日本地球惑星科学連合2025年大会
セッション概要| 地球生命科学 (B) | ||||
|---|---|---|---|---|
| セッション小記号 | 古生物学・古生態学 (PT) | |||
| セッション ID | B-PT03 | |||
| タイトル | バイオミネラリゼーションと古環境プロキシー | |||
| タイトル短縮名 | 生体鉱化作用環境プロキシ | |||
| 開催日時 | 口頭セッション | 5/26(月) PM1-PM2 |
現地口頭会場 | 301A |
| 現地 ポスター コアタイム |
5/26(月) PM3 | 現地ポスター会場 | 展示場ホール7・8 | |
| 代表コンビーナ | 氏名 | 豊福 高志 | ||
| 所属 | 国立研究開発法人海洋研究開発機構 | |||
| 共同コンビーナ１ | 氏名 | Petra Heinz | ||
| 所属 | University of Vienna | |||
| 共同コンビーナ２ | 氏名 | 廣瀬 孝太郎 | ||
| 所属 | 兵庫県立大学 自然・環境科学研究所 | |||
| 共同コンビーナ３ | 氏名 | Lennart Jan de Nooijer | ||
| 所属 | Royal Netherlands Institute for Sea Research | |||
| セッション言語 | E | |||
| スコープ |
This session aims to promote knowledge exchange focused on biomineralization: i.e., the biological component in the formation of hard tissues such as shells and skeletal structures. Specifically, the session seeks to explore the incorporation of major elements and fractionation of isotopes during the formation of biomineralized materials and the paleoceanographic applications of these proxies.
Over geologic time, various organisms have used biomineralization to produce a great diversity of minerals, including calcium carbonate, silicate glass, calcium phosphate, and iron oxide. These minerals precipitate in controlled microenvironments to form specialized structures in the form of shells and (exo)skeletons. Although many aspects of the biomineralization process have remained a mystery, recent advancements in observation technologies have begun to reveal the intricate architectures and sophisticated construction processes at the molecular level.
In paleoenvironmental reconstructions, there is a growing trend toward utilizing multi-proxy approaches by combining biomineral-based proxies, organic fossils, and sedimentary elemental analysis. While such multi-faceted interpretations hold the potential for robust environmental reconstructions, they also require a comprehensive understanding of various biases. These biases include the geological/oceanographic settings in which biogenic remnants were formed, taphonomic processes, and influences from organisms-particularly when their shells or skeletal configurations are not preserved in sediments, possibly due to dissolution processes.
In light of the above, this session invites submissions related to research based on field investigations, culture experiments, and other experimental and analytical methods in this field. The focus should be on the biomineralization, calibration, and evaluation of aquatic proxies and their applications in modern and paleo environmental reconstructions. |
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| 発表方法 | 口頭およびポスターセッション | |||
| 共催情報 | 学協会 | 日本古生物学会，地球環境史学会 | ||
| ジョイント | EGU | |||
| 団体会員以外の組織との共催 | - | |||
| 国際連携団体 | - | |||
| 招待講演 |
今井 宏明（慶應義塾大学） |
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| 時間 | 講演番号 | タイトル | 発表者 |
|---|---|---|---|
| 口頭発表 5月26日 PM1 | |||
| 13:45 - 14:00 | BPT03-01 | New Caledonian Large Benthic Foraminiferal S/Ca signatures as sulfate seawater proxies: Results from controlled growth experiments | Tobias Walla |
| 14:00 - 14:15 | BPT03-02 | Oceanic Imprints: Deciphering the Life History of the Squid, Uroteuthis duvaucelii Through Statolith Microchemistry in the Tropical Western Pacific | Jessica Managa Legaspi |
| 14:15 - 14:30 | BPT03-03 | Search for diatom biomarkers by lipid analysis of diatom species from North Pacific Ocean | 星 恒太郎 |
| 14:30 - 14:45 | BPT03-04 | Native-state ultrastructure characterization of foraminiferal biomineralization system | Daniel Francois Do Nascimento Silva |
| 14:45 - 15:10 | BPT03-05 | バイオミネラルのナノテクトニクス | 今井 宏明 |
| 口頭発表 5月26日 PM2 | |||
| 15:30 - 15:45 | BPT03-06 | Ureolysis-driven microbially-induced carbonate precipitation under high-temperature and anoxic condition | Xiulun Shen |
| 15:45 - 16:00 | BPT03-07 |
Elemental Profiles of a Japanese Precious Coral skeleton, Corallium japonicum : new insights from an alive colony |
Ma Marivic Capitle Pepino |
| 16:00 - 16:15 | BPT03-08 | アコヤガイの貝殻基質タンパク質nacreinによるCaCO3クラスター生成における微量元素の取込制御 | 浪川 勇人 |
| 16:15 - 16:30 | BPT03-09 | 海洋酸性化における海藻の有無が大型底生有孔虫の生理応答に与える影響 | 池村 優利恵 |
| 16:30 - 16:45 | BPT03-10 | Chemical sensing in living benthic foraminifera during the feeding process | Laurie M. Charrieau |
| 16:45 - 17:00 | BPT03-11 | Elemental Distribution Analysis in Calcareous Foraminiferal Cells: Calcium and Co-existing Elements—Insights from Cryo-FIB-SEM | 豊福 高志 |
| 講演番号 | タイトル | 発表者 |
|---|---|---|
| ポスター発表 5月26日 PM3 | ||
| BPT03-P01 | 珪藻遺骸群集からみた諏訪湖における過去2万4千年間の環境変遷 | 正木 紫苑 |
| BPT03-P02 | 輪島市に分布する中新統産サメの歯化石に保存されたアミノ酸：巨大ザメの栄養段階推定に向けて | 清水 彩花 |
| BPT03-P03 | EBSD法による底生有孔虫殻表面における微細構造の可視化 | 川島 颯大 |
| BPT03-P04 | The shell formation process of the foraminifera Sorites orbiculus -With special attention to the ultra-microstructure of the site of calcification | 長井 裕季子 |
| BPT03-P05 | 放射光マイクロX線CTによる珪藻の3Dイメージング精度の向上 | 廣瀬 孝太郎 |