Extraterrestrial <sup>3</sup>He flux variability during the Triassic recorded in pelagic bedded cherts of Japan
He ratios, indicating a sudden influx of fine-grained extraterrestrial material. The timing of this excursion closely coincides with the Manicouagan impact event (215.4 Ma), suggesting a link between asteroid disruption and enhanced dust production during the Triassic.
Authors
- Honami Sato (ORCID: https://orcid.org/0000-0002-1002-6453)
- Tetsuji Onoue (ORCID: https://orcid.org/0009-0009-2437-8749)
- Kohei Setoyama
- Takuma SHIOHARA
- Naoto TAKAHATA (ORCID: https://orcid.org/0000-0003-0124-208X)
Institutions
- Kyushu University (JP)
- Sphere Institute (US)
- The University of Tokyo (JP)
Publication Details
- Journal
- Proceedings of the Japan Academy Series B
- Published
- 2026-05-10
- DOI
- https://doi.org/10.2183/pjab.102.012
- Primary Topic
- Paleontology and Stratigraphy of Fossils
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- University of Tokyo
- Japan Society for the Promotion of Science