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Petrophysics of the Melt Connectivity Transition: Petrological, Rheological, and Seismic Characterisation of the Continental Moho

Applicant Pistone Mattia
Number 168166
Funding scheme Ambizione
Research institution Department of Geology University of Georgia
Institution of higher education Institution abroad - IACH
Main discipline Geology
Start/End 01.01.2017 - 31.12.2020
Approved amount 528'744.26
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All Disciplines (3)

Discipline
Geology
Geophysics
Geochemistry

Keywords (9)

Analytical Investigations; Melt; Geophysics; Rheology; Numerical Simulations; Fieldwork; Segregation; Moho; Petrology

Lay Summary (Italian)

Lead
I continenti su cui viviamo sono generati dallo scontro di placche tettoniche e dalla fusione parziale di rocce che portano alla generazione dei magmi e, in particolare, all'estrazione dei fusi silicatici. Le radici dei continenti, rappresentate dalla Moho, sono fonderie dalle quali montagne e vulcani traggono origine grazie alla risalita dei magmi. Tuttavia nessuno dei diversi studi pubblicati ha determinato l'architettura di queste radici e le condizioni fisiche e chimiche che favoriscono l'estrazione dei fusi silicatici dalla Moho.
Lay summary

Il mio obiettivo é di adottare un approccio multidisciplinare che include l'utilizzo della petrologia ignea sostenuta dal lavoro di campagna, indagini analitiche e simulazioni numeriche. La petrologia ignea é un'indagine forensica, che consiste nell'interrogare le rocce dopo che i processi che le hanno formate sono giá conclusi da tempo. Specificatamente, propongo di campionare rocce esemplari che testimoniano l'estrazione di fusi silicatici nella Zona Ivrea-Verbano, che offre una sezione quasi completa di un orogeno comprendente la crosta, il mantello superiore, e la Moho, in una area di poche decine di chilometri quadrati. Condurró le indagini analitiche per determinare la composizione e le microstrutture delle rocce campionate all’UNIL, che offre strumentazioni analitiche di prima classe a livello mondiale. Questi dati analitici serviranno a determinare le condizioni chimiche di estrazione dei fusi silicatici. Per corroborare i risultati analitici, condurro' delle simulazioni numeriche ad alta definizione con l'utilizzo di codici numerici sviluppati all'UNIL per determinare le condizioni fisiche che favoriscono l'estrazione di fusi silicatici dalla Moho. I diversi risultati prodotti dalle indagini di campagna, laboratorio, e modellazione numerica offriranno un database prezioso per calibrare modelli geofisici esistenti, che ancora si basano su una risoluzione spaziale sismica non sufficiente a chiarire l'architettura della Moho e dei processi che ne caratterizzano l'attivita' fisica e chimica.

Direct link to Lay Summary Last update: 05.12.2016

Responsible applicant and co-applicants

Employees

Publications

Publication
A compact and flexible induction furnace for in-situ X-ray microradiograhy and computed microtomography at Elettra: characterisation and first tests
Kudrna-PrašekMarko, PistoneMattia, BakerDon, SodiniNicola, MarinoniNicoletta, LanzafameGabriele, ManciniLucia (2018), A compact and flexible induction furnace for in-situ X-ray microradiograhy and computed microtomography at Elettra: characterisation and first tests, in Journal of Synchrotron Radiation, 25, 1172-1181.
Report on the ICDP workshop DIVE (Drilling the Ivrea–Verbano zonE)
Pistone Mattia, Muntener Othmar, Ziberna Luca, Hetényi György, Zanetti Alberto (2017), Report on the ICDP workshop DIVE (Drilling the Ivrea–Verbano zonE), Copernicus Publications, Scientific Drilling.

