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

Ages for Pyrrhotite at Bramcrag Quarry, St John's In The Vale, Threlkeld, Eden, Cumbria, England, UK

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 340Ma - 235Ma at this locality

Locality age (remote)

Excel ID	Max Age (Ma)	Min Age (Ma)	Minerals explicitely stated as having this age	Dated Locality ID	Dated Locality	Ref	Ref ID
JGS171_49_001	245	235	Hematite	25832	Cumbria, England, UK	Crowley et al. (2014)	JGS171_49
Kristen000268	316	316		4865	Threlkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000269	329	329		4865	Threlkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000270	331	331		4865	Threlkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000271	272	272		1432	Brundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000272	284	284		1432	Brundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000273	332	332		1432	Brundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000274	340	340		1432	Brundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521