Title: |
Geophysical Survey at Whirlow Playing Fields, Sheffield |
Series: |
Wessex Archaeology unpublished report series
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Downloads: |
wessexar1-505709_189843.pdf (3 MB)
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Licence Type: |
ADS Terms of Use and Access
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DOI |
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Publication Type: |
Report (in Series)
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Abstract: |
The cart-based gradiometer system used a Leica Captivate 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 gradiometers spaced at 1 m intervals and mounted on a non-magnetic cart frame towed by an All-Terrain Vehicle (ATV). Data were collected with an effective sensitivity of 0.03 nT at a rate of 20 Hz, producing intervals of 0.08 m along transects spaced 4 m apart. The survey has been successful in detecting anomalies of possible archaeological origin in the north-east and south-west of the site. In the north-eastern portion of the survey area a rectilinear enclosure has been identified with a possible boundary ditch 50 m to the south-west. Given its proximity to the hilltop enclosures immediately east in Ecclesall Wood, it is possible this represents associated late prehistoric or Romano-British origin.Further archaeological activity may be evident in the south-west corner of site, in the form of a discreet square anomaly. However, it is also likely that this feature is either geological or modern in origin based on responses in the surrounding areaEvidence of modern land management is present across the site, relating to former field boundaries, as seen on mapping from 1886 – 1967, two different types of land drainage systems, and modern ploughing. The remaining anomalies are thought to be modern or natural in origin. This includes ferrous debris and services. |
Author: |
Alastair Trace
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Publisher: |
Wessex Archaeology
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Year of Publication: |
2022
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Locations: |
Parish: |
Sheffield, unparished area |
Country: |
England |
District: |
Sheffield |
County: |
South Yorkshire |
Grid Reference: 431421, 382320 (Easting, Northing)
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Subjects / Periods: |
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Identifiers: |
OASIS Id: |
wessexar1-505709 |
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Note: |
This report was uploaded to the OASIS system by the named Publisher. The report has been transferred into the ADS Library for public access and to facilitate future research.
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Created Date: |
12 Jul 2022 |