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EFOX

The formation and evolution of monomineralic oxide layers in mafic intrusions

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EC-Contrib. €

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Partnership

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Project "EFOX" data sheet

The following table provides information about the project.

Coordinator
THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE 

Organization address
address: TRINITY LANE THE OLD SCHOOLS
city: CAMBRIDGE
postcode: CB2 1TN
website: www.cam.ac.uk

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 United Kingdom [UK]
 Total cost 183˙454 €
 EC max contribution 183˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-04-01   to  2018-11-11

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE UK (CAMBRIDGE) coordinator 183˙454.00

Map

 Project objective

The world’s greatest resources of platinum-group elements, Cr and V are found in almost monomineralic, metre-scale, layers of Cr- and Fe-Ti oxides that formed during solidification of large bodies of basaltic magma trapped in the Earth’s crust (i.e. mafic layered intrusions). The largest and most economically important oxide layers are found in a vast layered intrusion in South Africa, known as the Bushveld Complex. The critical economic importance of these oxide layers means that they have been the subject of intense study for decades, but most of this work has been focussed on their composition. We have almost no understanding of the physical processes that result in the formation of layers dominated by a single mineral, especially given how very dense these oxides are compared to the other minerals crystallising from the magma. We also know nothing about the extent to which their microstructure and composition may change once the layers have been formed. Developing an understanding of how these layers form and evolve will provide a robust scientific framework to support further economic exploitation of these mineral resources. I propose a research program that is aimed at understanding the physical processes controlling deposition, post-accumulation compaction and recrystallization of layers of dense oxide particles. The approach involves a combination of detailed microstructural and geochemical profiles across individual oxide layers from the Bushveld intrusion to understand crystal sorting and compaction in layers deposited on the magma chamber floor. The results of our study will provide an understanding of the physics of the formation and evolution of dense oxide layers, providing much-needed constraints on existing models, based primarily on geochemical observations, of these economically important features.

 Publications

year authors and title journal last update
List of publications.
2018 Z. Vukmanovic, M.L. Fiorentini, S.M. Reddy, B. Godel
Microstructural constraints on magma emplacement and sulfide transport mechanisms
published pages: 73-90, ISSN: 1941-8264, DOI: 10.1130/l743.1
Lithosphere 11/1 2019-09-02
2018 Z. Vukmanovic, M. B. Holness, K. Monks, J. C. Ø. Andersen
The Skaergaard trough layering: sedimentation in a convecting magma chamber
published pages: , ISSN: 0010-7999, DOI: 10.1007/s00410-018-1466-1
Contributions to Mineralogy and Petrology 173/5 2019-09-02
2017 Robert Krakow, Robbie J. Bennett, Duncan N. Johnstone, Zoja Vukmanovic, Wilberth Solano-Alvarez, Steven J. Lainé, Joshua F. Einsle, Paul A. Midgley, Catherine M. F. Rae, Ralf Hielscher
On three-dimensional misorientation spaces
published pages: 20170274, ISSN: 1364-5021, DOI: 10.1098/rspa.2017.0274
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Science 473/2206 2019-09-02
2017 M. B. Holness, Z. Vukmanovic, E. Mariani
Assessing the Role of Compaction in the Formation of Adcumulates: a Microstructural Perspective
published pages: 643-673, ISSN: 0022-3530, DOI: 10.1093/petrology/egx037
Journal of Petrology 58/4 2019-09-02

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