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- -At- -<br />
_ T ~ x i<br />
.1 -<br />
arc<br />
A .<br />
46 cm Sphagnum (fuscum) peat above the<br />
volcanic ash layer . Site T12, southeast<br />
side of Sibbeston Lake .<br />
B . Close-up of the volcanic ash layer . Note the<br />
dark layer above the ash indicating that there<br />
was an intermediate vegetation type before the<br />
Sphagnum was re-established after the ash fall .