Dear colleagues,
This is a kind reminder for a general call-for-papers for a Special
Issue in the Journal of Geodynamics entitled : Fluids in crustal
deformation : fluid flow, fluid-rock interactions, rheology, melting
and resources.
Following a successful session in the 2015 EGU (European Union of
Geosciences) Vienna meeting, we aim at producing a thematic issue on
this topic in the Journal of Geodynamics. We welcome papers either
from participants to the session or from interested people who were
unable to attend the meeting.
Description:
The presence (or absence) of fluids and their introduction or
redistribution by localized or more pervasive flow has a first-order
effect on the physical, chemical and mechanical evolution of the
continental crust. Fluids interact with rocks when they are deformed
and/or metamorphosed and then possibly exhumed, and enhance mineral
reactions and partial melting at depth. Fluids are also major
contributors to mineralization and ore deposition. Fracture systems
and fault zones are preferred pathways for fluids, and in turn
physical and chemical interactions between fluid flow and tectonic
structures strongly influence the mechanical behavior of the crust at
different scales in space and time. Fluids exert a strong effect on
crustal rock strength. They influence dislocation creep and
recrystallization of rock-forming minerals and allow pressure solution
and chemical reactions to occur, thus stiffening the rock by
depositing cements and/or weakening it through development of
low-strength hydrated mineral phases, such as phyllosilicates.
Increased pore fluid pressure reduces the fracture strength of rocks
and can promote the interplay between creep, fracture and (localized)
fluid flow.
During orogenic evolution, large amounts of fluids are released in
rocks by successive metamorphic dehydration reactions occurring during
burial. This source of fluids, especially water, has crucial effects
on the scale of mass transfer processes and fluid?rock interactions,
but also on the crustal deformation mechanisms, rock rheology and
partial melting at depth. Alternatively crustal rock may deform or
melt under dry conditions.
This special volume aims to provide a forum for summarizing our
knowledge of fluid-rock-tectonics interactions, of fluid sources and
pathways in the continental crust and of the extent to which fluids
influence, and in turn are influenced by, rock composition and
physical/rheological properties and structures (folds, faults and
shear zones) at different crustal levels.
We welcome contributions on the role and behavior of fracture
systems and fault/shear zones during fluid circulation in the
continental crust, on regional case studies (e.g.,
fluid-rock-tectonics interactions in compressional, strike-slip or
extensional settings) as well as on more technical aspects (recent
advances in methods and techniques for fluid characterization and
fluid pathway reconstruction, fluid-rock interaction modelling,
geochemical characterization, mechanics, and thermal modelling).
We definitely encourage contributions dealing with various types of
fluids (magmatic, hydrothermal and/or basinal fluids), as well as with
rock alteration related to fluid flow, mineralizations and formation
of ore bodies.
IMPORTANT : Deadline for committing to contribute and for submitting
provisional abstracts : May 1st, 2015
Deadline for submitting manuscripts : October 31st, 2015
Contact : [log in to unmask]
All the best
Olivier, on behalf of Yann (Rolland) and Neil (Mancktelow)
Prof. Dr Olivier Lacombe
Université Pierre et Marie Curie
Institut des Sciences de la Terre de Paris - ISTeP
UMR 7193 UPMC et CNRS
Couloir 46-45 2ème étage
Boîte 129; 4, Place Jussieu
75252 PARIS Cedex 05, France
Tél : 33 1 44 27 71 80
e-mail : [log in to unmask]
http://www.istep.upmc.fr/
http://merco220.free.fr
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