Arnold, G. and Pearson, E. (2023). Archaeological borehole survey at Bower Farm, Bower Lane, Bridgwater. Worcester: Worcestershire Archaeology. https://doi.org/10.5284/1112950. Cite this using datacite

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Title:		 Archaeological borehole survey at Bower Farm, Bower Lane, Bridgwater
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Series:		 Worcestershire Archaeology unpublished report series
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fieldsec1-512575_208765.pdf (13 MB) : Download
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https://doi.org/10.5284/1112950
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 An archaeological borehole survey was undertaken at Bower Farm, Bower Lane, Bridgwater, Somerset (NGR ST 32070 36721). It was commissioned by RPS Group on behalf of Countryside Properties, in advance of a proposed residential development of the site. Outline planning permission has been granted by Sedgemoor District Council subject to a programme of archaeological works. The site is located on the south-eastern edge of Bridgwater and is bounded by the M5 to the east, a main road to the south and residential areas to the west. The site covered an area of 8.4 hectares and the borehole transect was 370m in length, running perpendicular to the River Parrett. In total 16 windowless boreholes were drilled, 25m apart, along a northeast to southwest aligned transect, during April and August 2022. They were all drilled to a depth of 6m below ground level under the supervision of an archaeologist and the locations were recorded using a Differential Global Positioning System. The cores were wrapped and labelled on site for further analysis under laboratory conditions. The borehole survey largely confirmed the broadly tripartite sequence of the Somerset Levels Formation although only the Middle and Upper Somerset Levels Formation deposits appear to have been sampled during this borehole survey. The Middle Somerset Levels Formation deposits were a minimum and 4m thick and radiocarbon dating indicates that they formed between the late Mesolithic through to the early Iron Age. After which the 2m thick brown clay deposit of the Upper Somerset Levels Formation was deposited. Peats and organic clays within the Middle Somerset Levels Formation were sub-sampled to assess their potential for pollen, plant macrofossil and diatom analysis. Of which only the diatom assemblage appears to have potential for further analysis. The assessment does however confirm that this deposit formed within the coastal zone for the duration of deposition, from the late Mesolithic through to the early Iron Age. This supports the Holocene coastal model that suggests this part of the Parrett Valley was under sea and or saltmarsh from around 5000 BC until the Roman period.
Author
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Author:		 G Arnold
Elizabeth Pearson
Publisher
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Publisher:		 Worcestershire Archaeology
Other Person/Org
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Other Person/Org:		 Somerset HER (OASIS Reviewer)
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Year of Publication:		 2023
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Locations:
Parish: Bridgwater Without
County: Somerset
District: Sedgemoor
Country: England
Grid Reference: 332050, 136728 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
NEOLITHIC PEAT (Tag)
BOREHOLE SURVEY (Event)
EARLY IRON AGE PEAT (Tag)
LATE MESOLITHIC PEAT (Tag)
PEAT (Object England)
LATE MESOLITHIC (Historic England Periods)
NEOLITHIC (Historic England Periods)
EARLY IRON AGE (Historic England Periods)
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OASIS Id: fieldsec1-512575
Report id: 3089
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Created Date
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Created Date:		 23 Aug 2023