PETROCHRO workshop series (2014-2019)

• PETROCHRON-2019 SPAIN Workshop “Modeling Local Phase Equilibria – An introduction to Theriak-Domino, XMapTools and Bingo-Antidote”, August 17-18 2019, Barcelona (Spain). [Website]
• PETROCHRO-2019 GERMANY Workshop “Melting, modelling, dating the crust”, June 3-5 2019, Potsdam (Germany). [Website]
• PETROCHRO-2018 FRANCE Workshop, 18-20 September 2018, Sète (France).
• PETROCHRO-2018 US Workshop “Quantitative Compositional Mapping of Geological Materials using XMapTools”, August 11-12 2018, Boston (Massachusett, USA). [Website]
• PETROCHRO-2018 BRAZIL Short-course “Quantitative compositional mapping thermodynamic modeling and petrochronology”, 29-31 January, Belo Horizonte (Brazil).
• PETROCHRO-2017 RiMG US Shortcourse “Petrochronology: Methods & Applications”, October 20-21 2017, Seattle (Washington, USA). [Website]
• PETROCHRO-2017 RiMG EU Shortcourse “Petrochronology: Methods & Applications”, April 22-23 2017, Hotel NH Danube City (Vienna, Austria).
• PETROCHRO-2016 Private workshop “BINGO-ANTIDOTE: recent improvements in thermodynamic modeling”, 27-29 June 2016, Institute of Geological Sciences, University of Bern (Switzerland).
• PETROCHRO-2015 EMU-SFMC workshop “Compositional micro-mapping using XMapTools”, 8-10 June 2015, Institute of Earth and Environment Science, University of Potsdam (Germany).
• PETROCHRO-2014 workshop “Thermobarometry in low-grade metamorphic rocks: Insights from thermodynamic modeling”, 20-22 October 2014, Nice (France).

Course description

Equilibrium thermodynamics has played a central role in the investigation and quantification of various metamorphic processes, providing simultaneously a robust physico-chemical framework and efficient modeling strategies to calculate mineral stability relations within the Earth’s lithosphere. However, the main issue of any equilibrium model is the tacit assumption that equilibrium was achieved at a given stage of its metamorphic history and then preserved. As most of the metamorphic minerals exhibit compositional zoning, it is obvious that equilibrium is only achieved locally and that metastable relics can be preserved throughout a metamorphic cycle. An alternative strategy to the traditional modeling tools is to use local bulk compositions for testing the assumption of equilibrium at a given stage. The routine application of this technique requires an efficient method for quantitative compositional mapping (software XMapTools), a Gibbs energy minimizer (Theriak-Domino) and a computer model coupling the two techniques (Bingo-Antidote).

This two-day workshop is designed as a beginner course for XMapTools, Theriak-Domino and Bingo-Antidote. Participants will be introduced to each software solution and learn how to use it routinely. It will involve a series of lectures of tutorials from developers and experts exploring large variety of concepts (equilibrium/disequilibrium), ingredients (thermodynamics databases) and modeling tools (forward, inverse and iterative models). This course will provide an important foundation accessible to high-level undergraduate students, graduate students, and professional researchers who are using or planning to use petrological modeling in their own studies.

Day 1

• 8h30 – 9h00 Introduction (Pierre Lanari)
• 9h00 – 10h00 Quantitative compositional mapping and data reduction using XMapTools (Pierre Lanari)
• 10h00 – 12h30 Tutorial: XMapTools (Pierre Lanari)
• 13h30 – 14h30 Thermodynamic modelling using Theriak-Domino (Pierre Lanari)
• 14h30 – 17h00 Tutorial: Theriak-Domino (Pierre Lanari)

Day 2

• 9h00 – 10h30 Forward, inverse and iterative thermodynamic models in petrology – an introduction to Bingo-Antidote (Pierre Lanari)
• 11h00 – 12h30 Tutorial: Bingo-Antidote Standalone (Pierre Lanari)
• 13h30 – 16h30 Tutorial: Bingo-Antidote GUI in XMapTools (Pierre Lanari)
• 16h30 – 17h30 Discussion & Conclusion.

