Objective
This project, in which research teams from Germany, France, Russia, Ukraine and Tajikistan are taking part, aims to improve and deepen understanding of a geological chronometer with growing scientific importance and obtain new geological knowledge on the basis of its application on minerals from various crustal environments. This chronometer is the uranium / fission-xenon method of dating with its advanced variant induced-xenon / fission-xenon dating, the powerful relative of the well-known 40Ar/39Ar step dating technique. Progress will be made co-operatively through developing the analytical trace amount technique by modernising equipment and methodical procedures in order to facilitate very sensititive Xe isotope measurements of high precision and accuracy.
This technique will also be used to evaluate new measurements on minerals where the behaviour of the hosting rocks during evolutionary steps of earth history is well known. Efforts will therefore be focused on minerals (mainly pitchblende, zircons) for which other chemical and isotopic information (above all chronometric data) are already available or will be supplied by the partners of this research project. Owing to the well established qualities of the uranium-lead and the samarium-neodymium methods, results obtained by these chronometers will play an important part in the evaluation of the Xe data. Technical and methodological improvements will be carried out on geological samples of current scientific interest to the partners. They will be taken from high-grade Precambrian metamorphic terrains of Antarctica or the Baltic Shield and from hydrothermal deposits of central Europe. Isotopic ages of higher resolution and significance are envisaged which will complement and expand the information hitherto derived from uranium/lead data.
Improvements to the analytical Xe isotope equipment at the Vernadsky Institute are expected. These improvements will make the instruments analytically more sensitive and less susceptible to everyday hazards, thus making a greater amount of analysis possible. The Xe/Xe work on standard materials and on well selected zircon, as well as on pitchblende samples where independently determined age data exists, will demonstrate how closely the results of the various age determinations match. Evidence will be gained as to whether Xe/Xe dates of geological disturbed pitchblends are more reliable than U-Pb data.
On the basis of the intercomparisons and intercalibrations, ideas will be developed by which the extraordinary Xe retentivity of zircon may be explained. The new age determinations, performed in Moscow, Rennes and Heidelberg, will be contributions to the geological history of the areas and structures from where the samples originate. Altogether a unique contribution to methodology and applicability of isotope geochronometry will have been made.
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.
This project has not yet been classified with EuroSciVoc.
Be the first one to suggest relevant scientific fields and help us improve our classification service
You need to log in or register to use this function
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.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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.
Data not available
Coordinator
69120 Heidelberg
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.