IUGG 2019 Montreal - IAVCEI Symposia

Dear IAVCEI colleague,

As many of you know from the 8th to the 18th of July, the centennial celebration of IUGG (and IAVCEI) will take place in Montreal in Canada (http://iugg2019montreal.com).

IAVCEI is responsible for a program contribution containing 21 symposia, and other several Union and joint symposia that encompass a wide range of scientific interest. All the information is directly accessible on the IUGG meeting site (http://iugg2019montreal.com/v.html). For your convenience, the IAVCEI session descriptions are also appended below. You can easily found Union and joint symposia on the website.

Please make every effort to attend this landmark in the history of the IAVCEI. Your participation will help to support the IAVCEI both scientifically and financially. Do not forget to sign in as IAVCEI member! 

ASSOCIATION SYMPOSIA [ IAVCEI ]

 

V01 – CELEBRATING 100 YEARs OF VOLCANIC ACTIVITY: 1919-2019

Convener: Patrick Allard (France)

Co-Conveners: Jan Llindsay (New Zealand), Donald Dingwell (Germany) , Raymond Cas (Australia), Lizzette Rodriguez (Puerto Rico), Michael Ort (USA), Eliza Calder (UK), Shan de Silva (USA), Roberto Sulpizio (Italy)

Description: Celebration of 100 years of IAVCEI. Only invited speakers.

 

V02 – WHEN MAGMA MEETS WATER: UNDERSTANDING THE TRIGGER, THE DYNAMICS AND THE DEPOSITS OF PHREATOMAGMATIC ERUPTIONS TO BETTER QUANTIFY THE ASSOCIATED HAZARD 

Conveners: Daniele Andronico (Italy), M. de' Michieli Vitturi (Italy)

Description: The interaction of magmatic gas and magma (fuel) with water (coolant) may generate phreatomagmatic explosions, among the most hazardous volcanic phenomena. They can precede magmatic activity or evolve into long-lasting eruptions, producing abundant tephra ranging in size from ash to bombs/blocks, which sometimes generate volcanic “structures” like maars, tuff cones, and tephra rings. The intensity of this interaction is thought due to external water availability together with efficiency and rate of the heat/energy transfer, which may occur both within the volcanic conduit and outside the eruption vent. However, short-lived, impulsive explosive events related to phreatomagmatic activity may pose higher hazards than prolonged eruptions, directly threatening people close to the vent areas and potentially causing large injuries and casualties.

In this symposium, we explore phreatomagmatic events which result in short-sequences of closely-space explosions and produce an unexpected ejection of fine- to coarse-grained products. Furthermore, in view of recent events which have taken places in extreme environments (such as Iceland and Kamchatka) or in the upper slopes of volcanoes such as Etna, we encourage contributes describing the behavior of lava in presence of ice/snow cover. In particular, we look at the ambient conditions promoting the explosive lava-snow/ice interaction, like lava thickness, effusion rate, thickness of the snow/ice layer and its type (dry/wet/porous) and temperature (close to or much lower than 0 °C).

Understanding the mechanisms and physical parameters leading to the generation of steam that expand explosively under an active lava flow or within a volcanic conduit, is a crucial step for reducing the risks to volcanologists in charge of the monitoring, but especially tourists that visit the summit of volcanoes, keeping them at proper safety distances.

 

V03 – PHREATIC AND HYDROTHERMAL ERUPTIONS: WHAT WE REALLY KNOW ABOUT TRIGGERS, MAGNITUDE, STYLES AND HAZARDS 

Convener: Cristian Montanaro (New Zealand)

Co-Conveners: Bettina Scheu (Germany), Corentin Caudron (Singapore), Shaul Hurwitz (USA)

