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 Sphalerite at Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 395Ma - 235Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
Kristen000264	395	395				4773	Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
JGS171_49_001	245	235		Hematite		25832	Cumbria, England, UK	Crowley et al. (2014)	JGS171_49

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
Kristen000257	345	345				4754	Yewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000258	362	362				4754	Yewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000259	360	360				4726	Goldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000260	362	362				4726	Goldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000261	381	381				4773	Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000262	369	369				4773	Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000263	362	362				4773	Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521
Kristen000264	395	395				4773	Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK	Ineson and Mitchell (1974)	GM111_521

Locality age (remote)

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
JGS171_49_001	245	235		Hematite		25832	Cumbria, England, UK	Crowley et al. (2014)	JGS171_49