This page contains a Flash digital edition of a book.
of 422nT it has been interpreted as a possible buried ferrous object. This target was also identified in the magnetic data for the ZEA phase of work.


89.


71018 is a large magnetic anomaly located in the central northern extent of East Anglia THREE that measures 57nT. This target has been recorded previously, first detected in 1969 as a magnetometer anomaly that was reported as representing notable debris (SeaZone 11089). No remains were observed in either the sidescan sonar or bathymetry data at this location which may indicate that potential ferrous debris remains are buried by sands.


90. A large number of the magnetic anomalies identified on site were not able to be cross referenced in any other of the geophysical datasets. Due to the geological nature of the site some of these may be natural geological fluctuations and/or noise, however unless this can be proven otherwise all of these 217 magnetic anomalies have been classified as A2 archaeological potential and interpreted to be possibly buried ferrous debris.


1.2.18 Mounds 91.


Two (2) mound features have been identified in East Anglia THREE survey (76452 and 70861). 70861 was identified in the ZEA phase of works but not the latest dataset, however this was originally located on the edge of a sand wave and therefore may have since been buried. The mound was originally identified in both the multibeam bathymetry and sidescan sonar datasets and has dimensions of 12.6m length, 4m width and height of 0.2m. The mound is visible in the sidescan data as a linear dark reflector lying perpendicular to the crests of the surrounding sand waves. The bathymetry data shows it to be a linear mound joining two sand waves; it does not appear to be part of the sand waves themselves. It is aligned NE-SW and approximately perpendicular to the sand wave crests in a general depth of approximately 39 m.


92.


76452 is a mound feature located in the northern extent of the East Anglia THREE site and has dimensions of 5.2m length, 3.9m width and a height of 0.8m. The mound was identified in the multibeam bathymetry data only, discernible as a rounded mound in area of frequent sand ripples with a possible associated scour mark on its northern side. It is possible that this may represent buried anthropogenic material.


Preliminary Environmental Information May 2014


1.2.19 Discussion & Recommendations 93. A total of 412 seabed features of possible archaeological interest have been identified in the East Anglia THREE survey area. The most important of these are the wreck and possible wreck locations 71016, 76056, 71008, 76145, 70911, 71012, East Anglia THREE Offshore Windfarm


Appendix 17.2 Archaeological Review of


Geophysical and Geotechnical Data: Technical Report


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164  |  Page 165  |  Page 166  |  Page 167  |  Page 168  |  Page 169  |  Page 170  |  Page 171  |  Page 172  |  Page 173  |  Page 174  |  Page 175  |  Page 176  |  Page 177  |  Page 178  |  Page 179  |  Page 180  |  Page 181  |  Page 182  |  Page 183  |  Page 184  |  Page 185  |  Page 186  |  Page 187  |  Page 188  |  Page 189  |  Page 190  |  Page 191  |  Page 192  |  Page 193  |  Page 194  |  Page 195  |  Page 196  |  Page 197  |  Page 198  |  Page 199  |  Page 200  |  Page 201  |  Page 202  |  Page 203  |  Page 204  |  Page 205