Description: Hydrothermal or phreatic eruptions, alias steam-driven (non-magmatic) explosive events, are frequent phenomena occurring at active volcanoes, within geothermal areas and in rather pristine environments, e.g. heralding magmatic/phreatomagmatic eruptions. Circulating hydrothermal fluids may promote both pore pressure augmentation and alteration of the host-rock, with the latter process affecting the rock petrophysical properties (e.g. porosity, permeability strength). Pressure and temperature perturbations (e.g. magmatic fluids injection or landslides) may result in the near-instantaneous vaporization of pressurised hot fluids (especially water) trapped in pores and cracks within the upper parts of shallow hydrothermal system. The flashing/expansion of fluids blasts rock apart and ejects it upward and outward developing gas and mixed gas-liquid jets, pyroclastic density currents and lateral blasts, often accompanied by intense ballistic showers. These phenomena, whose violence depends on the explosivity of the fluids driving them, and on the petrophysical properties of the host-rocks, pose serious threats in areas increasingly exploited for tourism and geothermal power, or within populated areas. Due to the complex and still largely unknown interaction of the magmatic and hydrothermal systems, steam-driven eruptions are among the most sudden and unpredictable volcanic phenomena. Incomplete or missing stratigraphic records, limited understanding of explosive failure processes, absent or unclear precursors in geophysical and geochemical signals, all result in the lack of reliable scientific models to forecast locations, triggering, and magnitude of phreatic and hydrothermal eruptions.

This symposium invites contributions from a broad range of disciplines (from field geological observations to geophysical and geochemical monitoring, from physical modelling to laboratory experiments and numerical simulation) on phreatic and hydrothermal eruptions, including reports and lessons learned from recent events, to summarize our current state of knowledge on steam-driven eruptions and discuss future research directions.

 

V04 – MODELING VOLCANIC HAZARDS AND THEIR IMPACTS 

Convener: Sylvain Charbonnier (USA)

Co-Conveners: Leah Courtland (USA), Eliza Calder (UK), Chuck Connor (USA), Sébastien Biass (USA), Susanna Jenkins (Singapore), Annie Winson (Singapore), Thomas Wilson (New Zealand), Jenni Barclay (UK)

Description: Volcanic hazards include lava flows, debris flows and avalanches, pyroclastic density currents and ash/tephra fall, all of which have devastating consequences and impacts for the economy, transport and the environment. A key component to understanding the behavior and correctly evaluating the potential impacts of these physical processes is the development and implementation of accurate and usable forecast models and the study of hazard predictions and the subsequent geological event and the agreement/deviation of the two. Recent progress with analogue, statistical and numerical models has offered noteworthy insights into the behavior and resulting impacts of these hazardous events. We invite contributions from all those involved in experimental, statistical and numerical studies of volcanic hazards. This symposium aims to draw together modeling contributions in order to highlight new approaches, methodologies and results.

 

V05 – MULTIPHASE FLOW PROCESSES IN VOLCANIC ERUPTIONS: EXPERIMENTAL AND NUMERICAL INVESTIGATIONS

Convener: Eric Breard (USA)

Co-Conveners: Mattia De' Michieli Vitturi (Italy), Matteo Cerminara (Italy), Tomaso Esposti Ongaro (Italy), Joe Dufek (USA), Daniele Andronico (Italy)

Description: Our ability to forecast volcanic hazards and mitigate risks relies on understanding volcanic processes and their interactions with the substrate and atmosphere. However, volcanic processes comprise complex multiphase behaviors that involve, for instance, turbulence, from one-way up to four-way coupling, frictional stresses, compressibility, thermal non-equilibrium, making the thermo-fluid dynamic models required to simulate these processes extremely challenging to develop and validate. Aided by the development of a wide range of experiments across disciplines, significant progress in non-linear multiphase flow physics has been achieved in the past decade, while subsequent increase in computing power has allowed small-to medium size simulations to be carried out at natural scales. This symposium aims at gathering experimental investigations and multiphase numerical simulations (at all scales) that further our understanding of the physics of volcanic processes from the sub surface to aerial environments. This includes (but is not restricted to), plumes, pyroclastic currents, debris flows, lava flows.

