Wiveton Downs
Also within
Condition (Natural England)
| Unit | Feature | Condition | Area (ha) | Assessed |
|---|---|---|---|---|
| TG016438 | — | Favourable | 1.67 | 2023-03-06 |
| TG019435 | — | Favourable | 8.41 | 2023-03-06 |
| TG025427 | — | Unfavourable Declining | 7.17 | 2023-03-06 |
| TG029423 | — | Unfavourable Declining | 4.44 | 2023-03-06 |
| TG033421 | — | Unfavourable Declining | 7.21 | 2023-03-06 |
Geology & landscape
Geological Feature: Esker
Landscape processes: Glacial
Description
Area, 0.62 hectares 1.5 ac Description Wiveton Downs known to geologists as the Blakeney Esker is a classic landform of outstanding importance for teaching, research and demonstration purposes. Its genesis as an esker or crevasse fill deposit has long been the subject of debate and research. Its overall morphology is particularly clear, showing a sharp ridge form, while its internal structures are demonstrated in several gravel pits. Exposures of sands and gravels show bedding indicative of both tunnel and open flow conditions, as well as facies variation between the high energy flow of the central area of the ridge and lower energy domains of the marginal zone. The relationship of the ridge feature to the surrounding till plain can also be seen both morphologically and sedimentologically, flowing water cut into the till before the gravels were-deposited. Wiveton Downs is part of a suite of landforms comprising, in addition to to the till plain, various kaans, kame terraces, outwash plains and a tunnel valley. It is unusual to find such a wide range of features, most of which have exposures, in such close proximity particularly in southern England.