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Short title
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Phanerozoic biodiversity change
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Oral presentation
Date/Room/Chair
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May 19 AM2 (11:00 - 12:45)
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101A
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Yusuke Sawaki
/ Tomohiko Sato
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Poster presentation
Date/Room
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May 19 (Core Time 18:15 - 19:30)
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Convention Hall
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Contact
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Yukio Isozaki
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Email
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isozaki@ea.c.u-tokyo.ac.jp
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Convener
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Yukio Isozaki
/ Yusuke Sawaki
/ Tomohiko Sato
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Scope
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Biotic evolution was the consequence of the repeated extinctions and following diversifications in the past, which occurred with large-scale environmental changes caused by extremely rapid and drastic forcings to the biosphere. Irreversible and episodic changes in material cycling on the planet and in glactic cosmic radiation are recently nominated as possible major mechanisms to drive major environmental perturbations. The biosiversity change in the fossiliferous Phanerozoic record is characterized by the 5 major mass extinctions within the long-term trend of diversity increase. Nonetheless each extinction has been explained in various way, rather in an ad hoc manner, without any universal explanation. In addition, the role of nutrient supply (essential elements) appears more important in deciding the course of evolution. This session re-explores and discusses the Phanerozoic biodiversity change under the latest geological aspects.
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Notes
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| Time |
Presentation No |
Title |
Author |
Presenter |
Abstract |
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Oral Presentation May 19 AM2 (11:00-12:45) 101A to the top
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11:00 - 11:15
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BPT27-01
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A unique condition for the SSF diversification and the phosphogenesis in the Early Cambrian in Chengjiang, South China
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Tomohiko Sato
Yukio Isozaki
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Tomohiko Sato
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11:15 - 11:30
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BPT27-02
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n-alkanes and isoprenoids extracted from the Ediacaran-Early Cambrian section in the Three Gorges area, South China
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Kentaro Yamada
Yuichiro Ueno
Keita Yamada
other
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Kentaro Yamada
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11:30 - 11:45
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BPT27-03
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Litho-, bio-, and C-Sr isotope stratigraphy of the Middle Permian carbonates in central Sichuan, South China
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Takumi Futamori
Yukio Isozaki
Tomomi Kani
other
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Yukio Isozaki
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11:45 - 12:00
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BPT27-04
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Active anaerobic respiration in an anoxic ocean prior to the end-Guadalupian (Permian) extinction
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Masafumi Saitoh
Yuichiro Ueno
Manabu Nishizawa
other
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Masafumi Saitoh
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12:00 - 12:15
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BPT27-05
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The Guadalupian (Permian) minimum of seawater 87Sr/86Sr
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Tomomi Kani
ISOZAKI, Yukio
KOFUKUDA, Daisuke
other
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Tomomi Kani
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12:15 - 12:30
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BPT27-06
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Meteorite impact, volcanism, and radiolarian faunal turnover recorded in the Upper Triassic bedded chert in Japan
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Tetsuji Onoue
Honami Sato
Tatsuo Nozaki
other
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Tetsuji Onoue
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12:30 - 12:45
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BPT27-07
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Stem evolution and Crown evolution; Role of atomic bomb magma
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Shigenori Maruyama
Toshikazu Ebisuzaki
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Shigenori Maruyama
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| Presentation No |
Title |
Author |
Presenter |
Abstract |
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Poster Presentation May 19 Core Time (18:15-19:30) Convention Hall to the top
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BPT27-P01
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Intensive continental weathering rate in the Lower Cambrian: evidenced from Sr isotope ratios preserved in the strata at
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Yusuke Sawaki
Tsuyoshi Komiya
Shigenori Maruyama
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Yusuke Sawaki
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BPT27-P02
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Platinum group element anomalies in the Triassic-Jurassic deep-sea sediments
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Wataru Fujisaki
Yusuke SAWAKI
Shinji YAMAMOTO
other
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Wataru Fujisaki
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BPT27-P03
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Detection of cosmogenic material in deep-sea sediments based on platinum group element (PGE) abundances
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Hisashi Asanuma
Wataru Fujisaki
Yusuke Sawaki
other
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Hisashi Asanuma
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BPT27-P04
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High-resolution litho- and chemo- stratigraphy across the Middle-Late Permian boundary in the mid-oceanic limestone
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Daisuke Kofukuda
ISOZAKI, Yukio
IGO, Hisayoshi
other
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Daisuke Kofukuda
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BPT27-P05
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Litho-, bio-, and C, Sr isotope stratigraphy of the Middle Permian mid-Panthalassan paleo-atoll carbonates
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Takahiro Nishida
Yukio Isozaki
Tomomi Kani
other
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Takahiro Nishida
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BPT27-P06
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Detailed stratigraphy of the uppermost Iwaizaki limestone (Middle Permian) in the South Kitakami beltin
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Ryutaro Hayashi
Yukio Isozaki
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Ryutaro Hayashi
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BPT27-P07
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Paleogeographic position of the Permian Iwaizaki limestone in South Kitakami belt
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Yukio Isozaki
Ryutaro Hayashi
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Yukio Isozaki
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