Hello all,
Message from Steve Freeman, regarding two (2) industry funded PhD
studentships at Rock Deformation Research. Please reply to him.
>
>*** Please reply to [log in to unmask] ***
>
>Hello to all,
> The Rock Deformation Research Group is offering two industry
>sponsored structurally related PhD projects to start from next
>Summer/Autumn. Could you please bring this notice to the attention of any
>likely candidates in your departments. The projects are being sponsored by
>the Boliden minerals/mining company. Funding should be at a level similar
>to UK NERC funded projects. The projects are;
>
The first PhD is:
>Tectonic evolution and mineralisation in ancient arc systems -
>The Skellefteċ area, Northern Sweden
>
>Supervisors: A. C. Barnicoat, S. R Freeman, R. A. Cliff.
>
> The Skellefteċ belt contains some of the most important base metal
>+ Au deposits in Europe. Mineralisation is mainly as massive sulphides
>which have been strongly deformed and sometimes remobilised subsequent to
>formation. The belt is believed to represent a back-arc system but the
>large-scale tectonic evolution is poorly understood. Much data has been
>collated from operational mines within the belt, but little modern regional
>structural and tectonic synthesis has been undertaken.
>
>This project will utilise a range of data types to establish the overall
>structural evolution of the Skellefteċ belt. Mapping of underground and
>open pit mines to establish the local structural chronologies and
>kinematics will be combined with regional mapping and geophysical
>information to develop a broader picture of the structural setting and
>controls on mineralisation. Key to understanding the tectonic evolution are
>the mineralised intrusives in the belt. Their place in the tectonic history
>may be identified by local cross-cutting relationships but the greater
>precision derived from radiometric dating may be appropriate. Radiometric
>dating of selected material is likely to be desirable, and geochronological
>work could be important for the project.
>
>The project will yield a comprehensive tectonic evolution for the
>Skellefteċ belt with emphasis on the siting and timing of mineralisation.
>This information should allow exploration in the area to proceed with fresh
>ideas and impetus.
>
> The student will get a thorough training in the techniques of field
>geology and structural geology, together with mineralisation, petrology,
>igneous and isotope geochemistry.
>
>
>
>The second PhD is;
>
>
>Fluid migration, fault sealing and lead mineralisation : an example from NW
>Sweden.
>
>Supervisors: R. J. Knipe, A. C. Barnicoat, S. R. Freeman.
>
>Massive lead mineralisation, developed as a result of basin-scale fluid
>flow striping lead from source rocks and transporting it to the
>mineralisation site, is of substantial economic importance. Massive
>mineralisation occurs in permeable lithologies on the immediate margin of
>and within fault zones. Although this general picture is well established
>the detailed relationships between fluid flow and fault zone evolution are
>poorly understood. In places the faults appear to act as conduits for the
>Pb bearing fluid, in other areas they act as baffles, and some cases
>complete fault sealing leads to fluid ponding on one side of the fault. The
>objectives of this project are to use a combination of field data,
>microstructure and geochemistry to assess the detailed distribution of
>conduits and seals during fluid flow and to establish the links between
>fault activity, fault zone evolution, fluid pathways and mineralisation
>processes.
> The Pb deposit at Laisvaal provides a well constrained example for
>the proposed study providing underground exposure and borehole data. The
>deposit lies on the immediate margin of a major fault system which displays
>locally both contractional and extensional geometries.
> The project aims to establish the structural setting of the ore
>deposit from the regional to the local scale and to define the
>relationships between fluid flow, fault development and the distribution of
>mineralisation.
>The project will provide training in structural geology, microstructural
>analysis, geochemistry together with aspects of economic geology.
>
>
>Any interested candidates should either;
>meet myself at TSG/MDSG at St. Andrews,
>send CV's to RDR,
>e-mail me with CV's/questions but paper copies would be preferable..
>
>More information on these projects will be posted with all the other PhD
>projects from the Earth Science dept on our web page.
>
>The RDR address follows,
>
>Cheers,
> Steve..
>
>Dr Stephen Freeman,
>Structural Geologist,
>Rock Deformation Research Group,
>Earth Sciences Dept.,
>Leeds University,
>Leeds LS2 9JT
>Tel: +44 (0) 113 233 1930
>Fax: +44 (0) 113 245 6233
>email: [log in to unmask]
Website: http://www.rdr.leeds.ac.uk
RDR email: [log in to unmask]
RDR is an industrially sponsored research and service unit, part of the
commercial arm of Leeds University. We comprise 25 professional geologists
conducting research and service contracts for the minerals and hydrocarbons
industries.
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Dr. S. J. Jolley
Rock Deformation Research
Earth Sciences
University of Leeds
Leeds LS2 9JT
United Kingdom
Tel: +44 (0)113 233 5208
Fax: +44 (0)113 245 6233
email: [log in to unmask]
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