Opendata, web and dolomites


Stable Chromium Isotopes as a Productivity Tracer

Total Cost €


EC-Contrib. €






 SCrIPT project word cloud

Explore the words cloud of the SCrIPT project. It provides you a very rough idea of what is the project "SCrIPT" about.

slower    dioxide    proxy    atmospheric    substantial    culture    isotopes    investigations    mechanisms    fractionation    atmosphere    explore    pump    redox    oscillations    significance    constrained    geological    dominant    climate    buffering    history    elucidating    column    interior    isotopic    observations    point    despite    stable    overarching    refining    glacial    strength    appraise    governing    mediated    earth    capacity    interglacial    mechanism    chromium    exchange    calibration    oceanic    ocean    biological    experiments    driver    anthropogenic    multidisciplinary    global    evolution    sedimentary    remineralization    cycle    productivity    trace    variability    sensitivities    pivotal    temporal    potentially    co2    toward    spatial    phytoplankton    marine    subtle    biogeochemical    gathered    bcp    water    ecosystem    cr    variations    export    declining    reconstruct    poorly    organic    regulating    climatic    tended    subsequently    framework    tracer    oxygen    thoroughly    nonetheless    carbon    concentrations    modulating   

Project "SCrIPT" data sheet

The following table provides information about the project.


Organization address
city: BERN
postcode: 3012

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 Switzerland [CH]
 Total cost 1˙997˙625 €
 EC max contribution 1˙997˙625 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-COG
 Funding Scheme ERC-COG
 Starting year 2019
 Duration (year-month-day) from 2019-05-01   to  2024-04-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAET BERN CH (BERN) coordinator 1˙997˙625.00


 Project objective

The overall concept of this proposal is to investigate the main biogeochemical processes modulating spatial and temporal changes in marine export productivity, and assess their role in regulating atmospheric carbon dioxide (CO2) concentrations, both under present conditions and in the geological past. The exchange of CO2 between the atmosphere and ocean interior mediated by the oceanic ecosystem is a pivotal mechanism modulating the global carbon cycle, and thus, a substantial driver of the Earth’s climatic evolution.

The overarching objective of this research proposal is to develop a novel proxy to trace changes in the global strength of the marine biological carbon pump (BCP) based on stable Chromium (Cr) isotopes. Despite its significance for the global carbon cycle, the BCP is still poorly constrained. This project will explore a tracer that has recently been developed to investigate the rise of atmospheric oxygen in the early history of the Earth and develop it thoroughly through a comprehensive, multidisciplinary calibration program and apply it to the much more subtle redox variations associated with organic matter remineralization in the ocean. The proposed approach includes phytoplankton culture experiments, water-column investigations and sedimentary analysis and will aim at elucidating the mechanisms governing the reduction of Cr and its associated isotopic fractionation. The proxy will subsequently be used to reconstruct export production variability in the past and assess its role in modulating glacial/interglacial climate oscillations. These past changes tended to be much slower than the current, anthropogenic change. Nonetheless, they can help to appraise sensitivities and point toward potentially dominant mechanisms of change. The observations gathered within the framework of this research program will enable refining the evolution of the marine carbon cycle and the rapidly declining buffering capacity of the ocean.

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