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A Miocene palynoflora preserved by karstic subsidence in Anglesey and the origin of the Menaian Surface

Published online by Cambridge University Press:  01 May 2009

Peter Walsh ,
Iwona Morawiecka  and
Krystyna Skawińska-Wieser
Peter Walsh
Affiliation:
Katedra Geomorfologii, Uniwersytet Śląski, ul. Będzińska 60, 41-200 Sosnowiec, Poland
Iwona Morawiecka
Affiliation:
Katedra Geomorfologii, Uniwersytet Śląski, ul. Będzińska 60, 41-200 Sosnowiec, Poland
Krystyna Skawińska-Wieser
Affiliation:
Zakład Paleobotaniki, Instytut Botaniki, P.A.N., ul. Lubicz 46, 31-512 Kraków, Poland
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Abstract

A fossil flora of Miocene age has been preserved by karstic agencies in a solution subsidence complex developed in a large exotic block of limestone, part of the Gwna Group mélange (?Cambrian), at Trwyn y Parc, Cemaes Bay, Anglesey. The flora suggests that the Menaian Surface and the Snowdonian Mountain block were already well established landscape features by the end of the Miocene. The wider geomorphological implications of the find are briefly discussed.

Type
Articles
Information
Geological Magazine , Volume 133 , Issue 6 , November 1996 , pp. 713 - 719
Copyright
Copyright © Cambridge University Press 1996

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