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:
Road 10 Roadcuts, Tórshavn, Streymoy Island, Faroe Islands, Denmark

Oldest recorded age at locality: 5498
Youngest recorded age at locality: 0.87

mindat Locality ID: 130774
mindat URL: http://www.mindat.org/loc-130774.html

Tectonic Settings:

Total number of sublocalities beneath "Road 10 Roadcuts, Tórshavn, Streymoy Island, Faroe Islands, Denmark": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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: Al Ca H Na O Si 

Elements from minerals reported directly at this locality: Al Ca H Na O Si 

Structural Groups for minerals in this locality: 
NoneThomsonite

1 IMA Minerals at location:
Thomsonite-Ca  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O490.870452



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0001397Strike: ENE-WSW: Dextral strike-slip, unknown displacement. Fault zone ranges from ~1.0-3.0 m thick displaying crack seal veins parallel to the main fault zone. Veins are typically 1-2 cm thick, but locally total vein thickness is up to ~30 cm thick, comprising multiple crack seal type veins and breccia zones. Wall rock contained within veins indicate stage opening of fractures, which linked to form through-going faults.
Jen_0001398Strike: ENE-WSW: Dextral strike-slip, unknown displacement. Fault zone ranges from ~1.0-3.0 m thick displaying crack seal veins parallel to the main fault zone. Veins are typically 1-2 cm thick, but locally total vein thickness is up to ~30 cm thick, comprising multiple crack seal type veins and breccia zones. Wall rock contained within veins indicate stage opening of fractures, which linked to form through-going faults.
Jen_0001399Strike: ENE-WSW: ~4-5m displacement (dextral oblique) accommodated across a 0.1 m to 2.0 m fault core and damage zone, which varies in thickness and fault rock type depending on the host lithology: basaltic units disaggregate to form breccias; volcaniclastic units are dragged into the master fault plane forming discrete extension and extensional-shear veins. Fault damage varies both along strike and up/down dip of the master fault, becoming much thinner through the volcaniclastic horizon. Brecciated calcite in veins indicates multiple slip events accommodated across the fault zone.
Jen_0001400Strike: ENE-WSW: ~4-5m displacement (dextral oblique) accommodated across a 0.1 m to 2.0 m fault core and damage zone, which varies in thickness and fault rock type depending on the host lithology: basaltic units disaggregate to form breccias; volcaniclastic units are dragged into the master fault plane forming discrete extension and extensional-shear veins. Fault damage varies both along strike and up/down dip of the master fault, becoming much thinner through the volcaniclastic horizon. Brecciated calcite in veins indicates multiple slip events accommodated across the fault zone.
Jen_0001401Strike: NNE-SSW: Dextral oblique slip, cuts and offsets ESE-WNW dikes. Displacement estimated to be about 20 m based on dike offset. Fault shows crack seal texture with calcite mineralisation, and local breccia of host rock with calcite fill, up to 20 cm thick.
Jen_0001402Strike: NNE-SSW: Dextral oblique slip, cuts and offsets ESE-WNW dikes. Displacement estimated to be about 20 m based on dike offset. Fault shows crack seal texture with calcite mineralisation, and local breccia of host rock with calcite fill, up to 20 cm thick.
Jen_0001403Strike: E-W: Dextral oblique-slip fault with 2-5 cm displacement, accommodated across a 2-30 cm thick fault zone. Fault damage zone comprises minor extension mode fractures, with zeolite mineralisation. Fault core zone displays crack seal type veins of calcite, zeolite, and bitumen. Bitumen staining is observed locally within calcite.
Jen_0001404Strike: E-W: Dextral oblique-slip fault with 2-5 cm displacement, accommodated across a 2-30 cm thick fault zone. Fault damage zone comprises minor extension mode fractures, with zeolite mineralisation. Fault core zone displays crack seal type veins of calcite, zeolite, and bitumen. Bitumen staining is observed locally within calcite.
Jen_0001405Strike: ESE-WNW: Sinistral oblique slip, unknown displacement; sub-parallel to, and cuts dike. Fault zone is up to 2 m thick, comprising fracture mesh damage zone and locally brecciated fault core. Crack seal veins line the fault core and locally form part of the central breccia. Central breccia hosts euhedral calcite, and zeolite on calcite crystal faces.
Jen_0001406Strike: ESE-WNW: Sinistral oblique slip, unknown displacement; sub-parallel to, and cuts dike. Fault zone is up to 2 m thick, comprising fracture mesh damage zone and locally brecciated fault core. Crack seal veins line the fault core and locally form part of the central breccia. Central breccia hosts euhedral calcite, and zeolite on calcite crystal faces.
Jen_0001407Strike: ENE-WSW: ~4-5m displacement (dextral oblique) accommodated across a 0.1 m to 2.0 m fault core and damage zone, which varies in thickness and fault rock type depending on the host lithology: basaltic units disaggregate to form breccias; volcaniclastic units are dragged into the master fault plane forming discrete extension and extensional-shear veins. Fault damage varies both along strike and up/down dip of the master fault, becoming much thinner through the volcaniclastic horizon. Brecciated calcite in veins indicates multiple slip events accommodated across the fault zone.
Jen_0001408Strike: ENE-WSW: ~4-5m displacement (dextral oblique) accommodated across a 0.1 m to 2.0 m fault core and damage zone, which varies in thickness and fault rock type depending on the host lithology: basaltic units disaggregate to form breccias; volcaniclastic units are dragged into the master fault plane forming discrete extension and extensional-shear veins. Fault damage varies both along strike and up/down dip of the master fault, becoming much thinner through the volcaniclastic horizon. Brecciated calcite in veins indicates multiple slip events accommodated across the fault zone.
Jen_0001409Strike: ENE-WSW: Unknown displacement. Directional opening along minor fractures in the damage zone suggests dextral slip. Fault zone comprises a zone of calcite fill, up to 50 cm thick, which show euhedral calcite growth around 10-20 cm size blocks of basalt host rock. Breccia fragments appear to be selfsupporting across fault thickness, with mineral fill growing radially around blocks. Locally mineralisation is incomplete, showing vugs up to 1-5 cm across, which display euhedral calcite and zeolite mineralisation on calcite crystal faces.
Jen_0001410Strike: ENE-WSW: Unknown displacement. Directional opening along minor fractures in the damage zone suggests dextral slip. Fault zone comprises a zone of calcite fill, up to 50 cm thick, which show euhedral calcite growth around 10-20 cm size blocks of basalt host rock. Breccia fragments appear to be selfsupporting across fault thickness, with mineral fill growing radially around blocks. Locally mineralisation is incomplete, showing vugs up to 1-5 cm across, which display euhedral calcite and zeolite mineralisation on calcite crystal faces.
Jen_0001411Strike: NE-SW: Dextral oblique slip, unknown displacement (possibly ~80 m based on ESE-WNW dike offset across Tjornuvik bay), hosted partially within a NE-SW dike. Fault zone comprises mesh of zeolite and calcite crack seal type veins.
Jen_0001412Strike: NE-SW: Dextral oblique slip, unknown displacement (possibly ~80 m based on ESE-WNW dike offset across Tjornuvik bay), hosted partially within a NE-SW dike. Fault zone comprises mesh of zeolite and calcite crack seal type veins.
Jen_0001413Apparent opening mode vein with complex crack-seal vein system forming fault core zone (see supplementary figure LEY samples: E-F), and peripheral veins forming damage zone (up to 50 cm from fault core). Fault core and damage zone hosts calcite veins with zeolite overgrowth (1-2 mm thick), suggesting incomplete mineral filling during calcite precipitation. Fault records several stages of fault formation as demonstrated by cross-cutting calcite and zeolite veins in fault core. It is important to note that the hosting fault is adjacent to a NE-SW-striking Set 3 fault of unknown displacement.
Jen_0001414Apparent opening mode vein with complex crack-seal vein system forming fault core zone (see supplementary figure LEY samples: E-F), and peripheral veins forming damage zone (up to 50 cm from fault core). Fault core and damage zone hosts calcite veins with zeolite overgrowth (1-2 mm thick), suggesting incomplete mineral filling during calcite precipitation. Fault records several stages of fault formation as demonstrated by cross-cutting calcite and zeolite veins in fault core. It is important to note that the hosting fault is adjacent to a NE-SW-striking Set 3 fault of unknown displacement.


