References

Allen MJ, Chan B, Cleal R, French C & 10 others (2016) Stonehenge’s Avenue and ‘Bluestonehenge’. Antiquity 90, 352, 991-1008.

Bevins RE, Donnelly R (1992) The Storrie Erratic Collection: a reappraisal of the status of the Pencoed ‘Older Drift’ and its significance for the Pleistocene of South Wales. Proceedings of the Geologists’ Association 103, 129-142.

Bevins R, Ixer R (2018) Retracing the footsteps of H.H. Thomas: a review of his Stonehenge bluestone provenancing study. Antiquity 92 363, 788-802.

Bevins R, Ixer R, Pearce N, Scourse J, Daw T (2023) Lithological description and provenancing of a collection of bluestones from excavations at Stonehenge by William Hawley in 1924 with implications for the human versus ice transport debate of the monument’s bluestone megaliths. Geoarchaeology 38, 677-829.

Bevins RE, Ixer RA, Webb PC, Watson JS (2012) Provenancing the rhyolitic and dacitic components of the Stonehenge landscape bluestone lithology: new petrographical and geochemical evidence. Journal of Archaeological Science 39, 1005-1019.

Bevins RE, Pearce NJG, Hillier S, Pirrie D, Ixer RA & 4 others (2024) Was the Stonehenge Altar Stone from Orkney? Investigating the mineralogy and geochemistry of Orcadian Old Red Sandstones and Neolithic circle monuments, Journal of Archaeological Science: Reports 58, 104738.

Bevins RE, Pearce NJG, Ixer RA, Scourse J, Daw T, Parker Pearson M & 5 others (2025) The enigmatic ‘Newall boulder’ excavated at Stonehenge in 1924: New data and correcting the record. Journal of Archaeological Science Reports 66, 105303.

Bevins RE, Pearce NJG, Pearson MP, Ixer RA (2022) Identification of the source of dolerites used at the Waun Mawn stone circle in the Mynydd Preseli, west Wales and implications for the proposed link with Stonehenge. Journal of Archaeological Science: Reports 45, 103556.

Bevins RE, Pirrie D, Ixer RA, O’Brien H, Parker Pearson M, Power MR, Shail RK (2020) Constraining the provenance of the Stonehenge ‘Altar Stone’: evidence from automated mineralogy and U-Pb zircon age dating. Journal of Archaeological Science 120, 105188.

Bögli A (1964) Mischungskorrosion: Ein Beitrag zum Verkarstungsproblem. Erdkunde 18, 83-92. 

Bögli A (1980) Karst Hydrology and Physical Speleology, 284pp, Springer-Verlag: Berlin.

British Geological Survey (2002) Worms Head. England and Wales Sheet 246. Solid and Drift Geology. 1:50 000 Provisional Series. (Keyworth, Nottingham: British Geological Survey).

Brown DJ, Bell BR (2013) The emplacement of a large, chemically zoned, rheomorphic, lava-like ignimbrite: the Sgurr of Eigg Pitchstone, NW Scotland. Journal of the Geological Society 170, 753-767.

Burl A (1999) Essay extract from Glaciers and bluestones of Wales. Yale. British Archaeology 45, June.

Cawood PA, Nemcin AA, Smith M, Loewy S (2003) Source of the Dalradian Supergroup constrained by U-Pb dating of detrital zircons and implications for the East Laurentian margin. Journal of the Geological Society 160, 231-246.

Cawood PA, Hawkesworth CJ, Dhuime B (2012) Detrital zircon record and tectonic setting. Geology 40, 875-878.

Clarke AJI, Kirkland C (2026) Detrital zircon-apatite fingerprinting challenges glacial transport of Stonehenge’s megaliths. Nature Communications Earth & Environment doi: 10.1038/s43247-025-03105-3.

Clarke AJI, Kirkland CL, Bevins RE, Pearce NJG & 2 others (2024) A Scottish provenance for the Altar Stone of Stonehenge. Nature 632, 570-575.

