Rock 365 : Day 249 : Arenig Sediments
Day 249 : In the field near St David's, Pembrokeshire. These are Ordovician sediments at Porthmelgan showing ripple marks and bedding / cleavage relationships.
Day 249 : In the field near St David's, Pembrokeshire. These are Ordovician sediments at Porthmelgan showing ripple marks and bedding / cleavage relationships.
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