BGS mineralogy and petrology collection record

Sample number S23309; COLLNOL159;
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Sub-Basic Porphyrite (Group 1) Agm'
Stratigraphy Not entered
Comments 9 ft NW dyke (cuts Lower ORS and another dyke), metamorphosed, ?andesite , ?olivine-basalt; Ayrshire Memoir, pp. 33, 37
Locality details Changue Glen 865 yds W 12 deg S from Mid Tulloch
50k map sheet Kilmarnock (22)

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Map reference NS 5782 3590
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


S23309

Cross Polarized, S23309

Plane Polarized, S23309

Plane Polarized, S23309