Clarke AJI, Veness RLJ, Kirkland CL, Clark CD & 5 others (2026) From Highlands to Henge: refining the provenance and transport pathways of Stone Henge’s Altar Stone. Journal of Quaternary Science 1-8, https://doi.org/10.1002/jqs.70080.

Colbourne GJ, Gilbertson DD, Hawkins AB (1974). Temporary drift exposures on the Failand ridge. Proceedings of the Bristol Naturalists’ Society, 33, 91-97.

Collings-Wells P (2025) Ogof Ffynnon Ddu – a photographic exploration of the deepest cave in the UK (with 34+ contributors), WhiteSpringBooks and Gomer Press, 170 pp.

Cunnington BH (1924) The “Blue Stone” from Boles Barrow. The Wiltshire Archaeological & Natural History Magazine CXL, Vol. XLII, 431-437.

Daw T (2025) The origins of Stonehenge’s sarsen stones: A comprehensive review of provenancing studies. doi:10.13140/RG.2.2.28682.1706

Evans J, Madgwick R, Pashley V & 4 others (2025) Sequential multi-isotope sampling through a Bos taurus tooth from Stonehenge, to assess comparative sources and incorporation times of strontium and lead. Journal of Archaeological Science 180, 106269.

Field D, Anderson-Whymark H, Linford N & 15 others (2015) Analytical Surveys of Stonehenge and its Environs, 2009-2013: Part 2 – the Stones. Proceedings of the Prehistoric Society 81, 125-148.

Friend CRL, Strachan RA, Kinny PD, Watt GR (2003) Provenance of the Moine Supergroup of NW Scotland: Evidence from geochronology of detrital and inherited zircons from (mete)sedimentary rocks, granites and migmatites. Journal of the Geological Society 160, 247-257.

Gibbard PL, Lewin J (2003) The history of major rivers of southern Britain during the Tertiary. Journal of the Geological Society 160, 829-845.

Gibbard PL, Lewin J (2016) Filling the North Sea Basin: Cenozoic sediment sources and river styles. Geologica Belgica 19, 201-217.

Gilbertson DD, Hawkins AB (1978) The col-gully and glacial deposits at Court Hill, Clevedon, near Bristol, England. Journal of Glaciology 20, 173-188.

Harding P, Nash DJ, Ciborowski TJR & 2 others (2024) Earliest Movement of Sarsen Into the Stonehenge Landscape: New Insights from Geochemical and Visibility Analysis of the Cuckoo Stone and Tor Stone. Proceedings of the Prehistoric Society 90, 229-251.

Harvey JC, Morgan R, Webley DP (1967) Tooth Cave, Ilston, Gower. An Early Bronze Age occupation. Archaeology and Art, 22, 277-283. (author: i.e., Ilston parish not cwm)

Hawkins AB, Kellaway GA (1971) Field Meeting at Bristol and Bath. Proceedings of the Geologists Association 82, 267-291.

Ixer RA, Bevins RE (2010) The petrography, affinity and provenance of lithics from the Cursus Field, Stonehenge. Wiltshire Archaeological & Natural History Magazine 103, 1-15.

Ixer RA, Bevins RE (2016) Volcanic Group A debitage: its description and distribution within the Stonehenge landscape. Wiltshire Archaeological & Natural History Magazine 109, 1-14.

Ixer R, Bevins R (2017) The bluestones of Stonehenge. Geology Today 33, 180-184.

Ixer R, Bevins R, Pearce N, Pirrie D & 4 others (2025) Exotic granodiorite lithics from Structure 5 at West Kennet, Avebury World Heritage Site, Wiltshire, UK. Wiltshire Archaeological & Natural History Magazine 118, 1-18.

Ixer R, Bevins R, Pirrie D (2020) Provenancing the stones. Mapping the Stonehenge bluestones with mineralogy. Current Archaeology 366, 34-41.

Ixer RA, Turner P, Molyneux S, Bevins RE (2017) The petrography, geological age and distribution of the Lower Palaeozoic Sandstone debitage from the Stonehenge Landscape. Wiltshire Archaeological & Natural History Magazine 110, 1-16.

