Haffield Breccia, or Clent Breccia, (now known as the Haffield and Clent Formations)
consist of a texturally immature compacted gravel, rich in volcanic clasts with some sedimentary rocks, in a sandy or muddy matrix, which outcrops in the English Midlands, in South Staffordshire, Birmingham and the
Malverns. It is thought to have been deposited by during flash floods in rivers that were flowing through a desert, somewhere between 200 and 280 million years ago during the
Permian
The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last ...
period. The gravel consists of angular fragments, showing that they have not been transported over long distances.
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See also
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Clent Hills
The Clent Hills lie south-west of Birmingham city centre in Clent, Worcestershire, England. The closest towns are Stourbridge and Halesowen, both in the West Midlands conurbation (and also historically in Worcestershire). The Clent Hills rang ...
References
Further reading
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Permian System of Europe
Geologic formations of the United Kingdom
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