Comment: This discovery doesn't bring us any closer to solving the mystery of how Stonehenge's megaliths were transported into place, but it does move us further away from asinine notions that they were moved using ropes, carts and boats!
According to a new study published in the journal Nature, the Altar Stone at Stonehenge (thought to be Welsh in origin) actually hails from Scotland.
The Altar Stone, otherwise known as Stone 80, is a six-tonne recumbent megalith made from a micaceous sandstone.
Previous studies have attributed the Altar Stone to the Senni Beds formation of the Old Red Sandstone in Wales (ORS), however, a geochemical analysis of two 30-µm samples now suggests that the stone was transported from Scotland some 4,500-years-ago.
The research was led by a Welsh PhD student, Anthony Clarke, now working at Curtin University in Western Australia.
The study authors analysed the chemistry of detrital zircon, apatite and rutile grains from within fragments from the stone, revealing Mesoproterozoic and Archaean sources in the Zircon, and a mid-Ordovician source in the rutile and apatite.
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