BGS mineralogy and petrology collection record

Sample number	E66265; COLLNOALD1;
Sample Donor	Aldiss, D.T.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Calcrete; Fieldbrash, superficial deposit on Upper Chalk
Locality details	Open Field at Colthall, 50 m SW of A507. Between Baldock and Buntingford
50k map sheet	Hitchin (221) View images in GeoScenic related to 'Hitchin' View a geological map near 'Hitchin'
Map reference	TL 2747 3206
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.