Jehu TJ (1904) The glacial deposits of Northern Pembrokeshire. Transactions of the Royal Society of Edinburgh 41, 53-87. 

Jenkins DG, Beckinsale RD, Bowen DQ, Evans JA & 3 others (1985) The origin of granite erratics in the Pleistocene Patella beach, Gower, South Wales. Geological Magazine 122, 297-302.

Jenkins DG, Boulter MC, Ramsay ATS (1995) The Flimston Clay, Pembrokeshire, Wales: a probably late Oligocene lacustrine deposit. Journal of Micropalaeontology 14, p. 66.

John BS (2024) A bluestone boulder at Stonehenge: implications for the glacial transport theory. E&G Quaternary Science Journal 73, 117–134.

John B (2025) Carn Goedog on Mynydd Preseli was not the site of a Bluestone Megalith Quarry. Archaeology in Wales 63, 5-18.

John B, Elis-Gruffydd D, Downes J (2015) Observations on the supposed “Neolithic bluestone quarry” at Craig Rhosyfelin, Pembrokeshire. Archaeology in Wales 54, 139-148.

Johnson TE, Kirkland CL, Reddy SM, Evans NJ, McDonald BJ (2016) The source of Dalradian detritus in the Buchan Block, NE Scotland: Application of new tools to detrital datasets. Journal of the Geological Society 173, 773-782.

Kellaway GA (1971) Glaciation and the stones of Stonehenge. Nature 233, 30-35.

Kirkland CL, Strachan RA, Prave AR (2008) Detrital zircon signature of the Moine Supergroup, Scotland: Contrasts and comparisons with other Neoproterozoic successions within the circum-North Atlantic region. Precambrian Research 163, 332-350.

Kokelaar BP (2024) Gower’s inland flooding: Legacy of the last glaciation of Wales. Gower Journal 75, 6-11.

Kokelaar BP, Bevins RE, Roach RA (1985) Submarine silicic volcanism and associated sedimentary and tectonic processes, Ramsey Island, SW Wales. Journal of the Geological Society, London 142, 591-613.

Kokelaar BP, Howells MF, Bevins RE, Roach RA (1984) Volcanic and associated sedimentary and tectonic processes in the Ordovician marginal basin of Wales: a field guide. In Kokelaar BP, Howells MF (eds) Marginal Basin Geology. Spec. Pub. Geol. Soc. London, 16, 291-322.

Lee JR, Robertson S (2025) Refining the known extent of major onshore Quaternary glaciation in the UK – Types of evidence, nomenclature and uncertainty. Proceedings of the Geologists’ Association 136, 101087.

Leivers M (2021) The Army Basing Programme, Stonehenge and the emergence of the Sacred Landscape of Wessex. Internet Archaeology 56. https://doi.org/10.11141/ia.56.2

Mason AJ (2015) The Palaeoproterozoic anatomy of the Lewisian Complex, NW Scotland: Evidence for Two ‘Laxfordian’ Tectonothermal Cycles. Journal of the Geological Society 173, 153-169.

Mason AJ, Parrish RR, Brewer TS (2004) U-Pb geochronology of Lewisian orthogneisses in the Outer Hebrides, Scotland: implications for the tectonic setting and correlation of the South Harris Complex. Journal of the Geological Society of London 161, 45–54.

McAteer CA, Daly JS, Flowerdew MJ, Connelly JN, Housh TB, Whitehouse M (2010) Detrital zircon, detrital titanite and igneous clast U-Pb geochronology and basement-cover relationships of the Colonsay Group, SW Scotland: Laurentian provenance and correlation with the Neoproterozoic Dalradian Supergroup. Precambrian Research 181, 21-42.

McCarroll D, Stone JO, Ballantyne CK, Scourse JD, & 3 others (2010) Exposure-age constraints on the extent, timing and rate of retreat of the last Irish Sea ice stream. Quaternary Science Reviews 29, 1844-1852.

Neilson JC (2008) From slab breakoff to triggered eruptions: Tectonic controls of Caledonian post-orogenic magmatism. PhD thesis, University of Liverpool, 518 pp.

