The past 500 million years of Earth's history were marked by episodes of mass extinction and other extreme environmental changes that coincided with periods of major volcanic eruptions, bolide impacts, and other uncertain events. Records based on proxy data and other approaches have demonstrated a causal relationship between environmental and geologic or extraterrestrial events. However, our understanding of the wider context and nature of environmental changes before, during, and after these events remains incomplete. This session invites contributions presenting the latest research advances on the end-Ordovician, Late and end-Devonian, end-Permian, end-Triassic, end-Cretaceous, and other periods of biotic crisis and/or global climate, such as Oceanic Anoxic Events or the Paleocene-Eocene Thermal Maximum. The session aims to bring together researchers from geological, geochemical, geophysical, and biological disciplines to improve our understanding of the cause-effect scenario of the five major mass extinction events as well as other lesser-known events of environmental and climatic crisis

The evolution of orogenic systems is governed by processes operating across a wide range of spatial and temporal scales, extending from the asthenosphere through the lithosphere and the Earth’s surface, and acting from seconds to millions of years. Understanding the links between deep-seated, lithospheric and surface processes and their role in orogenic evolution is an increasingly prominent research topic that requires multidisciplinary approaches to gain robust spatio-temporal constraints. This involves the integration of data generated from a variety of techniques such as low- and high-temperature thermochronology, geophysics, tectonics, petrology, geochemistry, sedimentology, structural analysis, geomorphology, and modeling.
Such a strategy enables the reconstruction of the timing, rates, and magnitude of processes driving orogenic evolution, as well as their relationships with mantle, crustal, and surface dynamics.
This session focuses on the intrinsic links between surface and deep-Earth processes in shaping orogenic systems and controlling their spatial and temporal evolution. Topics include the exhumation and surface uplift history of mountain ranges and orogenic plateaus, evolution of foreland and intermountain sedimentary basins, methodological developments on the integration of diverse dataset, landscape evolution, and tectonic plate reconstructions. Research focused on both collisional and subduction-related orogens affected by hinterland extension is welcome.

The "Planetary Geomorphology and Surface Processes" session brings together scientists studying how landscapes form, evolve, and erode on Earth and other planetary bodies in our Solar System.
Our session will provide a platform for cross-planetary discussion of the processes that generate and erode landscapes, create stratigraphy, and couple planetary surface dynamics to climatic and tectonic drivers. Considered processes could include aeolian, volcanic, tectonic, fluvial, glacial, periglacial, or as-yet "undetermined" ones.
We welcome contributions on Mars, Venus, Mercury, the Moon, icy satellites of the outer solar system, comets, and/or asteroids, to submit to our session. We believe that an interdisciplinary approach through sharing and discussing ideas across planetary borders is key in answering current questions and for the formation of new ideas, and thus we especially encourage cross-planetary contributions. We particularly welcome contributions from early-career scientists and geomorphologists who are new to planetary science.

Accurate reconstructions of sea surface, bottom water, and continental surface temperatures during the Cenozoic era are essential for understanding climate dynamics in the geological past, particularly under warmer-than-present conditions. However, producing robust and precise paleotemperature estimates remains inherently challenging. Temperature proxies are subject to a range of geochemical, biological, environmental, and analytical uncertainties, which lead to discrepancies in both absolute and relative temperature estimates across different methods. These limitations hinder efforts to synthesize globally representative paleotemperature records and to constrain the rates and magnitudes of global temperature changes in response to both abrupt and long-term changes in atmospheric CO₂.

Addressing these challenges requires new approaches, including improved proxy calibrations, and more comprehensive inter-proxy and proxy-model comparisons, to obtain a better understanding of the uncertainties associated with paleotemperature reconstructions. In this session, we welcome contributions that push the boundaries of Cenozoic paleotemperature research, including new multi-proxy and multi-site temperature reconstructions, new advances in proxy ground-truthing, applications, and calibrations, and novel modelling perspectives on paleotemperature changes. By bringing together the diverse community using proxy and modelling techniques, we seek to increase the robustness of Cenozoic ocean and terrestrial temperature reconstructions. Ultimately, this will improve our understanding of Earth’s climate system and its behaviour during warmer-than-present states.

Sitting under a tree, you feel the spark of an idea, and suddenly everything falls into place. The following days and tests confirm: you have made a magnificent discovery — so the classical story of scientific genius goes…

But science as a human activity is error-prone, and might be more adequately described as "trial and error". Handling mistakes and setbacks is therefore a key skill of scientists. Yet, we publish only those parts of our research that did work. That is also because a study may have better chances to be accepted for scientific publication if it confirms an accepted theory or reaches a positive result (publication bias). Conversely, the cases that fail in their test of a new method or idea often end up in a drawer (which is why publication bias is also sometimes called the "file drawer effect"). This is potentially a waste of time and resources within our community, as other scientists may set about testing the same idea or model setup without being aware of previous failed attempts.

