Sediments of Matsushima Bay, Northeastern Japan: Insights Gained From 5 Years of Sedimentological Analysis Following the 2011 Tohoku Earthquake‐Tsunami

Matsushima Bay was less affected by the 2011 Tohoku Earthquake Tsunami than other Pacific coastal areas of northeast Japan because of the sheltering effects of islands in the bay mouth. To understand the recovery from the 2011 tsunami of benthic environments in Matsushima Bay, we conducted surveys o...

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Veröffentlicht in:	Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2019-08, Vol.20 (8), p.3913-3927
Hauptverfasser:	Ota, Yuki, Suzuki, Atsushi, Yamaoka, Kyoko, Nagao, Masayuki, Tanaka, Yuichiro, Irizuki, Toshiaki, Fujiwara, Osamu, Yoshioka, Kaoru, Kawagata, Shungo, Kawano, Shigenori, Nishimura, Osamu
Format:	Artikel
Sprache:	eng
Schlagworte:	2011 Tohoku earthquake tsunami Benthic environment Benthos Biogeochemical cycle Biogeochemical cycles Biogeochemistry Carbon-nitrogen ratio Coastal zone Cores Earthquakes Ecosystems geochemistry grain size Islands Matsushima Bay sediment Mud Organic carbon Organic matter Sediment Sediment samples Sediment sources Sediment transport Sediments Seismic activity Slopes Surveys Total organic carbon Trace elements Tsunamis
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Zusammenfassung:	Matsushima Bay was less affected by the 2011 Tohoku Earthquake Tsunami than other Pacific coastal areas of northeast Japan because of the sheltering effects of islands in the bay mouth. To understand the recovery from the 2011 tsunami of benthic environments in Matsushima Bay, we conducted surveys of the geochemical properties of surface sediments over 5 years following the earthquake and compared them to sedimentary data before the earthquake. Before the tsunami, the mud fraction (
ISSN:	1525-2027 1525-2027
DOI:	10.1029/2019GC008381