Collaborative research: Calibration of deep-sea coral paleoproxies for nutrients, carbonate ion, and temperature

Lead PI: Reinhard Kozdon

Unit Affiliation: Biology and Paleo Environment, Lamont-Doherty Earth Observatory (LDEO)

January 2019 - December 2021
Inactive
Global
Project Type: Research

DESCRIPTION: Long-term laboratory cultures of the deep-sea coral Desmophyllum dianthus will be used to validate and refine the quantitative calibration of paleo-proxies for absolute (not relative) nutrient and carbonate ion concentrations, to use new analytical approaches to develop the paleo-temperature proxy Mg/Li, and compare laboratory culture-derived proxy calibrations to field calibrations derived from a large collection of live-collected modern specimens in an archived and fully documented collection from known locations in well-characterized waters surrounding New Zealand. The resulting refined calibrations will allow future reconstructions of these critical variables for the last Glacial period to the Holocene using fossil D. dianthus collections from New Zealand subantarctic waters as well as other critical global ocean water masses where fossil D. dianthus is found

OUTCOMES:

SPONSOR:

National Science Foundation (NSF)

RESEARCH TEAM:

Rob Sherrell

WEBSITE:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=1841970&HistoricalAwards=false

PUBLICATIONS:

Martinez-Dios et al. 2018: Ground-truthing Paleo-Proxy Calibrations in Desmophyllum dianthus Deep-sea Corals Using Long-term Aquaria Cultures. AGU Fall Meeting 2018, Washington D.C. http://adsabs.harvard.edu/abs/2018AGUFMPP51F1188M

KEYWORDS

glacial-interglacial cycles deep sea corals paleorecords dating life-culturing ocean circulation

THEMES

Modeling and Adapting to Future Climate

MULTIMEDIA

https://sites.google.com/view/rkozdon