EVENTS
Events
Event Date: May 13, 2026, 12:10 PM – 12:50 PM
Brown Bag Seminar
Q-AOS Brown Bag Seminar Series The 230th Seminar "Evidence of the bolide impact responsible for the end-Cretaceous mass extinction and subsequent recovery of marine ecosystems"
The Q-AOS Brown Bag Seminar Series will start every Wednesday at lunchtime from April 2021. The purpose of this webinar series is to provide opportunities not only to learn research related to SDGs in Asian and Oceanian regions, but also to expand your research network across different academic areas.
The webinar is free, available in English and Japanese, and open to everyone! We hope you all come and join us!
The webinar is free, available in English and Japanese, and open to everyone! We hope you all come and join us!
Details
- Date
- 2026/5/13 (Wed) 12:10－12:50
- Style
- Zoom Webinar
- Language
- Bilingual Japanese-English support (simultaneous interpretation)
- Admission Fee
- Free
- The maximum number for the webinar participants
- 500 people
- Contact
- Kyushu University Q-AOS Administrative Office
TEL：+81-92-802-2605
E-mail：aoevent★jimu.kyushu-u.ac.jp
(Please change ★ to @)
Abstract
Approximately 66 million years ago, a bolide impact event triggered the mass extinction of many species, including dinosaurs. The fossil record indicates that more than 70% of species became extinct at the Cretaceous/Paleogene boundary. Despite this catastrophic impact event, it also served as a catalyst for the recovery and subsequent diversification of life. This seminar focuses on a sediment layer known as impact-derived ejecta deposits, formed from material ejected and globally dispersed by the impact. Investigation of this layer allow us to reconstruct the scale of the impact and assess its effects on both marine and terrestrial ecosystems.
Furthermore, we will discuss the recovery and diversification of marine ecosystems after the impact, based on detailed geologic and geochemical analyses.
Furthermore, we will discuss the recovery and diversification of marine ecosystems after the impact, based on detailed geologic and geochemical analyses.
Program
12:10 – 12:15 Introduction
Kun Qian, Associate Professor (Q-AOS Coordinator)
12:15 – 12:40 Seminar
Title: Evidence of the bolide impact responsible for the end-Cretaceous mass extinction and subsequent recovery of marine ecosystems
Speaker: Assistant Professor, Honami SATO (Faculty of Science Department of Earth and Planetary Sciences)
12:40 – 12:50 Q&A
Kun Qian, Associate Professor (Q-AOS Coordinator)
12:15 – 12:40 Seminar
Title: Evidence of the bolide impact responsible for the end-Cretaceous mass extinction and subsequent recovery of marine ecosystems
Speaker: Assistant Professor, Honami SATO (Faculty of Science Department of Earth and Planetary Sciences)
12:40 – 12:50 Q&A
Material
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Application Open
- Application Starts
- Open
- Application Closed
- May 13 2026