Doulting Stone Quarry (grid reference ST648436 ) is a limestone quarry at Doulting, on the Mendip Hills, Somerset, England.
At present there are only three quarries quarrying Doulting stone. The largest, The Doulting Stone Quarry, was producing building stone in Roman times. [1] In the 20th century it was operated by the Keevil family. [2] Until 1994 it was operated by Amalgamated Roadstone Corporation (now part of Hanson plc) but was then bought out as a stand-alone business. [3] Ham & Doulting Stone Co Ltd own the east quarry which was originally in use for centuries after which followed a period of inactivity. It was reopened 12 years ago. [4] The quarry also offers primary and secondary cutting and profiling. [5] [6]
The stone quarried at Doulting is a 2 m (6.6 ft) thick layer of oolite of middle Jurassic age, deposited as sediments in fairly shallow coastal seas. [7] The stone is unusual as it shows unconformity at the division between the oolite and Carboniferous limestone beneath, representing two types of rocks laid down millions of years apart, the intervening sediments having been eroded away before the Jurassic strata were laid down. [8] It has a high level of water absorption and porosity. [9]
The stone is used for building purposes, including Glastonbury Abbey and the west façade of Wells Cathedral, [3] [10] and other structures in the cathedral close, such as the fortified gate called The Bishop's Eye.
The Mendip Hills is a range of limestone hills to the south of Bristol and Bath in Somerset, England. Running from Weston-super-Mare and the Bristol Channel in the west to the Frome valley in the east, the hills overlook the Somerset Levels to the south and the Chew Valley and other tributaries of the Avon to the north. The hills give their name to the local government district of Mendip, which administers most of the area. The higher, western part of the hills, covering 198 km2 (76 sq mi) has been designated an Area of Outstanding Natural Beauty (AONB), which gives it a level of protection comparable to a national park.
Oolite or oölite is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. The name derives from the Ancient Greek word for egg (ᾠόν). Strictly, oolites consist of ooids of diameter 0.25–2 millimetres; rocks composed of ooids larger than 2 mm are called pisolites. The term oolith can refer to oolite or individual ooids.
Ham Hill is a geological Site of Special Scientific Interest (SSSI), Scheduled Ancient Monument, Iron Age hill fort, Roman site, Local Nature Reserve and country park, to the west of Yeovil in Somerset, England.
Dundry Hill is immediately south of Bristol, England: it includes farmland, a small number of houses and a church. It stretches east–west for some two miles. Most of the hill is within the district of North Somerset. At the hill's eastern end the southern slopes are within Bath and North East Somerset, and the northern slopes are within the city and county of Bristol, including the highest point in that county.
Bath Stone is an oolitic limestone comprising granular fragments of calcium carbonate. Originally obtained from the Combe Down and Bathampton Down Mines under Combe Down, Somerset, England. Its honey colouring gives the World Heritage City of Bath, England its distinctive appearance. An important feature of Bath Stone is that it is a 'freestone', so-called because it can be sawn or 'squared up' in any direction, unlike other rocks such as slate, which form distinct layers.
Nunney is a village and civil parish in the Mendip local government district within the English county of Somerset. It is located 3 miles (5 km) south-west of Frome and the parish includes the hamlet of Holwell.
Hamstone is the name given to a honey-coloured building stone from Ham Hill, Somerset, England. It is a well-cemented medium to coarse grained limestone characterised by marked bedding planes of clay inclusions and less well-cemented material which weather differentially to give exposed blocks a characteristic furrowed appearance. In origin, Hamstone is a Jurassic limestone from the Toarcian, or Upper Lias, stage.
Somerset is a rural county in the southwest of England, covering 4,171 square kilometres (1,610 sq mi). It is bounded on the north-west by the Bristol Channel, on the north by Bristol and Gloucestershire, on the north-east by Wiltshire, on the south-east by Dorset, and on the south west and west by Devon. It has broad central plains with several ranges of low hills. The landscape divides into four main geological sections from the Silurian through the Devonian and Carboniferous to the Permian which influence the landscape, together with water-related features.
Cloford Quarry is a 39.92-hectare (98.6-acre) geological Site of Special Scientific Interest to the south of the A361 approximately 350 metres (1,150 ft) north of the hamlet of Cloford and 1 kilometre (0.6 mi) west of Nunney on the Mendip Hills in Somerset. It was notified in 1994.
Doulting is a village and civil parish 1.5 miles (2 km) east of Shepton Mallet, on the A361, in the Mendip district of Somerset, England.
Wanstrow is a village and civil parish 6 miles (9.7 km) south west of Frome in the Mendip district of Somerset, England. The parish includes the village of Cloford.
Whatley Quarry, grid reference ST731479 is a limestone quarry owned by Hanson plc, near the village of Whatley on the Mendip Hills, Somerset, England.
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.
Torr Works quarry, grid reference ST695446 is a limestone quarry at East Cranmore, near Shepton Mallet on the Mendip Hills, Somerset, England. The quarry was formerly known as Merehead, a name which has been retained for its rail depot on the opposite side of the A361 road.
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.
Somerset is a county in the south west of England. It is a rural county and transport infrastructure has been significant in industrial development. There is some heavy industry particularly related to the defence technologies and the county has several centres for stone quarrying, although the coalfield is now closed.
The Blue Lias is a geological formation in southern, eastern and western England and parts of South Wales, part of the Lias Group. The Blue Lias consists of a sequence of limestone and shale layers, laid down in latest Triassic and early Jurassic times, between 195 and 200 million years ago. The Blue Lias is famous for its fossils, especially ammonites.
The county of Somerset is in South West England, bordered by the Bristol Channel and the counties of Bristol and Gloucestershire to the north, and Wiltshire to the east, Dorset to the south, and Devon to the west. The climate, influenced by its proximity to the Atlantic Ocean and the prevailing westerly winds, tends to be mild, damp and windy.
Finedon Top Lodge Quarry, also known as Finedon Gullet is a 0.9-hectare (2.2-acre) geological Site of Special Scientific Interest east of Wellingborough in Northamptonshire. It is a Geological Conservation Review site revealing a sequence of middle Jurassic limestones, sandstones and ironstones, and is the type section for a sequence of sedimentary rocks known as the 'Wellingborough Member'. It was created by quarrying for the underlying ironstone for use at Wellingborough and Corby Steelworks; the ore was transported by the 1,000 mm gauge Wellingborough Tramway.