Howard, B. (2023). Andover Link Main. Wessex Archaeology. https://doi.org/10.5284/1116313. Cite this using datacite

Title
Title
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Title:		 Andover Link Main
Series
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Series:		 Wessex Archaeology unpublished report series
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Downloads:
wessexar1-513683_211949.pdf (571 kB) : Download
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Biblio Note		 This report was uploaded to the OASIS system by the named Publisher. The report has not been reviewed by the relevant HER. The report has been transferred into the ADS Library for public access and to facilitate future research.
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DOI
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DOI
https://doi.org/10.5284/1116313
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 The cart-based gradiometer system used a Carlson RTK GNSS instrument, which receives corrections from a network of reference stations operated by the Ordnance Survey (OS) and Leica Geosystems. Such instruments allow positions to be determined with a precision of 0.02 m in real-time and therefore exceeds European Archaeologiae Consilium recommendations (Schmidt et al. 2015). The detailed gradiometer survey was undertaken using four SenSys FGM650/3 magnetic gradiometers spaced at 1 m intervals and mounted on a non-magnetic cart manually pushed across the site by the surveyors. Data were collected with an effective sensitivity of ±8 µT over ±1000 nT range at a rate of 100 Hz, producing intervals of 0.02 m along transects spaced 4 m apart. The survey has produced evidence for archaeological activity across the site. Multiple enclosure ditches have been identified, which are attributable to multi-phase agricultural and settlement activity covering various phases potentially from the Bronze Age through to the modern day. Some correspond to known features in the landscape, including the Andyke scheduled monument, the continuation of the Winchester to Cirencester Roman road, and to existing field boundaries, which provide an interconnected relationship between the archaeological activity and the contemporary. Some settlement activity is highlighted by the presence of penannular, ring, and rectangular features. Several features associated with funerary activity have also been noted across the site. These mostly correspond to Bronze Age barrows and is consistent with the known background of the site. Numerous pit features are evident across the site. Some of these correspond to known gravel and chalk extraction pits, noted on OS maps. However, many are either unmarked extraction pits or pertain to other archaeological activity such as storage or refuse pits. Some areas of historical cultivation are noted on the site. These include areas of ridge and furrow and former field boundaries. A wide variety of geological processes have been identified across the site. Characterised by subtle variation in the magnetic response, these are associated with colluvial activity, natural pitting, and probable alluvial gravels. Multiple areas of increased magnetic response have been identified. These pertain to modern trackways and agricultural processes. However, the southern portion of the site has increased magnetic response due to the frequency of communication towers interfering with the sensors. The remaining anomalies are thought to be modern. These include ploughing, drainage, and services.
Author
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Author:		 Brett Howard
Publisher
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Publisher:		 Wessex Archaeology
Year of Publication
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Year of Publication:		 2023
Locations
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Locations:
District: Test Valley
Parish: Andover
Country: England
County: Hampshire
District: Winchester
Parish: Hursley
Grid Reference: 444977, 129436 (Easting, Northing)
Grid Reference: 437565, 145488 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
UNCERTAIN ENCLOSURE (Tag)
ENCLOSURE (Monument Type England)
MAGNETOMETRY SURVEY (Event)
GEOPHYSICAL SURVEY (Event)
UNCERTAIN (Historic England Periods)
Identifiers
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Identifiers:
OASIS Id: wessexar1-513683
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Created Date
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Created Date:		 18 Dec 2023