>Dear all,
>This is the first anouncement of a Tectonic Studies Group meeting on shear
>zones to be held in March 2002. Information is available in the March issue
>of Geoscientist (page 25) and also at a Web site
>
>http//www.st-and.ac.uk/~www_sgg/conferences.html
>
>Further details and contact information are given below.
>
>
>TRANSPORT AND FLOW PROCESSES WITHIN SHEAR ZONES.
>
>TSG MEETING, BURLINGTON HOUSE, PICCADILLY, LONDON
>18th-19th March 2002
>
>
>POST-CONFERENCE FIELDTRIP TO SHEAR ZONES IN THE SCOTTISH HIGHLANDS
>20th-24th March 2002
>
>
>Shear zones are approximately tabular zones of concentrated deformation and
>flow that accommodate movement of adjacent, relatively undeformed rock
>units in the deeper parts of the Earth's crust and mantle. They are
>important examples of the heterogeneous nature of deformation in natural
>rocks and also act as fundamental pathways for the advective transport of
>mineralising fluids, magmas and heat in the lithosphere. The importance of
>shear zones and their products, recognised since the 19th century, have
>been observed on a variety of scales from microstructural to regional, with
>recent work attempting for the first time to incorporate their development
>into numerical models of lithosphere-scale deformation.
>
>This conference will bring together Earth Scientists who apply a diverse
>range of techniques and methodologies to better understand shear zone
>processes and evolution. It is hoped that the meeting will provide an
>up-to-date assessment of our current understanding of shear zones and that
>it will act as a forum for the development of future interdisciplinary
>approaches and collaboration.
>
>IT IS INTENDED TO PUBLISH A COLLECTION OF PAPERS DERIVED FROM THE
>CONFERENCE, POSSIBLY IN THE FORM OF A SPECIAL PUBLICATION OF A SPECIAL
>PUBLICATION OF THE GEOLOGICAL SOCIETY. The deadline for the submission of
>papers will be at the meeting (19th March 2002) in order to allow rapid
>publication. Contributions incorporating and/or combining laboratory
>analytical methods, field studies and dynamic modelling of shear zones are
>welcome.
>
>Topics which may be covered in special themed sessions include:
>
>SHEAR ZONES IN THE LITHOSPHERE:
>Attributes and processes in mantle shear zones; crust-mantle linkages;
>remote-sensing of deep shear zones; spatial and temporal controls of shear
>zone reactivation; deformation partitioning and localisation; scaling
>attributes of shear zones.
>
>FLOW PATTERNS IN NATURAL SHEAR ZONES:
>The geometric and kinematic characterisitics and evolution of shear zones;
>vorticity and spin; modelling strain partitioning and localisation; fabric
>analyses.
>
>GRAIN SCALE PROCESSES OF SHEAR ZONES:
>Micro-rheology - deformation mechanisms and regimes; recognising diffusive
>creep in shear zones; chemical, strain and energy partitioning processes in
>polymineralic rocks; modelling flow and grain-scale deformation mechanisms;
>geochemical analysis.
>
>ADVECTIVE TRANSPORT PROCESSES:
>Deformation and metamorphism/melting feedback mechanisms; fluid sources and
>migation paths, mechanisms and pathways of mineralisation; magma transport
>and rheology; heat budget of shear zones.
>
>QUANTITATIVE ANALYSIS AND MODELLING OF SHEAR ZONES:
>Application of new analytical methods; geochronology of shear zones,
>analogue modelling studies; numerical modelling studies; integration of
>modelling work with studies of natural shear zones.
>
>
>POST-CONFERENCE FIELDTRIP TO SHEAR ZONES IN THE SCOTTISH HIGHLANDS
>20th - 24th March 2002
>
>It is intended to run a post-conference fieldtrip to spectacularly exposed
>shear zone localities in the Scottish Highlands where ongoing studies are
>currently shedding new light on shear zone attributes and processes across
>a broad range of crustal depths and timescales. We shall visit some classic
>examples of shear zones developed within the Precambrian Lewisian Complex
>(Gairloch, Canisp, Laxford), the Caledonian Moine Thrust Zone mylonites
>(Faraid Head, Eriboll) and shear zones developed within the internal Moine
>Nappe (Eriboll to Bettyhill).
>Costs will be kept to a minimum with hostel-based accommodation + self
>catering OR bar-meals.
>
>CONVENORS:
>Ian Alsop, Crustal Geodynamics Group, School of Geography & Geosciences,
>University of St.Andrews, Fife, Scotland, KY16 9AL UK.
>(e-mail: [log in to unmask])
>
>Ken McCaffrey & Bob Holdsworth, Reactivation Research Group, Dept of Geological
>Sciences, University of Durham, Durham DH1 3LE, UK
>(e-mail: [log in to unmask], [log in to unmask])
>
>Martin Hand, Geology & Geophysics, University of Adelaide, Adelaide SA
>5005, Australia (e-mail: [log in to unmask])
>
>Dr. Ian Alsop
>Lecturer in Structural Geology & Tectonics,
>Crustal Geodynamics Group,
>School of Geography & Geosciences,
>University of St. Andrews,
>St. Andrews, Fife, KY16 9AL UK.
>Tel. (01334) 46 3937
>FAX (01334 46 3849
>e-mail [log in to unmask]
>
>
>Dr. Ian Alsop
>Lecturer in Structural Geology & Tectonics,
>Crustal Geodynamics Group,
>School of Geography & Geosciences,
>University of St. Andrews,
>St. Andrews, Fife, KY16 9AL UK.
>Tel. (01334) 46 3937
>FAX (01334 46 3849
>e-mail [log in to unmask]

Yours sincerely
Grahame

Grahame Oliver
School of Geography & Geosciences, Irvine Building, North Street,
University of St Andrews, St Andrews, Fife, KY16 9AL, Scotland
Ph (-44)1334463938, Fax (-44)1334463849, e-mail [log in to unmask]
http://www.st-and.ac.uk/~www_sgg/ggframeset.htm