PESGB Member? Log in
 

News

Registration now open

Registration now open for Brittle Deformation, Hydrocarbon Generation And Fluid Migration, Triassic-Lower Jurassic, North Somerset. Find out more here 

 

This field trip will make observations from superbly exposed outcrops along the north Somerset coast (inverted southern margin of the Bristol Channel Basin) that reveal interactions between hydrocarbon generation, elevated pore pressures and resultantly enhanced deformation. We will infer the migration of overpressured fluids through the crust from a diversity of phenomena including sandstone dykes, reduction zones and mineralized hydrofractures (see photo), mud volcanoes (see photo), and low-angle faulting. Understanding links between maturation of organic matter and brittle deformation is of wide interest because it is increasingly clear that hydrocarbon generation and expulsion is a central process in creating the pathways that allow fluids to migrate from source to reservoir.

 

The north Somerset coast is one of the best places in the world to examine brittle deformation processes and many generations of MSc students have been there. Like a 3D seismic survey, it combines a continuous cliff line (‘vertical seismic profile’) and extensive foreshore (‘time slice’). We will stay in a traditional hotel-pub in the small market town of Dunster, in the shadow of the Quantock hills, with all the outcrops to be visited located within a 40-minute drive from the hotel. Distances to be walked are no more than a few kilometres but the foreshore can be uneven and slippery in places. Dunster is famous for its imposing Norman castle with ruined tower and impressive medieval gateway, now owned by the National Trust and with opportunities to visit in the evenings.

Posted on: January 30, 2017

Events RSS Feed Events

Surviving the Downturn Workshop February

February 28

Surviving the Downturn Workshop - Social Media Impact

Surviving the Downturn Coffee Morning ...

March 7

Surviving the Downturn Coffee Morning

See all events

News RSS Feed News

Registration now open

Brittle Deformation, Hydrocarbon Generation And Fluid Migration, Triassic-Lower Jurassic, North Somerset

Posted on: January 30, 2017

Getting More Value from Geophysics

 … seminars!

Posted on: January 17, 2017

Free Place available

Posted on: January 16, 2017


See all news

© PESGB 2017
PESGB, 7th Floor, No1. Croydon, 12-16 Addiscombe Road, Croydon, CR0 0XT. Charity Number: 1085619
Tel: +44 (0)20 7408 2000 Fax: +44 (0)20 7408 2050 Email: pesgb@pesgb.org.uk
© PESGB 2010