Automated Organization Profile

Atmosphere and Ocean Research Institute (AORI), Tokyo University

Current S-Index

1.5

Sum of Dataset Indices for all datasets

Average Dataset Index per Dataset

0.8

Average Dataset Index per dataset

Total Datasets

2

Total datasets in this organization

Average FAIR Score

71.2%

Average FAIR Score per dataset

Total Citations

0

Total citations to the organization's datasets

Total Mentions

0

Total mentions of the organization's datasets

S-Index Interpretation

S-Index Over Time

Cumulative Citations Over Time

Cumulative Mentions Over Time

Datasets

HOLOCENE OVERWASH OCCURRENCE AGE IN THE ISUMI RIVER LOWLAND, EASTERN BOSO PENINSULA, JAPAN

Analysis of the chronological data and observation of a lagoonal sediment core reveal sand washover events between around 2.4 to 2.5 cal. ky BP in the Isumi River lowland. We conducted radiocarbon dating with AMS and constructed an age-depth model using the latest calibration curve and appropriate model routine. In the middle to lower part of the core, dark-gray sand layers are repeatedly deposited. Sand layers may exhibit an erosional surface at the base with fining upward grading. The overwash layers are composed of well-rounded sand with occasional gravel, indicative of transportation. overwash sediment characteristics are consistent with proximal marine deposits, suggesting an ocean origin (though riverine sediment is also similar in character). The age-depth model indicates very high sediment accumulation rates associated with overwash deposits. Based on the amount of accumulated sediment, relatively large scale redeposition events occurred during this period but more information is needed to constrain the mechanism(s) causing the events. We also present a local reservoir age correction compatible with the Marine20 calibration curve.

Authors

  • Oda, Soichiro ;
  • Obrochta, Stephen ;
  • Fujiwara, Osamu ;
  • Yokoyama, Yusuke ;
  • Miyairi, Yosuke ;
  • Hatakeyama, Yoshiya
0 Citations0 Mentions69% FAIR0.7 Dataset Index
10.5281/zenodo.10124615November 2023

HOLOCENE OVERWASH OCCURRENCE AGE IN THE ISUMI RIVER LOWLAND, EASTERN BOSO PENINSULA, JAPAN

Analysis of the chronological data and observation of a lagoonal sediment core reveal sand washover events between around 2.4 to 2.5 cal. ky BP in the Isumi River lowland. We conducted radiocarbon dating with AMS and constructed an age-depth model using the latest calibration curve and appropriate model routine. In the middle to lower part of the core, dark-gray sand layers are repeatedly deposited. Sand layers may exhibit an erosional surface at the base with fining upward grading. The overwash layers are composed of well-rounded sand with occasional gravel, indicative of transportation. overwash sediment characteristics are consistent with proximal marine deposits, suggesting an ocean origin (though riverine sediment is also similar in character). The age-depth model indicates very high sediment accumulation rates associated with overwash deposits. Based on the amount of accumulated sediment, relatively large scale redeposition events occurred during this period but more information is needed to constrain the mechanism(s) causing the events. We also present a local reservoir age correction compatible with the Marine20 calibration curve.

Authors

  • Oda, Soichiro ;
  • Obrochta, Stephen ;
  • Fujiwara, Osamu ;
  • Yokoyama, Yusuke ;
  • Miyairi, Yosuke ;
  • Hatakeyama, Yoshiya
0 Citations0 Mentions73% FAIR0.8 Dataset Index
10.5281/zenodo.10124616November 2023