Building orogens – from top to bottom, from field to models
Co-organized by GD4
Convener:
Olivier Lacombe
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Co-conveners:
Christoph von Hagke,
Ícaro Dias da Silva,
Esther Izquierdo Llavall,
Carmen Maria Aguilar Gil,
Giulio Casini,
Fabrizio Cocco
Orals
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Tue, 29 Apr, 14:00–18:00 (CEST) Room G2
Posters on site
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Attendance Tue, 29 Apr, 10:45–12:30 (CEST) | Display Tue, 29 Apr, 08:30–12:30 Hall X2
The reliable appraisal of the diversity of geomorphic, structural, magmatic, metamorphic and sedimentary processes at work during orogeny as well as the 3D-4D conceptual and numerical modeling of the evolution of orogens require a multisource approach encompassing field geology, geomorphology, geophysics, petrology and geochemistry as well as advanced laboratory techniques. In order to constrain the timing, sequence, duration, rates of strain localization in the crust and orogenic growth, determining the age and longevity of structures - folds and thrusts in fold-and-thrust belts and foreland basins and ductile shear zones in the deeper crust - is key. Adding to the petrochronological toolbox applied to metamorphic minerals from the ductile realm, recent advances in K–Ar illite and U–Pb calcite geochronology applied to fault zones and mesoscale brittle structures have allowed for deeper insights into the upper crust mechanics.
This session aims at bridging the gap between spatial - from shallow depth to lithospheric scale- and temporal -short-term vs long-term- scales for a better understanding of mountain building and to provide a forum for all disciplines concerned with orogenic wedges to meet and discuss their views. We welcome contributions reporting topical works on mountain belts including seismology, rheology and mechanics, structural geology, dating deformation, thermochronology, geomorphology, thermicity or fluid rock-interactions. We encourage integrated studies highlighting the respective role of plate tectonics, crust-mantle interactions and surface processes in shaping the architecture of the continental crust. Analogue or numerical modeling work as well as regional case studies are welcome. Furthermore, applied studies aiming at linking structure development and crustal dynamics with hydrogeology and generation of carbon-free energy resources such as geothermal energy or natural H2 are also encouraged.
Orals: Tue, 29 Apr | Room G2
The oral presentations are given in a hybrid format supported by a Zoom meeting featuring on-site and virtual presentations. The button to access the Zoom meeting appears just before the time block starts.
Chairpersons: Esther Izquierdo Llavall, Giulio Casini, Christoph von Hagke
Geometry, kinematics, timing of deformation and resources in fold-and-thrust belts
14:00–14:05
Introduction
14:05–14:25
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EGU25-6799
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ECS
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solicited
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On-site presentation
14:25–14:35
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EGU25-3856
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On-site presentation
14:35–14:45
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EGU25-10657
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On-site presentation
14:45–14:55
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EGU25-15954
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ECS
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On-site presentation
14:55–15:05
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EGU25-14170
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ECS
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On-site presentation
15:05–15:15
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EGU25-20909
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On-site presentation
15:15–15:25
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EGU25-20196
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On-site presentation
15:25–15:35
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EGU25-1638
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On-site presentation
15:35–15:45
Discussion
Coffee break
Chairpersons: Carmen Maria Aguilar Gil, Fabrizio Cocco, Ícaro Dias da Silva
Tectono-thermal evolution of orogens and the orogenic cycle
16:15–16:20
Introduction
16:20–16:40
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EGU25-3341
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solicited
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On-site presentation
16:40–16:50
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EGU25-16632
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ECS
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On-site presentation
16:50–17:00
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EGU25-3615
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ECS
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On-site presentation
17:00–17:10
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EGU25-10300
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On-site presentation
17:10–17:20
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EGU25-7466
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On-site presentation
17:20–17:30
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EGU25-8647
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ECS
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On-site presentation
17:30–17:40
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EGU25-53
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ECS
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Virtual presentation
17:40–17:50
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EGU25-20261
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On-site presentation
17:50–18:00
Discussion
Posters on site: Tue, 29 Apr, 10:45–12:30 | Hall X2
The posters scheduled for on-site presentation are only visible in the poster hall in Vienna. If authors uploaded their presentation files, these files are linked from the abstracts below.
Chairpersons: Esther Izquierdo Llavall, Carmen Maria Aguilar Gil, Ícaro Dias da Silva
Geometry, kinematics, timing of deformation and resources in fold-and-thrust belts
X2.25
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EGU25-19760
Late Devonian to Carboniferous compression recorded in the Old Red Sandstone in the Orkneys, Scotland – A foreland expression of the Variscan Orogeny?
(withdrawn)
Modeling orogens, from deep to shallow
X2.37
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EGU25-3664
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Highlight
X2.38
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EGU25-6538
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ECS
X2.39
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EGU25-20322
Modeling the Subsurface Structure of the Pati Fault, a Blind Thrust Fault in Central Java, Indonesia, Using Microtremor Data
(withdrawn)
Processes and timing of crust formation in orogens