Symposium A : Lire l'enregistrement sédimentaire - environnements, faciès et analyse de bassin
Symposium B : Lire le temps - stratigraphie et géochronologie
Symposium C : La vie sur terre - organismes et écosystèmes
Symposium D : Histoire des chaînes de montagnes - de la formation à la destruction
Symposium E : Géologie économique - des ressources minéralogiques aux ressources non conventionnelles
Symposium F : Regarder à l'intérieur de la Terre - sous la lithosphère supérieure
Symposium G : Reconstruction du paléoclimat - des données aux modèles
Symposium H : Océans et continents dans le temps et l'espace - tout autour de la paléogéographie
Symposium I : Objets et études géologiques régionaux : de l'affleurement aux grandes unités géologiques
Nous vous invitons à proposer des sessions pour les différents symposiums listés ci-dessus. Si vous pensez nous avons oublié un sujet important dans les sessions proposées, veuillez contacter les organisateurs (geotolosa2025@sciencesconf.org) avant le 1 decembre 2024.
Symposium A: Sedimentary record
Session A1: Reading the sedimentary record - environments, facies and basin analysis
The sedimentary records of the middle and late Paleozoic contain a wealth of information, which allow to reconstruct and discuss various aspects of the functioning, organisation and evolution of sedimentary systems, as well as the various intrinsic and extrinsic factors and processes governing them. This session is open to all research questions focussing on the sedimentary record in the broadest sense and on all scales, from small-scaled objects and studies to basin wide reconstructions, being it in the continental or marine realm. Special focus is given to those questions, which are not explicitly addressed in other sessions.
Symposium B: Reading time and Life on Earth
Session B1: Integrated stratigraphy from Milanković to Million-year timescales
This session is aimed at research concerning cyclo-, bio-, chemo-, and chronostratigraphy,with a special focus on integrated stratigraphic approaches across Milanković to Myrtimescales. This includes both stratigraphy-forward (e.g., synthesis of regional stratigraphic frameworks, establishing absolute durations for stages, resolving challenging time-intervals) and paleoenvironment-forward research (e.g., placing climatic changes into a stratigraphiccontext or assessing the duration of mass extinctions).
Session B2: Life and Bioevents during Devonian time
During the Devonian, the continental landmass grew. This led to the spread of many groups of organisms on land, including vascular plants, arthropods (including hexapods) and first tetrapods. As a result, new terrestrial ecosystems developed in the Middle and Late Devonian. The Devonian was a period of enormous carbonate production with a peak in reef growth. It is also characterised by the greatest diversity of marine fauna in the entire Paleozoic, and, by a large number of major faunal changes (bioevents including extinctions). In this session we welcome presentations of studies and results on Devonian biota from different paleoenvironments, showing in particular its response to biotic crises. The session is also open to various other Devonian topics.
Session B3: Stratigrahic subdivision of the Carboniferous and its paleontological content
The stratigraphic division of the Carboniferous and the definition of the remaining GSSPS remains a major challenge for the Carboniferous Community, which is partly rooted in the strong climatic gradients and paleogeographical barriers characterising Carboniferous times. The Carboniferous biospheres has experienced major changes and crises, but also times of major rediversification, adaptations to changing environments and major innovations, especially in the continental realm. This session welcomes stratigraphic and paleontological contributions in the broadest sense, which addresses the Carboniferous biosphere and the division of time.
Session B4: Permian biota and stratigraphy
The Permian Period is characterised by major geological, climatic and biological events. Almost all continual masses are united in a single supercontinent, Pangea. The Permian sees the end of the Late Paleozoic Ice Age and its transition into the hote late Permian climate. The Permian biota had to adapt to this constantly changing world with often high ecological pressure. All this cumulated in the end-Permian biological mass extinction, which wiped out large parts of the marine and continental biota. This session welcomes stratigraphic and paleontological studies, which addresses the evolution of the Permian biosphere and/or approaches to divide the Permian Period.
Session B5: Co-evolution of life and environments under high-resolution Pennsylvanian time scale
Various geologic and biotic events happened during the Pennsylvanian in both marine and terrestrial realms. Stratigraphic successions with variable completeness are preserved across the globe. The Paleo-Tethyan regions, in particular, have the most complete record of sedimentary sequences and fossil successions, which can provide a high potential to recover both biotic events and environmental changes under a high-resolution time scale. Here we call this session to offer a platform for specialists presenting their studies on biodiversity, and bio-, chrono-, and chemo-stratigraphy, sedimentology, and geochemistry of the Pennsylvanian in the Paleo-Tethyan region and elsewhere, and discussing the timing, tempo, and mechanism of the environmental and biological events during the Pennsylvanian, locally and globally.
