Site of Special Scientific Interest | |
Location | Avon |
---|---|
Grid reference | ST704916 |
Interest | Geological |
Area | 2.7 hectare |
Notification | 1966 |
Location map | English Nature |
Slickstones Quarry, Cromhall, also known as Cromhall Quarry, [1] (grid reference ST704916 ) is a 2.7 hectare geological Site of Special Scientific Interest near the village of Cromhall, South Gloucestershire, England notified in 1966.
The quarry is home to South West Maritime Academy, offering both Diving and Open Water Swimming in the 4 hectare quarry lake as well as a broader site use for commercial maritime safety training by the Academy including STCW, STCW Update, marine engineering and deckhand courses as well as various RYA course offerings. The lake can be used by diving trainees as there is a sloping entry (former road) and a pontoon which is also used as an entry point for the swimmers.
The site shows red Triassic rocks from the Magnesian Conglomerate in fissures of older carboniferous limestone from the Friars Point Limestone. [2]
The fossils of two Clevosaurus species, Cryptovaranoides microlanius and Hwiccewyrm trispiculum have been recovered from Slickstones Quarry in 1939 and 1988, 1953, and the 1970s respectively. [3] [1]
The Polden Hills in Somerset, England are a long, low ridge, extending for 10 miles (16 km), and separated from the Mendip Hills, to which they are nearly parallel, by a marshy tract, known as the Somerset Levels. They are now bisected at their western end by the M5 motorway and a railway, the Bristol and Exeter Railway, part of the Great Western Main Line.
Hypsognathus is an extinct genus of procolophonid parareptile from the Late Triassic of New Jersey, Connecticut, and Nova Scotia.
Hawkesbury Quarry is a 0.25-hectare (0.62-acre) geological Site of Special Scientific Interest near the village of Hawkesbury Upton, South Gloucestershire, notified in 1967.
Gripwood Quarry is a 2.9 hectare geological Site of Special Scientific Interest at Bradford-on-Avon, Wiltshire, England, notified in 1951.
Gurney Slade quarry, grid reference ST626497 is a limestone quarry near Gurney Slade between Binegar and Holcombe, on the Mendip Hills, Somerset, England.
Dulcote Quarry is a disused limestone quarry at Dulcote, near Wells on the Mendip Hills, Somerset, England. The quarry measures around 600 metres (2,000 ft) from West to East and around 350 metres (1,150 ft) from North to South, with an area of 18 acres (7.3 ha), which is surrounded by 80 acres (32 ha) of woodland.
Gloucestershire is one of the most geologically and scenically diverse counties in England, with rocks from the Precambrian through to the Jurassic represented. These varying rock-types are responsible for the three major areas of the county, each with its own distinctive scenery and land-use - the Forest of Dean in the west, bordering Wales, the Cotswolds in the east, and in between, the Severn Vale.
DEEP Campus, previously the National Diving and Activity Centre (NDAC), was a facility located at a large flooded quarry at Tidenham, Gloucestershire, England, near to the border with Wales at Chepstow. It was previously Dayhouse Quarry, a source of limestone, which was flooded in 1996. The diving centre opened in 2003, and closed in 2022.
Clevosaurus is an extinct genus of rhynchocephalian reptile from the Late Triassic and the Early Jurassic periods. Species of Clevosaurus were widespread across Pangaea, and have been found on all continents except Australia and Antarctica. Five species of Clevosaurus have been found in ancient fissure fill deposits in south-west England and Wales, alongside other sphenodontians, early mammals and dinosaurs. In regards to its Pangaean distribution, C. hadroprodon is the oldest record of a sphenodontian from Gondwana, though its affinity to Clevosaurus has been questioned.
The Magnesian Conglomerate is a geological formation in Clifton, Bristol in England, Gloucestershire and southern Wales, present in Tytherington, Durdham Down, Slickstones Quarry and Cromhall Quarry.
Southerndown Coast is a Site of Special Scientific Interest (SSSI) in St Brides Major community, in the Vale of Glamorgan, South Wales. It forms part of the Glamorgan Heritage Coast, bordered by the Monknash Coast to the southeast. The nearby villages are Southerndown and Ogmore-by-Sea. The SSSI extends over 5 kilometres of south-west facing coastline, with rocky limestone cliffs, broad beaches and deeply fissured wave-cut platforms.
Stenders Quarry is a 2.8-hectare (6.9-acre) biological and geological Site of Special Scientific Interest in the Forest of Dean, Gloucestershire, England, notified in 1966 and renotified in 1990. The site is designated as an SSSI for its important geological features, although there is also a diversity of plants and animals recorded.
Lower Wye Gorge is a 65-hectare (160-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1954 and renotified 1987. The site includes two Gloucestershire Wildlife Trust nature reserves being Ban-y-gor Wood and Lancaut. The Natural England citation states a revision for Lancaut inclusion.
Bull Cross, The Frith and Juniper Hill is a 42.33-hectare (104.6-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1954. The site is listed in the ‘Stroud District’ Local Plan, adopted November 2005, Appendix 6 as an SSSI and Regionally Important Geological Site (RIGS).
Edgehills Quarry is a 0.4-hectare (0.99-acre) geological Site of Special Scientific Interest in Gloucestershire, notified in 1974.
Minchinhampton Common is a 182.7-hectare (451-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1972.
Aenigmaspina is an extinct genus of enigmatic pseudosuchian (=crurotarsan) archosaur from the Late Triassic of the United Kingdom. Its fossils are known from the Pant-y-ffynnon Quarry in South Wales, of which its type and only known species is named after, A. pantyffynnonensis. Aenigmaspina is characterised by the unusual spines on its vertebrae, which are broad and flat on top with a unique 'Y' shape. Although parts of its skeleton is relatively well known, the affinities of Aenigmaspina to other pseudosuchians are unclear, although it is possibly related to families Ornithosuchidae, Erpetosuchidae or Gracilisuchidae.
Woodeaton Quarry is a 7.3-hectare (18-acre) geological Site of Special Scientific Interest north of Oxford in Oxfordshire. It is a Geological Conservation Review site.
Lyehill Quarry is a 2.8-hectare (6.9-acre) geological Site of Special Scientific Interest east of Oxford in Oxfordshire. It is a Geological Conservation Review site.
Hwiccewyrm is an extinct genus of leptopleuronine procolophonid parareptile from the Late Triassic Magnesian Conglomerate of England. The type, and currently only, species is H. trispiculum.
51°37′21″N2°25′44″W / 51.62244°N 2.42897°W