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Unexpected discovery: The Stonehenge monument came from Scotland by sea

2024-08-29 10:08:22Lifestyle SHKRUAR NGA REDAKSIA VOX
Unexpected discovery: The Stonehenge monument came from Scotland by sea
Stonehenge monument

An unexpected "discovery" links Stonehenge's 6.6 ton altar stone to the northernmost part of Great Britain possibly transported by ocean.

A detailed study of Stonehenge's central monolith has upended understanding of the mysterious British monument's origins by suggesting that one of its central stones was transported from northern Scotland.

The findings say the flat sandstone measuring 5 square meters and weighing 6 tonnes must have traveled more than three times the distance previously suggested.

The 5,000-year-old Neolithic stone is a treasure of British archaeological heritage that is visited by more than 1 million people a year. It is a place to celebrate the solstice every year and has recently been the subject of highly debated environmental protests.

Assumptions about the origin of Stonehenge 

But it remains unclear how the structure was built.

Until last year, the stone altar was described as "bluestone" even though it was found to be sandstone, thought to have originated from a deposit near the Brecon Beacons in Wales.

For a long time it was thought that the stones were transported from the deposits of Mynydd Preseli on the west coast of the country for 225 kilometers to build Stonehenge. The center also has large slabs of local sandstone.

A report last year from the University of Aberystwyth revealed the Altar Stone's composition is completely different from Welsh sandstones, and the study's authors hypothesize that it originated in Northern Britain.

On the recommendation of the Aberystwyth group small fragments of the altar stone were sent to the other side of the world, to Western Australia, where a PhD student from Curtin University observed them under a microscope.

Unexpected discovery: The Stonehenge monument came from Scotland by sea

'Stone DNA reveals origin of Stonehenge Altar Stone

The large Altar Stone at the center of Stonehenge is encased in the ground beneath two blocks of sandstone, which were brought from the Weltshire region along with other upright stones that form the outer circle of the monument.

But Aberystwyth scientists led by geologist Richard Bevins identified the possibility of different origins for the altar in 2023.

Anthony Clarke and his colleagues did an isotope analysis of the fragmented uranium of the Altar Stone crystals. Using these measurements, Clarke and colleague Chris Kirkland—a Scot who also works at Curtin—used a geological database of rock deposits in Great Britain to compare the Altar Stone with rocks from the Orcadian Basin, about 850 kilometers to the north. of Stonehenge.

By measuring the isotope ratios of uranium and lead within these tiny crystals, we have a clock in miniature," Kirkland said. "This is like the DNA of rocks that tells us where these materials came from and their age."

Unexpected discovery: The Stonehenge monument came from Scotland by sea

Stonehenge: A History of Maritime Trade?

Moving the 6-ton stone overland for more than 100 kilometers 6,000 years ago is a sensation. Scientists say that it is most likely that it was transported through water.

"At first we thought it was moved through the ice because for humans it's a very long distance. But when you look at the ice flows in the ice ages they've mostly moved away from southern Britain," Clarke said. "If you look at the land route it has a lot barriers, rivers and dense forests, which make us think that the sea route is the most possible".

Similarly, archaeologists have found a branch of the Nile that has dried up but that in ancient Egypt may have been used to transport the stones they needed for their constructions. Clark says it's a mix between surprise and perhaps skepticism. The new discoveries have been published in the scientific journal Nature./ DW

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