 

V06 – LINKING VOLCANO-SEDIMENTARY FEATURES WITH ERUPTIVE PROCESSES 

Convener: Gabor Kereszturi (New Zealand)

Co-Conveners: Guilhem Amin Douillet (Germany), Gro Birkefeldt Møller Pedersen (Iceland)

Description: Volcano-genic sediments, formed in volcanic eruptions, holds important clues to reconstruct eruptive and sedimentological processes. The textural, sedimentological and physical properties of the sediment can be recorded in the field surveys and mapping, or in experiments with a great range of techniques, such visual descriptions, compass, sieving, pycnometry, digital photography, grain shape analysis and spectroscopy. This symposium welcomes contributions from broad research fields such as sedimentology, physical volcanoes and geophysics which focuses how we can fully utilize current technologies to describe and interpret pyroclastic succession and volcano-genetic sediments. The fuller understanding of moderns and ancient volcanic deposits offers new insights into eruptive processes that govern volcanic hazards.

 

V07 – FOSTERING THE INTEGRATION OF DEPOSIT AND MODELING STUDIES TO INVESTIGATE THE SUB-AERIAL PROCESSES OF EXPLOSIVE ERUPTIONS 

Convener: S. Barsotti (Iceland)

Co-Conveners: M. Pistolesi (Italy), A. Van Eaton (USA), D. Andronico (Italy), M. de' Michieli Vitturi (Italy)

Description: Understanding the dynamics of explosive eruptions is of paramount  importance for the assessment of volcanic hazard and a major key to improve our knowledge is the study of resulting pyroclastic deposits. On one side, we know that differences in properties such as grain size,

vesicularity, clast morphology and deposit geometry clearly reflect different transport and depositional processes. For example, Prof. Walker showed how grain-size characteristics and dispersal area of a pyroclastic deposit can be used to infer eruption discharge rate and intensity. On the other side, we have to face the problem that preservation of deposit is typically incomplete and, for the interpretation of such partial information about past eruptions, modeling of subaerial explosive eruptions can be extremely helpful. For example, application of inversion techniques to numerical models of ash dispersal is showing promising results. In this symposium, we encourage contributions from both field volcanologists and modelers to investigate how deposit studies can support the understanding and the modeling of volcanic processes and how modeling studies can help in the interpretation of deposit properties.

 

V08 – MULTIDISCIPLINARY STUDIES ON VOLCANIC AND IGNEOUS PLUMBING SYSTEMS

Conveners: Stephanie Burchardt (Sweden), Janine Kavanagh (UK)

Description: Since the processes that occur within the volcanic plumbing system prior to, during, and after volcanic eruptions are dynamic and complex, our attempts to understanding these processes must be multi-disciplinary. Recent years have seen successful attempts to study magma storage and transport using combinations of geological, volcanological, geophysical, geodetic, structural, petrological and geochemical methods. This symposium welcomes contributions on such multi-disciplinary studies, including e.g.

·                studies of solidified, eroded volcanic plumbing systems

·                combined petrological and geophysical reconstructions of pre-eruptive magma storage conditions

·                simulations of magma storage and/or transport using analogue and/or numerical modelling

 

V09 – THE ROLE OF LIPS IN ENVIRONMENTAL CHANGE AND BIOTIC EXTINCTIONS ON EARTH OVER GEOLOGIC TIME 

Convener: Richard Ernst  (Canada)

Co-Conveners: Mike Widdowson (UK), Simon Jowitt (USA), Ingrid-Ukstins Peate (USA)