Thus, we want to turn the story around, and ask you to share 1) those ideas that seemed magnificent but turned out not to be, and 2) the errors, bugs, and mistakes in your work that made the scientific road bumpy. In the spirit of open science and in an interdisciplinary setting, we want to bring the BUGS out of the drawers and into the spotlight. What ideas were torn down or did not work, and what concepts survived in the ashes or were robust despite errors?

We explicitly solicit Blunders, Unexpected Glitches, and Surprises (BUGS) from modeling and field or lab experiments and from all disciplines of the Geosciences.

In a friendly atmosphere, we will learn from each other’s mistakes, understand the impact of errors and abandoned paths on our work, give each other ideas for shared problems, and generate new insights for our science or scientific practice.

Here are some ideas for contributions that we would love to see:
- Ideas that sounded good at first, but turned out to not work.
- Results that presented themselves as great in the first place but turned out to be caused by a bug or measurement error.
- Errors and slip-ups that resulted in insights.
- Failed experiments and negative results.
- Obstacles and dead ends you found and would like to warn others about.

For inspiration, see last year's collection of BUGS - ranging from clay bricks to atmospheric temperature extremes - at https://meetingorganizer.copernicus.org/EGU25/session/52496.

Stable and radiogenic isotopic records have been successfully used for investigating various terrestrial and marine sequences in term of special events including geological boundaries, fossils, evaporative rocks, palaeosols, lacustrine, loess, caves, peatlands. The session includes contributions using isotopes along with sedimentological, biological, paleontological, mineralogical, chemical records in order to unravel past and present climate and environmental changes or as tracers for determining the source of phases involved. Directions using triple isotopes, clumped isotopes, biomarkers and non-traditional stable isotopes are welcomed.
The session invites contributions presenting an applied as well as a theoretical approach. We welcome papers related to reconstructions (at various time and space scales), fractionation factors, measurement methods, proxy calibration, and verification.

Are you unsure about how to bring order in the extensive program of the General Assembly? Are you wondering how to tackle this week of science? Are you curious about what EGU and the General Assembly have to offer? Then this is the short course for you!

During this course, we will provide you with tips and tricks on how to handle this large conference and how to make the most out of your week at this year's General Assembly. We'll explain the EGU structure, the difference between EGU and the General Assembly, we will dive into the program groups and we will introduce some key persons that help the Union function.

This is a useful short course for first-time attendees, those who have previously only joined us online, and those who haven’t been to Vienna for a while!

This multidisciplinary session examines the relationship between the scientific concept of the Anthropocene epoch, based on analysis of stratigraphic archives, with societal issues such as "justice," "migration," "education," "work," "health" or "food," all of which raise (geo-)ethical issues on our now unpredictable planet. The Anthropocene epoch, as a unifying concept, helps us (1) understand the transformed bioclimatic conditions in which we live, (2) appreciate how fragile they are, how rapidly they are shifting, and their implications for humanity, and (3) explain the importance of containing climatic, biological, and attendant societal runaway effects, through deeper understanding of the Earth and human social systems. The Anthropocene epoch, as represented by the AWG’s (rejected) proposal, is characterised by a sharply expressed and lasting change in the habitability of the Earth that is now human-driven but in which planetary feedbacks and tipping points will likely become increasingly important. In detail, it is a complex concept. However, in broad terms it is straightforward to communicate to a wide audience, given that many of the component phenomena (e.g. the rises in greenhouse gases, sharp biodiversity decline and catastrophic natural hazards) are clearly, even dramatically, expressed in such processes as runaway effects and tipping points, collapse and acceleration. Stratigraphic evidence-based and systemic in scope, the Anthropocene epoch also entails a(n) (geo-) ethical responsibility for conveying the concerns of scientific communities about the worsening of bioclimatic living conditions. (1) How can we pass on the knowledge of the Anthropocene (stratigraphic, systemic and from the human and social sciences) to young people without undermining their ability to envisage their future? (2) What use can we make of the Anthropocene to challenge public policy without suggesting that science can or should dictate that policy? (3) How can we make the systemic power of the Anthropocene concept not eradicate all hope for the habitability of humans and all other life forms on the planet (4) How can we combine the power of the diagnosis of this new geological epoch with an intellectually honest hope that will mobilise people to transform their communities and societies? Studies and contributions from any continent or discipline from a broad and diverse ranges of studies will be considered.

This session offers to stratigraphers, sedimentologists and palaeontologists an opportunity to present works that do not fall within research areas covered by this year's special themes. The PICO format provides the maximum opportunity to present research on diverse themes to the widest possible audience.

