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TAG mound, Trans-Atlantic Geotraverse hydrothermal field (TAG), Mid-Atlantic Ridge complex, Atlantic Oceani
Regional Level Types
TAG mound- not defined -
Trans-Atlantic Geotraverse hydrothermal field (TAG)- not defined -
Mid-Atlantic Ridge complexMid-Ocean Ridge
Atlantic OceanOcean

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Latitude & Longitude (WGS84):
26° 8' 22'' North , 44° 49' 54'' West
Latitude & Longitude (decimal):
26.13972,-44.83194
GeoHash:
G#: eh8heyd6g
GRN:
N18W29
Mindat Locality ID:
206067
Long-form identifier:
mindat:1:2:206067:8
GUID (UUID V4):
0


The TAG mound, about 3,650 meters below sea level, is approximately 200m in diameter and up to 50m high. It is located on the east margin of the Mid-Atlantic ridge axial valley.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


30 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'α-Brass'
Formula: Cu3Zn
ⓘ Anhydrite
Formula: CaSO4
ⓘ Aragonite
Formula: CaCO3
ⓘ Atacamite
Formula: Cu2(OH)3Cl
ⓘ Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Covellite
Formula: CuS
ⓘ Digenite
Formula: Cu9S5
ⓘ Galena
Formula: PbS
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Idaite
Formula: Cu5FeS6
ⓘ Jarosite
Formula: KFe3+3(SO4)2(OH)6
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
ⓘ Marcasite
Formula: FeS2
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold
Formula: Au
ⓘ Native Sulphur
Formula: S8
ⓘ Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Paragonite
Formula: NaAl2(AlSi3O10)(OH)2
ⓘ Paratacamite
Formula: Cu3(Cu,Zn)(OH)6Cl2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sphalerite
Formula: ZnS
ⓘ Wurtzite
Formula: (Zn,Fe)S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
ⓘ'α-Brass'1.AB.10aCu3Zn
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘDigenite2.BA.10Cu9S5
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘIdaite2.CB.15aCu5FeS6
ⓘWurtzite2.CB.45(Zn,Fe)S
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 3 - Halides
ⓘAtacamite3.DA.10aCu2(OH)3Cl
ⓘParatacamite3.DA.10cCu3(Cu,Zn)(OH)6Cl2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘRutile4.DB.05TiO2
ⓘBirnessite4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘParagonite9.EC.15NaAl2(AlSi3O10)(OH)2
ⓘNontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hⓘ AtacamiteCu2(OH)3Cl
Hⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ JarositeKFe33+(SO4)2(OH)6
Hⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Hⓘ OpalSiO2 · nH2O
Hⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Hⓘ ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ AragoniteCaCO3
Oⓘ AtacamiteCu2(OH)3Cl
Oⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ GoethiteFe3+O(OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ JarositeKFe33+(SO4)2(OH)6
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Oⓘ OpalSiO2 · nH2O
Oⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Oⓘ ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Olivine GroupM2SiO4
NaSodium
Naⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Naⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Naⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
AlAluminium
Alⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Alⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Siⓘ OpalSiO2 · nH2O
Siⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Olivine GroupM2SiO4
SSulfur
Sⓘ AnhydriteCaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ DigeniteCu9S5
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ IdaiteCu5FeS6
Sⓘ JarositeKFe33+(SO4)2(OH)6
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Native SulphurS8
Sⓘ Wurtzite(Zn,Fe)S
ClChlorine
Clⓘ AtacamiteCu2(OH)3Cl
Clⓘ ParatacamiteCu3(Cu,Zn)(OH)6Cl2
KPotassium
Kⓘ JarositeKFe33+(SO4)2(OH)6
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ AragoniteCaCO3
Caⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Caⓘ CalciteCaCO3
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ RutileTiO2
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
MnManganese
Mnⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ IdaiteCu5FeS6
Feⓘ JarositeKFe33+(SO4)2(OH)6
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feⓘ Wurtzite(Zn,Fe)S
CuCopper
Cuⓘ AtacamiteCu2(OH)3Cl
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS
Cuⓘ Native CopperCu
Cuⓘ DigeniteCu9S5
Cuⓘ IdaiteCu5FeS6
Cuⓘ ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Cuⓘ α-BrassCu3Zn
ZnZinc
Znⓘ ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Znⓘ SphaleriteZnS
Znⓘ Wurtzite(Zn,Fe)S
Znⓘ α-BrassCu3Zn
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
Atlantic OceanOcean

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Thompson, G., S. E. Humphris, B. Schroeder, M. Sulanowska, & P. A. Rona (1988), Active vents and massive sulfides at 26 degrees N (TAG) and 23 degrees N (Snakepit) on the Mid-Atlantic Ridge: Canadian Mineralogist: 26: 697-711
Mozgova, N.N., Borodaev, Y.S., Stepanova, T.V., Cherkashev, G.A., and Zhirnov, E.A. (2000): Noble Metals in Sulfide Assemblages from Deep Sectors of the Active TAG Mound (Mid-Atlantic Ridge, 26°08' N). Lithology and Mineral Resources 35(1), 1-18.
Petersen, S., Herzig, P. M., Hannington, M. D. (2000) Third dimension of a presently forming VMS deposit: TAG hydrothermal mound, Mid-Atlantic Ridge, 26°N. Mineralium Deposita, 35 (2) 233-259 doi:10.1007/s001260050018
Shaoyong Jiang, Tao Yang, Liang Li, Kuidong Zhao, and Hongfei Ling (2006): Lead and sulfur isotopic compositions of sulfides from the TAG hydrothermal field, Mid-Atlantic ridge. Acta Petrologica Sinica 22(10), 2597-2602.
Fallon, Emily, Frische, Matthias, Petersen, Sven, Brooker, Richard, Scott, Thomas (2019) Geological, Mineralogical and Textural Impacts on the Distribution of Environmentally Toxic Trace Elements in Seafloor Massive Sulfide Occurrences. Minerals, 9 (3) 162 doi:10.3390/min9030162
Wang, S., & Chang, L. (2022). Rock Magnetic Signatures of Hydrothermal Mineralization in the Trans‐Atlantic Geotraverse (TAG) Hydrothermal Field. Geochemistry, Geophysics, Geosystems, 23(5), e2022GC010368.
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