Estimation of the Source of Sand Beach Sediment in Tsuruga Bay, Fukui Prefecture: Focusing on Grain Size Analysis and Composition of Clastics

Akiko MATSUMOTO; Kiyokazu KAWAJIRI; Sumiko KUBO

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[J] Poster

H (Human Geosciences ) » H-QR Quaternary research

[H-QR05] Quaternary, Diachronic dynamics of human-environment interactions

Sun. May 26, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Mamoru Koarai(Earth Science course, College of Science, Ibaraki University), Ken Ikehara(Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Technology), Masayuki Hyodo(Research Center for Inland Seas, Kobe University)

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[HQR05-P11] Estimation of the Source of Sand Beach Sediment in Tsuruga Bay, Fukui Prefecture: Focusing on Grain Size Analysis and Composition of Clastics

*Akiko MATSUMOTO¹, Kiyokazu KAWAJIRI², Sumiko KUBO¹ (1.School of Education, Waseda Univ., 2.Sagamihara City Museun)

Keywords:sand beach sediment, grain size analysis, composition of clastics

In order to clarify the dynamics of the beach sand in the sandy coast of Tsuruga Bay, we carried out grain size analysis, composition of clastics and color analysis of beach and river bed sediments. The west coast of Tsuruga Bay consists mainly of granitic rocks and the east coast mainly of accretionary complex. As the result we revealed that the transportation and sedimentation process along Tsuruga Bay coasts might not be closed within each coast and its inflowing rivers, but it may be influenced by the coastal current.