Dear Colleagues
Contributions (oral and poster) are invited for the following
symposium which will take place at EUG XI, Strasbourg,
France, April 8-12, 2001. This session should be of interest to
a wide variety of earth science disciplines including petrology,
geochemistry, geophysics and geotectonics.
It is hoped that many of the papers will be published in a special
volume after the meeting. A number of speakers may be invited
and papers will also be sought from selected authors who are
unable to attend EUG.
Please note that the abstracst deadline is 1st December 2000.
Please visit the EUG website at http://eost.u-strasbg.fr/EUG/ or
contact one of us for further details.
with best wishes
Stephen Daly, Tim Brewer and Sven-Erik Hjelt
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Symposium G7 - Origin and significance of major boundaries in
the deep crust and continental lithosphere
Convenors: J. Stephen Daly (Dublin), Tim S. Brewer
(Leicester) and Sven-Erik Hjelt (Oulu)
Significant progress has recently been made in understanding the
evolution of the upper continental lithosphere, especially in terms
of surface processes, tectonic burial, exhumation and the
delineation of first order tectonic boundaries - including terrain-
bounding faults and suture zones. In contrast the geometry,
origin and evolution of deep boundaries - e.g. the MOHO, sub-
MOHO upper mantle reflectors and the lithosphere-
asthenosphere boundary (LAB) are less well understood. This
session solicits contributions dealing with tectonic and magmatic
processes affecting the lower crust and continental lithosphere
and geophysical imaging and modelling of the corresponding
structures. The session will draw on recent large-scale
geophysical experiments, and integrated geoscience programmes
such as Europrobe, Lithoprobe and related IGCP projects.
Issues to be addressed include: the role of intraplate magmatism
in annealing major tectonic boundaries and refreshing the
MOHO; critical evaluation of xenolith studies, especially the
relevance of thermobarometric data in defining lower crustal and
mantle depths and thermal structure; and the extent to which
lateral variations in the deep structure reflect the upper crustal
geology and tectonic history.
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J. Stephen Daly
Department of Geology, University College Dublin
Belfield, Dublin 4, Ireland
Telephone: +353-1-716-2327 (office - NB NEW number - 716-2327 after 1st October 2000);
+353-1-298-7551 (home)
Fax: +353-1-283-7733; Telex 32693 UCD EI
email: [log in to unmask]
http://www.ucd.ie/~geology/home.html
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