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Archaeological


U3 A1 A2 A3


32.


Non-archaeological hazard


Anthropogenic origin of archaeological interest Uncertain origin of possible archaeological interest


Historic record of possible archaeological interest with no corresponding geophysical anomaly


Similarly, the discrimination flags applied to shallow geological features of possible archaeological potential are ascribed as follows:


Table 1.3. Criteria Discriminating Relevance of Palaeogeographic Features to Proposed Scheme Non-Archaeological U2 P1


Feature of non-archaeological interest Archaeological P2 33.


Feature of probable archaeological interest, either because of its palaeogeography or likelihood for producing palaeoenvironmental material


Feature of possible archaeological interest


The grouping and discrimination of information at this stage is based on all available information and is not definitive. It allows for all features of potential archaeological interest to be highlighted, while retaining all the information produced during the course of the geophysical interpretation and desk-based assessment for further evaluation should more information become available.


1.2 Seabed Features Assessment


1.2.1 Introduction 34.


The results of this assessment are collated in gazetteer format and detailed in Appendix 17.3 and are illustrated in Figures 17.2 and 17.3. Twelve UKHO records are located within the current Study Area.


35. A total of 1122 seabed features were identified by WA in the geophysical survey data for East Anglia THREE. A large number of these (592) were interpreted to be probable natural seabed features such as boulders and cobbles on the seabed and natural magnetic fluctuations during the anomaly grouping and discrimination stage of analysis. In total 408 anomalies have been classified as A1 and A2 archaeological potential rating for the East Anglia THREE site.


36.


This includes 36 A1 and A2 anomalies that were identified during the ZEA phase of works that were assessed and grouped by WA (WA, 2012). On review of the 2013 geophysical data a number of these anomalies were re- classified as probable natural features. As the current dataset is of higher quality and has a greater coverage than


Preliminary Environmental Information May 2014 East Anglia THREE Offshore Windfarm Appendix 17.2 Archaeological Review of


Geophysical and Geotechnical Data: Technical Report


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