Bumps in the Bay
Sunday 23 September 2018 14:30 - 16:30
In this talk, Professor Dan Bosence of Royal Holloway University, London will describe how the remarkable seafloor images of Weymouth Bay obtained by Dorset Wildlife Trust's DORIS project led to new insights into the classic geology of Dorset's Jurassic Coast.
Large circular structures have been discovered in the Purbeck Limestone that have not previously been seen in any of the coastal cliffs or quarries from Durlston Bay to Portland despite over a hundred years of geological research.
The talk will describe the dome-shaped structures visible in the DORIS data and discuss their possible modes of formation. Possible mechanisms for their origin include a type of organic reef built up on the floor of the large ancient lake system that deposited the Purbeck limestones. Dorset Wildlife Trust's Peter Tinsley will also give a brief introduction about the DORIS project which in effect 'peeled back the sea' revealing Dorset's seabed in exquisite detail for the first time.
This talk will appeal to anyone interested in finding out about the detailed seabed formations revealed by the DORIS project and how that relates to our geological knowledge of the Jurassic Coast World Heritage Site. It will also highlight the fascinating variety of seabed types in Dorset which give rise to the diversity of wildlife and habitats found here.
Venue:The Etches Collection\nMuseum of Jurassic Marine Life, Kimmeridge, Dorset BH20 5PE. For more information or to reserve a seat contact Kimmeridge@dorsetwildlifetrust.org.uk or telephone: 01929 481044. No ticket price but a suggested donation payable on the day. Spaces are limited but to ensure your place, seats can be reserved. The venue is wheelchair friendly. Refreshments may be purchased across the road at Clavell's Restaurant after the talk.
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