Brunning, E. (2022). Geophysical Survey at Land at Higher Witheven and Canworthy Farms. Archaeological Services WYAS. https://doi.org/10.5284/1109796. Cite this using datacite

Title
Title
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Title:		 Geophysical Survey at Land at Higher Witheven and Canworthy Farms
Series
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Series:		 Archaeological Services WYAS unpublished report series
Downloads
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Downloads:
archaeol11-506992_189283.pdf (27 MB) : Download
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DOI
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DOI
https://doi.org/10.5284/1109796
Publication Type
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 The cart-based survey was undertaken using an eight channel SenSYS MX V3 system containing eight FGM650 sensors. Readings are taken every 20MHz (between 0.05 and 0.1m). Data were recorded onto a device, using a Carlson GNSS Smart antenna, for centimetre accuracy. These readings were stored in the memory of the instrument and downloaded for processing and interpretation. DLMGPS and MAGNETO software, alongside bespoke in-house software was used to process and present the data. A geophysical (magnetometer) survey was undertaken on approximately 69ha of land proposed for solar development within a larger redline area located to the north of Canworthy Water, Launceston, Cornwall. Anomalies of both a definite and a possible archaeological origin have been detected including ring ditches, a ‘D’ shaped enclosure, ditches, pits, field systems and possible trackways indicative of a prehistoric landscape. Medieval/post-medieval ridge and furrow cultivation has also been detected along with former field boundaries, in a typical Cornish construction. Geological responses can be seen throughout and are typically noisy given the magnetic Cornish soils. Magnetic disturbance within the Site can be assigned to noise from adjacent farm buildings, electricity pylons and metal fencing in the boundaries. Based on the geophysical survey, the archaeological potential of the Site is high in the southeast and moderate to low elsewhere.
Author
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Author:		 Emma Brunning
Publisher
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Publisher:		 Archaeological Services WYAS
Year of Publication
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Year of Publication:		 2022
Locations
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Locations:
District: Cornwall
County: Cornwall
Country: England
Parish: Warbstow
Grid Reference: 222899, 92862 (Easting, Northing)
Grid Reference: 222475, 92604 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
EARLY PREHISTORIC RING DITCH (Tag)
POST MEDIEVAL CORNISH HEDGE (Tag)
UNCERTAIN FIELD SYSTEM (Tag)
D SHAPED ENCLOSURE (Monument Type England)
FIELD SYSTEM (Monument Type England)
RING DITCH (Monument Type England)
CORNISH HEDGE (Monument Type England)
MAGNETOMETRY SURVEY (Event)
GEOPHYSICAL SURVEY (Event)
LATER PREHISTORIC D SHAPED ENCLOSURE (Tag)
POST MEDIEVAL (Historic England Periods)
LATER PREHISTORIC (Historic England Periods)
EARLY PREHISTORIC (Historic England Periods)
UNCERTAIN (Historic England Periods)
Identifiers
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Identifiers:
OASIS Id: archaeol11-506992
Report id: 3781
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Created Date
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Created Date:		 11 Jul 2023