Suitable indicators to determine tsunami impact on coastal areas in Northern Japan, Aomori Prefecture.

ABSTRACT: The 2011 Tohoku-oki tsunami released and mobilized many anthropogenic and natural organic compounds and, hereby, left a clear signature in its sedimentary remnants. In this study, a wide variety of organic marker substances were analyzed in 15 sediment profiles from the Aomori coast (Northern Japan). Total organic carbon (TOC) and fine grain fraction normalization have been tested with the wide dataset, and the already more frequently used TOC normalization was proven to be the more suitable one. Concentration profiles and specific ratios have been interpreted using two different approaches. Differentiation of marine and terrestrial matter characterized mixing processes due to the tsunami impact. Linking constituents to anthropogenic emission sources pointed not only to pollution revealed

SUBMITTER: Frenken M 

PROVIDER: S-EPMC9021103 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature