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Content archived on 2024-05-14

A biomarker study of the Benguela upending system during the last 300.000 years - implications for the ocean-atmosphere co2 exchange

Objective



Research objectives and content
The coastal upwelling areas, account for an important fraction of the total productivity of the oceans and thus are considered to play a major role in the mechanisms that control the atmosferic CO2 concentrations in the glacial-interglacial time scales. The assessment of the productivity variations associated to these upwellings in the past are complicated by changes in the position and extent of these areas. The objectives of the project are: 1) to investigate changes spatial and temporal in the productivity associated to the Benguela Upwelling System during the last 300.000 ka, and 2) its influence on the distribution of carbon dioxide between the ocean and the atmosphere. New marine sediment cores from the NAUSICAA-IMAGES Project will enable to trace the spatial evolution of the Benguela Upwelling System. The study will focus on both the sedimentary composition and abundance of biomarkers and on isotopic (13C/12C) measures performed in selected organic compounds.
Training content (objective, benefit and expected impact)
The benefits of the project for the applicant are: 1) to adquire analytical skills for the determination of the isotopic ratio (delta13C) in specific organic compounds using irm-GCMS. 2) to develop a research activity under a truly multidisciplinary framework, involving different areas of knowledge (sedimentology, geochemistry and micropaleontology). 3) to improve in the understanding of the spatial and temporal variability of the Benguela System.
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RGI - Research grants (individual fellowships)

Coordinator

UNIVERSITE DE BORDEAUX I
EU contribution
No data
Address
Avenue des Facultés
33405 TALENCE
France

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Total cost

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Participants (1)

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