REVISION 1: 1 2 Timescales of spherulite crystallization in obsidian inferred from water concentration 3 profiles 4 5

• Main Authors: Jonathan M Castro, Pierre Beck, Hugh Tuffen, Alexander R L Nichols, Donald B, Dingwell, Michael C Martin
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Krafla; Iceland
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1060.1323

We determined the kinetics of spherulite growth in obsidians from Krafla volcano, 12 Iceland. We measured water concentration profiles around spherulites in obsidian by 13 Synchotron Fourier Transform Infrared Spectroscopy.