Tal y Fan, Northern Snowdonia, Conwy, Wales, UK
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|Latitude & Longitude (WGS84):||53° 14' 5'' North , 3° 54' 10'' West|
|Latitude & Longitude (decimal):||53.2349438923, -3.90303218818|
|UK National Grid Reference:||SH730726|
|Other/historical region names associated with this locality:||Gwynedd; Caernarvonshire|
|Other regions containing this locality:||Snowdonia National Park, Wales, UK|
Ref.: Eur. J. Mineral. , 1993, 5, pp. 925-935.
Greenschist facies Ordovician metabasite intrusions.
Ref.: Bevins, R.E. and Merriman, R.J. (1988) Compositional controls on coexisting prehnite-actinolite and prehnite-pumpellyite facies assemblages in the Tal y Fan metabasite intrusion, North Wales: implications for Caledonian metamorphic field gradients. Journal of Metamorphic Geology, 6, 17-39.
note: Grid ref. is for the summit of Tal y Fan and is not a specific location.
11 valid minerals.
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