Round Hill Pit, Aldeburgh
Also within
Condition (Natural England)
| Unit | Feature | Condition | Area (ha) | Assessed |
|---|---|---|---|---|
| TM444573 | — | Favourable | 0.51 | 2023-03-06 |
Geology & landscape
Geological Period: Neogene
Description
Area, 0.5 ha. 1.2 ac. Description This small pit is of geological interest because of the exposure of Coralline Crag deposited in the Pliocene age. The face, which is about 2.5 metres high, is notable for the profusion of horizontal burrows ?crustacean and imbricate displaced structures in the sediment as a result of burrowing activity. The mineral aragonite has been selectively dissolved from the sediments since the beds were laid down, although some aragonite has survived at the extreme base of the pit. Prominent solution pipes are present in the upper surface of the Coralline Crag. The sediment consists of a winnowed bioclastic sand with only a sparse recognisable fauna. This is therefore considerably further north than any other Coralline Crag locality at which aragonitic fossils are present. This pit is important in the study of facies distributions and palaeoecology sediment and faunal patterns of the Coralline Crag.