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Pui des Folles seamount, Mid-Atlantic Ridge complex, Atlantic Oceani
Regional Level Types
Pui des Folles seamountSeamount
Mid-Atlantic Ridge complexMid-Ocean Ridge
Atlantic OceanOcean

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Latitude & Longitude (WGS84):
20° 30' 29'' North , 45° 38' 30'' West
Latitude & Longitude (decimal):
20.50830,-45.64170
GRN:
N14W31
Type:
Seamount
Mindat Locality ID:
445506
Long-form identifier:
mindat:1:2:445506:9
GUID (UUID V4):
0


Macroscopically studied samples of Fe-Mn Puy de Folles are represented by weakly cemented and loose aggregates of brown color. On the surface, there are earthy formations of a mixture of secondary minerals of yellow-red color (limonite). We assume the presence of limonite (a collective name for mineral aggregates that are mixtures of iron hydroxides) by morphology and color, because in this case, the exact phase composition cannot be determined by optical microscopy.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

ⓘ Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
ⓘ Ferrihydrite
Formula: Fe3+10O14(OH)2
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘ Pyrolusite
Formula: Mn4+O2
ⓘ Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘPyrolusite4.DB.05Mn4+O2
ⓘTodorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
ⓘFerrihydrite4.FE.35Fe3+10O14(OH)2
ⓘBirnessite4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Group 9 - Silicates
ⓘNontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Hⓘ FerrihydriteFe103+O14(OH)2
Hⓘ GoethiteFe3+O(OH)
Hⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Hⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
OOxygen
Oⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Oⓘ FerrihydriteFe103+O14(OH)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Oⓘ PyrolusiteMn4+O2
Oⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
NaSodium
Naⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Naⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Naⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MgMagnesium
Mgⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
AlAluminium
Alⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Alⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
SiSilicon
Siⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
KPotassium
Kⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
CaCalcium
Caⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Caⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MnManganese
Mnⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Mnⓘ PyrolusiteMn4+O2
Mnⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
FeIron
Feⓘ FerrihydriteFe103+O14(OH)2
Feⓘ GoethiteFe3+O(OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SrStrontium
Srⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
BaBarium
Baⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
Atlantic OceanOcean

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References

[1]Sergienko, Elena S., Tarakhovskaya, Elena R., Rodinkov, Oleg V., Yanson, Svetlana Yu., Pankin, Dmitrii V., Kozlov, Valery S., Gareev, Kamil G., Bugrov, Alexander N., Kharitonskii, Petr V. (2024) Biogenic Origin of Fe-Mn Crusts from Hydrothermal Fields of the Mid-Atlantic Ridge, Puy de Folles Volcano Region. Geosciences, 14 (9). doi:10.3390/geosciences14090240
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