Session B6: Correlation of late Carboniferous to early Triassic continental deposits to the marine chronostratigraphic scale - progress and future tasks
Continental deposits and basins are important archives of late Carboniferous to early Triassic times. Establishing precise stratigraphic divisions and correlations over larger distances has been and is still a challenge, although major progress has been made in various regions over the last decades. This is especially true in the regions, where a multitude of different stratigraphic methods have been successfully applied, and resulted in surprisingly precise scales. Despite these recent advances, the correlation into the marine realm and especially to the chronostratigraphic units remains a matter of debate. The aim of the session is to present the recent progress but also to identify further tasks and research directions.
Symposium C: Geodynamics
Session C1: Oceans and continents in time and space - everything around paleogeography and tectonic reconstructions during the Paleozoic
This session welcomes all contributions dealing with palinspastic, paleogeographic and paleoenvironmental reconstructions of the earth surface configuration during the Paleozoic, from the regional to the global scale. Topics include, but are not restricted to, (i) the evolving nature of oceanic domains, continental margins, continental masses and their topography, and the distribution of igneous and sedimentary rocks, (ii) their relations to core/mantle dynamics and/or climate evolution, (iii) the role of paleogeographic/structural inheritance in Late Paleozoic orogenies, or (iv) the surface evolution of Late Paleozoic orogens and continents.
Session C2: Rifting, convergence, mountain building and late- to post-orogenic evolution: views from the magmatic systems
Magmatism is a key indicator of plate interactions, providing essential insights into the nature and timing of geodynamic processes, the thermal state of the lithosphere, and the formation and differentiation of the oceanic and continental crusts. This session invites contributions focusing on magmatism associated with the development of peri-Gondwanan margins, pre-collision convergence leading to the assembly of Pangea, and syn- to post-orogenic processes operating through Late Paleozoic belts formed after the closure of the Rheic, Paleo-Tethys? and other ocean basins. Submissions exploring the relationships among magmatism, tectonics, and sedimentary basins evolution are also highly encouraged.
Session C3: Structure and evolution of ocean basins, continental margins and orogens: constraints from tectonic and geophysical studies
The session welcomes contributions investigating the crustal/lithospheric architecture and tectonic evolution of continental domains at all scales, with bearing on Late Paleozoic orogens, and their precursor continental margins and ocean basins. Geological approaches may include, but are not restricted to, structural geology, geochronology, metamorphic/igneous petrology, basin/sediment provenance analysis or paleo-altimetry.
Session C4: Unraveling metamorphism in Late Paleozoic orogens: new tools, new timelines, new tangles
Understanding the evolution of orogens requires using a broad toolbox able to operate from atomic to lithospheric scales. Petrochronology has established as a decisive tool that bridges the gaps between natural observations and analytical results among mineral phases and tectonic interpretations. Recent advances in analytical techniques, thermodynamic modelling and experimental petrology are designing new avenues to test and refine timing, duration and pressure - temperature - composition conditions of geological processes in Late Paleozoic orogenic systems. This session proposes to: (1) present new findings in the P-T-t evolution of metamorphic terranes, (2) explore case studies in which cutting-edge techniques lead to great leaps and (3) venture overviews of new metamorphic research that help (re)shaping our ideas of orogeny. We welcome contributions using metamorphic geology to unravel the Late Paleozoic orogens timeline and dynamics. Moreover, as with great resolution comes great complications, this session also aims to provide an opportunity to shed light on the tangles encountered and to promote refreshing and forward-driven discussions.
Session C5: From rift to collision: paleogeography and geodynamic evolution of the Iberian Variscides
Special session promoted by the Geological Society of Portugal (SGP) interest groups GGET and GRESBASE
The focus of this session is the evolution of the Iberian Massif of the Variscan belt, from the Early Paleozoic rifting of the Rheic Ocean to the continental collision in the Carboniferous. What implications did the rifting process have on the architecture of the Iberian crust, and on paleogeography, sedimentation and magmatism of northern Gondwana? What is the relationship between the Upper Devonian-lower Carboniferous basins and the lithosphere evolution, and the role of Mississippian high temperature-low pressure metamorphism and related structures? What modifications were imposed on Devonian and Carboniferous sedimentation and ecosystems during the accretionary and collisional orogenic stages? We welcome contributions combining a wide-range of disciplines and approaches at multiple scales, from field-based observations to the microscale, and employing various analytical techniques. We are keen to have ECR works featuring in this session.
