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A Late-Midlandian Section at Finglas River, near Waterville, Kerry

R. H. Bryant
Proceedings of the Royal Irish Academy. Section B: Biological, Geological, and Chemical Science
Vol. 74 (1974), pp. 161-178
Published by: Royal Irish Academy
Stable URL: http://www.jstor.org/stable/20518945
Page Count: 18
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A Late-Midlandian Section at Finglas River, near Waterville, Kerry
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Abstract

The detailed examination of a section exposed in the bank of the Finglas River provides some new information about Late (Upper)-Midlandian stratigraphy on the Iveragh peninsula in Kerry. The exposure cuts through two terraces, the lower being composed of postglacial fluviatile sediments and peat, whereas the upper is a glacial outwash feature, related to a nearby end-moraine system which is one of an approximately coeval series of similar moraines in the area. The outwash sediments are disturbed by periglacial involutions and overlain by a freshwater detritus mud. Pollen and macrofossil analyses reveal this to be of Late-glacial type. Radiocarbon dates of 9,220 B.C. and 10,000 B.C. obtained respectively from the top and bottom of the deposit confirm this assessment. It is argued that climatic amelioration marking the beginning of the Late-glacial interstadial took place some time before 10,000 B.C. The two cold episodes represented by the outwash sediments and the involutions in the section are considered to older than 11,000 B.C. and are therefore phases in the main Midlandian glaciation of Ireland, rather than cold oscillations in the Late-glacial period.

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