Winchester-King's Somborne Syncline
The Winchester-King's Somborne Syncline is one of a series of parallel east-west trending folds in the Cretaceous chalk of Hampshire. It lies at the western end of the South Downs, immediately to the north of the Winchester-East Meon Anticline and east of Salisbury Plain.
Structure
[edit]The fold axis runs for around 40 kilometres (25 mi) from north of East Tytherley in the west, between Winchester and Kings Worthy, towards Four Marks in the east.[1][2] To the north-east of Winchester the fold axis is followed by the valley of the River Itchen, which turns abruptly south to cut across the structure and the Winchester-East Meon Anticline to the south.
Parallel folds to the north include the Stockbridge Anticline and the Micheldever Syncline. To the south-west across the River Test is the similar Alderbury-Mottisfont Syncline. As with other nearby folds, the structure is controlled by movement of fault blocks within the Jurassic strata below.[3]
See also
[edit]List of geological folds in Great Britain
References
[edit]- ^ Winchester (Map). 1:50000. British Geological Survey England and Wales. British Geological Survey. 2002. ISBN 0-7518-3340-1.
- ^ Alresford (Map). 1:50000. British Geological Survey England and Wales. British Geological Survey. 1999. ISBN 0-7518-3250-2.
- ^ Booth, K.A. (2002). Geology of the Winchester district - a brief explanation of the geological map. British Geological Survey. ISBN 0-85272-429-2.
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