Mynett, A., Tizzard, L., Andrews, L., Jacob, A. and Howell, D. (2018). Norfolk Boreas Offshore Wind Farm: Archaeological Assessment of Geophysical Data.. Wessex Archaeology. https://doi.org/10.5284/1090958. Cite this using datacite

Title
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Title:		 Norfolk Boreas Offshore Wind Farm: Archaeological Assessment of Geophysical Data.
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Series:		 Wessex Archaeology unpublished report series
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wessexar1-502077_104207.pdf (14 MB) : Download
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DOI
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DOI
https://doi.org/10.5284/1090958
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 Wessex Archaeology was commissioned by Royal HaskoningDHV, on behalf of Vattenfall, to undertake an archaeological assessment of geophysical data acquired from the proposed Norfolk Boreas offshore project area by Fugro Survey B. V. The proposed Norfolk Boreas site is approximately 725 km 2 in size, and is located approximately 72 km from the coast of Norfolk, within the southern North Sea. The assessed data comprised sidescan sonar, multibeam echosounder, marine magnetometer, and sub-bottom profiler datasets. The geophysical, and available geotechnical, data were used to assess for palaeolandscape features and seabed features of archaeological potential. The interpreted stratigraphy of the site spans a period of time from the pre-Anglian to the present. A total of 190 individual palaeogeographic features, mainly dating from the Late Devensian to the Early Holocene, were identified within the study area. These included extensive areas of intermittent high amplitude reflectors, found by vibrocores to represent peat deposits, and associated buried palaeochannels. Additionally, a distinct, upstanding, channel feature has been identified on the seabed in the multibeam echosounder data. Following geoarchaeological assessment, recommendations have already been made for Stage 3 palaeoenvironmental analysis to be undertaken on five vibrocores. The assessment of the geophysical data within the study areas resulted in a total of 551 seabed anomalies identified as being of possible archaeological interest. Archaeological Exclusion Zones are recommended for four identified wreck sites, two anomalies which relate to United Kingdom Hydrographic Office obstruction records for which no corresponding geophysical anomalies were identified, and isolated large magnetic anomalies.
Author
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Author:		 Abbey Mynett
L Tizzard ORCID icon
L Andrews
Alex Jacob
D Howell
Publisher
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Publisher:		 Wessex Archaeology
Year of Publication
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Year of Publication:		 2018
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Locations:
Country: England
Grid Reference: 731221, 360269 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
MARITIME (AO Cat Resource Type)
UNDERWATER SURVEY (Event)
PADDLE STEAMER (Maritime Craft England)
POST MEDIEVAL PADDLE STEAMER (Tag)
WRECK (Monument Type England)
UNCERTAIN WRECK (Tag)
POST MEDIEVAL (Historic England Periods)
UNCERTAIN (Historic England Periods)
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OASIS Id: wessexar1-502077
Report id: 117120.03
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Created Date
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Created Date:		 30 Mar 2022