Mudstone formations can be formed rapidly
In the past, evolutionists had an argument for saying that mudstone needed calm water to form, and was therefore incompatible with the idea of a worldwide flood. Richard reveals how more recent research has demonstrated that mudstone and many other rocks are in fact able to be formed rapidly, making them compatible with the model of the Flood.
(Image from https://www.geograph.org.uk/photo/40440 © Mick Garrett under CC Licence BY-SA 2.0. Cropped to square dimensions.)