Dr John Crowther MA, PhD

UWLAS Consultant

Lampeter

Tel: +44 (0)1570 424739
E-mail: j.crowther@uwtsd.ac.uk

Dr John Crowther

Consultant in soil/sediment analysis

  • Use of chemical and magnetic properties of soils in archaeological site investigation
  • Palaeoenvironmental reconstruction 

John Crowther undertakes research consultancy work for UWL Archaeological Services (UWLAS). His research is currently focused on the use of soil analytical data (soil phosphate, magnetic susceptibility and a range of other soil properties) and soil micromorphology in archaeological site investigation.

He has undertaken soil/sediment analysis on more than 100 sites in Britain (e.g. Middle Pleistocene hominid site at Boxgrove; the late-Mesolithic to Iron Age sediment and occupation sequence at Goldcliff on the Severn Estuary Levels; medieval depositional sequences in the Tower of London moat; William III’s Privy Garden, Hampton Court Palace; prospection surveys at Strata Florida Abbey, Ceredigion; and the NERC-funded Experimental Earthworks projects at Overton Down and Wareham), including major development sites (e.g. Heathrow Terminal 5, Second Severn Crossing and Stansted Airport); across Europe (e.g. early Neolithic settlement at Ecsegfalva, Hungary; Neolithic occupation/stabling deposits from Ramon IV rock shelter, Makhtesh Crater, Negev, Israel;  houses and yards from Regio I, Insula 9, Pompeii, Italy; early medieval stratigraphy, St Julien, Tours, France and Buraberg, Germany; medieval and later agricultural landscapes of the Plateau de Callerne, Alpes Maritimes, France; Roman-age field ditch sequences near Montpellier, France) and world-wide (e.g. pit fills, dated c. 2.36 million years, from the Maka’alitalu Basin, Hadar, Ethiopia; pre-historic pits, Nkang, Cameroon; excavations of enclosed hilltop site at Fiva, Central Madagascar Highlands; pit fills and old ground surfaces of Middle Neolithic Yangshao period occupation, Yilou, Huizui, China; and Indian burial site at Itapeva, southern Brazil).

Crowther, J. (2013) Loss-on-ignition and magnetic susceptibility of the sedimentary sequences at Southfleet Road. Appendix 3, Pp. 489-500 in The Ebbsfleet Elephant: Excavations at Southfleet Road, Swanscombe in advance of High Speed I, 2003-4 (Ed. F. Wenban-Smith). Oxford Archaeology Monograph, 20.

Macphail, R.I., Crowther, J. and Wenban-Smith, F. (2013) Soil micromorphology, loss-on-ignition and magnetic susceptibility analyses. Chapter 5, Pp. 111-137 in The Ebbsfleet Elephant: Excavations at Southfleet Road, Swanscombe in advance of High Speed I, 2003-4 (Ed. F. Wenban-Smith). Oxford Archaeology Monograph, 20.

Macphail, R.I. and Crowther, J. (2013) Soil micromorphology. Pp. 181-189 in Scots Dyke to Turnpike: The Archaeology of the A66, Greta Bridge to Scotch Corner (Eds J. Zant and C. Howard-Davis). Oxford Archaeology North, Lancaster Imprints, 18.

Macphail, R.I., Crowther, J., and Berna, F. (2012) Soil micromorphology, microchemistry, chemistry, magnetic susceptibility and FTIR in Biddulph, E., Foreman, S., Stafford, E., Stansbie, D., and Nicholson, R., eds., London Gateway. Iron Age and Roman salt making in the Thames Estuary; Excavations at Stanford Wharf Nature Reserve, Essex (Pp. 159 at http://library.thehumanjourney.net/909), Volume Oxford Archaeology Monograph No. 18: Oxford, Oxford Archaeology, pp. 193

Macphail, R.I. and Crowther, J. (2012) Soil micromorphology and bulk analyses. Pp. 270-290 in Landscape and Prehistory of the East London Wetlands: Investigations along the A13 DBFO Roadscheme, Tower Hamlets, Newham and Barking and Dagenham, 2000-2003 (Ed. E. Stafford). Oxford Archaeology Monograph, 17.

Macphail, R.I. and Crowther, J. (2011) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 180-184 in Excavations in North-West Kent, 2005-2007 (Eds A. Simmonds et al.). Oxford Archaeology Monograph, 11. 

Macphail, R.I. and Crowther, J. (2010) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 447-449 in The late Roman cemetery at Lankhills, Winchester: Excavations 2000-2005 (Eds P. Booth, A. Simmonds, A. Boyle, S. Clough, H.E.M. Cool and D. Poore). Oxford Archaeology, Oxford.

Macphail, R.I. and Crowther, J. (2010) Soil Micromorphology. CD-Rom, Section 16, Figs 11-62, in Landscape Evolution in the Middle Thames, Valley: Heathrow Terminal 5 Excavation Volume 2 (Eds J. Lewis, M. Leivers, L. Brown, A. Smith, K. Cramp, L. Mepham and C. Phillpotts). Framework Archaeology, Oxford/Salisbury.

Macphail, R.I. and Crowther, J. (2009) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 113-119 in Living and working in Roman and later London: Excavations at 60-63 Fenchurch Street

(Ed. V. Birbeck and J. Schuster). Wessex Archaeology Report No. 25. 

