Tephrostratigraphy of the Osaka Group in southwestern Awajishima Island

View Full Paper

Ask AI

Bookmark

Share

Key Points

This research aims to clarify the stratigraphy of the Osaka Group in southwestern Awajishima Island by studying volcanic ash layers.
Re-examined volcanic ash layers in the Nishidani and Chubu regions using major and trace elemental chemical composition of volcanic glass.
Identified five distinct volcanic ash layers in the Nishidani mountains area.
Modified existing volcanic ash stratigraphy based on observed correlations with wide-ranging volcanic ash layers.
Five volcanic ash layers identified, including the Yawata, Kenjo Hill 1, Maruyama, Kenjo Hill 2, and Kadokawa layers.
The SD187–188 volcanic ash layer from the Nishidani observation well was correlated with the Kadokawa layer.
Dating constraints for the Atago layer indicate deposition from the late Pliocene to early Pleistocene.

Uncovers volcanic ash stratigraphy in Awajishima Island, indicating geological history.

No abstract yet. The journal hasn't published one we can show.

No takes yet. Share an insight, caveat, or question.

Nakatani et al. (2026) studied this question.

View Full Paper

Ask AI

Bookmark

Share