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References

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== Strathclyde Group [http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=SYG (SYG)], Carboniferous, Midland Valley of Scotland ==
===Name===
Previously Upper Oil Shale Group (URO); Lower Oil Shale Group (LRO); Oil-Shale Group; Calciferous Sandstone Measures (CSM)

===Lithology===
Sandstone, siltstone, mudstone and seatrock, with some coal seams, ironstones and limestones; non-marine faunas common; marine faunal bands rare except in top part.
===Stratotype ===
Glasgow area, Strathclyde, Scotland. (Reference Sections: See Type Sections of components: [[Clyde Plateau Volcanic Formation]], [[Kirkwood Formation]], [[Lawmuir Formation]], [[Gullane Formation]], [[Aberlady Formation]], [[West Lothian Oil-Shale Formation]], [[Arthur’s Seat Volcanic Formation ]] and [[Garleton Hills Volcanic Formation]]). Reference Section: coastal sections, east Fife: Pathhead Beds, Sandy Craig Beds, Pittenweem Beds, Anstruther Beds, Fife Ness Beds.
===Lower and upper boundaries===
Definition of Lower Boundary: In west at base of [[Clyde Plateau Volcanic Formation]]; in east at base of [[Gullane Formation]] or [[Arthur’s Seat Volcanic Formation ]]. Conformable or (locally) unconformable.
Definition of Upper Boundary: Conformable at base of [[Lower Limestone Formation]].

===Thickness===
To c.1500m.

===Geographical limits===
Midland Valley of Scotland.

===Age===
Chadian Age (CI) — Brigantian Age (CX).

=== References ===
Paterson, I B and Hall, I H S, 1986. Lithostratigraphy of the late Devonian and early Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Report, 18/3.

Chisholm, J I, MacAdam, A D, Brand, P J. 1989. Lithostratigraphical classification of Upper Devonian and Lower Carboniferous rocks in the Lothians. British Geological Survey Technical Report, WA/89/26.

Forsyth, I H and Chisholm, J I, 1977. The geology of east Fife. Memoirs of the Geological Survey of Great Britain.

McGregor, A G, 1960. Divisions of the Carboniferous on Geological Survey Scottish maps. Bulletin of the Geological Survey of Great Britain, No.16, p.127-130.

=== Formal subdivisions ===

'''Western Midland Valley of Scotland:'''

[[Birgidale Formation]]

[[Laggan Cottage Mudstone Formation]]

[[Clyde Plateau Volcanic Formation]]

[[Kirkwood Formation]]

[[Lawmuir Formation]]

'''Fife:'''

[[Fife Ness Formation]]

[[Anstruther Formation]]

[[Pittenweem Formation]]

[[Sandy Craig Formation]]

[[Pathhead Formation]]

'''West Lothian:'''

[[Arthur’s Seat Volcanic Formation]]

[[Gullane Formation]]

[[West Lothian Oil Shale Formation]]

'''East Lothian:'''

[[Garleton Hills Volcanic Formation ]]

[[Gullane Formation]]

[[Aberlady Formation]]

== References ==
<references/>
[[Category:Carboniferous lithostratigraphical nomenclature]]

Strathclyde Group - Revision history

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