| Computer Code: |
HAT |
Preferred Map Code: |
Hat |
| Status Code: |
Full |
| Age range: |
Givetian Age (DV)
— Givetian Age (DV) |
| Lithological Description: |
Well-cemented fine-, medium- and evenly coarse-grained sandstone, with sporadic granule and clay intraclasts and pebbly horizons. |
| Definition of Lower Boundary: |
Slightly unconformable on Lyre Geo Sandstone Member; base marked by grade-laminated sandstones. |
| Definition of Upper Boundary: |
Top marked by grade-laminated sandstones at top of pebble-bearing sandstone sequence. |
| Thickness: |
195m at Regal Burn ND 2804 9803 to ND 2937 9756, Hoy Island, Orkney. |
| Geographical Limits: |
Orkney Islands. |
| Parent Unit: |
Hoy Sandstone Formation (HOY)
|
| Previous Name(s): |
Haist Sandstone Member [Obsolete Name and Code: Use HAT]
(-1585)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Stream section in Regal Burn, Hoy Island, Orkney. |
| Reference(s): |
| McAlpine, A, 1978. The Upper Old Red Sandstone of Orkney, Caithness and adjacent areas. PhD Thesis, University of Newcastle-upon-Tyne. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S117
S119
|