Description: This symposium, sponsored by the Large Igneous Provinces Commission (www.largeigneousprovinces.org), focuses attention on the growing recognition that large Igneous Provinces (LIPs) and silicic LIPs (SLIPs) (Bryan & Ferrari 2013, GSAB, v. 125, p. 1053–1078; Ernst, 2014 Cambridge U. Press) can be major drivers of rapid climate change (e.g., Ernst & Youbi, 2017, PPP, v. 478, p. 30-52;  Bond & Grasby, 2017 PPP, v. 478, p. 3-29), including global warming (hothouse events), global cooling (icehouse events), anoxia, stepwise oxygenation of the atmosphere, sustained chemical attack on atmospheric chemistry and ozone destruction, acid rain and ocean acidification, enhanced hydrothermal and terrestrial nutrient fluxes, and mercury poisoning. Most dramatically, Phanerozoic mass extinction events can be temporally linked to LIP emplacement. We welcome research that investigates the role of LIPs in Phanerozoic and Precambrian climate change, particularly those that utilize the sedimentary record to monitor global environmental impact, and also research that assesses selected major LIP events (and their global environmental impact) as natural timescale boundaries in the Proterozoic.

 

V10 – PRESENT STATE OF CALDERAS 

Convener: Craig Miller (New Zealand)

Co-Conveners: Helene Le Mevel (USA), Shan de Silva (USA), Jon Stix (Canada), Nobuo Geshi (Japan), Darren Gravely (New Zealand)

Description: This symposium focuses on understanding what is the present day state of active calderas, or large magmatic systems, around the world.  Studies from mafic or silicic systems are welcome.  We seek to answer fundamental questions such as where is the magma? how much magma is there?,  what state (i.e. temperature, melt, crystal, volatile content) is it in? These questions may be answered by geophysical or geochemical studies on caldera unrest, or from studies aimed at imaging present day magma reservoirs.  We seek submissions from the geophysicists, analytic and numerical modelers, together with petrologists and geochemists, to constrain and interpret geophysical observations. The goal is to determine the hazard a caldera system poses in its present state.  A larger goal would be to create a catalogue of active systems around the world to quantify the global hazard such systems represent.

 

V11 – INTRA- AND EXTRA-CALDERA LARGE VOLUME IGNIMBRITES 

Convener: Domenico Doronzo (Spain)

Co-Conveners: Silvina Guzmán (Argentina), Claudio Scarpati (Italy)

Description: Large volume ignimbrites are a fundamental issue in geology, and particularly in volcano stratigraphy, physical volcanology, and petrology.  In this symposium, contributions from integrated investigation approaches like field observations, petrology, laboratory sedimentology, theoretical modelling, and experiments on intra- versus extra-caldera lithofacies are welcome. Besides presenting the last studies in this branch of volcanology, the main goal is to update the state of the art on large volume ignimbrites in light of recent field, experimental, and modelling advances particularly relevant in caldera settings worldwide.

 

V12 – GEOCHEMISTRY AND GEOPHYSICS OF ACTIVE CRATER LAKES

Convener: Joop Varekamp (USA)

Co-Conveners: Corentin Caudron (Singapore), Dmitri Rouwet (Italy)

Description: Active crater lakes provide the opportunity to watch inside magmatic-hydrothermal systems.

The proto-type setting of "wet volcanoes" makes crater lakes prone to phreatic eruptions. Multidisciplinary approaches, by combining geophysical and geochemical measurements, and numerical and probabilistic modelling, have recently proven to be promising means to possibly reveal precursory signals of phreatic and phreatomagmatic eruptions. Hence, this section seeks contributions on how to measure and monitor crater lakes in relation with the activity of the underlying volcanoes.

 

V13 – MONOGENETIC VOLCANISM: DIVERSITY, PROCESSES, TECTONIC CONTEXTS, RISK AND GEOHERITAGE 

Convener: Karoly Nemeth (New Zealand)

Co-Conveners: Marie-Noelle Guilbaud (Mexico), Alison Graettinger (USA), Pierre-Simon Ross (Canada), Benjamin van Wyk de Vries (France)

Description: Monogenetic volcanoes are the most common manifestation of volcanism on land, and probably under the oceans. Monogenetic volcanoes range from seemingly very simple small, single magma batch eruption products, through to larger volume, compositionally diverse eruptions with complex edifices. Monogenetic volcanic fields also reflect this diversity, ranging from widely spaced, compositionally limited fields, to closely spaced fields with a wide spread of magma types.

