The British Geological Survey just came out with a new video on Siccar Point, featuring some excellent drone video of the site (in very good weather!).
In addition to the unconformity, one of the things you will appreciate about the video is an excellent end-on view of a plunging synform exposed just above waterline:
You’ll get a much better sense of its shape by enjoying the motion of the drone’s perspective. Watch the whole video here:
Top notch video! Well done, BGS. Happy Friday all.
Another view: Men of Rock
https://youtu.be/FYfuI2uZLmg?t=32m19s