Macphail, R.I., Allen, M.J., Crowther, J., Cruise, G.M. and Whittaker, J.E. (2010) Marine inundation: effects on archaeological features, materials, sediments and soils. Quaternary International, 214, 44-55.

Macphail, R.I. and Crowther, J. (2009) Illustrations from soil micromorphology and complementary investigations. In: Thiemeyer, Heinrich (Ed) Archaeological Soil Micromorphology – Contributions to the Archaeological Soil Micromorphology Working Group Meeting 3rd to 5th April 2008, Frankfurter Geowiss. Arbeiten, Serie D – Physische Geographie, Bd. 30: 81-87.

Macphail, R.I. and Crowther, J. (2009) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 84-85, 122-123 and 162-163 in Four millennia of human activity along the A505 Baldock bypass, Hertfordshire (Ed. M. Phillips). East Anglian Archaeology, Report No. 128.

Macphail, R.I. and Crowther, J. (2008) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 17-18 and 57 in Archaeology on the A303 Stonehenge Improvement (Eds M. Leivers and C. Moore). Wessex Archaeology: Salisbury.

Macphail, R.I., Crowther, J. and Cruise, G.M. (2008) Microstratigraphy. In: London’s Roman Amphitheatre: Guildhall Yard, City of London (Eds N. Bateman, C. Cowan and R. Wroe-Brown). Museum of London Archaeological Service, London, pp. 16, 95 and 160-164.

Macphail, R.I. and Crowther, J. (2008) Soil micromorphology and chemistry. Pp. 125-132 in An Iron Age Settlement outside Battlesbury Hillfort, Warminster and sites along the Southern Range Road (C. Ellis, A.B. Powell and J. Hawkes, eds). Wessex Archaeology Report 22.

Macphail, R.I., Crowther, J. and Cruise, G.M. (2008) Microstratigraphy. In: London’s Roman Amphitheatre: Guildhall Yard, City of London (Eds N. Bateman, C. Cowan and R. Wroe-Brown). Museum of London Archaeological Service, London, pp. 16, 95 and 160-164.

Macphail, R.I. and Crowther, J. (2008) Soil micromorphology and chemistry. Pp. 125-132 in An Iron Age Settlement outside Battlesbury Hillfort, Warminster and sites along the Southern Range Road (C. Ellis, A.B. Powell and J. Hawkes, eds). Wessex Archaeology Report 22.

Macphail, R.I. and Crowther, J. (2008) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 101-102 in Prehistoric activity at Westwood, Broadstairs (K. Poole and L. Webley, eds). Archaeologia Cantiana, CXXVIII, 75-106.

Macphail, R.I. and Crowther, J. (2008) Soil micromorphology, chemistry and magnetic susceptibility. Pp. 30.1-30.27 (CD-Rom) in From hunter gatherers to huntsmen: a history of the Stansted landscape (Framework Archaeology, eds). Framework Archaeology Monograph No. 2.

Macphail, R.I., Crowther, J. and Cruise, G.M. (2007) Micromorphology and post-Roman town research: the examples of London and Magdeburg. Pp. 303-317 in Post-Roman Towns, Trade and Settlement in Europe and Byzantium. Millennium Studies in the culture and history of the first millennium C.E., Vol 5/1 (J. Henning, ed.). Walter de Gruyter & Co., Berlin.

Macphail, R.I. and Crowther, J. (2007) Parnwell Way, Peterborough PETPAR04 (pit fill 2289): Soil micromorphology, chemistry and magnetic susceptibility. Contribution to: Prehistoric, Roman and Saxon activity on the Fen hinterland at Parnwell, Peterborough (L. Webley, ed.), Proceedings of the Cambridge Antiquarian Society, XCVI, 79-114. (published in full on Oxford Archaeology website)

Crowther, J. (2007) Chemical and magnetic properties of soils and pit fills. Chap. 12 in The Early Neolithic on the Great Hungarian Plain: investigations of the Körös culture site of Ecsegfalva 23, Co. Békés (A. Whittle, ed.). Budapest: Institute of Archaeology, Hungarian Academy of Sciences. Varia Archaeologica Hungarica, XXI.

Macphail, R. and Crowther, J. (2007) Soil micromorphology, chemistry and magnetic susceptibility studies at Huizui (Yilou Region, Henan Province, Northern China), with special focus on a typical Yangshao floor sequence. Indo-Pacific Prehistory Association Bulletin, 27, 103-113

Oldfield, F. and Crowther, J. (2007) Establishing fire incidence in temperate soils using magnetic measurements. Palaeogoegraphy, Palaeoclimatology, Palaeoecology, 249, 362-369.

Crowther, J. (2007) Assessment of loss-on-ignition, phosphate and magnetic susceptibility of soils from the A120 project. Pp. 4 in CD-ROM A slice of rural Essex: archaeological discoveries from the A120 between Stansted Airport and Braintree (J. Timby, R. Brown, E. Biddulph, A. Hardy and A. Powell, eds). Oxford Wessex Archaeology, Monograph 1.

Crowther, J. (2007) Soil phosphate studies (Chap. 9), Soil thin sections (Chap. 10), Soil phosphate studies at Holywood and Pict’s Knowe – soil analyses (Appendix 3). Pp. 120-122, 123-125, 230-232 and 286-290 in Place and Memory: Excavations at Pict's Knowe, Holywood and Holm Farm, Dumfries and Galloway, 1994-8 (ed. J.S. Thomas). Oxford: Oxbow Books. 320 pp.