Chlorine 36 dating and the blue stones of stonehenge
Because its bank is inside its ditch, Stonehenge is not truly a henge site. Stones visible today are shown coloured Mike Parker Pearson, leader of the Stonehenge Riverside Project based at Durrington Walls, noted that Stonehenge appears to have been associated with burial from the earliest period of its existence: Stonehenge was a place of burial from its beginning to its zenith in the mid third millennium B. The cremation burial dating to Stonehenge's sarsen stones phase is likely just one of many from this later period of the monument's use and demonstrates that it was still very much a domain of the dead.
Despite being contemporary with true Neolithic henges and stone circles, Stonehenge is in many ways atypical—for example, at more than 24 feet (7.3 m) tall, its extant trilithons' lintels, held in place with mortise and tenon joints, make it unique. Stonehenge evolved in several construction phases spanning at least 1500 years.
This first stage is dated to around 3100 BC, after which the ditch began to silt up naturally.
Within the outer edge of the enclosed area is a circle of 56 pits, each about 3.3 feet (1 m) in diameter, known as the Aubrey holes after John Aubrey, the seventeenth-century antiquarian who was thought to have first identified them.
The site and its surroundings were added to UNESCO's list of World Heritage Sites in 1986.
Stonehenge is owned by the Crown and managed by English Heritage; the surrounding land is owned by the National Trust.
The stones are set within earthworks in the middle of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds.
A recent excavation has suggested that the Aubrey Holes may have originally been used to erect a bluestone circle.
There is evidence of large-scale construction on and around the monument that perhaps extends the landscape's time frame to 6500 years.
Dating and understanding the various phases of activity is complicated by disturbance of the natural chalk by periglacial effects and animal burrowing, poor quality early excavation records, and a lack of accurate, scientifically verified dates.
I doubt not, Stonehenge in Saxon signifies the hanging stones." Christopher Chippindale's Stonehenge Complete gives the derivation of the name Stonehenge as coming from the Old English words stān meaning "stone", and either hencg meaning "hinge" (because the stone lintels hinge on the upright stones) or hen(c)en meaning "hang" or "gallows" or "instrument of torture" (though elsewhere in his book, Chippindale cites the "suspended stones" etymology).
Like Stonehenge's trilithons, medieval gallows consisted of two uprights with a lintel joining them, rather than the inverted L-shape more familiar today.