NHER 66697 (Negative evidence record) - Site where geophysical survey identified no evidence for archaeologically-significant remains

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Summary

A geophysical survey of this site in 2021 identified no potentially archaeologically-significant anomalies. This negative result was unexpected as a complex group of cropmarks thought to represent an area of former settlement had previously been recorded at this location (NHER 50730). It is felt that this was most likely due to ground conditions being unfavourable for magnetic survey, rather than a genuine absence of significant remains.

Protected Status/Designation

None recorded

Location

Map sheet	TG21SE
Civil Parish	RACKHEATH, BROADLAND, NORFOLK

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Full Description

November 2016. Desk-based Assessment.
Assessment of potential archaeological impact of large proposed development.
See report (S1) for further details.
P. Watkins (HES), 7 March 2023.

October 2021. Geophysical Survey.
Magnetometer survey of part of large proposed development area (Area 5).
This survey identified no potentially archaeologically-significant anomalies.
The negative result of this survey is somewhat surprising, given that cropmarks thought to represent a settlement of unknown date are visible on aerial photographs of this field (recorded as NHER 50730). It is suggested that this may be due to there being an insufficient magnetic contrast between the fills of any features present and the surrounding geological deposits. This location also appear to have had slightly increased natural background enhancement, which may have contributed to the masking of weak archaeological anomalies.
See report (S2) for further details.
P. Watkins (HES), 7 March 2023.

March 2022. Desk-based Assessment.
Updated archaeological assessment of large proposed development.
See report (S2) for further details.
P. Watkins (HES), 7 March 2023.

Associated Sources (3)

<S1> SNF102024 Unpublished Contractor Report: Gajos, P. 2016. Archaeological Desk-based Assessment, North Rackheath, Norfolk. Lanpro Services.
<S2> SNF102478 Unpublished Contractor Report: Kenyon, R. and Brown, H. 2021. Geophysical Survey Report. Rackheath, Broadland, Norfolk. Magnitude Surveys. MSTG937.
<S3> SNF102025 Unpublished Contractor Report: [Unknown]. 2022. Green Lane West, Rackheath. Archaeological & Heritage Assessment. CSA Environmental. CSA/5046/01.