Watson, N. (2016). OPUS II, BELVEDERE, GREATER LONDON: GEOARCHAEOLOGICAL ASSESSMENT OF BOREHOLES. ARCA. https://doi.org/10.5284/1097350. Cite this using datacite

Title
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Title:		 OPUS II, BELVEDERE, GREATER LONDON: GEOARCHAEOLOGICAL ASSESSMENT OF BOREHOLES
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Series:		 ARCA unpublished report series
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Downloads:
arca1-504239_186550.pdf (1 MB) : Download
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ADS, CC-BY 4.0 or CC-BY 4.0 NC.
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DOI
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DOI
https://doi.org/10.5284/1097350
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 Borehole survey In October 2016, ARCA logged five borehole cores totalling 25m from the Opus II site at Belvedere, Greater London. In conjunction with eight borehole logs from ground investigation work by TRC Companies Ltd, the Shepperton Gravel Member was determined to sub crop at between -5.04 OD and -7.68m OD. The site lies over the western margin of a possible west-north-west to east-south-east trending Late Glacial channel of the Thames identified by Young et al (2012). Overlying the Shepperton Gravel Member was a Lower Alluvium, a sandy silt/clay channel fill. This unit, in turn, was overlain by peat possibly filling later channels cut into the top of the alluvium. The peat was characteristic of a wooded, wetland environment subject to flooding. It was between 3.30m and 2.60m thick and sub cropped between -1.84m OD and -3.51m OD. Eventual inundation of this semi terrestrial environment is evidenced by c.2m of fine sandy silt/clays forming an Upper Alluvium. Hiatuses within this deposit are marked by rare, thin, peaty mud horizons. Topsoil and made ground complete the sequence. The site stratigraphy is discussed in the context of the neighbouring Pirelli Works site and more local BGS borehole data
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Author:		 Nick Watson
Publisher
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Publisher:		 ARCA
Year of Publication
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Year of Publication:		 2016
Locations
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Locations:
County: Greater London
District: Bexley
Country: England
Parish: Bexley, unparished area
Grid Reference: 550058, 179640 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
BOREHOLE SURVEY (Event)
PEAT (Object England)
UNCERTAIN PEAT (Tag)
UNCERTAIN (Historic England Periods)
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OASIS Id: arca1-504239
Report id: 1617-5
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Created Date
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Created Date:		 18 Jul 2022