| Computer Code: |
BROSD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Callovian Age (JC)
— Kimmeridgian Age (JD) |
| Lithological Description: |
Fine-grained friable sandstone with trough cross bedding and some lenticular quartz conglomerates. |
| Definition of Lower Boundary: |
Overlies the Clynelish Quarry Sandstone Member (CLYNQ). |
| Definition of Upper Boundary: |
Overlain by the Ardassie Limestone Member (ARDAL). |
| Thickness: |
At least 30 m. |
| Geographical Limits: |
Onshore area around Brora, on the Moray Firth, north-east Scotland. |
| Parent Unit: |
Clynekirkton Sandstone Formation (CYK)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Foreshore south of Ardassie Point [NC 911 038 to 913 041] exposes the uppermost beds of the member. |
| Partial Type Section |
Cliffs on the south bank of the River Brora [NC 905 039]. The base of the section is 540 m west of the A9 road bridge, running eastwards to the fault, 140 m east of the bridge. |
| Reference(s): |
| Barron, A J M, Lott, G K, and Riding, J B. 2012. Stratigraphical framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf. British Geological Survey Research Report RR/11/06. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
