Wednesday, 25 September, 2024 starts at 19:30
Crosthwaite Parish Rooms
Main Street
Keswick
CA12 5NN
Speaker, David Boote
In 1788 James Hutton first recognised the importance of ‘deep time’ when studying a mid-late Devonian unconformity at Siccar Point, SE Scotland – shattering earlier suggestions of a 6000 year old earth by the Venerable Bede (3952BC), Johannes Keplar (3992 BC), Bishop Ussher (4004BC) and even Isaac Newton (~ 3992BC). The unconformity can be traced west across the western side of the Pennines and flanks of the Lake District Dome with coarse pebbly sandstones and conglomerates of late Devonian-basal Carboniferous age resting on highly deformed Lower Palaeozoic rocks. It marks the end of the Acadian (Caledonian) Orogeny, when mountain ranges deformed by the collision between Laurussia and Baltica-Avalonia continental plates, were worn down and transgressed by Carboniferous limestones and sands. The Lake District was subsequently blanketed by Late Palaeozoic and Mesozoic sediments interrupted by intermittent periods of exhumation, culminating with Cenozoic unroofing of the Lower Palaeozoic core exposed today.
2024 CGS DRDB Basal Carboniferous Unconformity
A table has been booked at the Cassa Bella restaurant in Keswick for 6 people including the speaker before the lecture. We are now unable to book a large table together so if anyone wants to organise booking their own table there is an easy online booking system at www.casabellakeswick.co.uk The booking form has a ‘Notes’ box so it might be worth filling it in to ask for a table near the table that’s already booked for the Speaker. (Quote the Booking Reference R7NR4N for 25/09/24 and RPNR4B for 09/10/24 in the name of David Steele from 17.45pm) Depending on the positions of the tables we are given on the night it may hopefully work out that we can all chat together.
Please register your interest to attend
https://www.cumberland-geol-soc.org.uk/events/the-basal-unconformity-of-the-carboniferous-upper-devonian-northwest-england/
The basal unconformity of the Carboniferous-Upper Devonian, Northwest England
