It's unusual for new submerged forest sites to be recorded in the summer or early autumn, but Storm Francis has exposed peat beds and tree stumps in a previously unknown site on the Ceredigion coast -- in the bay of Llanrhystyd. This is a long way south of Borth, about halfway between Aberystwyth and Aberaeron.
The discovery has been reported on the BBC web site. I will add it to the list.......
2 comments:
This is from the Cofelin record for the site: The exposure is capped by a layer of peat on average about 0.15m deep. It exhibits root systems, twigs/branches, plant macrofossils and even occasional tree stumps. This peat lies upon what appears to be an organic soil up to 0.15m deep, itself developed over a fine blue-grey anaerobic clay of roughly the same thickness. The entire eroding exposure rests directly upon a cryoturbated periglacial deposit consisting of highly compacted angular fragmented rock cemented in clay, the uppermost component of a local glacial head deposit itself containing broken and rounded locally-derived galets again strongly cemented in clay with occasional sands and gravels, best seen in cliff sections to the south.
https://coflein.gov.uk/en/site/417481/
This suggests there is till and fluvioglacial materials at the base, then above that a cryoturbated periglacial deposit, then c 15 cms of blue anaerobic clay, then an organic soil layer c 15 cms thick, then the peat with abundant organic remains.
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