Environmental changes and the geodynamic evolution of continents have facilitated both the emergence of life on Earth and the diversification of mineral species from the early Archean until today. However, the physico-chemical conditions of ancient environments remain poorly understood, particularly regarding the processes and consequences of major oxygenation events (e.g., the Great Oxidation Event, Neoproterozoic Oxygenation Event, and Phanerozoic Oceanic Anoxic Events) and associated mass extinctions, as well as the influence of continents and mantle processes in modulating ocean chemistry at different times in Earth’s history.
Understanding key processes shaping modern and ancient environments; such as weathering, hydrothermal alteration of the oceanic crust, bacterial activity, sedimentation, and diagenesis; is crucial for reconstructing paleo-environments. Redox processes and Earth’s oxygenation during critical transitions and biotic crises are central to unraveling the links between environmental change and biological evolution.
With this session, we encourage contributions from the interdisciplinary fields of geochemistry, oceanography, sedimentology, mineralogy, and geo(micro)biology with a particular emphasis on geochemical and isotope-based approaches to redox reconstructions, element cycling, and paleoenvironmental modeling. We welcome studies addressing the evolution of early life habitats, biomineralization, and paleobiological responses during intervals of profound environmental and climatic change, highlighting the links between Earth's chemical evolution and life.

This session aims to bring together researchers focused on the geology of Qatar, which is characterized by a carbonate-dominated geology and low-relief topography. However, it is more than this description and has many geological and geomorphological features that are critical for understanding hydrocarbon sources, tectonic evolution, and environmental change.
We invite researchers from many disciplines to discuss more on the stratigraphy, sedimentology, tectonics, karstology, and coastal geology of Qatar and its surroundings.

In sedimentary volcanism, underground sediments, water and gases ascend to the surface, both inland and offshore, within a compressive tectonic regime. The ejected material builds up edifices resembling volcanoes, hence the term Mud Volcanoes (MVs). Some of these structures exhibit paroxysmal activity, characterized by violent gas blasts or sudden expulsions, releasing huge volumes of mud that represent a severe geohazard. In general, MVs emit significant CH4 and minor CO2 and light hydrocarbons amounts affecting the life cycles of animals and plants.
MVs constitute natural laboratories for investigating several poorly understood processes, such as geochemical and physical dynamics during ongoing eruptions, the interaction between faulting and fluid reservoirs, the hydrological cycle or periodic inflation-deflation cycles at the crustal scale (e.g., those driven by Earth tides), as well as their buried structure.
MVs are often hosted within Nature Reserves that provide a safe environment for monitoring activities, whose main goal is to intercept potential precursors of paroxysmal events. Moreover, since these Reserves are visited by many people every year, monitoring is crucial not only for scientific purposes but also for ensuring the safety of visitors and nearby populations.
This session is addressed to investigations of:
- the reconstruction of the deep engine dynamics of MV activity and their stratigraphic structure;
- the processes that form mud volcanos and drive material migration to the surface;
- the hydrological regime and its influence on MV activity;
- outcomes from long-term monitoring and spot-survey;
- the interplay between the regional/local seismicity and MV activity, as manifestation of crustal dynamics;
- the remote sensing terrain and surface modeling, and geophysical imaging;
- the impact of MVs activity on ecosystems and climate.
Multidisciplinary approaches to the MVs study, aimed at identifying reliable indicators of their activity state, are welcome.

A variety of geophysical and geological observational techniques are now mature enough to provide valuable insights into the influence that mantle convection has on Earth surface and its core. Current challenges include the need to reconcile different spatial resolutions between models and observations, uneven data coverage and the determination of appropriate sampling and simulation scales. This session will provide a holistic view of the influence of mantle convection on core dynamics and surface expressions from geodetic to geological time scales using multi-disciplinary methods, including (but not limited to): geodetic, geophysical, geological, long-term evolution of the geomagnetic field, Earth's core dynamics magnetism and the seismic imaging of mantle convective processes, as well as numerical modeling.
This session will provide rich opportunities for presenters and attendees from a range of disciplines, demographics, and stages of their scientific career to engage in this exciting and multidisciplinary problem in Earth science.

Our planet is warming due to human emissions of greenhouse gases, which have increased drastically since the industrial revolution. To navigate potential pathways for future climate, we need to better understand the impacts of elevated greenhouse gas emissions on the global heat budget and how the climate system functioned in conditions warmer than today. Geological archives and model simulations of past climate states are the key to deciphering climate dynamics in warm and varied conditions.
In this session, we welcome contributions from these vast geological archives and model simulations aimed at reconstructing and understanding Earth’s climate system over the past 100 million years. These submissions may reflect long-term and/or short-term changes such as Milankovitch cyclicity to suborbital/millennial variability. Submissions working on chronological or stratigraphic fundamentals underpinning this interval are encouraged. We also welcome contributions from those seeking to better assess Earth’s climate system sensitivity through reconstructions of atmospheric CO2 concentrations and global or regional temperatures. This includes biodiversity dynamics and disruptions in warm marine and terrestrial states.
The goal of this session is to bridge the diverse community studying the nature of the warm climate states found in the Cretaceous and Cenozoic. We consciously welcome a broad range of approaches to facilitate synergies to learn from past warm climate conditions to navigate into the future warmer world.

