Explosive caldera-forming eruptions and debris-filled vents: Gargle dynamics

Glacial influence on caldera-forming eruptions

Stress Field Control during Large Caldera-Forming Eruptions

Crustal stress field can have a significant influence on the way magma is channeled through the crust and erupted explosively at the surface. Large Caldera Forming Eruptions (LCFEs) can erupt hundreds to thousands of cubic kilometers of magma in a relatively short time along fissures under the control of a far-field extensional stress. The associated eruption intensities are estimated in the ra...

THE NILI PATEA CALDERA; EVOLVING MAGMAS, EXPLOSIVE ERUPTIONS AND HYDROTHERMAL DEPOSITS ON MARS. P. Fawdon

HYDROTHERMAL DEPOSITS ON MARS. P. Fawdon *1 , J. R. Skok 2 , M.R. Balme 1 , C. Vye-Brown 3 , D.A. Rothery 1 ,C. J. Jordan 4 1 Department of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK. MK7 6AA; [email protected], 2 Department of Geology & Geophysics, Louisiana State University, Baton Rouge, LA 70803., 3 British Geological Survey, Murchison House, West Mains Road...

A model for the origin of large silicic magma chambers: precursors of caldera-forming eruptions

The relatively low rates of magma production in island arcs and continental extensional settings require that the volume of silicic magma involved in large catastrophic caldera-forming (CCF) eruptions must accumulate over periods of 105 to 106 years. We address the question of why buoyant and otherwise eruptible highsilica magma should accumulate for long times in shallow chambers rather than e...

Fine ash content of explosive eruptions

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