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The uralide orogen: a key to understanding collisional orogenesis


Understanding orogeny requires comprehensive integrated studies of the whole lithosphere. Geophysical signatures in the crust and upper mantle Network. The first is that all partners involved are based at institutions must be related to surface geology and understood in terms of tectonic with state-of-the-art technology and the partners themselves have well documented research records; thus, the post-Docs are guaranteed a first evolution. The URO network participants are involved in a comprehensive class continued education in their own specialities. Just as important is tectonic analysis of the Uralide Orogen that will provide the basis for a new understanding of the orogen's structure and tectonic evolution and new the second factor, the training through interaction and integration with insights into the pre-Mesozoic plate tectonic processes that led to the other disciplines, teaching the young researchers to understand the assembly of Pangea. URO network is unique in that a wide range of significance of their specialisations for interpreting lithosphere evolution in general and orogen dynamics in particular. EUROPROBE's techniques, geological, geochemical and geophysical are applied, in an integrated and focused fashion, to the interpretation of orogen dynamics. interdisciplinary workshops are already paving the way for this aspect of the training. It should also be recognised that the young researchers are The different data sets refer to different features of the orogenic evolution. Geophysical and petrophysical data describe the current going to be working with an exceptional database.
distribution of volumes of rock masses in the crust and upper mantle. Reflection seismic images, structural geology and information on ophiolitic emplacement provide pathways along which this masses were in motion and the time markers when this occurred. Data on metamorphism and magmatism allow insight into the thermal evolution during the orogenic process. Reconstruction of the evolution of the orogen requires an integrated approach because, in isolation, the data sets of each network sub-project provide only partial solutions.
Participants in the URO network are already active in EUROPROBE's Urals Project. As part of this project, deep seismic profiling is being carried out in 1995 (the 500km long URSEIS seismic profile) and 1996. These experiments are essential for an improved understanding of the Uralide crustal architecture, the crustal root, the upper mantle structure and also for understanding the reasons for the on-going uplift.

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S/N,Lluis SolT Sabaris S/N

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