The BGS Lexicon of Named Rock Units — Result Details

Middle Chalk Formation And Upper Chalk Formation (Undifferentiated) [Names Remain In Informal Use But Are Generally Regarded As Obsolete]

Computer Code: MUCK Preferred Map Code: notEntered
Status Code: Index Level
Age range: Turonian Age (KT) — Campanian Age (KC)
Lithological Description: See the Lithology descriptions for the component formations.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: none recorded or not applicable
Parent Unit: Chalk Group (CK)
Previous Name(s): Upper Chalk Formation And Middle Chalk Formation (Undifferentiated) [Obsolete Code: Use MUCK] (UMCK)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E130 E241 E269