Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Castle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK

Oldest recorded age at locality: 277.1
Youngest recorded age at locality: 266

mindat Locality ID: 221607
mindat URL: http://www.mindat.org/loc-221607.html

Tectonic Settings:

Total number of sublocalities beneath "Castle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°9'29"N
Longitude: 5°31'12"W
Decimal Degree (lat, lon): 50.158055555556,-5.52

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.

Feldspar	None	Tourmaline

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 B Fe H K Na O Si

Elements from minerals reported directly at this locality: Al B Fe H K Na O Si

Structural Groups for minerals in this locality:
Feldspar None Tourmaline

2 IMA Minerals at location:

Orthoclase ()*	Schorl ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	277.1	266	0		2349
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	277.1	266	0		2705

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Lucy_014	Age of granite

3 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	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Lucy_014	270	266	268 ± 2	87Sr/86Sr ratio, Rb-Sr.	Age granite intruded		E 38249, E 38250, E 38251		221607	Castle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK	Castle and Dinas Quarry	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159
Lucy_166	277.1	276.7	277.1 - 276.7	Pb-U/Pb-Pb	Range of ages given with 206Pb/238U, 207Pb/235U and 207Pb/206Pb.	whole rock	CORN-217 (3,4)		221607	Castle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK	Castle-an-Dinas Quarry	Chen et al (1993)	10.1144/gsjgs.150.6.1183	JGSL150_1183	Analytical data for igneous monazites with sample and (analysis) numbers
Lucy_167	273.2	272	272.6 ± 0.6	40Ar-39Ar	Intergrated age of Cornubian Batholith	muscovite	CORN-217	Muscovite	221607	Castle-an-Dinas Quarry, Higher Trenowin, Ludgvan, Cornwall, England, UK	Castle-an-Dinas 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...