Not deterred by COVID-19 the local North Devon geology group were still determined to have their autumn lecture series and so on 9th October Andrew presented to them via internet conferencing software.
The talk covered a wide range of topics from the tectonic and glacially influenced history of the basin, through to its economic prospectivity. Despite the presence of thick lower Jurassic Liassic sediments with an average total organic carbon content of 2.7%wt and burial to an estimated 3km, this interval has not been heated sufficiently to generate hydrocarbons.
New publicly released borehole and bathymetric data, connected with a variety of Bristol Channel Basin projects, has both renewed interest in this asymmetric basin and lead to a better understanding of its evolutionary history, particularly the last 2.6Ma (Quaternary).
