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:
Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UK

Oldest recorded age at locality: 294
Youngest recorded age at locality: 276

mindat Locality ID: 260361
mindat URL: http://www.mindat.org/loc-260361.html

Tectonic Settings:

Total number of sublocalities beneath "Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°10'4"N
Longitude: 5°10'21"W
Decimal Degree (lat, lon): 50.167777777778,-5.1725

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.

No IMA Minerals occur at this locality according to mindat

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
Lucy_022a294276285 ± 9Rb-Sr dataAge granite intruded C 1, C 1 KFeldpsar, C 1 Plag., C 1 Bio., C 1 Musc.    260361Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UKRosemanawas QuarryDarbyshire et al. (1985)10.1144/gsjgs.142.6.1159JGSL142_1159 
Lucy_022b292288290 ± 2Rb-Sr dataC 1 mineral isochron appears to give a better estimate of the age of the Carnmenellis granite than the whole rock regression line. C 1, C 1 KFeldpsar, C 1 Plag., C 1 Bio., C 1 Musc.    260361Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UKRosemanawas QuarryDarbyshire et al. (1985)10.1144/gsjgs.142.6.1159JGSL142_1159Circuation of hydrothermal fluids thre does not appear to have caused widespread resetting.


SampleSource LocalityReference URL


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