島根大学総合理工学部地球資源環境学教室
島根大学大学院総合理工学研究科地球資源環境学教室
島根大学
島根大学地球資源環境学研究報告

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島根大学地球資源環境学研究報告 15 巻
1996-12-25 発行

島根県出雲湾入部における下部・中部中新統の珪藻化石

Diatoms from the Lower-Middle Miocene in the Izumo Basin, Shimane Prefecture,southwest Japan
野口 寧世
本文ファイル
c006015016.pdf ( 1.64 MB )
内容記述
Diatom flora were examined in 14 samples from Lower-Middle Miocene Hata,Kawai and Kuri Formations in the southern Izurno Basin. Two genera and three species of Centrales and 17 genera and 33 species of Pennales were identified from these samples. Diatoms are mainly benthos in stream and fresh water facultative plankton. Brackish to marine diatoms were found from the Middle Miocene Kuri Forrnation. Fresh to brackish diatorns are obtained from the Lower Miocene (-19Ma) Hata Formation, as well as the Middle Miocene Kawai and Kuri Formations (16-15Ma). This indicates that a marine transgression possibly took place in the Early Miocene in the Izumo basin.13;
Doi
https://doi.org/10.24568/31108
Pages