| Computer Code: |
SDHI |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Llanvirn Series (OE)
— Caradoc Series (O4) |
| Lithological Description: |
Quartz gabbro and microgabbro. |
| Definition of Lower Boundary: |
Not applicable. |
| Definition of Upper Boundary: |
Not applicable. |
| Thickness: |
573m |
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Not Available (!)
|
| Previous Name(s): |
St David's Head Intrusion [Obsolete Name and Code: Use SDHI]
(-3663)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Roach, R A, 1969. The composit nature of the St. David's Head and Carn Llidi intrusions of north Pembrokshire. 409-433 in The Pre-Cambrian and Lower Palaeozoic rocks of Wales. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