 

V14 – NEW APPROACHES IN GEOSITE EVALUATION AND USAGE OF VOLCANIC GEOHERITAGE IN GEOEDUCATION 

Convener: Károly Németh (New Zealand)

Co-Conveners: Ben van Wyk de Vries (France), Jon Procter (New Zealand), Cecile Olive-Garcia (France)

Description: Geoheritage studies is an emerging science developed especially over the last decade. Volcanic geoheritage research particularly evolved recently in order to provide a scientifically correct approach to describe, evaluate and promote geoheritage values of volcanic landscape, volcanic processes and volcanic hazards to various end-users and to the public. Volcanic geoheritage studies are gradually became an important element of volcanic hrisk education and in general part of the geoeducational works to understand Earth System science in various levels. The newly established IAVCEI Commission on Volcanic Geoheritage and Protected Volcanic Landscapes serves the global scientific community, linking volcano science to geoscience outreach programs. In addition, volcanic geoheritage science is developping methods and standards for objective comparison of geoheritage values for all types of volcanic sites (from active young features to ancient sites). These carry significant scientific values that can be utilized in geoeducation, geoconservation and geotourism, and resilience. Volcanic geoheritage forms fundamental parts of many recent applications and promotion of UNESCO Worlds Heritage sites and UNESCO Global Geopark programs. Volcanic geoheritage is also a valuable element of local and regional projects driven by communities to establish their geoeducational, geoconservational and geotouristic programs fit to the local and regional conservation, education and touristic programs. On the basis of this recent boom of geoheritage research, the IAVCEI Commission on Volcanic Geoheritage and Promotion of Protected Volcanic Landscapes invites the full range of researchers to share their latest research in geoheritage science. We particularly interested in to see works that: 1) target understanding the place of volcanic geoheritage in Earth System Science and disaster reduction; 2) Research that targets new methods of objective geosite evaluation; 3) application of traditional pedagogical methods for geoeducational programs to promote volcanic sciences: 4) studies intending to determine the value of volcanic geoheritage in various geotouristic programs: 5) Geoheritage and risk/resilience/ hazards and 6) the linkage of traditional volcanic geoheritage knowledge to western science and defining effective methods to provide scientifically valid information to various geoconservation projects in various scales (from local to global) and multiple cultures around the world.

 

V15 – VOLATILE CONSTRAINTS ON MAGMA PLUMBING SYSTEMS AND ERUPTION DYNAMICS AT OPEN-CONDUIT VOLCANOES

Convener: Patrick Allard (France)

Co-Conveners: Hiroshi Shinohara (Japan), John Stix (Canada)

Description: Among the 1551 volcanoes recognized to be active on Earth, only about a hundred displays continuous eruptive activity or/and persistent degassing with sizeable plume emissions, implying that their conduit remains open. Illustrative examples include Nyiragongo, Kilauea, Etna, Stromboli, Colima, Masaya, Villarica, Merapi, Asama, Sakurajima, Ambrym, Yasur, etc. These continuously active volcanoes erupt various magma types, in different tectonic settings, and their eruptive styles cover a wide range from purely effusive (e.g. lava lakes) to violently explosive. They thus offer remarkable opportunities for real-time investigations of magmatic and volcanic processes, for deciphering the dynamics of magma plumbing systems, and for the testing of new technologies and new models. Moreover, many of these volcanoes are located in densely inhabited regions of the world, which fully justifies that they be closely surveyed.

Given the key role of magmatic volatiles in the dynamics of magma ascent and volcanic eruptions, studying the composition and flux of gas emissions from these volcanoes, as well as the pressure-related behavior of volatiles dissolved in their magmas, is one important approach to broadly understand how volcanoes work. Such studies have been widely developed in recent decades on the above volcanoes, allowing great achievements. In this symposium, we invite research contributions dealing with both field measurements, laboratory analyses, and theoretical modelling of magma degassing and volcanic gas release in relation to eruptive phenomena at open-conduit volcanoes. Cutting-edge studies involving ground-based and space-borne remote sensing tools, new unmaned platforms, and high-resolution geochemical/petrological tracers are particularly welcomed. The Symposium will be organized in order to give maximum allowance to both case studies and review talks, as well as discussions.

