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Trou de l'Enfer (Pointe de l'Enfer), Pivisy, Groix Island, Morbihan, Brittany, Francei
Regional Level Types
Trou de l'Enfer (Pointe de l'Enfer)- not defined -
Pivisy- not defined -
Groix IslandIsland
MorbihanDepartment
BrittanyRegion
FranceCountry

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Key
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Latitude & Longitude (WGS84): 47° 37' 23'' North , 3° 27' 51'' West
Latitude & Longitude (decimal): 47.62306,-3.46444
GeoHash:G#: gbmwcjt22
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Groix2,429 (2016)1.9km
Larmor-Plage9,151 (2016)11.1km
Gâvres815 (2016)11.5km
Port-Louis3,020 (2016)12.4km
Ploemeur20,652 (2016)12.5km


No description has been added for this locality. Can you add one?

Regions containing this locality

Eurasian PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p.12.
Chloritoid
Formula: (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 244.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 293.
Clinochlore var: Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 293.
Graphite
Formula: C
Reference: Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p.13.
Hematite
Formula: Fe2O3
Reference: Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p. 88.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 141.
'Mica Group'
Reference: Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p.12.
Quartz
Formula: SiO2
Reference: Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p.12.
Siderite
Formula: FeCO3
Reference: Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 141.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Chloritoid9.AF.85(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
var: Ripidolite9.EC.55(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Chloritoid52.3.3.1(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
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
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Clinochlore
var: Ripidolite
-(Mg,Fe,Al)6(Si,Al)4O10(OH)8
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
H Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
H ClinochloreMg5Al(AlSi3O10)(OH)8
CCarbon
C SideriteFeCO3
C GraphiteC
OOxygen
O Limonite(Fe,O,OH,H2O)
O SideriteFeCO3
O Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
O Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
O ClinochloreMg5Al(AlSi3O10)(OH)8
O QuartzSiO2
O AlbiteNa(AlSi3O8)
O HematiteFe2O3
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Al Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al AlbiteNa(AlSi3O8)
SiSilicon
Si Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Si Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si QuartzSiO2
Si AlbiteNa(AlSi3O8)
FeIron
Fe Limonite(Fe,O,OH,H2O)
Fe SideriteFeCO3
Fe Chloritoid(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Fe Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Fe HematiteFe2O3

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

Paleozoic - Neoproterozoic
251.902 - 1000 Ma



ID: 3148813
para-autochtonous unit

Age: Neoproterozoic to Triassic (251.902 - 1000 Ma)

Description: high grade metamorphic

Lithology: Mica schist

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Chauris, L. (2014) Minéraux de Bretagne, Les Editions du Piat, 141.
Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner (Guides Horay). Pierre Horay (Ed.), 224 pp.


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