2020
SH6347 : Rhyolite blocks in tuff
taken 4 years ago, near to Croesor, Gwynedd, Wales
Rhyolite blocks in tuff
Some sort of density flow or slide is indicated here, where it appears that solidified blocks of rhyolite have been brecciated and incorporated into a subsequent ash flow. Spaniel for scale, length approx 50cm. See also
SH6347 : Nodular tuff.
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