XIII.— The Succession between Plean No. 1 Limestone and No. 2 Marine Band in the Carboniferous of the East Glasgow Area

Abstract

1. Summary Previous research on the strata between Plean No. 1 Limestone and No. 2 Marine Band in the East Glasgow Area is reviewed, and the nature of the strata in the type area near Stirling indicated. Recent sections from boreholes are described, and the section in Garngad Quarry revised. Other sections are re-interpreted in the light of this new evidence. The presence of Plean No. 1 Limestone and the absence of the Castlecary Limestone over most of the East Glasgow Area are demonstrated. Plean No. 2 Limestone and Nos. 0, 1 and 2 marine bands of the Scottish Millstone Grit (now called the Passage Group) are shown to be intermittently represented. The faunas are re-examined, and that from the Garngad railway cutting is found to have strong affinities with those from the beds associated with the Calmy Limestone and Plean No. 1 Limestone. 2. Introduction The area dealt with in this paper is shown in the sketch-map (Fig. 1), and mostly falls within six-inch sheets Lanark 6 N.E., 6 S.E., 7 N.W. and 7 S.W., revised geological editions of which were published in 1958 as a result of re-survey by the author. This paper is intended to explain the re-interpretation of the strata shown on these maps. The strata described are all of Upper Eumorphoceras (E2) age (Currie, 1954, p. 535). They lie at the top of the Upper Limestone Group of the Scottish Carboniferous Limestone Series and the base of the Scottish Millstone Grit, recently renamed the Passage This 250-word extract was created in the absence of an abstract