Objective
Changes in atmospheric CO2 content are an important index of climate changes and are regulated by oceanic circulation and nutrient distribution. Variations in seawater biologically mediated trace elements, such as Cd, can be directly linked to the carbon cycle, and can thus provide information on past climatic variations. The Cd/Ca "nutrient-like" ratio has been used as a proxy of past ocean thermohaline circulation since it has been shown that Cd/Ca ratios can fingerprint distinct water masses. Recent studies have questioned the use of these ratios as a proxy for reconstructing past oceanic productivity, due to a potential fractionation between Cd and PO4 and/or a possible temperature effect. We propose to develop a method for measuring Cd isotope ratios in marine sediments to assess the potential of Cd isotopes as a proxy of past oceanic changes in oceanic biological productivity and/or temperature during the Quaternary.
This novel approach will be achieved by establishing a chemical separation and a measurement protocol of Cd isotopes using a MC-ICP-MS instrument combined with a double spike technique to correct for instrumental mass bias. Cd isotopic measurements will be performed on variable geological materials to evaluate the extent of natural Cd isotopic fractionation. We will then focus on marine sediments to understand the parameters controlling Cd isotope fractionation in the oceans. Time-series of Cd isotopes in selected marine sediment cores will be used to trace past oceanic circulation and biological productivity during the Quaternary and establish the potential of Cd isotopes as a paleoceanographic proxy.
This project meets the objectives of the Specific Program and the Work Program for the Marie Curie Actions, since it falls within the FP6-2003-Global-2 thematic research program, comprises scientific innovation and analytical development, and will provide the applicant both the experience and training required to develop as an independent scientist.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry transition metals
- social sciences economics and business economics production economics productivity
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
MAINZ
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.