BGS mineralogy and petrology collection record

Sample number S55464; COLLNOYC2197;
Sample Donor Mykura,W.
Rock name 'Original entry: Silicified Carbonated Porphyritic Trachyte'
Stratigraphy Not entered
Comments ?Carbonatite dyke up to 4' 9" thick, cuts sandstone; central, non-chilled part, Vol. LV, p. 561, Bull GSGB, No 40, pp. 76, 77 (part analysis)
Locality details Noss island, NW shore, 450 yds NE of Gungstie
50k map sheet West Shetland and South Shetland ? (126)

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Map reference HU 534 414
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


S55464

Cross Polarized, S55464

Plane Polarized, S55464

Plane Polarized, S55464