Dear Colleagues
We invite contributions for the following session at the IGC 2016 in
Cape Town (27 August-3 September 2016).
*****The deadline for abstract submission is January 31 2016****
Best wishes
Mary Ford and Dominique Frizon de la Motte
Session Title: Recent advances in foreland basin systems
Convenors: Mary Ford and Dominique Frizon de la Motte
In external orogenic systems the evolution of the migrating flexural
foreland basin is inextricably linked to that of the adjacent fold and
thrust belt. The distribution of deformation and thus of subsidence in
these systems is strongly influenced by inherited crustal rheology and
structure. Notably, the presence of weak layers, such as salt, enhances
the development of wedge-top basins and complex growth structures. Over
the last 20 years new, high precision dating techniques have led to
major advances in our understanding of the coupling and feedback between
surface, climatic and tectonic processes in orogenic wedges and their
foreland basins. Recognition the relative roles of tectonic processes,
climatic processes and lithology in controlling stratigraphic
architecture of FB is a key challenge. In particular, understanding
response times to tectonic and climatic perturbations in foreland
systems is still a difficult issue. All these advances have major
implications for the interpretation of stratigraphic architecture and
patterns of subsidence in foreland basins at different spatio-temporal
scales.
While classic flexural models for the origin of foreland basins have
stood the test of time, major advances in our understanding of both
lithosphere and mantle dynamics, rheology and structure, coupled with
more powerful modelling tools, have led to new insights into the nature
of loads and the mechanical response of the lithosphere to the
emplacement of these loads. In certain cases, far-field plate dynamics
can also act as a driver of foreland basin subsidence. How can we
recognise the signature of these processes in the foreland basin
stratigraphy, structure and subsidence patterns?
We invite contributions that address any of these issues to provide
new insights into foreland basin systems, using modelling and/or case
studies. We particularly welcome case studies from the African continent
and its margins.
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