| Computer Code: |
KTLA |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Selandian Age (GS)
— Selandian Age (GS) |
| Lithological Description: |
The Kettla Formation consists primarily of dark grey-green tuffaceous siltstone grading to silty tuffite, which occurs as two units separated by a thin unit of mudstone. No cores are available and the precise nature of the tuffaceous material has not been established. The tuffaceous lithologies display characteristic low-gamma, high-velocity, high-density and high-resistivity wireline-log signatures. |
| 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: |
The Kettla Formation is restricted to basinal areas of Quadrants 206 and 214. |
| Parent Unit: |
Faroe Group (FARO)
|
| Previous Name(s): |
Kettla Member [Obsolete Name and Code: Use KTLA]
(-4993)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
North Sea well 214/27- 2: 3347-3385.5 m (10981-11107 ft) (Knox et al., 1997). |
| Reference Section |
North Sea well 206/02- 1A: 3540.5-3553 m (11616-11657 ft) (Knox et al., 1997). |
| Reference(s): |
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) |
| Knox, R W O'B, Holloway, S, Kirby, G A and Baily, H E. 1997. Stratigraphic nomenclature of the UK North West Margin. 2. Early Paleogene lithostratigraphy and sequence stratigraphy. British Geological Survey, Nottingham. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
