Limestone quarried on the Isle of Portland, Dorset, England
Not to be confused with Portland brownstone.
Portland Stone Formation
Stratigraphic range: Tithonian
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Portland stone quarry on the Isle of Portland
Type
Geological formation
Unit of
Portland Group
Sub-units
Dorset: Portland Chert Member, Portland Freestone Member
Vale of Wardour: Tisbury Member, Wockley Member, Chilmark Member
Vale of Pewsey: No formal subdivision
Underlies
Lulworth Formation
Overlies
Portland Sand Formation
Thickness
up to 38 metres (120 ft) in Dorset
Lithology
Primary
Limestone
Other
Siltstone, Sandstone
Location
Region
England
Country
United Kingdom
Type section
Named for
Isle of Portland
Location
Clay Ope, West Weare Cliff
Thickness at type section
25 metres
The Cenotaph, in Whitehall, London, is made from Portland stone
Portland stone is a limestone geological formation (formally named the Portland Stone Formation[1]) dating to the Tithonian age of the Late Jurassic that is quarried on the Isle of Portland in Dorset, England.[1] The quarries are cut in beds of white-grey limestone separated by chert beds. It has been used extensively as a building stone throughout the British Isles, notably in major public buildings in London such as St Paul's Cathedral and Buckingham Palace. Portland stone is also exported to many countries, being used for example at the United Nations headquarters in New York City.
^ ab"Portland Stone Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 25 July 2019.
Portlandstone is a limestone geological formation (formally named the PortlandStone Formation) dating to the Tithonian age of the Late Jurassic that...
available. Its name is derived from its resemblance to Portlandstone which is quarried on the Isle of Portland in Dorset, England. It was named by Joseph Aspdin...
Look up Portland or portland in Wiktionary, the free dictionary. Portland most commonly refers to: Portland, Oregon, the largest city in the U.S. state...
Dorset and east Devon coast, important for its geology and landforms. Portlandstone, a limestone famous for its use in British and world architecture, including...
Cotswold Hills, the Isle of Portland with its famous PortlandStone, and part of the North York Moors. A particular type, Bath Stone, gives the buildings of...
aluminate cement or with Portland cement to form Portland cement concrete (named for its visual resemblance to Portlandstone). Many other non-cementitious...
A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground...
Europe's largest onshore oilfield lies under the south-east of the county. Portlandstone and Purbeck limestone have both been quarried for centuries to provide...
2°26′24″W / 50.550°N 2.440°W / 50.550; -2.440 Portland Independent Top Whitbed is the variety of Portlandstone used to build the Ashton Memorial in Lancaster...
limestones and sandstones. Examples of limestones include Bath and Portlandstone. Yorkstone and Sydney sandstone are the most commonly used sandstone...
Portland Harbour is located beside the Isle of Portland, Dorset, on the south coast of England. Construction of the harbour began in 1849; when completed...
on 15 May. The main building is in Art Deco style, with a facing of Portlandstone over a steel frame. It is a Grade II* listed building and includes the...
in the wall of 111 Cannon Street (EC4N 5AR), within a Portlandstone casing. When London Stone was erected and what its original function was are unknown...
Mode of Producing an Artificial Stone, in which he coined the term "Portland cement" by analogy with the Portlandstone, an oolitic limestone that is quarried...
was built between 1901 and 1904. It was constructed in red brick and Portlandstone. Princess Mestchersky, a leader of White Russian emigres from the Russian...
building was to be a single block in the Neoclassical design, faced in Portlandstone, some 128 feet (39 m) high and 570 feet (170 m) long with a depth of...
using Irish Ardbraccan limestone which is noticeably darker than the Portlandstone used in the original construction. This was done to promote Irish resources...
in the Modernist era, to juxtapose metal chains with a concrete or Portlandstone facade. They are often seen in cup-shape, link and loop style, as well...
113-hectare (280-acre) country park and nature reserve. It is constructed of Portlandstone, weighs about 40 tonnes and is 3 metres (10 ft) in diameter. South of...
inside is faced with 16 kinds of stone from the abbey's history, including Purbeck marble, Reigate stone, and Portlandstone. The project took five years...
weathering, while some limestones are very weak. Other limestones, such as Portlandstone, are more weather-resistant. Large structures are typically constructed...
Holy Roman Empire, and defended the Portland Roads anchorage. The fan-shaped castle was built from Portlandstone, with a curved central tower and a gun...
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