Webb, P. and Boyd, N. (2023). Geophysical Survey at Trevose Head to St. Merryn Cable Route, St. Merryn, Cornwall. South West Archaeology Ltd.. https://doi.org/10.5284/1116214. Cite this using datacite

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Title:		 Geophysical Survey at Trevose Head to St. Merryn Cable Route, St. Merryn, Cornwall
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Series:		 South West Archaeology Ltd. unpublished report series
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Downloads:
southwes1-515980_212429.pdf (13 MB) : Download
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Biblio 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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DOI
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DOI
https://doi.org/10.5284/1116214
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 The geophysical (gradiometer) survey was undertaken in accordance with current best practice and CIfA guidance; and follows the guidance outlined in Geophysical Survey in Archaeological Field Evaluation (English Heritage 2008); Standard and Guidance for Archaeological Geophysical Survey (CIfA 2014 updated 2020); EAC Guidelines for the use of geophysics in Archaeology: Questions to Ask and Points to Consider (Europae Archaeologiae Consilium/European Archaeological Council 2016). The site comprises 24 fields – of which only small areas of nine fields were surveyed (fields F2-F3, F6-F7, F16, F19-20 and F23-F24)– between Trevose Farm and St Merryn. The survey areas cover largely gently towards the summit of the coastal spur at Trevose Head. The site runs through the parish of St Merryn, from the medieval farmstead of Trevose, formerly belonging to the Robartes family. The cable route traverses areas of the landscape recorded on the HLC as: Coastal Rough Ground, Modern Enclosed Land, Post-Medieval Enclosed Land and Farmland: Medieval. The survey identified 24 groups of anomalies across the surveyed fields. These were predominantly linear ditch and/or bank boundary features associated phases of the existing and historic field-system. Possible pits and/or tree-throws, alongside anomalies associated with agricultural activity, metallic debris and ground disturbance were also apparent. The degree of preservation of the identified features appears to be poor. The majority of the anomaly responses are weak, with some intermittent and barely discernible from the background geology. This suggests that many of the identified features only survive to a shallow depth, their intermittent nature suggesting only partial survival. However, it is possible that additional, even more ephemeral features, are masked by the background geology and modern disturbances. The results of the geophysical survey would suggest that the archaeological potential for the site is mixed, with some areas low (fields F16, F19-20 and F23-24) whilst other areas appear to have moderate to high potential (fields F2-F3 and F6-F7). The majority of the identified features relate to historic phases of field-system which are tentatively suggested as being medieval and post-medieval in date, though the presence of prehistoric activity in the surrounding area means that a prehistoric or Romano-British date cannot be ruled out, particularly towards the north-western end of the survey area. Any development of the site is likely to encounter and destroy the buried archaeological resource (should it be present) and given the results of the geophysical survey further mitigation is recommended, even if targeted to the north-western end.
Author
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Author:		 P Webb
N Boyd ORCID icon
Publisher
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Publisher:		 South West Archaeology Ltd.
Other Person/Org
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Other Person/Org:		 Cornwall and Scilly HER (OASIS Reviewer)
Year of Publication
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Year of Publication:		 2023
Locations
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Locations:
Parish: St. Merryn
District: Cornwall
County: Cornwall
Country: England
Grid Reference: 186185, 75790 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
MAGNETOMETRY SURVEY (Event)
GEOPHYSICAL SURVEY (Event)
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Identifiers:
OASIS Id: southwes1-515980
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Created Date
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Created Date:		 18 Dec 2023