Sarsen stones are

silicified In geology, silicification is a process in which silica-rich fluids seep into the voids of Earth materials, e.g., rocks, wood, bones, shells, and replace the original materials with silica (SiO2). Silica is a naturally existing and abundant com ...

sandstone Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...

blocks found extensively across southern England on the

Salisbury Plain Salisbury Plain is a chalk plateau in southern England covering . It is part of a system of chalk downlands throughout eastern and southern England formed by the rocks of the Chalk Group and largely lies within the county of Wiltshire, but st ...

and the Marlborough Downs in Wiltshire; in

Kent Kent is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Essex across the Thames Estuary to the north, the Strait of Dover to the south-east, East Sussex to the south-west, Surrey to the west, and Gr ...

; and in smaller quantities in

Berkshire Berkshire ( ; abbreviated ), officially the Royal County of Berkshire, is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Oxfordshire to the north, Buckinghamshire to the north-east, Greater London ...

Essex Essex ( ) is a Ceremonial counties of England, ceremonial county in the East of England, and one of the home counties. It is bordered by Cambridgeshire and Suffolk to the north, the North Sea to the east, Kent across the Thames Estuary to the ...

Oxfordshire Oxfordshire ( ; abbreviated ''Oxon'') is a ceremonial county in South East England. The county is bordered by Northamptonshire and Warwickshire to the north, Buckinghamshire to the east, Berkshire to the south, and Wiltshire and Glouceste ...

Dorset Dorset ( ; Archaism, archaically: Dorsetshire , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by Somerset to the north-west, Wiltshire to the north and the north-east, Hampshire to the east, t ...

, and

Hampshire Hampshire (, ; abbreviated to Hants.) is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Berkshire to the north, Surrey and West Sussex to the east, the Isle of Wight across the Solent to the south, ...

Geology

Sarsen stones are the post-glacial remains of a cap of

Cenozoic The Cenozoic Era ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterized by the dominance of mammals, insects, birds and angiosperms (flowering plants). It is the latest of three g ...

silcrete Silcrete is an indurated (resists crumbling or powdering) soil duricrust formed when surface soil, sand, and gravel are cemented by dissolved silica. The formation of silcrete is similar to that of calcrete, formed by calcium carbonate, and ferri ...

that once covered much of southern England. This is thought to have formed during

Neogene The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period million years ago. It is the second period of th ...

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...

weathering Weathering is the deterioration of rocks, soils and minerals (as well as wood and artificial materials) through contact with water, atmospheric gases, sunlight, and biological organisms. It occurs '' in situ'' (on-site, with little or no move ...

by the silicification of Upper

Paleocene The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ...

Lambeth Group The Lambeth Group is a stratigraphic group, a set of geological rock strata in the London and Hampshire basins of southern England. It comprises a complex of vertically and laterally varying gravels, sands, silts and clays deposited between 56 ...

sediments, resulting from acid leaching.

Etymology

There are several potential sources for the word "sarsen." The first is that word "sarsen" is a shortening of "Saracen stone" which arose in the Wiltshire dialect. In the Middle Ages, "

Saracen upright 1.5, Late 15th-century German woodcut depicting Saracens ''Saracen'' ( ) was a term used both in Greek and Latin writings between the 5th and 15th centuries to refer to the people who lived in and near what was designated by the Rom ...

" was a common name for

Muslim Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...

s, and came by extension to be used for anything regarded as non-Christian, whether Muslim or pagan in contrast to Christianity. The second is that "sarsen" is vernacular variation of the Indo-European "sasan," name given to the prehistoric vaults of the Chotanagpur plateau of Northern India. The third possibility is that "sarsen" comes from the hybrid Anglo-Saxon "sar-stan" or 'troublesome stone.' "Sar" has the meaning of 'grievous.'

Human uses

The builders of

Stonehenge Stonehenge is a prehistoric Megalith, megalithic structure on Salisbury Plain in Wiltshire, England, west of Amesbury. It consists of an outer ring of vertical sarsen standing stones, each around high, wide, and weighing around 25 tons, to ...

used these stones for the Heel Stone and sarsen circle uprights. Avebury and many other

megalith A megalith is a large stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones. More than 35,000 megalithic structures have been identified across Europe, ranging geographically f ...

ic monuments in southern England are also built with sarsen stones. While sarsen stones are not an ideal building material, fire and in later times explosives were sometimes employed to break the stone into pieces of a suitable size for use in construction.

William Stukeley William Stukeley (7 November 1687 – 3 March 1765) was an English antiquarian, physician and Anglican clergyman. A significant influence on the later development of archaeology, he pioneered the scholarly investigation of the prehistoric ...

wrote that sarsen is "always moist and dewy in winter which proves damp and unwholesome, and rots the furniture". In the case of Avebury, the investors who backed a scheme to recycle the stone were bankrupted when the houses they built proved to be unsaleable and also prone to burning down. However, despite these problems, sarsen remained highly prized for its durability, being a favoured material for steps and kerb stones.

References

External links

Photo of Sarsens on Fyfield Down, Wiltshire
* {{Stonehenge Megalithic monuments in England Stone (material)

Geology

Etymology

Human uses

See also

References

External links