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Table 7 Contribution of the different geologic units to the Eurocode 8 site classes

From: Seismic microzonation of a region with complex surficial geology based on different site classification approaches

Site class % of total area Bedrock (%) Till (%) Glaciofluvial sediments (%) Clay (%) Sand and gravel (%) Total (%)
A 53.2 94.5 4.8 0.0 0.4 0.3 100.0
B 7.6 81.6 7.4 0.1 6.2 4.7 100.0
C 4.9 14.4 11.6 8.4 22.6 43.1 100.0
D 10.1 2.4 3.5 2.2 69.9 21.9 100.0
E* 24.1 21.5 2.4 51.7 24.4 100.0
  1. * VS,avg estimated