BGS mineralogy and petrology collection record

Sample number	E29591; MR26608; COLLNOYG4076;
Sample Donor	Smith,D.B.
Rock name	'Original entry: "Chalky" Limestone'
Stratigraphy	Not entered
Comments	Grey white Dolomitic Limestone ? Gypsiferous
Locality details	NCB Durham Offshore No4 BH 238'
50k map sheet	Sunderland (21) View images in GeoScenic related to 'Sunderland' View the geology near 'Sunderland'
Map reference	NZ 46168 58117
Year collected	Not entered
Bore name	Ncb Durham Offshore
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.