|Professor Sarah Davies, Dr Andrea Snelling and |
Dr Carys Bennett examining the Tweed Basin core
|The 501m of fluvial and coastal plain|
sedimentary rocks from the Early
Carboniferous of the Tweed Basin
The core was laid out in its entirety in the BGS core store, so members of the team were able to see for the first time an almost complete record of the Early Carboniferous sedimentary succession, spanning 15 million years. The core is made up of three main lithologies: sandstones, mudstones and siltstones with occasional layers of gypsum/anhydrite and dolomite. With the whole core laid out we were able to see the intricate detail of the different rock types, the transitions between them and how they changed through time. It was easy to get lost in the fascinating sedimentary features, including evidence of ripples, fossils soils and burrowing, and not forgetting the fossil remains lurking within the sediment.
|Gypsum and anhydrite formed in a |
palaeo-sabkha in the Tweed Basin