 

V16 – FROM HIGH TO LOW-ENTHALPY: GEOTHERMAL ENERGY AT WORK

Convener: Daniele Pinti (Canada)

Co-Conveners: Clara Castro (USA), Paul Baudron (Canada), Jasmin Raymond (Canada)

Description: Geothermal energy is considered a renewable form of energy that can partially fill the increasing human demand. Yet only a few countries, located in high heat flow regions of the Earth can benefit from high-enthalpy resources to produce electricity. However, low to very low enthalpy geothermal resources are increasingly in demand, especially in cold northern countries such as Canada, Norway etc. Here, heat extracted from groundwater can be sufficient for domestic heating/cooling uses, particularly in remote areas. This symposium will be devoted to all aspects of geothermal energy, from exploration to exploitation and tools (geophysics, geochemistry, geology etc.) needed to evaluate the extent of this resource.

 

V17– LIVING WITH VOLCANOES: CHALLENGES AND BENEFITS FOR BUILDING RESILIENT AND HEALTHY SOCIETIES 

Convener: Graham Leonard (New Zealand)

Description: Volcanic risk management requires the integration of a wide range of stakeholders such as government organisations, vulnerable communities and the public, different scientific groups (academic and non-academic), private companies such as insurance, and non-governmental agencies. Given the requirement of local contingencies and the need to also align with national, and sometime international policy and frameworks (such as the ISDNR Sendai framework), the ability to effectively integrate these perspectives is vital to the effectiveness of volcanic risk management. There is increasing evidence of the need to develop more holistic and robust processes such as hazard and risk assessment strategies to negotiate the many inherent complexities. This entails the bringing together of different academic disciplinary knowledge via multi-disciplinary approaches, but also the consideration of trans-disciplinary issues that sit between disciplinary stakeholders and those stakeholders affected by volcanic risk. This symposium aims to explore state of the art research and practice surrounding both successful and unsuccessful collaboration at both multi- and trans-disciplinary levels. We invite submissions and experiences from all disciplines (especially physical sciences in the case of IUGG), because by its nature multi-disciplinary research does not fit into any one area, along with contributions from a wide range of stakeholders and from different natural hazard experiences to share lessons identified and potential solutions.

 

V18 – MAPPING VOLCANOES. METHODOLOGY AND APPLICATIONS 

Convener: Gianluca Groppelli (Italy)

Co-Conveners: Joan Martì Molist (Spain), Natalia Pardo (Colombia), Federico Lucchi (Italy), Claudia Principe (Italy)

Description: Geological maps show the distribution at the Earth’s surface of different kinds of Earth materials. But a geological map is much more than that, it is a synthesis of the knowledge on the geology of an area. It is, at the same moment, the first introduction to an area being visited, and the culmination of a geological investigation. Understanding a geological map make you able to predict what occurs at and beneath the surface, and for this reason it his of upmost importance in working on environmental, geography, archaeology, oil reservoirs, coal, aquifers, ore bodies, land subsidence, and much more. Although, geology is undergoing great changes, geological maps remain as fundamental as ever in depicting the geology of a territory. After all, they embody the very matters that set geology apart from other disciplines: dealing with real Earth materials in three dimensions and through time. Today, computer based methods are adding yet further to their power and versatility. Today, new technologies are being employed in the production of maps and in manipulating map information, and geological maps acquired new and upmost importance to promote better environmental understanding and to foster an integrated approach to the planning of future land use. This adds tremendous flexibility to the way we can use maps, but it also makes an understanding of the basic principles behind them more important than ever. This is particularly true for the geological mapping in volcanic areas. As a matter of fact, if a geological map is the basic tool for understanding the foundations of landscape, a well done geological map of a volcano has a tremendous impact on the provisional plans for the prevision and the mitigation of the effects of future eruptions. This section is focused on old and new methods of mapping volcanoes and their influence on the present-day-used holistic approach to the cartography of volcanoes. Contributions on the changing methods in producing volcanic maps (starting from old-stile maps, mainly based on lavas distribution or petrography, going up to the modern maps, based on data derived from chrono-stratigraphy and facies analysis) are welcome as well as the contribution to volcanic mapping given by historical sources, archaeological findings, structural analyses, boreholes data, and geomorphology. The utility of grouping mapped units as Eruptive units or Unconformity Bounded Stratigraphic Units, or others units typologies volcanologic maps will be an argument of interest as well as the use of Geographic Information System."