The geological record provides insight into how climate processes operate and evolve in response to different than modern boundary conditions and forcings. Understanding deep-time climate evolution is paramount to progressing on understanding fundamental questions of Earth System feedbacks and sensitivity to perturbations, such as the behaviour of the climate system and carbon cycle under elevated atmospheric CO2 levels—relative to the Quaternary—, or the existence of climatic tipping points and thresholds. In recent years, geochemical techniques and Earth System Models complexity have been greatly improved and several international projects on deep-time climates (DeepMIP, MioMIP, PlioMIP) have been initiated, helping to bridge the gap between palaeoclimate modelling and data communities. This session invites work on deep-time climate, Earth System model simulations and proxy-based reconstructions from the Cambrian to the Pliocene. We especially encourage submissions featuring palaeoenvironmental reconstructions, palaeoclimate and carbon cycle modelling, and the integration of CO2 and (hydro)climate proxies and models of any complexity.

This session explores paleoenvironmental and climatic changes during the Early to Middle Pleistocene Transition (EMPT) between 1.4 and 0.4 Ma. We welcome contributions based on diverse proxies (pollen, molecular biomarkers, loess…), multidisciplinary approaches and model simulations, with the aim of fostering discussion and advancing our understanding of the still poorly understood climate variability during the EMPT.

Stratigraphy is the foundation of our understanding of Earth's history. Timing is crucial for unraveling causal relationships between major climatic events, as well as understanding the underlying processes and estimating recovery time. While various techniques that can date such perturbations to within 10,000 years of their occurrences have been developed and improved over the last few decades, it is still difficult to establish accurate and consistent age models across the world’s many regions. These inaccuracies hinder scientists' ability to fully understand our home planet's history.
In this session, we welcome contributions related to the recently launched Time-Integrated Matrix for Earth Sciences (TIMES) initiative. TIMES is an ambitious international community effort that, over the next ten years, aims to recalibrate global climate records from the last 100 million years on a unified, accurate, and precise timeline. The session intends to bring together the diverse community of geochronologists, astrochronologists, paleontologists, stratigraphers and paleoclimatologists. The session will focus on presenting state-of-the-art approaches and current challenges, aligned with the upcoming PAGES Special Issue: “The Time-Integrated Matrix for Earth Sciences”. We also encourage submissions related to the development of academic teaching tools, user applications and public databases that will strengthen the TIMES community. Note that this will be organized as a poster-only session in order to foster effective on-site discussions and knowledge exchange amongst participants.

Earth history is marked by significant disruptions in global climate, changes in geochemical cycling, and faunal turnover events. The investigation of these events across Earth history is based on accurate and integrated stratigraphy, utilizing a broad range of geological and geophysical techniques, unique stratigraphic features, and established and novel paleoclimate and paleoenvironmental proxies. This session will bring together specialists in all branches of stratigraphy, paleoclimatology, and paleontology, spanning from the Archean to the Holocene. The aim is to introduce new techniques and methods that help improve the stratigraphic and paleoenvironmental toolbox.

This session is organized by the International Subcommission on Stratigraphic Classification (ISSC) of the International Commission on Stratigraphy (ICS) and is open to the Earth science community at large

Tephrochronology – the study of volcanic ash (tephra and cryptotephra) layers as stratigraphic and chronological markers – has become a cornerstone for reconstructing Earth processes (e.g., climate, tectonics, volcanology). These investigations are particularly valuable for the relatively recent Quaternary records, enabling the understanding of current processes, along with the forecasting for future scenarios. By providing precise, independent time markers, tephra horizons enable robust correlations and synchronization across a wide spectrum of sedimentary archives, from terrestrial to marine and lacustrine basins, glaciers and ice cores, and even archaeological sites.
Recent advances in geochemical fingerprinting, detection of cryptotephra, and high-resolution age-modelling have expanded the reach of tephrochronology well beyond stratigraphy and dating, as it serves as integrative tools to tackle fundamental questions on climate variability, ecosystem responses, volcanic hazards and human–environment interactions. Marine, lacustrine and glacial records are emerging as underexploited archives that can reshape our understanding of eruptive histories and associated risks.
This session invites contributions that apply tephrochronology across disciplines and scales: from methodological breakthroughs to innovative applications in palaeoclimatology palaeoecology, volcanology, archaeology and environmental sciences. We particularly encourage studies that push the boundaries of distal and cryptotephra research, explore underutilized archives, or propose new integrative frameworks where tephrochronology acts as a central connector in Earth system science.
This session is sponsored by the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) Commission on Tephrochronology (COT).

Our session addresses the generation of signals by tectonic, climatic, base-level, and autogenic processes; their spatial transmission from sources to downstream sinks within fluvial systems; and their temporal preservation or erosion in the stratigraphic record. Terrestrial archives and landforms are fundamental for reconstructing past climatic and tectonic conditions, yet experimental and numerical studies demonstrate that many signals are modified, buffered, or erased during transfer.

