BGS mineralogy and petrology collection record

Sample number E46366; E46366/A; E46366/B; E46366/C; E46366/D; E46366/E; COLLNOBP138;
Sample Donor Lowe,D.J.
Rock name 'Original entry: Mudstone'
Stratigraphy Not entered
Comments Interbedded ? with Arenig mudstones.
Locality details BH. 9A, Fishguard-Bangor trunk Rd, A487 improvement at Pont Liont, Caernarvon. 70 m. at 280 deg. from road bridge over Afon Saint.
50k map sheet Caernarfon (105)

View images in GeoScenic related to 'Caernarfon'

View the geology near 'Caernarfon'

Map reference SH 4827 6172
Year collected Not entered 
Bore name Bh.9a.
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E46366/A

Cross Polarized, E46366/A

Plane Polarized, E46366/A

Plane Polarized, E46366/A


E46366/B

Cross Polarized, E46366/B

Plane Polarized, E46366/B

Plane Polarized, E46366/B


E46366/C

Cross Polarized, E46366/C

Plane Polarized, E46366/C

Plane Polarized, E46366/C


E46366/D

Cross Polarized, E46366/D

Plane Polarized, E46366/D

Plane Polarized, E46366/D


E46366/E

Cross Polarized, E46366/E

Plane Polarized, E46366/E

Plane Polarized, E46366/E