Collaboration

Group / person Country
Types of collaboration
ISTE-UNIL - Dr. Benoît Petri Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Prof. Klaus Holliger Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Prof. Dr. Stefan Schmalholz Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Prof. Lukas P. Baumgartner Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Prof. Dr. György Hetényi Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
ISTE-UNIL - Dr. Ludovic Baron Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
Uppsala University - Dr. Bjarne Almqvist Sweden (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
ISTE-UNIL - Prof. Dr. Othmar Müntener Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Prof. Dr. Yuri Podladchikov Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ISTE-UNIL - Dr. Andrew Greenwood Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
ETH-Zurich - Dr. Alba Simona Zappone Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
University of Bayreuth - Dr. Luca Ziberna Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
CNR-Pavia - Dr. Alberto Zanetti Italy (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
2018 American Geophysical Union (AGU) Fall Meeting Poster Unravelling the eruptive timescales of a Permian supervolcano with quartz diffusion chronometry 13.12.2018 Washington, DC, United States of America Pistone Mattia;
2018 American Geophysical Union (AGU) Fall Meeting Talk given at a conference Degassing and outgassing of crystal-bearing dacite 12.12.2018 Washington, DC, United States of America Pistone Mattia;
2018 American Geophysical Union (AGU) Fall Meeting Poster Evaluating compositional layering as a source for elastic anisotropy in the lithosphere 12.12.2018 Washington, DC, United States of America Pistone Mattia;
2018 American Geophysical Union (AGU) Fall Meeting Poster Unravelling magma emplacement mechanism in the lower crust: A forensic investigation of the Mafic Complex, Ivrea-Verbano Zone (Italy) 12.12.2018 Washington, DC, United States of America Pistone Mattia;
16th Swiss Geoscience Meeting (Bern) Poster Unravelling magma emplacement mechanism in the lower crust: A forensic investigation of the Mafic Complex, Ivrea-Verbano Zone (Italy) 01.12.2018 Bern, Switzerland Pistone Mattia;
Invited Seminar at the University of Bayreuth (Germany) Individual talk Magmatic Fluid Transport from the Earth’s Crust to Volcanoes 20.11.2018 Bayreuth, Germany Pistone Mattia;
2018 The Geological Society of America (GSA) Annual Meeting Talk given at a conference Experimental vesiculation and outgassing of crystal-bearing dacite 06.11.2018 Indianapolis, Indiana, United States of America Pistone Mattia;
33rd Himalaya-Karakorum-Tibet workshop Poster Geophysical and petrological assessment of the partially molten plutons, Lhasa Block 11.09.2018 Lausanne, Switzerland Pistone Mattia;
Invited Talk at the Cities on Volcanoes (CoV) 10th Edition Talk given at a conference Experimental Vesiculation and Outgassing of Crystal-Bearing Dacite 06.09.2018 Naples, Italy Pistone Mattia;
2018 European Geophysical Union (EGU) Spring Meeting Poster Petro-rheological and geophysical characterisation of the Mafic Complex, Ivrea-Verbano Zone (Italy): A work-in-progress on the correlation of crustal lithostratigraphy and geophysical structures of the Earth's lower crust 12.04.2018 Vienna, Austria Pistone Mattia;
2018 European Geophysical Union (EGU) Spring Meeting Poster High-resolution active seismic survey across the Insubric Line 11.04.2018 Vienna, Austria Pistone Mattia;
2018 European Geophysical Union (EGU) Spring Meeting Talk given at a conference Volatiles in excess in crystallising magmas: Consequences of crystal mush degassing, outgassing, and pressurisation in the Earth’s crust 11.04.2018 Vienna, Austria Pistone Mattia;
Deep Carbon Cycling Workshop at the University of Cambridge (United Kingdom) Talk given at a conference Geochemical cycles and carbon fluxes from Large Igneous Provinces 06.04.2018 Cambridge, Great Britain and Northern Ireland Pistone Mattia;
Journées Biennales des Géosciences et de l'Environnement Talk given at a conference Le statut physique du magma avant une éruption volcanique explosive: une combinaison des experiments de laboratoire et d'atténuation sismique 14.02.2018 Lausanne, Switzerland Pistone Mattia;
Invited Talk at the 20th Journée Magmatique at ETH-Zurich Talk given at a conference Melt extraction during heating and cooling of felsic crystal mushes: An experimental study 26.01.2018 Zürich, Switzerland Pistone Mattia;
2017 American Geophysical Union (AGU) Fall Meeting Talk given at a conference South-Tibetan partially molten batholiths: geophysical characterization and petrological assessment of their origin 11.12.2017 New Orleans, Louisiana, United States of America Pistone Mattia;
2017 American Geophysical Union (AGU) Fall Meeting Talk given at a conference Melt extraction during heating and cooling of felsic crystal mushes in shallow volcanic systems: An experimental study 11.12.2017 New Orleans, Louisiana, United States of America Pistone Mattia;
Invited Department Seminar at the University of Geneva (Switzerland) Individual talk Yet it moves! Melt extraction processes during magma solidification 01.12.2017 Geneva, Switzerland Pistone Mattia;
Swiss Geoscience Meeting Poster Lhasa Block partial melt zones: matching geophysical characteristics and petrological origin 17.11.2017 Davos, Graubünden, Switzerland Pistone Mattia;
Invited Department Seminar at the State University of Milan (Italy) (job interview for research position) Individual talk Melt extraction processes in multiphase magmas: from the Earth’s crust to volcanoes 09.11.2017 Milan, Italy Pistone Mattia;
Third SwissDrilling Day Workshop Talk given at a conference DIVE: Drilling the Ivrea Verbano zonE: workshop discussions and perspectives 13.09.2017 Bern, Switzerland Pistone Mattia;
Third Deep Carbon Observatory (DCO) Early Career Scientist Workshop 2017 Talk given at a conference Chemical and physical aspects of fluid extraction from the Earth’s crust 28.08.2017 Catania, Italy Pistone Mattia;
2017 IAVCEI Conference Talk given at a conference Heating or cooling felsic crystal mushes to extract melt? An experimental evaluation of melt extraction efficiency in shallow volcanic systems 14.08.2017 Portland, Oregon, United States of America Pistone Mattia;
Invited Seminar at the University of Uppsala, Sweden Individual talk Chemistry and physics of multiphase magmas: insights into melt extraction processes 21.03.2017 Uppsala, Sweden Pistone Mattia;
Invited Lecture Seminar at the University of Toronto (Canada) (job interview for professorship) Individual talk Chemistry and physics of multiphase magmas: insights into melt extraction processes 10.03.2017 Toronto, Canada Pistone Mattia;