The interplay between weathering, denudation, deposition, and preservation makes fluvial source-to-sink signal propagation research inherently multidisciplinary, particularly across sedimentology and geomorphology. For example, lithological properties and weathering rates determine erodibility and system response times, while basin configuration impacts downstream channel dynamics, sediment delivery, and the character of sedimentary variability. Advancing understanding of these interactions is essential to constrain system sensitivity across timescales, and the preservation potential of different signal types.

We invite contributions from projects that advance knowledge of Earth surface dynamics in response to tectonic, climatic, environmental, and weathering controls, with a particular emphasis on integrative approaches that link geomorphic processes, sedimentary archives, and stratigraphic preservation.

The evolution of orogens and sedimentary basins is driven by the complex interplay between crustal deformation, mantle dynamics, and climate-driven surface processes. Despite longstanding recognition of their importance, the feedback mechanisms linking erosion, sediment transport and deposition, crustal tectonics, and mantle dynamics—including magmatism—remain poorly understood.
Advancing our understanding of these coupled systems requires an interdisciplinary approach. A major challenge lies in quantifying uplift, erosion, subsidence, and sedimentation, while distinguishing the respective roles of crustal deformation, mantle flow, and climate-driven processes—each acting across different spatial and temporal scales and often leaving overlapping signals in the geological record.
This session aims to bring together comprehensive studies that integrate observational data (e.g., field studies, geophysical and well data, thermochronology), theoretical frameworks, and both analogue and numerical modelling. Our goal is to foster dialogue between disciplines and highlight innovative approaches that bridge mantle, lithospheric, crustal, and surface processes.
We welcome contributions that explore the coupling of tectonics and surface processes, including the roles of climate, erosion, sedimentation, and deep Earth dynamics in shaping the Earth's surface over time.

Continental rifting is a complex process spanning from the inception of extension to continental rupture or the formation of a failed rift. This session aims to combine new data, concepts and techniques elucidating the structure and dynamics of rifts and rifted margins. We invite submissions addressing the time-dependent evolution of processes such as faults and ductile shear zones development, tectonic and sedimentary history, magma migration, storage and volcanism, lithospheric necking and rift strength loss, influence of the pre-rift lithospheric structure, rift kinematics and plate motion, mantle flow and dynamic topography, as well as break-up and the transition to seafloor spreading. We encourage contributions using multi-disciplinary and innovative methods from field geology, geochronology, geochemistry, petrology, seismology, geodesy, marine geophysics, plate reconstruction, or numerical or analogue modelling. Emphasis will be given to presentations that bridge spatial and temporal scales and integrate insights from active rifts, passive margins, and failed rift arms.

Speleothems are key terrestrial archives of regional to global palaeoclimatic and palaeoenvironmental changes on sub-seasonal to orbital timescales. They provide high temporally resolved records which can be accurately and precisely dated using a variety of proxies, such as stable O and C isotopes and trace elements. Recent efforts have seen the rise in more non-traditional proxies such as fluid inclusion water isotopes, organic biomarkers, pollen, dead carbon fraction etc. This advancement towards quantitative reconstructions of past precipitation, temperature, or other environmental variables and climate patterns are key variables for data-model comparisons and evaluation. Beyond this, caves and karst areas additionally host an enormous suite of valuable proxy archives such as cave ice, cryogenic carbonates, clastic sediments, tufa, or travertine sequences, which complement the terrestrial palaeorecord, and are often associated with important fossils, historical or archaeological findings.

This session aims to integrate recent developments in the field and invites submissions from a broad range of cave- and karst-related studies from orbital to sub-seasonal timescales.
In particular we welcome contributions from:
(1) (quantitative) reconstructions of past climatic and environmental variables to reconstruct precipitation, vegetation, fire frequency, temperature etc. across different climate zones,
(2) field- and lab-based developments of process-based methods to improve our application of proxy variables,
(3) process and proxy-system model studies as well as integrated research developing and using databases such as SISAL (Speleothem Isotope Synthesis and AnaLysis).

We further welcome advancements in related and/or interdisciplinary areas, which pave the way towards robust (quantitative) interpretations of proxy time series, improve the understanding of proxy-relevant processes, or enable regional-to-global and seasonal-to-orbital scale analyses of the relationships between proxies and environmental parameters. In addition, research contributing to current international co-ordinated activities, such as the PAGES working group on Speleothem Isotopes Synthesis and AnaLysis (SISAL) and others are welcome.

