| Computer Code: |
KILDN |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Bathonian Age (JN)
— Bathonian Age (JN) |
| Lithological Description: |
Dominated by silty fissile mudstones intercalated with shell beds, shelly limestones, bone beds and one sandstone bed (Emeleus, 1997, appendix 1). The biota comprises bivalves, conchostracans, gastropods and plants (ferns), shark teeth and plesiosaur bones. There is a prominent bed of stromatolitic algal limestone, 0.20 m thick, with gypsum pseudomorphs at the top of the member recognisable throughout the Hebrides Basin. |
| Definition of Lower Boundary: |
As for parent formation. |
| Definition of Upper Boundary: |
Overlain by the Lonfearn Member (LONFN). |
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Island of Eigg, and Trotternish district, Skye, north-west Scotland. |
| Parent Unit: |
Lealt Shale Formation (LASH)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Coastal exposure [NM 495 870], 23 m thick, located 2.5 km north of Kildonnan, Eigg (Harris and Hudson, 1980, fig. 6; Hudson and Harris, 1979, fig. 5). |
| Reference Section |
Outcrops at the Lealt River and cliffs north of the Lealt River mouth, Trotternish [NG 515 604]. The different exposures in this area can be readily correlated using marker beds, and a composite section has been made by Hudson and Harris (1979, figs. 2 to 4). |
| 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. |
| Emeleus, C H. 1997. Geology of Rum and the adjacent islands. Memoir (sheet) of the Geological Survey of Great Britain (Scotland) (60). (The Stationery Office for the British Geological Survey.) 171pp. |
| Harris, J P and Hudson, J D. 1980. Lithostratigraphy of the Great Estuarine Group (Middle Jurassic), Inner Hebrides. Scottish Journal of Geology, Vol.16(2/3), 231-250. |
| Hudson, J D and Harris, J P. 1979. Sedimentology of the Great Estuarine Group (Middle Jurassic) of north-west Scotland. Symposium sur la Sedimentation de Jurassique Ouest Europeen, Paris, 9-10 May 1977, Association des Sedimentologists Francais, Publication Speciale, No.1, 1-13. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S060
|
