It consists of both a series of faults and associated folds which were active during the mountain-building period known as the Variscan orogeny.
[1] The Disturbance is responsible for a number of significant landscape features along its 50 km length.
The geologically complex mountain of Cribarth also lies on the Disturbance and indeed gives its name to the feature.
[2][3] The Cribarth Disturbance is one of the southernmost geological features within Britain which can be described as following the Caledonoid trend.
The phrase describes a suite of major northeast-southwest oriented geological structures associated with the closure of the former Iapetus Ocean in the middle Palaeozoic Era and giving rise to the Caledonian Orogeny or mountain-building period.