My idea is this, i believe the tsunamis caused by the slides could have created enough tidal energy to create a wall of water, sediments and gravels, that was capable of travelling inland as far as Yarm, firstly using the Esk Valley then Leven Valley, and the now deep beck valleys etc.
3 - Stainton gravel bed deposits the red outline marks the gravel bed, the yellow outline marks the grey organic layer above.
3 - Close up of the Stainton gravel beds taken by my good friend Andy Cooper a local Geologist, showing organic remains, i have since discovered Human and animal bones in the gravel beds.
4 - Please note how many separate compact layers of sand and clays the gravel beds are covered by.
5 - The gravel beds in this image are exposed at Maltby beck shown just above the spade handle, the gravel beds here only a short distance from the Stainton deposits, look to have been cut through by the beck a lot earlier than at Stainton, possibly thousands of years, hence the lack of fossils and sub fossils at Maltby beck.
The lower deposits are as yet a total mystery.
This theory would go a long way towards explaining my Geological descoveries in the south west area of Cleveland, but it would be an amazing surge of water needed to travel this far inland to create, the deposits i now excavate & descover both human and animal sub fossils. HISTORY OF A BECK: The Stainton gravel beds - HISTORY OF A BECK: Maltby deposits
The link below shows a simple map of the area and the route i believe the huge surge could have followed, the area in blue shows the areas i know to have the same ordered superficial geological layers