Underwater landscapes, from shallow coastal zones to deep ocean, are shaped by a complex interplay of geologic, biologic, oceanographic and anthropogenic processes. These dynamic interactions create diverse landforms that reveal valuable insights into the underlying mechanisms driving their formation. Understanding these processes, which operate across varying spatial and temporal scales, is essential for assessing offshore geohazards and ensuring the sustainable management of marine environments.
This interdisciplinary session explores the causes and consequences of processes shaping submarine landforms and seafloor evolution. Topics include erosional and depositional dynamics, marine bioconstructions, gravitational driven and current-induced sediment transport, submarine landslides, active deformation, volcanic activity, faulting and folding, and emphasis is given to subseafloor fluid migration and venting at the seafloor. Contributions may address marine or lacustrine environments across all physiographic regions, including coastal zones, marginal seas, continental shelves and slopes, oceanic plateaus, abyssal hills, mid-ocean ridges and accretionary wedges. We welcome studies that integrate diverse approaches, such as satellite-derived and hydroacoustic seabed characterizations, visual and ROV-based observations, seismic imaging and sedimentary, geochemical, and/or geological sampling. Such interdisciplinary studies provide exciting opportunities to advance quantitative geomorphology, extend it offshore, and deepen our understanding of the processes shaping submarine landscapes.

The source-to-sink (S2S) approach is a fundamental method in sedimentary geology, offering a strong framework to understand the full journey of sediment from continental source areas to deep-sea basins. These sediment routing systems serve as invaluable records, capturing the complex interaction between external forces, such as climate, sea-level changes, tectonics, and Earth's internal surface processes. By examining the entire sediment continuum, researchers can uncover key information about landscape development, basin evolution, ancient environments, and sediment provenance. The vast and active landscapes of Asia and Oceania, shaped by mountain-building, strong monsoonal weather, and major sea-level shifts, provide an exceptional natural laboratory for deepening our grasp of these complex Earth systems. Despite its power and widespread use, the S2S approach faces ongoing challenges that can reduce its predictive accuracy and reproducibility. Significant uncertainties still exist when trying to connect different spatial and temporal scales, from grain-scale processes in a catchment to the basin-scale stratigraphic architecture built up over millions of years. Combining diverse datasets and accurately measuring the influence of various forces on the sedimentary record remains a major obstacle. These scaling, resolution, and process-related challenges can cause unquantified risks in geological models, highlighting the urgent need for a dedicated platform to gather recent advancements and promote a more reliable, quantitative, and reproducible S2S science.
This session aims to address these challenges by showcasing the latest advancements in S2S research across Asia and Oceania. We welcome the submission of interdisciplinary studies that highlight recent advancements in perspectives, methods, and applications. The session will span the breadth of S2S research with contributions that utilize multi-proxy approaches including geophysical data, numerical and analogue modelling, sedimentary provenance analysis, and field observations to develop a comprehensive understanding of sediment routing systems. By promoting diverse research that links S2S dynamics to urgent global issues such as sustainable geoscience, energy transition, geohazard mitigation, and climate change, this session will not only deepen our fundamental understanding of Earth surface processes but also underscore the vital role of S2S science in addressing contemporary societal challenges.

Carbonate sediments have formed in a wide range of marine and non-marine settings through the complex interplay of biological, chemical and physical processes. Precisely-constrained high-resolution stratigraphic records are important for determining past global change and understanding the complex interactions between climatic processes, oceanographic and environmental changes, the biosphere, stratigraphic architecture and subsequent diagenetic processes. The complementary study of present-day carbonate depositional systems is crucial to the interpretation of these systems.

Sedimentary systems are excellent archives of past environmental change across the globe and have contributed significantly to our understanding of the Earth’s planetary system. The increasing number of available short and long (ICDP) sediment cores, along with seismic and bathymetric data, continues to be pivotal for assessing climate and environmental change, human activities as well as tectonic and volcanic activity, among others.
We invite contributions that use sedimentological, geochemical, biological, and chronological tools in lake systems and their sedimentary records. Contributions should aim to deduce quantitative and spatial rates of change, causes and consequences of long- and short-term climate variability, and/or assess the impact, magnitude, and frequency of tectonic and volcanic activities and landscape changes in their catchments on these systems. We particularly encourage submissions about novel analytical approaches (destructive and non-destructive) and data analysis (statistics, machine learning, AI) that guide future research directions in limnogeology.

Sedimentary carbonate minerals record the history of Earth's surface conditions and the evolution of various biogeochemical cycles. Numerous chemical, biological, and physical processes are involved in the formation, transportation, and diagenetic alteration storing the information. This session focuses on process-based approaches to understanding the genesis and diagenesis of sedimentary carbonate sediments and rocks over geologic time, including, but not limited to, new developments in carbonate sedimentology, biogeochemistry, taphonomy, petrology, stratigraphy, biomineralization, and microbial ecology. We welcome contributions applying field, petrographic, geochemical, geobiological, experimental, or modeling approaches to interpret the mechanisms, processes, conditions, and environments of deposition and diagenesis of both modern sediments and ancient carbonate rocks and mixed siliciclastic-carbonate successions. We specifically encourage studies that aim at developing carbonate-based proxies for environmental parameters with implications for paleoclimate and broader Earth system processes, as well as studies that focus on modern settings to guide interpretations of the rock record.

