Session Sub-categoryPaleontology
Session IDB-PT04
TitleBiomineralization and the Geochemistry of Proxies
Short TitleBiomineralization and Proxies
Main ConvenerNameTakashi Toyofuku
AffiliationJapan Agency for Marine-Earth Science and Technology (JAMSTEC)
Co-Convener 1NameHiroshi Kitazato
AffiliationTokyo University of Marine Science and Technology (TUMSAT)
Co-Convener 2NameJelle Bijma
AffiliationAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
Co-Convener 3NameKotaro Hirose
AffiliationFaculty of Science & Engineering, Waseda University
Session LanguageEE
ScopeBiomineralization 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 FormatOral and Poster presentation
Joint Session withEGU
Co-Sponsoring Societies
(Society Members)
The Palaeontological Society of Japan
Invited Authors
  • Wolf-Gladrow Dieter (Alfred-Wegener-Institute Helmholtz Centre for Polar and Marine Research)
  • Daniel J Conley (Department of Geology, Lund University, Sölvegatan 12, SE-223 62, Lund, Sweden)
Time Presentation No Title Presenter Abstract
Oral Presentation May 20 PM1
13:45 - 14:00 BPT04-01Independent evolution between cell shape and shell materials in foraminifersYurika Ujiie Abstract
14:00 - 14:15 BPT04-02Dual gene repertories for larval and adult shells reveal key molecules for molluscan shell formationTakeshi Takeuchi Abstract
14:15 - 14:30 BPT04-03Transgenerational exposure of the Manila clam Ruditapes philippinarum to ocean acidification: Preferential uptake of metabolic carbon facilitates shell formationLiqiang ZHAO Abstract
14:30 - 14:45 BPT04-04Synthesis of metal nanoparticles by glicolipids of Lactobacillus caseiYugo Kato Abstract
14:45 - 15:00 BPT04-05Is iron toxic to cyanobacteria? Implications for biomineralization in ancient ferrous oceans.Shawn E McGlynn Abstract
15:00 - 15:15 BPT04-06Paleoenvironmental reconstruction using resistant macromolecules in the Cretaceous terrestrial plant fossils and kerogensKen Sawada Abstract
Oral Presentation May 20 PM2
15:30 - 15:45 BPT04-07Coral calcification in temperate region and the role of dissolved inorganic carbon (DIC) and pH in the calcifying fluid Kohki Sowa Abstract
15:45 - 16:00 BPT04-08Boron isotope-based seasonal paleo-pH reconstruction for the Southeast Atlantic – Multispecies approach using habitat preference of planktonic foraminiferaJelle Bijma Abstract
16:00 - 16:25 BPT04-09Mathematical models for the isotopic composition of foraminiferal calcium carbonateWolf-Gladrow Dieter Abstract
16:25 - 16:50 BPT04-10Biosilicification drives a decline of dissolved Si in the oceans through geologic timeDaniel J Conley Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 20 Core Time
BPT04-P01 Discussion in terms of relations between test Bauplan and ecology of foraminifer Hiroshi Kitazato Abstract
BPT04-P02 Estimation of the practical partition coefficients of rare earth elements between limestone and seawater: discussion and application Kotaro Toyama Abstract
BPT04-P03 Temporal size change of the planktonic foraminiferal species Paragloborotalia siakensis (LeRoy). Takuma Suzuki Abstract
BPT04-P04 Variation of geochemical tracers in coral skeletons (Acropora digitifera vs Porites australiensis) based on the temperature controlled culture experiment Mayuri Inoue Abstract
BPT04-P05 Ultra-microstructures of foraminiferal calcification observed using focused ion beam microscopy Yukiko Nagai Abstract
BPT04-P06 Test density of Ammonia sp. under variable pH Takashi Toyofuku Abstract