Objective
Alteration of ocean crust is a fundamental on-going geological process. High-temperature alteration of the ocean crust occurs at the ridge, while diffusive, low temperature alteration is present off-ridge. Both alteration processes produce secondary minerals and change the primary chemical and isotopic signal of the oceanic crust. These signals can be brought into the mantle as altered oceanic crust enters a subduction zone and produces mantle inhomogeneities. As molybdenum is low in abundance in the mantle, but high in abundance in seawater with a distinct isotopic signal from each other, it is a promising element to study these processes. Prior to study deep cycling of molybdenum via ocean island basalts, detailed understanding of the behavior of molybdenum during alteration is needed. In this framework, we propose a study to identify the major molybdenum-bearing phase as well as the processes influencing the molybdenum isotope signal of the altered oceanic crust. Two cross-sections through the oceanic crust will be studied for this purpose, ODP Site 1256 and Macquarie Island (14 Ma and 7 Ma old, respectively). In-situ molybdenum concentrations and whole rock molybdenum isotope measurements are planned to understand on- and off-ridge alteration in the oceanic plate. This research will be groundbreaking, using molybdenum as a novel tracer to better constrain the behavior of on-/off-ridge alterations and to quantify the Mo-isotopic composition of the oceanic crust potentially entering the subduction zone.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences earth and related environmental sciences geology seismology plate tectonics
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Programme(s)
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2009-IEF
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Funding Scheme
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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
BS8 1QU Bristol
United Kingdom
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.