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For nine months Dr Bevins, keeper of geology at National Museum Wales, and Dr Rob Ixer of Leicester University collected and identified samples from rock outcrops in Pembrokeshire to try to find the origins of rhyolite debitage rocks that can be found at Stonehenge.
By detailing the mineral content and the textural relationships within the rock, a process known as petrography, they found that 99% of the samples could be matched to rocks found in this particular set of outcrops.
Rhyolitic rocks at Rhos-y-felin, between Ffynnon-groes (Crosswell) and Brynberian, differ from all others in south Wales, they said, which helps locate almost all of Stonehenge's rhyolites to within hundreds of square metres.
With the location identified, archaeologists will now be able to dig to try and uncover how the stones from Pembrokeshire reached Stonehenge.
"Many have asked the question over the years, how the stones got from Pembrokeshire to Stonehenge," said Dr Bevins. "Was it human transport? Was it due to ice transport?
"Thanks to geological research, we now have a specific source for the rhyolite stones from which to work and an opportunity for archaeologists to answer the question that has been widely debated.
Originally posted by kaleshchand
In the end the answer will be "done by people/ slaves (with or without help of animals), and some ropes and pulleys."
I think there was another global civilisation some 10,000 years ago, and this civilisation built stone henge, I even remember reading a report somewhere that they found petrified wood from pole that were used as guide posts for stone henge and when they carbon dated them they were approx 10,000 years old too
Originally posted by PrinceDreamer
reply to post by Hanslune
Here is one link to it, you can easily search google for more information, just put "carbon dating poles Stonehenge" you will get lots of results
The first post hole would have been constructed around 8275 BC, the second one (next to the first) was erected about 7035 BC – some 1,240 years later! By then the first post would have rotted away and the first post hole completely lost.
So English Heritage are asking people to accept that a group of hunter-gatherers went to the Stonehenge site in 8275 BC and placed a “totem pole” in a valley away from the high ground (where Stonehenge sits today), which at that time in history was surrounded by a tall pine forest.
I read somewhere also that there possibly a wooden roof over Stonehenge , if fires were built inside the rocks would create a thermal mass , a lot better than grass huts ! Thanks for the info !
I think the idea that Stonehenge was built as a calendar rather lame to be honest, they could of done the same and made the same measurements by putting wooden poles in the ground. The stones must of had special significance to transport them all the way from Wales.
I doubt it was because of a mini ice age, people would of been more concerned about gathering food which would of been in very limited supply.
Earlier this year he (Mr .Darvill) and his colleague Geoff Wainwright led a field expedition to the site, which he describes as "a veritable Aladdin's Cave of made-to-measure pillars for aspiring circle builders".