19.4.5 Transboundary Impact Assessment 41.


19.5 Existing Environment 19.5.1 Geology


19.5.1.1 Superficial Geology 42.


The presence of superficial deposits to the east of Great Bealings (Grid Ref: 62300, 24900) is sporadic and comprises mainly of the Kesgrave Catchment Subgroup, described as fluvial, lacustrine and organic deposits, mainly comprising fluvial gravels (BGS Lexicon1). To the west of Great Bealings, the superficial deposits are more dominant and comprise Lowestoft Formation, described as chalky till2 overlying the Kesgrave Catchment Subgroup and in places Glaciofluvial Deposits.


43.


Within the river valleys the superficial deposits change to reflect the current riverine environment comprising Alluvium or Marine & Coastal Muds (depending on proximity to the coast and intertidal influences), River Terrace deposits and more locally head deposits.


44.


The underlying superficial geology is shown on Figure 19.2 with a summary presented in Table 19.9 below.


There are no transboundary impacts in relation to soils, geology and ground conditions.


1 www.bgs.ac.uk viewed on 12 September 2013 2 www.bgs.ac.uk viewed on 12 September 2013


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 19 Soils, Geology and Ground Condition Page 21


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