18 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
Jen_000139746.842.844.8 ± 2.0U-Pbage of brittle faultingcalciteTJN-0-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001398503250105021 ± 11Pb-Pbage of brittle faultinglowcalciteTJN-0-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000139947.242.244.7 ± 2.5U-Pbage of fault slipcalciteMOL-1-2 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001400516748274997 ± 170Pb-Pbage of fault sliplowcalciteMOL-1-2 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000140143.639.841.7 ± 1.9U-Pbage of brittle faultingcalciteTJN-5-2 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001402549847585128 ± 370Pb-Pbage of brittle faultinglowcalciteTJN-5-2 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_00014034339.241.1 ± 1.9U-Pbage of brittle faultingcalciteTOR-1-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001404512249745048 ± 74Pb-Pbage of brittle faultinglowcalciteTOR-1-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_00014054932.840.9 ± 8.1U-Pbage of brittle faultingcalciteTJN-1-3 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001406524150215131 ± 110Pb-Pbage of brittle faultinglowcalciteTJN-1-3 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000140744.935.340.1 ± 4.8U-Pbage of fault slipcalciteMOL-1-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_00014080.910.870.89 ± 0.02Pb-Pbage of fault slipcalciteMOL-1-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000140939.635.837.7 ± 1.9U-Pbage of brittle faultingcalciteTJN-6-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_00014100.910.870.89 ± 0.02Pb-Pbage of brittle faultingcalciteTJN-6-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000141117.515.116.3 ± 1.2U-Pbage of brittle faultingcalciteTJN-2-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001412505349555004 ± 49Pb-Pbage of brittle faultinglowcalciteTJN-2-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_000141312.310.111.2 ± 1.1U-Pbage of brittle faultingcalciteLEY-2-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 
Jen_0001414520050685134 ± 66Pb-Pbage of brittle faultinglowcalciteLEY-2-1 YesCalcite  43314Streymoy Island, Faroe Islands, DenmarkStreymoy IslandRoberts and Walker (2016)10.1130/G37868.1G44_531 


SampleSource LocalityReference URL


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