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:
Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK

Oldest recorded age at locality: 288
Youngest recorded age at locality: 274

mindat Locality ID: 292019
mindat URL: http://www.mindat.org/loc-292019.html

Tectonic Settings:

Total number of sublocalities beneath "Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°35'0"N
Longitude: 3°45'12"W
Decimal Degree (lat, lon): 50.583333333333,-3.7533333333333

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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

7 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Lucy_040a	281	279	280 ± 1	Rb-Sr	Preferred Age determined in study		E 38425, E 38426, E 38427, E 38429, E 38430, E 420	Yes		1620	Devon, England, UK	Dartmoor Granite	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159
Lucy_040b	280	280	280	Rb-Sr	Preliminary examindation yields age of Dartmoor as the second episode of Hercynian Magmatism.			Yes		1620	Devon, England, UK	Dartmoor Granite	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159	Statistically acceptable whole rock and/or mineral isochrons were obtained for each of the granites studies and a preliminary inspection of the tata may suggst several episodes of of Hercynian magmatism in SW England. The first, c.. 290 generated the Carnmenellis, Bodmin and St Austell granites and was succeeded some 10 Ma by the Dartmoor grantie, and finally the intrusion of the Land's End granite at 270 Ma. The emplacement of the porphyry dyke and the main phase of mineralization, would then be closely associated with the second and third magmatic episodes. However more detailed examintation of the data and comparison with other work reveals certain major discrepencies in the hypothesis.
Lucy_040c	288	274	281 ± 7	K-Ar	Previous age stated for the Dartmoor Granite			Yes		1620	Devon, England, UK	Dartmoor Granite	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159	In complete aggreement with the plateau ages of the 282 Ma for the Coombestone Tor and Gidleigh Tor.
Lucy_048	280	276	278 ± 2	Rb-Sr	Age granite intruded		E 44794, E 44794 KFeldspar, E 44794 Plag., E 44794			292019	Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK	Haytor West Quarry	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159	Isochron for minerals seperated from the Haytor West specimen, this age is within the error of the whole rock.
Lucy_180	287	285	287 - 285	Pb-U/Pb-Pb	Range of ages given with 206Pb/238U, 207Pb/235U and 207Pb/206Pb.	whole rock	CORN-158A (15,16)			292019	Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK	Haytor Quarry	Chen et al (1993)	10.1144/gsjgs.150.6.1183	JGSL150_1183	Analytical data for igneous monazites with sample and (analysis) numbers
Lucy_181	282.4	280.6	281.5 ± 0.9	40Ar-39Ar	Intergrated age of Cornubian Batholith	muscovite	CORN-158A		Muscovite	292019	Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK	Haytor Quarry	Chen et al (1993)	10.1144/gsjgs.150.6.1183	JGSL150_1183	Analytical data for micas
Lucy_182	280.8	278.6	279.7 ± 1.1	40Ar-39Ar	Intergrated age of Cornubian Batholith	biotite	CORN-158A			292019	Haytor Quarry, Ilsington, Teignbridge, Devon, England, UK	Haytor Quarry	Chen et al (1993)	10.1144/gsjgs.150.6.1183	JGSL150_1183	Analytical data for micas

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...