Opendata, web and dolomites


Climate change across Cenozoic cooling steps reconstructed with clumped isotope thermometry

Total Cost €


EC-Contrib. €






Project "C4T" data sheet

The following table provides information about the project.


Organization address
address: MUSEPLASSEN 1
city: BERGEN
postcode: 5020

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Norway [NO]
 Project website
 Total cost 1˙877˙209 €
 EC max contribution 1˙877˙209 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-08-01   to  2021-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITETET I BERGEN NO (BERGEN) coordinator 1˙877˙209.00


 Project objective

The Earth's climate system contains a highly complex interplay of numerous components, such as atmospheric greenhouse gases, ice sheets, and ocean circulation. Due to nonlinearities and feedbacks, changes to the system can result in rapid transitions to radically different climate states. In light of rising greenhouse gas levels there is an urgent need to better understand climate at such tipping points. Reconstructions of profound climate changes in the past provide crucial insight into our climate system and help to predict future changes. However, all proxies we use to reconstruct past climate depend on assumptions that are in addition increasingly uncertain back in time. A new kind of temperature proxy, the carbonate ‘clumped isotope’ thermometer, has great potential to overcome these obstacles. The proxy relies on thermodynamic principles, taking advantage of the temperature-dependence of the binding strength between different isotopes of carbon and oxygen, which makes it independent of other variables. Yet, widespread application of this technique in paleoceanography is currently prevented by the required large sample amounts, which are difficult to obtain from ocean sediments. If applied to the minute carbonate shells preserved in the sediments, this proxy would allow robust reconstructions of past temperatures in the surface and deep ocean, as well as global ice volume, far back in time. Here I propose to considerably decrease sample amount requirements of clumped isotope thermometry, building on recent successful modifications of the method and ideas for further analytical improvements. This will enable my group and me to thoroughly ground-truth the proxy for application in paleoceanography and for the first time apply it to aspects of past climate change across major climate transitions in the past, where clumped isotope thermometry can immediately contribute to solving long-standing first-order questions and allow for major progress in the field.


year authors and title journal last update
List of publications.
2020 N. Meinicke, S.L. Ho, B. Hannisdal, D. Nürnberg, A. Tripati, R. Schiebel, A.N. Meckler
A robust calibration of the clumped isotopes to temperature relationship for foraminifers
published pages: 160-183, ISSN: 0016-7037, DOI: 10.1016/j.gca.2019.11.022
Geochimica et Cosmochimica Acta 270 2020-02-13
2018 Bernasconi, Stefano M.; Müller, Inigo A.; Bergmann, Kristin D.; Breitenbach, Sebastian F. M.; Fernandez, Alvaro; Hodell, David A.; Jaggi, Madalina; Meckler, Anna Nele; Millan, Isabel; Ziegler, Martin
Reducing Uncertainties in Carbonate Clumped Isotope Analysis Through Consistent Carbonate-Based Standardization.
published pages: , ISSN: 1525-2027, DOI: 10.17863/CAM.30392
Geochemistry, Geophysics, Geosystems 1 2020-02-13
2019 Alison Piasecki, Stefano M. Bernasconi, Anna‐Lena Grauel, Bjarte Hannisdal, Sze Ling Ho, Thomas J. Leutert, Thomas M. Marchitto, Niklas Meinicke, Amandine Tisserand, Nele Meckler
Application of Clumped Isotope Thermometry to Benthic Foraminifera
published pages: 2082-2090, ISSN: 1525-2027, DOI: 10.1029/2018gc007961
Geochemistry, Geophysics, Geosystems 20/4 2019-09-02
2018 Stefano M. Bernasconi, Inigo A. Müller, Kristin D. Bergmann, Sebastian F. M. Breitenbach, Alvaro Fernandez, David A. Hodell, Madalina Jaggi, Anna Nele Meckler, Isabel Millan, Martin Ziegler
Reducing Uncertainties in Carbonate Clumped Isotope Analysis Through Consistent Carbonate-Based Standardization
published pages: 2895-2914, ISSN: 1525-2027, DOI: 10.1029/2017gc007385
Geochemistry, Geophysics, Geosystems 19/9 2019-09-02
2019 Thomas J. Leutert, Philip F. Sexton, Aradhna Tripati, Alison Piasecki, Sze Ling Ho, A. Nele Meckler
Sensitivity of clumped isotope temperatures in fossil benthic and planktic foraminifera to diagenetic alteration
published pages: 354-372, ISSN: 0016-7037, DOI: 10.1016/j.gca.2019.05.005
Geochimica et Cosmochimica Acta 257 2019-09-02

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