BGS mineralogy and petrology collection record

Sample number S23180; COLLNOL100;
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Coarse Sub-Basic Porphyritic Sill (Group 3) : Baked (Stage Ii) Agm'
Stratigraphy Not entered
Comments ?120 ft olivine-basalt sill in baked sandstone (Lower ORS scored out): compare with S. 23395 - 23396 from same sill outside aureole; Ayrshire Memoir, p. 36
Locality details On scarp feature 1200 yds S 38 deg E from cairn, Blackside
50k map sheet Kilmarnock (22)

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Map reference NS 5984 3018
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


S23180

Cross Polarized, S23180

Plane Polarized, S23180

Plane Polarized, S23180