Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
L'Ecarpière, Gétigné, Loire-Atlantique, Pays De La Loire, France

Oldest recorded age at locality: 290
Youngest recorded age at locality: 210

mindat Locality ID: 19663
mindat URL: http://www.mindat.org/loc-19663.html

Tectonic Settings:

Total number of sublocalities beneath "L'Ecarpière, Gétigné, Loire-Atlantique, Pays De La Loire, France": 0
Total number of bottom-level sublocalities: 0

Latitude: 47°5'39"N
Longitude: 1°11'21"W
Decimal Degree (lat, lon): 47.094166666667,-1.1891666666667
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ca F Fe H Na O P S U 

Elements from minerals reported directly at this locality: Ca F Fe H Na O P S U 

Structural Groups for minerals in this locality: 
AutuniteFluoriteGypsumLeydetiteMarcasiteNonePyriteZippeite

10 IMA Minerals at location:
Autunite  (*)Deliensite  (*)Fluorite  (*)Gypsum  (*)Leydetite  (*)
Marcasite  (*)Natrozippeite  (*)Pyrite  (*)Uraninite  (*)Uranopilite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O29027001272
Deliensite  (*)NoneFe2+(UO2)2(SO4)2(OH)2·7H2O290270014
Fluorite  (*)FluoriteCaF229021009617
Gypsum  (*)GypsumCa(SO4)·2H2O29021006890
Leydetite  (*)LeydetiteFe(UO2)(SO4)2·11H2O29027003
Marcasite  (*)MarcasiteFeS229021005674
Natrozippeite  (*)ZippeiteNa5(UO2)8(SO4)4O5(OH)3·12H2O290270041
Pyrite  (*)PyriteFeS2290210039462
Uraninite  (*)FluoriteUO229027002718
Uranopilite  (*)None(UO2)6(SO4)O2(OH)6·14H2O290270094


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000658The L'Ecarpière locality is found within the Mortagne mining district. The mine is responsible for the production of 3120 tons of Uraniium metal. It is part of the Armorican Massif.
Giersdorf_00000658aThe L'Ecarpière locality is found within the Mortagne mining district. The mine is responsible for the production of 3120 tons of Uraniium metal. It is part of the Armorican Massif.


2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Giersdorf_00000658290270290-270U-PbThe age of mineralization being post-cooling of the 300-340 Ma granite bodies restricts the formation of the Uranium minerals to being genetically derived.     U19663L'Ecarpière, Gétigné, Loire-Atlantique, Pays De La Loire, FranceL'EcarpièreChauris et al. (1994) PMGFRA_243Age of the uranium mineralization in the Armorican Massif is associated with Hercynian peraluminous granites. From pg. 262: "The precise chronology of these mineralizations is not well established. The uranium veins appear to be the oldest (290-270 Ma by U/Pb dating) but underwent late remobilization processes."
Giersdorf_00000658a230210230-210K-ArThe age of mineralization being post-cooling of the 300-340 Ma granite bodies restricts the formation of the Uranium minerals to being genetically derived.     Pb, Zn19663L'Ecarpière, Gétigné, Loire-Atlantique, Pays De La Loire, FranceL'EcarpièreChauris et al. (1994) PMGFRA_243from pg 262: "The lead-zinc veins (230-210 Ma, K-Ar dating) seem to be the youngest and the antimony veins are of intermediate age"

SampleSource LocalityReference URL

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