Foulport Mudstone Member

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Foulport Mudstone Member (FMN), Carboniferous, Midland Valley of Scotland[edit]

Foulport Mudstone Member is part of the Kinnesswood Formation.

Name[edit]

From Foul Port, Millport Bay, Great Cumbrae, Strathclyde.

Lithology[edit]

Red-brown silty mudstone with a few sandstones and beds with nodules of pedogenic limestone. See Paterson and Hall (1986)[1]; BGS (in press); BGS (in preparation).

Stratotype[edit]

The type area is the coast section at Foul Port (NS 157 546), Millport Bay, Great Cumbrae, Strathclyde.

Lower and upper boundaries[edit]

The lower boundary is conformable on the underlying Doughend Sandstone Member. It is marked by a change from yellow sandstone with a few concretionary nodules to red-brown mudstone and siltstone of the Foulport Mudstone Member (Monro, 1999; BGS in preparation).

The upper boundary is conformable and overlain by variegated sandstones with concretions of the West Bay Cornstone Member (Figure 6, Column 2).

Distribution and regional correlation[edit]

Cumbrae isles, Strathclyde

Thickness[edit]

About 200 m. BGS (2008)[2] gave a generalised thickness of 198 m for the member.

Age[edit]

Late Devonian? to Courceyan

References[edit]

  1. 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.
  2. British Geological Survey.2008.Dunoon and Millport. Scotland Sheet 29E with part of 21E. Bedrock and Superficial Deposits. 1:50.000. (Keyworth, Nottingham: British Geological Survey.)

Bibliography[edit]

British Geological Survey. Irvine. Scotland Sheet 22W and part of 21E. Bedrock. 1:50 000 Geology Series. (Keyworth, Nottingham: British Geological Survey.)

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.

British Geological Survey. Dunoon and Millport. Scotland Sheet 29E and part of 21E. Bedrock. 1:50 000 Geology Series. (Keyworth, Nottingham: British Geological Survey.)