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Table 4 Characteristics of event deposits at Mugi Town

From: Geological record of prehistoric tsunamis in Mugi town, facing the Nankai Trough, western Japan

Event characteristics E1 E2 E3 E4 E5 E6 E7 E8 E9
Number of locations observed 11 4 11 or 12 4–8 2–9 1–4 1–4 1–4 3–6
Type of sediment Sand Sand Granule-pebble Sand Sand Sand Sand Sand Granule-pebble
aGrading No No No Multiple normal grading No No No No No
aMud clast No No Yes No No No No No No
aLaminae No No No No No No Parallel Parallel No
aLower contact Unclear Unclear Unclear Slightly sharp Unclear Sharp (deformed by bioturbation or load cast) Unclear Sharp Not found
aSubunits No No No bYes (2) No No bYes (3) No No
aOther sedimentological characteristics No Poorly sorted Angular gravels, Poorly sorted Sorted other than MG05 Patchy sand Poorly sorted No No Angular gravels, poorly sorted
aDiatoms assemblages within event deposits Freshwater benthic Freshwater benthic, brackish plankton Brackish-marine Mixture composition Not analyzed Brackish-marine Brackish-marine Brackish-marine Not analyzed
  1. aThese items are applied to MG05 core
  2. bNumbers of subunits are indicated in brackets