JpGU Meeting 2019
Session outline| Biogeosciences (B) | ||
|---|---|---|
| Session Sub-category | Paleontology(PT) | |
| Session ID | B-PT04 | |
| Title | Biomineralization and the Geochemistry of Proxies | |
| Short Title | Biomineralization and Proxies | |
| Main Convener | Name | Takashi Toyofuku |
| Affiliation | Japan Agency for Marine-Earth Science and Technology (JAMSTEC) | |
| Co-Convener 1 | Name | Hiroshi Kitazato |
| Affiliation | Tokyo University of Marine Science and Technology (TUMSAT) | |
| Co-Convener 2 | Name | Jelle Bijma |
| Affiliation | Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung | |
| Co-Convener 3 | Name | Kotaro Hirose |
| Affiliation | Faculty of Science & Engineering, Waseda University | |
| Session Language | E | |
| Scope | Biomineralization and the Geochemistry of Proxies - Biology, laboratory culture-experiments and their applications to the paleo-research - In order to reconstruct the Earth climate system, marine paleoclimatologists resort to transfer functions or geochemical proxies, which are produced or affected by organisms. The relationships used for reconstructions are generally based on field calibrations or derived from laboratory experiments. The danger of these so-called empirical relationships is that they may be valid only within the restricted parameter space of their calibration. Application of proxy relationships to very different environmental settings (e.g. high vs. low latitude or glacial vs. interglacial) requires a mechanistic understanding of these relationships. Much progress can be expected by a better understanding of the biomineralization mechanisms and the incorporation of proxy signals. In this session we facilitate contributions related to the biomineralization, calibration and validation of marine proxies from field study, laboratory culture experiment and paleo-environmental reconstruction. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | EGU | |
| Invited Authors | Inge van Dijk (Alfred Wegener Institute Helmholtz centre for polar and marine research) Yasuhide Nakamura (National Museum of Nature and Science) Takuma Suzuki (Shimane University) Shunichi Kinoshita (Tohoku University, Graduate School of Science) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 26 AM1 | ||||
| 09:00 - 09:15 | BPT04-01 | Long term size changes of the Middle Miocene planktonic foraminifera in the eastern equatorial Pacific | Takuma Suzuki | |
| 09:15 - 09:30 | BPT04-02 | Mathematical models for the geochemical composition of foraminiferal calcium carbonate | Jelle Bijma | |
| 09:30 - 09:45 | BPT04-03 | Response of structurally substituted sulfur in foraminifera shells to glacial-interglacial changes: a 1.0-million-year record from the Ontong-Java Plateau | Toshihiro Yoshimura | |
| 09:45 - 10:00 | BPT04-04 | Transcript assembly and quantification identify candidate genes for foraminiferal calcification | Yurika Ujiie | |
| 10:00 - 10:15 | BPT04-05 | Characterization of cogwheel structures in foraminifera | Inge van Dijk | |
| 10:15 - 10:30 | BPT04-06 | Benthic foraminiferal characterizations from the seascape point of view | Hiroshi Kitazato | |
| Oral Presentation May 26 AM2 | ||||
| 10:45 - 11:00 | BPT04-07 | Skeleton microstructures of aposymbiotic scleractinian coral cultured in seawater with various Mg/Ca ratios | Satoko Motai | |
| 11:00 - 11:15 | BPT04-08 | Skeletal formation of scleractinian corals in response to Mg/Ca fluctuation | Tomihiko Higuchi | |
| 11:15 - 11:30 | BPT04-09 | Inter-specific variations in trace element concentrations of modern brachiopod shells collected from Otsuchi Bay, Japan | Takuya Nishio | |
| 11:30 - 11:45 | BPT04-10 | Trace element concentrations of sub-tropical modern brachiopod Basiliola lucida collected off Okinawa-jima, Japan | Hideko Takayanagi | |
| 11:45 - 12:05 | BPT04-11 | Structural difference between phaeodarians and radiolarians (unicellular zooplankton) | Yasuhide Nakamura | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 26 PM2 | |||
| BPT04-P01 | Living (stained) benthic foraminifera in the West-Gironde mud patch (Bay of Biscay, France): An ongoing survey for the European Community. | Christophe Fontanier | |
| BPT04-P02 | Biomonitoring in the Cassidaigne Canyon (NW Mediterranean): the resilience and recovery of deep-sea benthic foraminifera at a bauxite industrial waste site | Pauline Duros | |
| BPT04-P03 | Comparison between assemblages of diatom fossil and biomarkers in surface sediments from Seto Inland Sea | Kotaro Hirose | |
| BPT04-P04 | Combined impacts of ocean acidification and desalination: culture experiments on the coastal species Ammonia sp. and Elphidium crispum | Laurie Marie Charrieau | |
| BPT04-P05 | Effects on larger benthic foraminiferal shell density under global warming | Shunichi Kinoshita | |
| BPT04-P06 | Estimation of the calcification rate of foraminifera -exceptionally fast extending of the shell- | Yukiko Nagai | |
| BPT04-P07 | Estimation of foraminiferal calcification process from live imaging and FIB-SEM approach | Takashi Toyofuku | |
| BPT04-P08 | Toward a better understanding of planktic foraminiferal proxies: Are they photosymbiotic or not? | Haruka TAKAGI | |
| BPT04-P09 | Evaluation of geochemistry in hypercalcified demosponges as a paleoceanographic proxy | Ryuji Asami | |