Neilson JC, Kokelaar BP, Crowley QG (2009) Timing, relations and cause of plutonic and volcanic activity of the Siluro-Devonian post-collision magmatic episode in the Grampian Terrane, Scotland. Journal of the Geological Society, London 166, 545-561.

Newall RS (1959) Stonehenge, Wiltshire. HMSO London, 24pp.

Oliver GJH, Wilde S, Wan Y (2008) Geochronology and geodynamics of Scottish granitoids from the late Neoproterozoic break-up of Rhodinia to Palaeozoic collision. Journal of the Geological Society, London 165, 661-674.

Parker Pearson M (2023) Stonehenge. Journal of Urban Archaeology 7, 147-168.

Parker Pearson M, Bevins R, Ixer R & 3 others (2020) Long-distance landscapes: from quarries to monument at Stonehenge. Megaliths and geology. Boaventura, Mataloto & Pereira (eds), pp 151-169.

Parker Pearson M, Pollard J, Richards C, Welham K (2017) The origins of Stonehenge: on the track of the bluestones. Archaeology International 20, 52-57.

Parker Pearson M, Pollard J, Richards C, Welham K & 6 others (2021) The original Stonehenge? A dismantled stone circle in the Preseli Hills of West Wales. Antiquity 95, 85-103.

Scourse JD (1997) Transport of the Stonehenge Bluestones: Testing the Glacial Hypothesis. Proceedings of the British Academy 92, 271-314.

Snoeck C, Pouncett J, Claeys P, Golderis S & 6 others (2018) Strontium isotope analysis on cremated human remains from Stonehenge supports links with west Wales. Nature Scientific Reports (2018) 8:10790.

Stevens T, Baykal Y (2021) Detrital zircon U-Pb ages and source of the late Palaeocene Thanet Formation, Kent, SE England. Proceedings of the Geologists’ Association 132, 240-248.

Strachan RA, Prave AR, Kirkland CL, Storey CD (2013) Detrital zircon geochronology of the Dalradian Supergroup, Shetland Islands, Scotland: Implications for regional correlations and Neoproterozoic-Palaeozoic basin development. Journal of the Geological Society 170, 905-916.

Strahan A, Cantrill TC (1904) Geology of the South Wales Coalfield. Part VI. The country around Bridgend. Mem. Geol. Surv. Great Britain.

Strahan A, Cantrill TC, Dixon EEL, Thomas HH, Jones OT (1914) The geology of the South Wales Coalfield, Part XI. The country around Haverfordwest. London: HMSO.

Sutcliffe AJ (1995) Insularity of the British Isles 250 000-30 000 years ago: the mammalian, including human, evidence. Geological Society, London, Special Publications, 96, 127-140.

Thomas HH (1923) The source of the stones of Stonehenge. Antiquaries Journal 3, 239-260.

Thorpe RS, Williams-Thorpe O (1991) The myth of long-distance megalith transport. Antiquity 65, 64-73.

Thorpe RS, Williams-Thorpe O, Jenkins DG, Watson JS (1991) The geological sources and transport of the bluestones of Stonehenge, Wiltshire, UK. Proceedings of the Prehistoric Society 57, 103-157.

Waldron JWF, DuFrane SA, Schofield DI, Barr SM (2025) Is Britain divided by an Acadian suture? Geology 53, 847-852.

Waldron JWF, Floyd JD, Simonetti A, Heaman LM (2008) Ancient detrital zircon in the closing Iapetus ocean, Southern Uplands terrane, Scotland. Geology 36, 527-530.

Waldron JWF, Schofield DI, Pearson G, Floyd JD, Crowley QG, Simonetti A, Dokken RJ, Pothier HD (2014) Ganderia-Laurentia collision in the Caledonides of Great Britain and Ireland. Journal of the Geological Society 171, 555-569.

Williams-Thorpe O, Thorpe RS (1992) Geochemistry, sources and transport of the Stonehenge  Bluestones. Proceedings of the British Academy 77, 133-161.