Day 1

• 8h45 – 9h00 Welcome address and logistic info (Silvio Ferrero & Pierre Lanari)
• 9h00 – 9h45 Did it melt or not? Tracking melting events using microstructures (Silvio Ferrero)
• 9h45 – 10h30 Chemistry of crustal melts: nature, models and experiments (Omar Bartoli)
• 11h00 – 12h30 News and views on host-inclusion elastic geothermobarometry (Matteo Alvaro & Mattia Mazzucchelli)
• 14h30 – 15h30 Tutorial: optical microscope and melted rocks (Silvio Ferrero & Omar Bartoli)
• 15h30 – 16h30 Tutorial: P calculation on single mineral (Matteo Alvaro & Mattia Mazzucchelli)

Day 2

• 9h00 – 10h30 Insights from forward and inverse modelling of the anatectic crust (Chris Yakymchuk & Jillian Kendrick)
• 11h00 – 12h30 Modelling local equilibria in metamorphic rocks using quantitative compositional maps (Pierre Lanari & Erik Duesterhoeft)
• 14h00 – 15h00 Tutorial: playing with models – part 1 (Chris Yakymchuk & Jillian Kendrick)
• 15h00 – 16h00 Tutorial: playing with models – An introduction to Bingo-Antidote (Erik Duesterhoeft & Pierre Lanari)

Day 3

• 9h00 – 10h30 Dating processes in high-grade metamorphic rocks (Tanya Ewing)
• 11h00 – 12h30 The evolving continental crust: contributions from the accessory mineral archive (Emilie Bruand)
• 14h30 – 15h30 Tutorial: From dates to ages – plotting data and calculating robust ages from U–Pb geochronology (Tanya Ewing)
• 15h30 – 16h30 Tutorial: Good manners for trace element analyses by LA-ICPMS and hunting accessories in thin sections (Emilie Bruand)

We sincerely thank all the participants of the workshop PETROCHRO19 Melting, modelling, dating the crust. We thrust you enjoyed your time in Potsdam.

Silvio, Pierre, Matteo, Omar, Emilie, Erik, Tanya, Jill, Mattia and Chris

Day 1

• 09:00 – 10:00: An introduction to quantitative compositional mapping in petrology and to XMapTools software (Pierre Lanari)
• 10:00 – 10:30: How to get started (Pierre Lanari, Mahyra Tedeschi, Laura Airaghi)
• 11:00 – 13:00: X-ray map corrections and multi-channel classification including the Binary module (Pierre Lanari, Mahyra Tedeschi)
• 14:00 – 15:30: Analytical standardization (Laura Airaghi, Pierre Lanari)
• 16:00 – 17:30: Local bulk composition estimates (Mahyra Tedeschi, Pierre Lanari).

Day 2

• 09:00 – 10:30: Structural formulas; empirical & semi-empirical thermobarometry; XMapTools’ chemical modules (Pierre Lanari & Mahyra Tedeschi & Laura Airaghi)
• 11:00 – 13:00: Trace element mapping by LA-ICP-MS: Data collection, processing and image creation strategies (Tom Raimondo)
• 14:00 – 15:30: Trace element mapping by LA-ICP-MS: Advanced image processing modules (Tom Raimondo)
• 16:00 – 17:30: Other application examples, discussion and conclusion (Pierre Lanari).

We sincerely thank all the participants of the pre-Goldschmidt workshop PETROCHRO-2018. We hope you enjoyed your time in Boston.

Pierre, Laura, Tom & Mahyra

Day 1

• 08h30 – Introduction (Mahyra Tedeschi)
• 09h00 – An introduction to petrochronology (Pierre Lanari)
• 10h30 – Local bulk composition effects on mineral assemblages (Pierre Lanari)
• 11h30 – Example of application: Reconstruction of multiple P-T-t stages (Mahyra Tedeschi)
• 13h30 – An introduction to (a) compositional mapping and (b) XMapTools software (Pierre Lanari)
• 14h30 – Practical X1: Multi-channel classification and bias correction (Pierre Lanari, Mahyra Tedeschi, Marco)
• 17h00 – Analytical standardization (Pierre Lanari)

Day 1

• 08:20 – 08:30: Petrochronology: A brief introduction (Matthew Kohn, Martin Engi, Pierre Lanari)
• 08:30 – 09:25:  Phase relations and reaction sequences (Chris Yakymchuk, Chris Clark, and Richard White)
• 09:25 – 10:20:  Bulk composition effects on mineral parageneses (Pierre Lanari and Martin Engi)
• 10:40 – 11:35: Diffusion (Matt Kohn and Sarah Penniston-Dorland)
• 11:35 – 12:30: LA-ICP-MS and LA-SS (Andrew Kylander-Clark)
• 13:30 – 02:25: Electron microprobe (Mike Williams and Mike Jercinovic)
• 14:25 – 15:20: TIMS (Blair Schoene and Ethan Baxter)
• 15:40 – 14:35: Igneous zircon and baddeleyite (Blair Schoene on behalf of Urs Schaltegger and Josh Davies)
• 16:35  – 17:30: Detrital zircon – the Hadean (Mark Harrison, Beth Ann Bell, and Patrick Boehnke)