Session description
This session aims to bring together multidisciplinary perspectives on the interplay between microbial activity, sedimentary processes, and geochemical signatures in lacustrine and marine environments, both modern and ancient. We seek contributions that explore how microbial metabolisms influence mineral formation (e.g., carbonates, clays, sulphates), how isotopic and molecular biosignatures record biogeochemical processes, and how sedimentary archives can be interpreted to reconstruct past environmental and climatic conditions.
We particularly encourage submissions that combine natural systems with experimental analogues, including laboratory simulations of mineral precipitation, microbe–mineral interactions, and environmental gradients. Studies integrating field observations, experimental data, and cutting-edge analytical or computational approaches (e.g., spectroscopy, synchrotron techniques, geochemistry, stable isotopes, machine learning) are especially welcome.
Topics of interest include, but are not limited to:
• Microbially mediated mineral precipitation in lacustrine and marine systems
• Early diagenesis and biosignature formation: field, lab, and model approaches
• Stable isotope systems as proxies for microbial and environmental processes
• Experimental analogues simulating early Earth, Mars-like, or extreme environments
• Sedimentary and geochemical archives for paleoclimate and paleoenvironmental reconstructions
• Integration of microbial ecology, mineralogy, and geochemistry to assess biogeochemical feedbacks
• Applications to the search for early life and biosignatures in the geological record and planetary contexts

Minerals are formed in great diversity under Earth surface conditions, as skeletons, microbialites, speleothems, or authigenic cements, and they preserve a wealth of geochemical, biological, mineralogical, and isotopic information, providing valuable archives of past environmental conditions. Interpretion of these archives requires fundamental understanding of fluid-rock interaction processes, but also insights from the geological record.

In this session we welcome oral and poster presentations from a wide range of research of topics, including process-oriented studies in modern systems, the ancient rock record, experiments, computer simulations, and high-resolution microscopy and spectroscopy techniques. We intend to reach a wide community of researchers sharing the common goal of improving our understanding of the fundamental processes underlying mineral formation, which is essential to read our Earth’s geological archive.

The recent methodological and instrumental advances in paleomagnetism and magnetic fabric research further increased their already high potential in solving geological, geophysical, and tectonic problems. Integrated paleomagnetic and magnetic fabric studies, together with structural geology and petrology, are very efficient tools in increasing our knowledge about sedimentological, tectonic or volcanic processes, both on regional and global scales. This session is intended to give an opportunity to present innovative theoretical or methodological works and their direct applications in various geological settings. Especially welcome are contributions combining paleomagnetic and magnetic fabric data, showing novel approaches in data evaluation and modelling scale across all timescales.

Large Igneous Provinces (LIPs) represent outstanding expressions of voluminous melt production in the mantle and subsequent rapid lithospheric magma transport and crustal emplacement. Their build-up requires a wealth of interrelated mantle and crustal processes within the lithosphere, including continental extension and breakup, lower and upper crustal assimilation and differentiation of the magma, and the origin of new continental and oceanic crust by emplacement of either intrusive or extrusive complexes. The formation of LIPs is increasingly recognised as playing a pivotal role on crust–mantle mass transfer, the localisation of critical mineral deposits, and massive volatile release and associated global climate change. The development of these provinces is, however, not well constrained, including the tempo and magnitude of melt generation, magma transport and emplacement mechanisms, magma-lithosphere interaction processes at different depths, and the physical volcanology including volatile transfer pathways and fluxes.

This session seeks contributions that dissect the physical and chemical processes governing the generation, emplacement, and evolution of LIPs, including volcanic rifted margins, across scales from mantle melting dynamics to surface expressions, from magma chamber processes to the emplacement styles of lava piles and seaward dipping reflectors. We particularly encourage studies combining high-resolution geochronology, petrology, isotopic and trace-element geochemistry, geophysical imaging, numerical/analogue modelling, and environmental proxy records.

Foraminifera and other eukaryotic microfossil organisms play a crucial role in understanding the biology, ecology, and evolution of marine ecosystems across geological timescales. These organisms serve as key indicators for reconstructing past environments, deciphering ecosystem dynamics, and assessing the impacts of global change on marine systems. This session focuses on the biology and ecology of foraminifera and other microeukaryotes, exploring their functional roles in ecosystems, their responses to environmental changes, and their potential as proxies for past, present, and future ocean conditions.

We welcome contributions that investigate these organisms through diverse approaches, including laboratory experiments, field studies, genetic and molecular analyses, biomineralization studies, isotopic and geochemical techniques, and advanced data analysis methods such as machine learning and modelling. Studies addressing the role of microfossils in biotic evolution, ecosystem functioning, and their responses to natural laboratories (e.g., hydrothermal vents, cold seeps, or areas of rapid environmental change) are particularly encouraged.

