This page contains a Flash digital edition of a book.
and 0.5m height and has a small but distinct associated magnetic dipole measuring 17nT.


65.


76155 has dimensions of 5.7m length, 1.3m width and a height of 0.1m. The debris appears as a hard edged, thick linear dark reflector with a ‘hook’ like end and short, discreet shadow in the sidescan sonar data. The debris is isolated on a sandy and sand wave rich area of the seabed with a magnetic value of 14nT recorded suggesting ferrous material is present.


66.


76185 looks to be a broken up piece of debris, visible as a hard edged, right angled linear anomaly with a bright shadow. The debris has dimensions of 7.7m length, 0.6m width and 0.3m height measurement and is isolated on a sand wave rich area of the seabed. This anomaly has a small magnetic value of 9nT associated with it suggesting it may be ferrous debris.


67.


Five further debris remains have associated magnetic anomalies (76138; 76077; 76096; 70864 and 70901). As above, little detail can be said of the characteristics of these remains, but due to their ferrous content they have all been classified as debris. The largest of these (76077) has a magnetic amplitude of 165nT visible as a thin and distinct large dipole anomaly present on one survey line in the magnetic profile. The dark reflector has dimensions of 2m length, 0.6m width and a height of 0.2m and is visible in the sidescan sonar data as a hard edged rectangular anomaly with a short and bright shadow. The dark reflector is anomalous to the surrounding seabed and located in between sand waves and likely to be a ferrous object.


68.


76138 is located in the centre of the East Anglia THREE site and appears as a hard edged rectangular object in the sidescan sonar data. The anomaly has a very short but bright shadow and has dimensions of 1.7m length, 0.4m width and a height of 0.1m. The magnetic anomaly grouped with this target has an amplitude of 22nT and could indicate the debris is made of ferrous material.


69.


76096 is possibly associated with wreck 71008 situated 190m to the southwest of the vessels southern boundary. Though this is some distance the debris could have become separated from the wreck during its sinking or resultant of the highly mobile currents in the area. The debris has dimensions of 2m length, 0.6m width and a height of 0.3m. The debris is a solid, hard edged oval anomaly visible as a dark reflector with a small shadow and is situated between sand waves with a magnetic value of 13nT indicating it could be ferrous material.


70.


70864 was originally identified in the ZEA phase of works on site and is located on the very western extent of the East Anglia THREE survey area. The anomaly has


Preliminary Environmental Information May 2014 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