

Lithology: Major:{clay,silt,sand}, Minor:{evaporite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

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]

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


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