Tag: DGAG Talk Series

Talk – Continental collision in the Alps

Dorset Geologist’s Association Group (DGAG) will host a talk on the Tuesday 21st April 2026.
Title: Continental collision in the Alps
Speaker: Giles Droop (DGAG member and former University lecturer)
Time: Talk will start at 7pm; finish approximately 8pm
Venue:  Activity Meeting Room: Dorford Centre, Bridport Road, Dorchester, DT1 1RR
Lecture Entry Cost: All welcome: £6 non-members (£5 DGAG members), cash please.
Booking a seat: contact Chris Webb at email: events@dorsetgeologistsassociation.org
Talk Description: The European Alps are arguably the most thoroughly studied mountain belt on Earth and have become the ‘gold standard’ of belts formed by continental collision. However, in some ways the Alps are not typical because they are the product of an extended ‘train crash’ of micro-continents and small intervening ocean basins. In this talk I shall present evidence for the various continental and oceanic materials of various ages caught up in the collision zone and show how they have been tortured by plastic deformation and metamorphism, producing spectacular new structures, textures and minerals. I shall summarise how information from metamorphic mineral assemblages can be used to deduce the temperatures and pressures to which the various rock units were subjected, and how deep those units were subducted before being returned to the Earth’s surface by erosion and buoyancy forces.
Photo: European Alps-Tasch Weisshorn (Courtesy of speaker)

Talk -Managing Coastal Risk in Dorset

Dorset Geologist’s Association Group (DGAG) will host a talk on the Tuesday 20th January 2026.
Title: Managing Coastal Risk in Dorset
Speaker: Alan Frampton Strategy, Policy & Environment Manager (Bournemouth, Christchurch, Poole (BCP) council, SW Flood and Coastal division)
Time: Talk will start at 7pm; finish approximately 8pm
Venue:  Activity Meeting Room: Dorford Centre, Bridport Road, Dorchester, DT1 1RR
Lecture Entry Cost: All welcome: £6 non-members (£5 DGAG members), cash please.
Booking a seat: contact Chris Webb at email: events@dorsetgeologistsassociation.org
Talk Description: This promises to be a timely and valuable review of the coastal areas that we spend considerable effort in exploring. Likely allowing us to put into context the deep time view of the geology with the modern-day challenges.
The speaker has provided below a summary of topics to be covered.
• What are the risks of coastal flooding & erosion in Dorset?
• How do we manage those risks?
• What are some of the challenges for the future and how are we responding to them?
Photo: -Provisional (Courtesy of Dorset Coast Forum email) till a better one from the speaker.
Additional Links:
1.  Link to Dorset Coast forum and future projects, one of many references
https://www.dorsetcoasthaveyoursay.co.uk
2. Link to Southwest Flood & Coastal is a centre (hosted by the Bournemouth Christchurch Poole Council) for flood and coastal erosion risk management, addressing the challenges of flooding and coast change.
https://swfloodandcoastal.org.uk/about-swfac/

Talk – Offshore Ireland: An integrated Lithostratigraphic, Biostratigraphic and Sequence Stratigraphic Framework

Dorset Geologist’s Association Group (DGAG) will host a talk on the Tuesday 17th March 2026.
Title: The Standard Stratigraphic Nomenclature of Offshore Ireland: An integrated Lithostratigraphic, Biostratigraphic and Sequence Stratigraphic Framework
Speaker: Nigel Ainsworth (DGAG member)
Time: Talk will start at 7pm; finish approximately 8pm
Venue:  Activity Meeting Room: Dorford Centre, Bridport Road, Dorchester, DT1 1RR
Lecture Entry Cost: All welcome: £6 non-members (£5 for DGAG members), cash best.
Booking a seat: contact Chris Webb at email: events@dorsetgeologistsassociation.org
Talk Description:  A modern review completed in 2020 so will be fascinating insight into the geology of one our neighbours!
Speakers’ summary: To be provided nearer the time

Photo: Temporary courtesy of Government of Ireland website pending better one from the speaker

Additional Links:
1. Publication on which the talk is a summary of the work
https://www.gov.ie/en/department-of-climate-energy-and-the-environment/publications/the-standard-stratigraphic-nomenclature-of-ireland/