Dynamic Magma Evolution

Explores the complex physico-chemical processes involved in active volcanism and dynamic magmatism

Understanding the magmatic processes responsible for the chemical and textural signatures of volcanic products and igneous rocks is crucial for monitoring, forecasting, and mitigating the impacts of volcanic activity.

Dynamic Magma Evolution is a compilation of recent geochemical, petrological, physical, and thermodynamic studies. It combines field research, experimental results, theoretical approaches, unconventional and novel techniques, and computational modeling to present the latest developments in the field.

Volume highlights include:

• Crystallization and degassing processes in magmatic environments
• Bubble and mineral nucleation and growth induced by cooling and decompression
• Kinetic processes during magma ascent to the surface
• Magma mixing, mingling, and recharge dynamics
• Geo-speedometer measurement of volcanic events
• Changes in magma rheology induced by mineral and volatile content

The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.

Francesco Vetere, University of Perugia, Italy

Contributors vii

Preface

Francesco Vetere xi

 Section I: Timescales and Time-Sensor

1 Rates and timescales of magma transfer, storage, emplacement, and eruption

Maurizio Petrelli and Georg F. Zellmer 3

 2. Boundary layer melts entrapped as melt inclusions? The case of phosphorus and CO2-rich spinel-hosted melt inclusions from El Hierro, Canary Islands

Marc-Antoine Longpre, John Stix and Nobumichi Shimizu               23

 3. Apatite as a Monitor of Dynamic Magmatic Evolution at TorfajÃkull Volcanic Center, Iceland

Mary Elizabeth Connors, Tamara L. Carley and Adrian Fiege 45

 4. Control of magma plumbing systems on long term eruptive behavior of Sakurajima volcano, Japan: Insights from CSD (Crystal Size Distribution) analysis

Shimizu Yamashita and Atsuki Toramaru 85

Section II: Physical properties in magma

 5. Dynamics of volcanic systems: physical and chemical models applied to equilibrium versus disequilibrium solidification of magmas

Letizia Giuliani, Gianluca Iezzi and Silvio Mollo     100

6. Architecture of the magmatic system in the Main Ethiopian Rift

Sabrina Nazzareni, Stefano Rossi, Maurizio Petrelli and Luca Caricchi 123

 7. Rheological behavior of partly crystallized silicate melts under variable shear rate

Francesco Vetere and Francois Holtz 143

8. Investigating the crystallization kinetics via time-resolved neutron diffraction

Marco Zanatta, Caterina Petrillo and Francesco Sacchetti 152

 9. Axial melt lens dynamics at fast-spreading mid-ocean ridges

Jurgen Koepke and Chao Zhang  162

Index

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