BGS mineralogy and petrology collection record

Sample number	E32016; COLLNOKB293;
Sample Donor	Beer,K.E.
Rock name	'Original entry: Altered Lamprophyre (Olivine Biotite)'
Stratigraphy	Not entered
Comments	Small exposure of jointed dyke rock in bank. 5-10 Ft. thick. Vertical ?
Locality details	River Lew, W. bank. 350 Yds. N. 28 deg. W. of Gubbleford Bridge.
50k map sheet	Okehampton (324) View images in GeoScenic related to 'Okehampton' View the geology near 'Okehampton'
Map reference	SS 528 016
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.