BGS mineralogy and petrology collection record

Sample number MR8845
Sample Donor Not entered
Rock name Chert. 'Original entry: Chalk, With Flint'
Stratigraphy Turonian. Middle Chalk Formation And Upper Chalk Formation (Undifferentiated).
Comments Chalk, with flint,Upper Chalk,Upper Cretaceous,Collected byDr RL Sherlock RLS140
Locality details chalk pit 0.25 mile SSE of Whiteleaf Cross, 6.25 miles S of Aylesbury,
50k map sheet Aylesbury (238)

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Map reference
Year collected 1932 
Bore name Not applicable
Confidentiality No restrictions