Abstract
The core recovered during a drilling programme in the Ballantrae ophiolite complex, south-west Scotland1,2 includes a 16-m section through highly fossiliferous strata. The borehole containing this section was sunk at North Ballaird (Fig. 1) 100-m west of the abandoned farm buildings [NGR: NX 1210 8777] with an azimuth of 150° and an inclination of 50°. The fossiliferous sequence lies between 24 and 40m from the surface (125 m above OD) and contains a rich assemblage of Middle Arenig (∼475–480 Myr) graptolites accompanied by inarticulate brachiopods and rare conodonts. Of particular importance is the presence of Pseudisograptus dumosus (Harris), an Australasian species not previously recorded from Europe.
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Stone, P., Strachan, I. A fossiliferous borehole section within the Ballantrae ophiolite. Nature 293, 455–457 (1981). https://doi.org/10.1038/293455a0
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DOI: https://doi.org/10.1038/293455a0