Day 2

• 08:00 – 08:55: REE minerals: monazite, allanite, xenotime and apatite (Martin Engi)
• 08:55 – 09:50: Rutile (Matthijs Smit on behalf of Thomas Zack and Ellen Kooijman)
• 10:10 – 11:05: Garnet (Ethan Baxter, Mark Caddick, and Besim Dragovic)
• 11:05 – 12:00: Titanite (Matt Kohn)

Day 1

• 8h00 – 8h45 Welcome of the participants
• 8h45 – 9h00 Introduction Pierre Lanari & Matt Kohn
• 9h00 – 9h45 Phase Relations, Reaction Sequences and Petrochronology Chris Clark
• 9h45 – 10h30 Local Bulk Composition Effects on Metamorphic Mineral Assemblages Pierre Lanari
• 10h30 – 11h00 Coffee break
• 11h00 – 11h45 Diffusion: Obstacles and Opportunities in Petrochronology Matt Kohn
• 11h45 – 12h30 Chronometry and Speedometry of Magmatic Processes using Chemical Diffusion in Olivine, Plagioclase and Pyroxenes Ralf Dohmen
• 12h30 – 14h00 Lunch break
• 14h00 – 14h45 Zircon: The Metamorphic Mineral (Part 1) Daniela Rubatto
• 14h45 – 15h30 Zircon: The Metamorphic Mineral (Part 2) Daniela Rubatto
• 15h30 – 16h00 Coffee break
• 16h00 – 16h45 TIMS Blair Schoene
• 16h45 – 17h30 LA-ICPMS Part 1 (analytical session) Andrew Kylander-Clark

Day 2

• 9h00 – 9h45 Garnet: A Rock-Forming Mineral Petrochronometer (Part 1) Mark Caddick & Besim Dragovic
• 9h45 – 10h30 Garnet: A Rock-Forming Mineral Petrochronometer (Part 2) Mark Caddick & Besim Dragovic
• 10h30 – 11h00 Coffee break
• 11h00 – 11h45 Titanite Petrochronology Matt Kohn
• 11h45 – 12h30 Petrology and Geochronology of Rutile Ellen Kooijman
• 12h30 – 14h00 Lunch break
• 14h00 – 14h45 Petrochronology of Zircon and Baddeleyite in Igneous Rocks: Reconstructing Magmatic Processes at High Temporal Resolution Urs Schaltegger
• 14h45 – 15h30 SIMS Axel Schmitt
• 15h30 – 16h00 Coffee break
• 16h00 – 17h00 LA-ICPMS Part 2 (data processing) Andrew Kylander-Clark
• 17h00 – 17h30 Petrochronology Based on REE-Minerals: Monazite, Allanite, Xenotime, Apatite Emilie Janots
• 17h30 – 18h00 Conclusion Pierre Lanari & Matt Kohn

We sincerely thank all the participants of this short course “Petrochronology: Methods and Applications”. We thrust you enjoyed your time in Vienna. We would like also to thank again the presenters and all the authors of the RiMG volume. We acknowledge our sponsors SELFRAG, the Geochemical Society, the European Association of Geochemistry, Cameca, the European Geoscience Union, la Société Française de Minéralogie et Cristallographie, ESI and the University of Bern for the funding of this event.

Pierre & Matt

Course description

Bingo-Antidote is a program, combing the achievements of the two petrological software packages XMapTools and Theriak-Domino. XMapTools affords information about compositional zoning in mineral and local bulk composition of domains at the thin sections scale. Theriak-Domino calculates equilibrium phase assemblages from given bulk rock composition, temperature T and pressure P conditions. Primarily Bingo-Antidote can be described as an inverse Theriak-Domino, because it uses the information provided by XMapTools to calculate the most likelihood P-T equilibrium conditions for a given metamorphic assemblage. The new strategy combines the strengths of forward Gibbs free energy minimization models with the intuitive approach of inverse thermobarometry models. Bingo-Antidote is available as a standalone program, or embedded into XMapTools using the add-on XThermoTools. 