Self-organised

Title Date Place
Session at the American Geophysical Union (AGU) Fall Meeting 12.12.2018 Washington, DC, United States of America

Awards

Title Year
Habilitation in Geochemistry, Mineralogy, Petrology, Volcanology, and Georesources (Education & Research Ministry of Italy): https://asn16.cineca.it/pubblico/miur/esito-abilitato/04%252FA1/2/4 2018
Outstanding Contribution in Reviewing Award by the Editorial Board of the Journal of Volcanology and Geothermal Research, Elsevier, Amsterdam, The Netherlands 2017

Abstract

The dynamics and kinetics of melt extraction from lithospheric rocks are essential to the construction of the crust, feeding volcanic eruptions, as well as maintaining a hydrosphere and atmosphere on Earth. To date, none of the diverse research studies undertook an investigation aimed at determining both chemical and physical conditions for melt extraction from the most unexplored portion of the Earth’s continental lithosphere - the Moho transition zone - where residual hydrous, aphyric melts are thought to be extracted at the melt connectivity transition at which rock strength and viscosity dramatically decrease. To date, there are controversial hypotheses that do not sufficiently explain the physical and chemical conditions for melt extraction at the Moho. Therefore, I propose a multidisciplinary project aimed at quantifying both chemical and physical aspects of melt extraction processes at the Moho. Specifically, I propose an analytical investigation of comprehensive textures and chemistries of minerals from natural rocks collected in the Ivrea-Verbano Zone, which offers an almost complete section of the continental crust down to the upper mantle. To corroborate the analytical results, I also propose to investigate the physical mechanisms of melt extraction at the Moho through numerical simulations based on existing codes. The results produced in this project will provide a critically needed data compilation to calibrate existing geophysical data and models linking rock seismic wave velocities to the presence of melts in rocks and better unravel the Moho discontinuity from a geophysical, rheological, and petrological perspective. This research will be hosted at the Institute of Earth Sciences of the University of Lausanne for 36 months.
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