Session C6: Late Paleozoic sedimentary basins: from paleoenvironments to geodynamics
This session aims at gathering scientists working on syn to post orogenic sedimentary basins associated with the Late Paleozoic orogens (Devonian, Carboniferous and Permian). We are expecting contributions in the fields of structural geology, tectonics-sedimentation relationships, basin dynamics and paleoenvironmental reconstructions, as well as their links with internal and external forcing factors. This session also deals with sedimentology, geochemistry, geochronology, tectonics, sediment sources tracing, paleoenvironmental and climate proxies. It aims to better understand the links between first-order factors and their retroactions governing surface processes and the preservation of sedimentary systems, as well as those controlling syn- to post-collision processes and long-term climate change.
Symposium D: Economic geology - from ore deposits to non-conventional resources
Session D1: Mineral systems of the Late Paleozoic orogens
The understanding of mineral deposits of the Late Paleozoic orogenic belts has historically been a key for the development of Geology associated with the Industrial Revolution. Indeed, the first edited regional scale geological maps in North America, Great Britain, Germany and France, mostly representing the Variscan belt, were driven by the urge to find mineral and energy resources to build the infrastructures of the consumption society but also induced a spectacular development of geological concepts and knowledge. Two hundred years later, the world is facing new challenges related to access to the so-called high-tech metals such as Li or Nd but also to the reassessment of the potential for more classical metals such as Cu or Ni, in order to meet the needs of the numerical and energy transitions. In this session, we encourage contributions addressing mineral systems of the Late Paleozoic orogenic belts that might serve as a guide for future assessment of the potential of the Paleozoic basement for mineral and energy resources.
Session D2: Carboniferous-Permian basins in the energy transition
Carboniferous-Permian sedimentary basins have become vital components of the energy transition. This session will cover, without being restrictive, the themes of mineral resources (e.g. CRM), exploration and/or exploitation of underground reservoirs for geothermal energy, hydrogen and natural helium, and studies on the storage of resources (H2, thermal storage) or waste (i.e. CO2). We aim to open this session up to a broad community addressing all related geological themes (e.g. sedimentology, stratigraphy, diagenesis, structural geology, geophysics, geochemistry, geochronology, etc.), and across all scales, from individual samples (collected in the field or through borehole drilling) to reservoirs and entire basins.
Symposium E: Paleoclimate
Session E1: Reconstructing paleoclimates - from data to models
This session aims to explore climate reconstructions and processes throughout the Devonian to Permian times. In recent years, the number of available data has grown exponentially, including paleontological, sedimentological, isotopic, and geochemical data. Several questions arise, as (i) is there a unified picture emerging from this large amount of data, or (ii) how do we separate the global evolution and long-term trends from regional conditions and more pronounced changes or (iii) are results from numerical models and geological observations a good fit? The session is open to all studies and approaches shedding light on the upper Paleozoic climate.
Session E2: Global carbon cycling, paleoclimate changes and marine redox landscape during the Late Paleozoic Ice Age
The Late Paleozoic Ice Age (LPIA, 360–260 million years ago) is the thus far longest-lived icehouse climate in the Phanerozoic and the only one that recorded a transition from an icehouse to a greenhouse climate since the appearance of advanced plants and a complex terrestrial ecosystem. The LPIA is often compared to the Cenozoic icehouse, which may provide a unique deep-time geological analogue to modern global warming. The LPIA is featured by dynamic global carbon cycling and paleoclimate changes, which are only moderately studied. Although the atmospheric paleo-O2 during the LPIA is hypothesized to be the highest during the entire Earth history, the marine redox landscape remains poorly constrained. This session aims to provide a platform for colleagues to introduce their recent research progress and to exchange their knowledge on the LPIA, including, but not limited to, the following subjects: (1) global and regional carbon cycling, (2) continental weathering, (3) marine primary productivity and redox conditions, and (4) biogeochemical and Earth system modeling of the LPIA. All these subjects from astronomical (“Milanković”) timescale to tectonic timescale are all welcome.
Symposium F: Regional geology and geoheritage
Session F 1: Regional geology and case studies: from the outcrop to global implications
Regional geological studies often encompass multiple geological disciplines and techniques to study important geological features of a region. They are essential cornerstones for the geological knowledge. This session welcomes all kind of regional geological studies of the late Paleozoic (Devonian-Permian); ranging from the description of particular outcrops or geological phenomena to large regional synthesis.
Session F 2: Geoheritage and geoconservation of the Late Paleozoic
Geoheritage includes the most representative, unique and interesting elements of the geological record with a significant scientific, educational, and aesthetic value. It is a legacy for the future generations. The Late Paleozoic is a key period for the knowledge of Earth and its history. The most valuable geological elements result from geological processes, whether assets, features, landforms or structures, important to any geoscience such as stratigraphy, paleontology, tectonics, geodynamics, etc. This session aims to discuss on the conservation, management and promotion of the relevant geological sites of interest and outstanding collections associated with orogens and basins during Devonian, Carboniferous and Permian times.
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