| Computer Code: |
TEAS |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Paleocene Epoch (GP)
— Paleocene Epoch (GP) |
| Lithological Description: |
The Teal Sandstone Member consists of fine to coarse grained sandstone with minor interbedded mudstone. The sandstone is moderately to poorly sorted, often with a grey muddy matrix. |
| Definition of Lower Boundary: |
Where mudstone is present at the base of the Sele Formation, the base of the Teal Sandstone Member is taken at a sharp downward change from sandstone to dark grey mudstone, associated with an increase in gamma-ray values and a decrease in velocity (e.g. 3/30a-3). Elsewhere, the sandstone rests directly on Lista mudstone (e.g. 9/8-3). |
| Definition of Upper Boundary: |
The top of the Teal Sandstone member is taken at a downward change from dark grey, laminated mudstone to sandstone, associated with a decrease in gamma-ray values and an increase in velocity. A low-gamma mudstone unit, representing the uppermost part of Sele unit 1b (refer to Sele Formation), rests on the sandstone in some sections. |
| Thickness: |
Reaches thicknesses in the order of 100 m. |
| Geographical Limits: |
The Teal Sandstone Member is restricted to North Viking Graben. |
| Parent Unit: |
Sele Formation (SELE)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
North Sea well 9/08- 3: 1670.5-1778 m (5480-5834 ft) (Knox and Holloway, 1992). |
| Type Section |
North Sea well 3/30a- 3: 2265.5-2368.5 m (7433-7770 ft) below KB (Knox and Holloway, 1992). |
| Reference(s): |
| Knox, R W O'B and Holloway, S. 1992. 1. Paleogene of the Central and Northern North Sea. In: Knox, R W O'B and Cordey, W G (eds.) Lithostratigraphic nomenclature of the UK North Sea. British Geological Survey, Nottingham. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
