The BGS Lexicon of Named Rock Units — Result Details
Lower Chalk Formation and Middle Chalk Formation (Undifferentiated)
Computer Code: | LMCK | Preferred Map Code: | notEntered |
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Status Code: | Index Level | ||
Age range: | Cenomanian Age (KE) — Turonian Age (KT) | ||
Lithological Description: | Names remain in informal use but are generally regarded as obsolete. Composite consisting of two or more rock units. See the entries for the constituent units for more information. | ||
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: | none recorded or not applicable | ||
Previous Name(s): | none recorded or not applicable | ||
Alternative Name(s): | Middle Chalk Formation Lower Chalk Formation |
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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: | |||
E341 E342 E343 |