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Comodoro Rivadavia, Escalante Department, Chubut Province, Argentinai
Regional Level Types
Comodoro Rivadavia- not defined -
Escalante DepartmentDepartment
Chubut ProvinceProvince
ArgentinaCountry

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Key
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Largest Settlements:
PlacePopulation
Comodoro Rivadavia140,850 (2016)


Elevation: 240 m asl.

Montmorillonite-Beidellite.

Escalante Department: near Comodoro Rivadavia, in the Cerro Chenque and Salamanca Formation - Tertiary period, as powerful banks or in pockets.

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

2 valid minerals.

Detailed Mineral List:

Beidellite
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Reference: Padrón de Minas de la Provincia de Chubut (2005).
'Beidellite-Montmorillonite Series'
Reference: Padrón de Minas de la Provincia de Chubut (2005).
'Glauconite'
Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Reference: Padrón de Minas de la Provincia de Chubut (2005).
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Padrón de Minas de la Provincia de Chubut (2005).

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
Beidellite9.EC.40(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Beidellite-Montmorillonite Series'-
'Glauconite'-(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
'Glauconite'71.2.2a.5(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Sheets of 6-membered rings with 2:1 clays
Beidellite71.3.1a.1(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified Minerals, Mixtures, etc.
'Beidellite-Montmorillonite Series'-

List of minerals for each chemical element

HHydrogen
H Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
OOxygen
O Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
NaSodium
Na Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
AlAluminium
Al Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
SiSilicon
Si Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
KPotassium
K Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
CaCalcium
Ca Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
FeIron
Fe Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

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

Tertiary - Cretaceous
2.588 - 145 Ma



ID: 3186162
Mesozoic-Cenozoic sedimentary rocks

Age: Phanerozoic (2.588 - 145 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]

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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Padrón de Minas de la Provincia de Chubut (2005).

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