71017 and 71020 have all been assigned an A1 rating and are considered of high archaeological potential. It is recommended that a 100m exclusion zone be implemented around each of these wrecks. All A3 wrecks of archaeological value should also be assigned a 100m exclusion zone as a precaution (71005, 71013, 71014 and 71015) (Figure 17.2).


94.


The remainder of the identified seabed anomalies have been given an A2 rating and classified as of possible archaeological potential. No further work for these features is recommended at this time, though further investigation may be required on a site by site basis should the proposed scheme directly impact upon these features. Of particular note are the debris fields which can cover a large area of the seabed.


1.3 Palaeogeographic Assessment


1.3.1 Introduction 95.


The palaeogeographic assessment of the East Anglia THREE site comprised a review of the geophysical data in conjunction with the known geology of the area (Cameron et al. 1992), previous work undertaken during the ZEA (WA 2012) and previous survey reports (EMU 2013, Gardline Geosurvey 2011).


96.


Two previous boreholes are present within East Anglia Three (EA10-G-002 and EA10- G030) and one in East Anglia Four (EA10-G-006), the results of which were used to ground truth the geophysical interpretation. The assessment was undertaken with the aim of identifying features with archaeological potential within East Anglia Three, namely indicators of past land surfaces.


97. As part of the palaeogeographic assessment, the geophysical (sub-bottom profiler and MBES) data were analysed for evidence of a number of specific features of archaeological interest. Definitions of these features are detailed in Table 1.6:


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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