BGS mineralogy and petrology collection record

Sample number	MR27142; COLLNODAN571;
Sample Donor	Dangerfield,J.; Merriman,R.J.;
Rock name	'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Dolerite, intrusive into Lingula Flags..
Locality details	Craig-y-tan quarry: at 200 yds due N of Trawsfyneydd station Merioneth
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 714 364
Year collected	1964
Bore name	Not applicable
Confidentiality	No restrictions