Computer Code: |
NHBB |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Floian Age (OFL)
— Darriwilian Age (ODW) |
Lithological Description: |
Chlorite-muscovite schist and phyllite, semipelite and psammite and volcaniclastic psammite. |
Definition of Lower Boundary: |
Unconformable upon Coeden Formation (NSC). |
Definition of Upper Boundary: |
Stratigraphic nature unknown - overthrust by Hen Felin Thrust. |
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
Anglesey. |
Parent Unit: |
Llanfechell Group (LFEC)
|
Previous Name(s): |
Bodelwyn Beds [Obsolete Name and Code: Use NHBB]
(-4811)
|
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: |
none recorded or not applicable |