BGS mineralogy and petrology collection record

Sample number S18770; S18770/A; COLLNO2005;
Sample Donor Flett,J.S.
Rock name 'Original entry: Sub-Basic Coarse Porphyrite (Group 3) :Baked Stage Iii-Iv. Agm'
Stratigraphy Not entered
Comments Sill (?6 ft), just W of N - cuts baked Lower ORS; probably same dyke as S. 23323; Ayrshire Memoir, p. 37
Locality details In stream, 0.25 mile NW of Hart Hill, Loudoun Hill (30 yds above small tributary)
50k map sheet Kilmarnock (22)

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Map reference NS 5997 3195
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


S18770

Cross Polarized, S18770

Plane Polarized, S18770

Plane Polarized, S18770


S18770/A

Cross Polarized, S18770/A

Plane Polarized, S18770/A

Plane Polarized, S18770/A