Yorkshire Philosophical Society

Event Information

Rocks, Fossils and Ice Ages at Flamborough

A walk from Danes Dyke to Sewerby

Wednesday 10th May 2023 10.30 AM

£5 per person(to be collected on the day)

Paul Hildreth of Yorkshire Geological Society will lead us in a circular walk along the shore between Danes Dyke and Sewerby (c. 2km) returning along the cliff top path. Total distance 3.5km.

Meet at Danes Dyke Car Park (TA 216692) at 10.30am. Car Parking fees payable at ticket machine. There is also a small café and WC facilities.

Access to shore from Danes Dyke is via a path leading down a ravine cut into glacial deposits.

There will be opportunities to study a complex of Quaternary glacial and periglacial deposits at Danes Dyke and the buried cliff at Sewerby which defines the start of Holderness and represents a pre-Devensian sea cliff with older (Ipswichian) deposits at its foot.

Between Danes Dyke and Sewerby, the cliffs and wave-cut platform are in Upper Cretaceous chalk of the Flamborough Formation. We will traverse approximately 70 metres of flint-free chalk working our way up the succession through the biozones of Marsupites testudinarius and Sphenoceramus lingua and, with luck and a keen eye, find the index fossils.

Halfway to Sewerby we will begin to find an increasing number of sponge fossils until we reach the Flamborough Sponge Bed, famous for its well-preserved, varied and 3-dimensional specimens.

Egress from the beach at Sewerby is via a set of concrete steps. If needed, there are facilities available at Sewerby Hall before we return to Danes Dyke Car Park along the cliff top path.

A copy of this flyer in Word csn be downloaded by clicking here Danes Dyke flyer

To book, please send the completed details as below by email to ypsgeology@gmail.com   (preferred)

Or return the booking form below to the Lodge

YPS terms and conditions apply. See the website https://www.ypsyork.org/groups/social-group/yps-activities-booking-terms-conditions-2/  or ask at the Lodge

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Danes Dyke to Sewerby Wednesday 10th May 2023

Meet at Danes Dyke Car Park 10.30am

To:  ypsgeology@gmail.com

Or Paul Thornley c/o YPS, The Lodge, Museum Gardens, York, YO1 7DR

Please reserve …….. place(s) for me/us at £5 pp. (payable on the day)

Name(s) ………………………………………………………………………………………………………………………………………………………………………

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Address ………………………………………………………………………………………………………………………………………………………

Tel. No. …………………………………..…………………………………Mobile…………………………………..…………………………………

(A mobile number is very useful if we need to contact you on the day)

Email*…………………………………………………………………………..…………………

*Acknowledgement will be by email. Please enclose SAE if postal acknowledgement required instead.

Please note that this trip begins at Danes Dyke, near Flamborough, without arrangements for transport from York.

If you wish to attend, but cannot make arrangements for transport, please state this below and we will see if we can offer advice.