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2011 Japan Tsunami - Crossref

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Last Updated: 10 June 2022

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Identifying tsunami traces beyond sandy tsunami deposits using terrigenous biomarkers: a case study of the 2011 Tohoku-oki tsunami in a coastal pine forest, northern Japan

"Abstract" The distributions of sandy tsunami deposits do not accurately reflect the true extents of tsunami inundation areas, contributing to underestimates of inundation by previous tsunamis and hence the magnitudes of their associated tsunamiogenic earthquakes. Concentrations of Peak isolongifolene were also detected in landward soils devastated by the tsunami, in which no sand layer was discernible, but no sand layer was present, but no inundation limit was reached," says the official.

Source link: https://doi.org/10.1186/s40645-022-00491-6


Distribution of the geochemical signature caused by the 2011 Tohoku-oki tsunami in Misawa harbor, northern Japan

"Abstract The 2011 Tohoku-oki tsunami left a distinctive geochemical signature in the sediments of the Misawa harbor on the Aomori coast, not only in vertical stratigraphy but also in lateral distribution. " To identify and characterize geochemical patterns within the harbor area, appropriate indicator compounds for the tsunami impact were used. Although petrogenic-based pollutants indicated a significant local outbreak near the emergence of hotspot formation near the announcement, sewage-derived compounds were widely distributed and originated from a non-traditional source not normally located in the harbor area, despite the fact that petrogenic-derived chemicals did not necessarily reside in the harbor area. Old burden markers are characterized by erosion of polluted pre-tsunami sediment, remobilization of hazardous chemicals, and subsequent deposition of these sediment-bound pollutants in the tsunami layer, in comparison to recently released pollutants. The association of all pollutant groups by their desired accumulation reveals that source-specific compounds have different emission sources but also a topographical map of the pollutant distribution by the 2011 tsunami.

Source link: https://doi.org/10.1007/s11069-022-05391-y

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions