BGS mineralogy and petrology collection record

Sample number E11073; COLLNO154;
Sample Donor Matley, C.A
Rock name 'Original entry: Autoclastic Melange. Crush Conglomerate.'
Stratigraphy Not entered
Comments Ordovician. Arenig. See Mem.Geol.of Anglesey.pp.289-290: Folded plate X111. Finely epiclastic. Anamorphism low. Feldspar.Fine phyllitic grit banded with phyllite.
Locality details Near Ynys-y-Fydlyn.
50k map sheet Holyhead (93)

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Map reference SH 292 917
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E11073

Cross Polarized, E11073

Plane Polarized, E11073

Plane Polarized, E11073