Koichiro Tanigawa   Masayuki Hyodo   Hiroshi Sato   
HOLOCENE 23(7) 1039-1051 2013年7月 [査読有り]
This study presents relative sea-level (RSL) change from 11,200 to 500 cal. BP in the Toyooka Basin, western Japan. Diatom assemblage and sedimentary sulfur analyses were performed for 32 sediment cores obtained from thick Holocene fluvial and mar...
第四紀研究 = The Quaternary research 50(1) 61-69 2011年2月
瀬戸内海中部・出崎海岸(岡山県玉野市)の埋没泥炭層について,その堆積環境を再検討し,完新世の相対的海水準変動との関係を考察した.泥炭層は,完新世中期のおもに約7,000~6,600 cal BPの間に,塩性湿地で形成された.この時期は,瀬戸内海沿岸域における完新世の相対的高海水準期に相当し,泥炭層は約7,000 cal BPに海水準上昇が鈍化する一方で,当該地域に及んだ海進に伴って形成されはじめた.泥炭層は高潮位面と最高潮位面との間で形成されたと考えられ,当時の潮位差が現在と同程度であった...
Japanese Journal of Limnology (Rikusuigaku Zasshi) 52(3) 189-198 1991年2月
A study using diatom analysis combined with selective chemical extraction was conducted to interpret paleoenvironmental changes in the core sediment obtained near the Maruyama-gawa River in Toyooka Basin, Hyogo Prefecture. A sediment sample was le...
Sedimentary sulfur mainly of FeS2 (pyrite) was oxidized to sulfate with 30% H2O2 and the concentration of sulfate was determined by the turbidimetric method.<br>Treatment procedures were as follows.<br>1) Wet sedim...