Day 1

• Introduction to thermodynamic modeling and applications (Pierre Lanari)
• Theriak-Domino (Erik Duesterhoeft)
• XMapTools (Pierre Lanari)
• How to get started with Bingo-Antidote (Part 1)

Day 2

• How to get started with Bingo-Antidote  (Pierre Lanari)
• Application examples and tests (Part 1)

Day 3

• Application examples and tests (Part 2)
• Summary and conclusion
• Final words by Prof. Joerg Hermann

Day 1

• 8:45- Meeting at the venue: Universität Potsdam (Campus Golm), Institut für Erd- und Umweltwissenschaften, Building 27, Room 1.10
• 9:00–9:30 – Lecture [1.1]: Introduction: quantitative compositional micro-mapping, a new tool for petrological studies (A. Pourteau)
• 9:30–10:30 – Lecture [1.2]: Analytical procedure for electron microprobe X-ray mapping, optimal conditions and pitfalls to avoid (P. Lanari & S. Centrella)
• 10:30–10:45- Coffee break
• 10:45–11:15 – Practical [1.A]: How to get started: registration + download + setup
• 11:15–12:00 – Lecture [1.3]: An introduction to XMapTools (P. Lanari)
• 12:00–13:30 – Lunch break
• 13:30–15:30 – Practical [1.B]: Import X-ray data, classification and corrections (Part 1)
• 15:30–15:45 – Coffee break
• 15:30–18:00 – Practical [1.B]: Import X-ray data, classification and corrections (Part 2)
• 18:15–19:00 – Petrochronology group discussion meeting

Day 2

• 9:00–9:30 – Lecture [2.1]: How to transform semi-quantitative X-ray maps into standardized maps of oxide weight-% concentrations (P. Lanari)
• 9:30–10:30 – Practical [2.A]: Analytical standardization
  10:30–10:45- Coffee break
• 11:00–11:30 – Lecture [2.2]: Local compositions and local effective bulk (S. Centrella, C. Loury & P. Lanari)
  11:30–12:00 – Practical [2.B]: Local effective bulk compositions & local chemical variations
• 12:00–13:30 – Lunch break
• 13:30–13:45 – Lecture [2.3]: Introduction to the external function module (P. Lanari)
• 13:45–14:15 – Lecture [2.4]: Pressure-Temperature estimates using empirical and semi-empirical thermobarometers (C. Loury)
• 14:15–15:30 – Practical [2.C]: External functions, from structural formulae maps to P-T maps
• 15:30–15:45 – Coffee break
• 15:45–18:00 – Practical [2.D]: Case study of an eclogite from Himalaya—Part 1
• 19:00–??? – Dinner at the ‘Braumanufaktur Potsdam’, Forsthaus Templin (http://www.braumanufaktur.de/)

Day 3

• 9:00–10:30 – Practical [3.A]: Case study of an eclogite from Himalaya—Part 2
• 10:30–10:45 – Coffee break
• 9:00–10:30 – Practical [3.B]: Case study of an eclogite from Himalaya—Part 3
• 12:00–13:30 – Lunch break
• 13:30–15:00 – Talks by participants (Order communicated on Day 1)
• 15:00–15:15 – Coffee break
• 15:10–15:45 – Open discussion
• 15:45–16:00 – Final words by Prof. R. Oberhänsli

We sincerely thank all the participants of this EMU-SFMC workshop PETROCHRO-2015. We thrust you enjoyed your time in Potsdam. This workshop was a critical step in the testing process of the new XMapTools and we hope to be able to published it soon. We would like also to thank again the University of Potsdam and the University of Bern and the two scientific associations EMU and SFMC for the funding of this event.

Pierre, Amaury, Chloé & Stephen

Course description

Deciphering Pressure-Temperature (P-T) conditions of crystallization of low-grade metamorphic assemblages has become a critical point to better understand the geodynamic evolution of metamorphic belts. Greenschist facies metasediments show high variance assemblages essentially made of sheet silicates and quartz, mostly devoid of index mineral. In order to constrain P-T paths in such rocks, thermodynamic properties and solid solution models of phyllosilicates have been derived using both experimental and natural data. Forward (Gibbs energy minimization) and inverse (multi-equilibrium) modeling approaches can be used to derive P-T conditions of crystallization for a given assemblage. However various models have come into play, with different assumptions and limits. The goal of this course is to briefly introduce some basic concepts of thermodynamic modeling and the different models available for chlorite and K-white mica, and to highlight their benefits and limits. The course also explores some implications of local chemical variability of phyllosilicates on the P-T estimates.

Day 1

• Basic concepts of thermodynamic modeling (Pierre Lanari)
• Chlorite and K-white mica solid-solutions (Pierre Lanari)
• Existing models and open questions (Pierre Lanari)
• Chl-Qtz-H₂O thermobarometry (Pierre Lanari)
• Monte-Carlo study of uncertainties (Marco Burn)

Day 2

• Phg-Qtz-H2O thermobarometry (Pierre Lanari)
• Monte-Carlo analysis of uncertainties (Marco Burn)
• Chl-Phg-Qtz-H2O thermobarometry (Pierre Lanari)
• Examples of applications and limits (Pierre Lanari)

Day 3 

• Practical applications using participant’s own data