 

V19 – EXPERIMENTAL VOLCANOLOGY APPROACH TO INVESTIGATE MAGMA GENERATION, ASCENT AND ERUPTION 

Convener: Claudia Romano (Italy)

Co-Conveners: Kelly Russell, (Canada), Satoshi Okumura, (Japan), Diego Perugini (Italy), Alessandro Vona (Italy)

Description: Volcanic eruptions vary tremendously in style, scale, duration and frequency. What are the parameters controlling the occurrence and the nature of a certain eruption at a specific time and place? What are the physical and chemical processes leading to volcanic eruption from magma generation and rise, to transport along the conduit, to fragmentation and flow? Laboratory studies can help single out important aspects of very complex processes. In this symposium, we invite the experimental volcanology community to contribute to and discuss the critical issues that we face today. In this view, we welcome innovative and multidisciplinarycontributions from experimental volcanologists and petrologists who use novel and advanced techniques to unravel magma chamber and eruptive processes and their timescales.

 

V20 – RECENT ADVANCES IN VOLCANOLOGY

Conveners: Michael Ort (USA), Lizzette Rodriguez (Puerto Rico)

Description: Volcanoes produce many different types of eruptions that result in varied deposits.  In the 100 years since the foundation of IAVCEI, volcanology has grown as a science and the understanding of magmatic and eruptive processes has improved through time.  This symposium will discuss and compare these processes and products.

 

V21 – GENERATION, STORAGE AND TRANSPORT OF MAGMA IN PLUTONIC AND VOLCANIC ENVIRONMENTS

Convener: Stephan Kolzenburg (Canada)

Co-Conveners: Shane Rooyakkers (Canada), Mattia Pistone (Switzerland), Danilo Di Genova (UK), Kim Berlo (Canada), John Stix (Canada), Olivier Bachman (Switzerland)

Description: Understanding the processes that govern the generation, differentiation, emplacement, storage, ascent, and eruption of magma, the timescales over which these processes operate, and the architecture of magmatic systems are important challenges in geosciences. In recent years, major advances have been made through experimentation on natural and analogue materials, computational modelling, and field, geochemical and geophysical studies of volcanic and plutonic systems. However, because magmatic systems are highly dynamic, and involve a complex plethora of chemical and physical processes that often operate far from compositional chemical and textural equilibrium, many core questions remain open or only partially answered. Ultimately, a holistic understanding of the dynamics of such complex systems can only be obtained with multi-disciplinary approaches.

This process-oriented symposium is aimed at stimulating trans-disciplinary discussion in order to generate a holistic view of the dynamic natural processes in magmatic and volcanic environments.

·       Topics include but are not restricted to:

·       Physical properties of magmas and lavas.

·       The detection and configuration of magma storage and plumbing systems.

·       Thermal, chemical and petrological evolution of magma during storage and transport.

·       Timescales of magma assembly, storage and ascent.

·       Deformation mechanisms in magmas and host rocks during emplacement and eruption.

·       The plutonic-volcanic connection.

·       We especially solicit interdisciplinary studies investigating the chemical and physical development of magmatic and volcanic phenomena by cross-correlation of experimental- and/or modelling results with field- and/or analytical data.


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