By integrating biological, ecological, and geochemical perspectives, this session aims to advance our understanding of how foraminifera and other microfossil organisms respond to environmental variability, contribute to ecosystem processes, and provide insights into the dynamics of Earth’s systems. These insights are essential for reconstructing past ocean conditions, understanding present-day ecosystem functioning, and projecting future changes in marine environments.

Europe's ambitious new nature restoration legislation aims to restore ecosystems to enhance nature conservation, biodiversity, and climate change mitigation efforts. Resilient ecosystems with high biodiversity demonstrate reciprocal relationships between physical processes and biotic components, which act as "ecosystem engineers" and are considered Nature-based Solutions. However, little is known about the presence and environmental functions of ecosystem engineers prior to their eradication or decline in heavily human-modified European landscapes, a knowledge gap that significantly hampers restoration initiatives. Promising new restoration approaches like rewilding or stage 0 approaches will struggle to succeed without a comprehensive understanding of the original, natural state of these ecosystems and their human modification. Here, we aim at collecting studies using e.g. sedimentary ancient DNA (sedaDNA) - but also other new and exciting palaeoecological proxies or the modelling of natural processes - as tools for analyzing sediments with the goal to reveal how biota and humans are influencing past ecosystem dynamics and vice versa. We invite studies that reconstruct past ecosystems, their drivers and feedbacks, including the reconstruction of human-modified and natural states, or the co-evolution of physical and biotic-driven processes over a Holocene time-scale. Additionally, we encourage work that considers how these studies can support practitioners to enable the implementation of Europe's largest natural restoration scheme.

This session aims to bring together a diverse group of scientists who are interested in how life and planetary processes have co-evolved over geological time, from the Precambrian to the Phanerozoic Eon. This includes studies of how changes in paleoenvironments have influenced the evolution of complex life - including animals, plants, and marine ecosystems - and how, in turn, biological innovations have reshaped Earth system processes. We seek to link fossil records to paleo-Earth processes, highlighting the interplay between biological evolution and tectonic, magmatic, and surface processes and explore how alternating greenhouse-icehouse climates have influenced biodiversity and ecosystem structure.
As an inherently multi-disciplinary subject, we aspire to better understand the complex coupling of biogeochemical cycles and life, the links between mass extinctions and their causal geological events, how fossil records shed light on ecosystem drivers over deep time, and how tectono-geomorphic processes impact biodiversity patterns at global or local scales. We aim to understand our planet and its biosphere through both observation- and modelling-based studies. We also invite contributions on general exoplanet-life co-evolution.

Skeletal remains, like shells, ossicles, corals, bones, or fish otoliths, are valuable archives of physical, chemical, or paleogenetic information, helping us understand ecological and environmental changes over periods ranging from decades to millennia, whether on land or in the ocean. This session invites researchers who employ these archives to reconstruct changes in species and ecosystems in relation to climate variability and/or human impacts across both the deep time and the recent past. We encourage contributions that focus on biotic interactions, species and community dynamics, sclerochronology, isotope geochemistry, trait-based analyses, morphometric approaches, and ancient DNA/sedimentary DNA, in particular conservation-oriented case studies that combine data from modern biota and fossil remains. Complementary paleoecological archives—such as biogeochemical and isotopic signatures from sedimentary succession or archaeological middens—are also welcome, primarily when they document histories of environmental disturbance and its ecological consequences. We also welcome paleobiogeographic reconstructions that explore range shifts, corridor/barrier dynamics, and distributional disequilibria to inform how species’ spatial patterns have responded to past environmental change. In conclusion, by examining long-term records, we can gain insights into the potential consequences of present-day environmental stressors and climate change, reconstruct past dynamics of species and ecosystem changes, including extinction, recovery, and biogeographic shifts, and thus obtain valuable insights that can help us sketch the near-future trajectories of contemporary ecosystems.

Micropaleontological data provide unique insights into the dynamics and tipping points of past environments and climate through changes in the fossil record, such as assemblage composition, morphology, and evolutionary patterns. Micropaleontology lies at the heart of biostratigraphy and provides a fundamental tool for reconstructing and stratigraphically constraining past changes in the Earth system. Our session aims to gather a broad spectrum of micropaleontologists to showcase recent advances in applying micropaleontological data in paleoenvironmental, paleoclimatological, and stratigraphic research in both marine and terrestrial settings.
We invite contributions from the field of micropaleontology that focus on the development and application of microfossils (including, but not limited to, coccolithophores, diatoms, dinoflagellates, foraminifera, ostracods, radiolarians, and pollen) as proxies for paleoenvironmental and paleoclimatological reconstructions and tools for stratigraphic correlation. We particularly encourage the submission of multi-proxy approaches, merging micropaleontological information with geochemical and paleobiological information. The application of microfossils as stratigraphic markers and advancing multivariate statistical techniques with a focus on microfossil assemblages is encouraged.