Stonehenge mysteries unraveling

Vídeo YouTube (cctvnewschannel el 12/05/2011 LatestWorldnews el 11/05/2011 ) añadido a Paleo Vídeos > Prehistoria Universal > L.R.2.2

Related news: 22/02/11. New discovery throws further light on the origins of famous bluestones of Stonehenge
The ongoing debate surrounding the source of the famous bluestones forming the distinctive inner circle and horseshoe of Stonehenge has taken another turn after new findings emerged from Amgueddfa Cymru – National Museum Wales.

One type of bluestone, the so-called spotted dolerite, was convincingly traced to the Mynydd Preseli area of North Pembrokeshire in the 1920s, but the origins of many of the others have remained a mystery. Now geologists at the museum in Cardiff believe they have identified the source of one of the rhyolite types.

A team led by Keeper of Geology Dr Richard Bevins has been using “standard petrographical techniques” and “laser ablation induction coupled mass spectrometry” on samples from Stonehenge and Pembrokeshire...