[Coral-List] INQUA 2015 - Modern calibration of palaeoenvironmental proxies from biogenic carbonate geochemistry
Versteegh, Emma A (382D-Affiliate)
Emma.Versteegh at jpl.nasa.gov
Thu Nov 20 11:37:10 EST 2014
We encourage you to submit an abstract to the session “Modern calibration of palaeoenvironmental proxies from biogenic carbonate geochemistry” to be held at the INQUA 2015 congress in Nagoya (Japan) on July 27 - August 2, 2015 (http://convention.jtbcom.co.jp/inqua2015/session/p28.html).
Geochemical signatures from biogenic carbonates are being increasingly employed as palaeoenvironmental proxies. Some of these proxies (e.g. ostracods, foraminifera) grow in specific seasons allowing the reconstruction of seasonally-weighted environmental records. Others (e.g. corals, mollusc shells, otoliths, faunal teeth) have incremental growth structures, which allow the reconstruction of snapshots of palaeoenvironmental variability at sub-seasonal timescales. These proxies accumulate in geological or archaeological deposits, and can be directly dated using methods such radiocarbon, U-Th series, or amino acid racemisation, providing high resolution, temporally-constrained palaeoenvironmental data. As with any living creature, the life cycles of carbonate-secreting organisms are complex. It is becoming increasingly evident that inter and intra-species differences in growth rates, physiology, and environmental responses can cause variations in the chemical profiles of biogenic carbonates. Therefore, before geochemical analysis is employed for palaeoenvironmental reconstruction, it is necessary to examine modern populations of the proxy species, or related taxa, to understand how geochemical variations are influenced by local environmental conditions. This allows any offsets between the environmental signal and the carbonate geochemistry to be identified, and allows the generation of more quantitative records of environmental change. This session invites presentations on proxy development and validation in biogenic carbonates, including work on marine, freshwater and terrestrial organisms, and on traditional as well as novel geochemical proxies and applications.
If you would like to contribute to this session, please submit your abstract before December 20, 2014: http://convention.jtbcom.co.jp/inqua2015/call_for_abstracts.html
Please also encourage your colleagues and students to submit an abstract.
We hope to see you at INQUA 2015!
Amy Prendergast & Emma Versteegh
Dr. Emma A. A. Versteegh
NASA Jet Propulsion Laboratory
California Institute of Technology
4800 Oak Grove Drive, M/S 306-431
Pasadena CA 91109-8099, USA
818 354 3259 (office)
818 354 8887 (fax)
emma.versteegh at jpl.nasa.gov<mailto:emma.versteegh at jpl.nasa.gov>
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