FIRST CIRCULAR
EXHUMATION OF METAMORPHIC TERRANES
UNIVERSITY OF RENNES
31 August - 2 September 1999
This conference is sponsored by the Metamorphic Studies Group, a special
interest group affiliated to both the Mineralogical Society of Great Britain
and the Geological Society of London.
The aim of this meeting is to discuss the processes by which metamorphic
terranes are unroofed, the relative importance of these processes in
different types of metamorphic terrane, and the rates at which these
processes operate. The meeting is designed to bring together petrologists,
structural geologists, geochronologists, clastic sedimentologists,
geophysicists, theoretical modellers and geomorphologists in a multi-
disciplinary attack on the problem.
The meeting is being convened by:
Dr. Michel Ballevre Geosciences Rennes,
Universite de Rennes I,
F-35042 Rennes Cedex,
France.
tel: (+33) 02 99 28 60 81
fax: (+33) 02 99 28 26 02
e-mail: [log in to unmask]
Dr. Simon Cuthbert Department of Civil, Structural & Environmental
Engineering,
University of Paisley,
Paisley G44 3UL, UK.
tel: (+44) 141 848 3263
fax: (+44) 141 848 3275
e-mail: [log in to unmask]
Dr. Giles T.R. Droop Department of Earth Sciences,
University of Manchester,
Oxford Road,
Manchester M13 9PL, UK.
tel: (+44) 161 275 3809
fax: (+44) 161 275 3947
e-mail: [log in to unmask]
PLEASE FORWARD THIS CIRCULAR TO ANY OF YOUR COLLEAGUES WHO YOU THINK MAY NOT
BE AWARE OF THE MEETING, AND WHO MAY WISH TO ATTEND
Scope of the meeting:-
A number of key topics have been identified which will be addressed during
the meeting, possibly forming the basis of discrete sessions. These include:
Metamorphic records of exhumation: Decompressive P-T paths;
Diffusion in minerals: the "geospeedometry" approach.
Exhumation of ultra-high-pressure rocks.
Kinematics of tectonic exhumation: the macro-, meso- and micro-
structural record.
Exhumation rates constrained by high-resolution geochronology.
Sedimentological records of unroofing in foreland and intramontane
basins.
Present-day erosion rates in mountain belts.
Thermal / mechanical models of exhumation.
Exhumation of metamorphic terranes in contrasting geo-tectonic
settings.
These topics will be addressed in oral and poster sessions.
The following keynote speakers have been approached and have agreed to talk
at the meeting:
J.P. Platt (UCL, London)
V. Sautter (MNHN, Paris)
C. Passchier (Mainz)
J.R. Wijbrans (Amsterdam)
B. Bluck (Glasgow)
D.W. Burbank (Penn. State)
A. Chemenda (Nice-Sophia)
A. Hynes (McGill)
Language:-
The official language of the meeting will be english. All talks must be
given in english. Abstracts and posters must also be in english.
Venue:-
The meeting will be held at the University of Rennes campus, which is located
ca. 8 km east of Rennes city centre. Lectures will be held in the Louis
Antoine Lecture Theatre in No. 2 building. Poster sessions will be held in
the same building. Two slide projectors and an overhead projector will
be available for use in the lecture theatre.
Accommodation:-
Accommodation is available on campus in the form of rooms in student halls of
residence. Hotel accommodation is also available close to the campus and in
the city centre.
Meals:-
For delegates in student accommodation, breakfast will be available at the
University Restaurant, but for delegates in hotels breakfast will be provided
by the hotel. Lunch will be at the University Restaurant. Evening meals
will also be obtainable there, but there are also many good restaurants in
the city centre for those who wish to forage further afield. The Conference
Dinner will be on the evening of 1st September. Tea/coffee will be included
in the registration fee. Breakfast and lunch will be included in the
accommodation and registration costs, but, with the exception of the
Conference Dinner, evening meals will not.
Registration:-
The registration fee, covering all conference materials and tea/coffee, has
not yet been fixed. There will be a reduced registration fee for students
and for members of the Mineralogical Society and fellows of the Geological
Society. A registration form will be included with the Second Circular which
will be sent out early in 1999. The deadline for registration is 1 May 1999.
There will be a extra late-registration charge for registrations received
after this date.
Abstract submission:-
Intending contributors may submit up to two abstracts, of which no more than
one is for oral presentation. Abstracts should normally be no more than one
page long, but abstracts for keynote talks may be up to two pages long.
Abstracts should be submitted both as hard copy and by e-mail to Simon
Cuthbert (addresses above). The abstract submission deadline is 1 February
1999.
Abstracts should be written in english and should be arranged in the
following lay-out:-
Page size: A4 (297 x 210 mm).
Margins: left: 3cm right: 2cm Top & bottom: 3cm.
Title: Times New Roman 12pt bold capitals, centred, single-spaced.
One line blank.
Authors' surnames and initials: Times New Roman 12pt bold, centred,
single-spaced.
One line blank.
Authors' postal and e-mail addressess (identified by superscripts
after names): Times New Roman 12pt italic, left-justified,
single-spaced.
One line blank.
Main text of abstract: Times New Roman 12pt, single-spaced;
paragraphs not indented but separated by blank lines.
Each abstract should be submitted electronically both in MS-Word-for-Windows
format (preferably as a Word 6.0 / '95 file, UUencoded), and as an ASCII
plain text file, to [log in to unmask], specifying "Rennes
Meeting" followed by author surnames in the "subject" heading.
Publication:-
We are currently negotiating with the Mineralogical Society for publication
of a conference volume as part of the Min. Soc. book series. Both keynote
and contributed papers will be published. The deadline for submission of
papers for this volume will be 1 November 1999, although we would encourage
submission at the time of the meeting. Further details will appear in the
Second Circular.
Field Trip:-
The meeting will be followed by a 3- to 4-day field trip to review the
metamorphic evolution of the Variscan Belt of southern Brittany. Attention
will be focussed mainly on the high-pressure rocks, including the
blueschist-facies rocks of the Ile de Groix, the eclogite-facies rocks of the
Champtoceux Nappe and the Vendee, and possibly also the transitional
granulite/eclogite-facies rocks in the Baie d'Audierne. Some key structures
for constraining exhumation mechanisms of high-P rocks (e.g. synkinematic
leucogranites with C-S structures in extensional detachments) will be shown.
As a counterpart to the high-pressure rocks, the classic migmatites of the
Morbihan area will also be visited. The field trip will be led by Michel
Ballevre, Denis Gapais and Gaston Godard. A detailed itinerary will appear
with the Second Circular.
Travelling to Rennes:-
Flying to Rennes is possible via Paris, though may involve changing airports
from Charles de Gaulle to Orly.
Travelling to Rennes by train from Paris is very easy and convenient; the
high-speed train (TGV) takes only two hours from Paris (Gare de Montparnasse)
and leaves almost every hour. There are also a few TGV from CdG airport.
By car, Rennes is an easy 350km from Paris, mostly along motorway. Delegates
travelling from the UK by car can cross the English Channel by ferry from
Portsmouth to St Malo. From St Malo to Rennes is only 70km by road.
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