| Computer Code: |
GYF |
Preferred Map Code: |
GHY |
| Status Code: |
Full |
| Age range: |
Early Devonian Epoch (DL)
— Early Devonian Epoch (DL) |
| Lithological Description: |
Red conglomerates, with sandstones and rare mudstones. The conglomerates are interpreted to be principally all of 'Highland' provenance. |
| Definition of Lower Boundary: |
The base of the lowest conglomerate above Loup's Bridge, resting on poorly sorted muddy sandstone of the Cromlix Mudstone Formation [NO 5947 7165]. |
| Definition of Upper Boundary: |
The top of the clast-supported orthoconglomerate beds immediately downstream of Loup's Bridge [NO 5948 7164], which are overlain by the Teith Sandstone Formation. |
| Thickness: |
250 m thick. |
| Geographical Limits: |
The Edzell area, where it is laterally equivalent in part to the Teith Sandstone Formation and the Strathfinella Hill Conglomerate Member. |
| Parent Unit: |
Strathmore Group (SEG)
|
| Previous Name(s): |
Gannochy Formation [Obsolete Name and Code: Use EDS, GYF, STHC, THF]
(-4633)
|
| Alternative Name(s): |
Strathfinella Hill Conglomerate
|
| Stratotypes: |
| Type Section |
Stream section in the River North Esk. |
| Reference(s): |
| Geology of the Fettercairn area, 1:10000 sheets NO67NW, NO67NE, NO67SW, NO67SE and NO68SE (south of the Highland Boundary Fault) : part of 1:50000 sheets 66E (Banchory), 66W (Aboyne), 57W (Forfar) and 57E (Montrose): British Geological Survey, Onshore Geology Series, Technical report WA/95/91 |
| Browne, M A E, Smith, R A, and Aitken, A M. 2002. Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. British Geological Survey Research Report RR/01/04. 67 pp. |
| Armstrong, M, and Paterson, I B. 1970. The Lower Old Red Sandstone of the Strathmore Region. Report of the Institute of Geological Sciences No. 70/12 |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S066
S066
S057
|
