Dans sa parution de décembre 2014, Antiquity propose un article de Timothy Darvill, du département d’ Archéologie et d' Anthropologie de l’Université de Bournemouth, et de Geoff Wainwright, qui traite de l’origine des célèbres « bluestones » utilisées à Stonehenge ainsi que du début de leur utilisation par les populations préhistoriques, dès le Mésolithique, au septième millénaire BC.

« Beyond Stonehenge: Carn Menyn Quarry and the origin and date of bluestone extraction in the Preseli Hills of south-west Wales », Antiquity volume 88 (342), décembre 2014 : 1099–1114

le résumé en anglais :

Recent investigations at Stonehenge have been accompanied by new research on the origin of the famous ‘bluestones’, a mixed assemblage of rhyolites and dolerites that stand among the much taller sarsens. Some of the rhyolite debitage has been traced to a quarry site at Craig Rhosyfelin near the Pembrokeshire coast; but fieldwork on the upland outcrops of Carn Menyn has also provided evidence for dolerite extraction in the later third millennium BC, and for the production of pillar-like blocks that resemble the Stonehenge bluestones in shape and size. Quarrying at Carn Menyn began much earlier, however, during the seventh millennium BC, suggesting that Mesolithic communities were the first to exploit the geology of this remote upland location.