Ingo Sonder


Ingo Sonder.

Ingo Sonder


Ingo Sonder



physical volcanology: processes, experiments explosive and non-explosive magma-water interaction, explosive volcanic processes, volcanic mass flows, magma physics, heat transfer, molten fuel coolant interaction (MFCI), thermal granulation


PhD, Geosciences, University of Wurzburg, Germany – 2010

Research Interests

Experiments On Crater And Diatreme Formation

Experiments creating meter scale maar-diatreme subsurface structures to investigate their formation processes. 

Explosive Magma-Water Interaction

Setup of a molten fuel coolant (MFCI) based explosive magma-water interaction experiment.

Recent Publications

G. A. Valentine & I. Sonder, 2018: Facilitating Field-Scale Experiments in Volcano Hazards. Eos, 99, doi: 10.1029/2018eo109237 .

I. Sonder, A. G. Harp, A. H. Graettinger, P. Moitra, G. A. Valentine, R. Büttner & B. Zimanowski, 2018: Meter-Scale Experiments on Magma-Water Interaction. J. Geophys. Res. Solid Earth, 1, doi: 10.1029/2018jb015682 .

P. Johnson, G. A. Valentine, P. H. Stauffer, C. S. Lowry, I. Sonder, B. A. Pulgarín, C. C. Santacoloma & A. Agudelo, 2018: Groundwater drainage from fissures as a source for lahars. Bull. Volcanol., 80, doi: 10.1007/s00445-018-1214-4 .

P. Moitra, I. Sonder & G. A. Valentine, 2018: Effects of size and temperature-dependent thermal conductivity on the cooling of pyroclasts in air. Geochem. Geophys. Geosyst., 19, doi: 10.1029/2018GC007510 .

G. A. Valentine, J. D. L. White, P.‑S. Ross, A. H. Graettinger & I. Sonder, 2017: Updates to Concepts on Phreatomagmatic Maar-Diatremes and Their Pyroclastic Deposits. Front. Earth Sci., 5, doi: 10.3389/feart.2017.00068 .

A. H. Graettinger, G. A. Valentine & I. Sonder, 2016: Recycling in debris-filled volcanic vents. Geology, doi: 10.1130/G38081.1 .

B. Oddsson, M. T. Gudmundsson, I. Sonder, B. Zimanowski & A. Schmid, 2016: Experimental studies of heat transfer at the dynamic magma ice/water interface, application to subglacially emplaced lava. Journal of Geophysical Research: Solid Earth, doi:10.1002/2016JB012865 .

É. Macorps, A. H. Graettinger, G. A. Valentine, P.‑S. Ross, J. D. L. White & I. Sonder, 2016: The effects of the host-substrate properties on maar-diatreme volcanoes: experimental evidence. Bull. Volcanol., 78, doi: 10.1007/s00445-016-1013-8 .

A. H. Graettinger, G. A. Valentine & I. Sonder, 2015: Circum-crater variability of deposits from discrete, laterally and vertically migrating volcanic explosions: experimental evidence and field implications. J. Volcanol. Geotherm. Res., 308, doi: 10.1016/j.jvolgeores.2015.10.019 .

A. H. Graettinger, G. A. Valentine, I. Sonder, P.‑S. Ross & J. D. L. White, 2015: Facies distribution of ejecta in analog tephra rings from experiments with single and multiple subsurface explosions. Bull. Volcanol., 77, doi: 10.1007/s00445-015-0951-x .

G. A. Valentine, A. H. Graettinger, É. Macorps, P.‑S. Ross, J. D. L. White, É. Döhring & I. Sonder, 2015: Experiments with vertically and laterally migrating subsurface explosions with applications to the geology of phreatomagmatic and hydrothermal explosion craters and diatremes. Bull. Volcanol., 77, doi: 10.1007/s00445-015-0901-7 .

I. Sonder, A. H. Graettinger & G. A. Valentine, 2015: Scaling multiblast craters: general approach and application to volcanic craters. J. Geophys. Res. Solid Earth, 120, doi: 10.1002/2015JB012018 .