Presentations (1-8 of 8)

1. Magma mixing dynamics and associated geophysical signals

   08 Oct 2015 | Contributor(s):: Chiara Paola Montagna, Antonella Longo, Paolo Papale, Matteo Bagagli

   Primitive, volatile-rich magma arrival from depth into a degassed, evolved reservoir at 3km depth is investigated. The two magmatic end-member mix very efficiently on time scales of hours. The evolution is characterized by very heterogeneous pressure variations in space and time, showing...

2. Non- Newtonian rheology of bubble- bearing magmas: effects on conduit dynamics

   12 Jun 2015 | Contributor(s):: Simone Colucci, Paolo Papale, Chiara Paola Montagna

3. Mixing- to-eruption timescales: an integrated model combining numerical simulations and high-temperature experiments with natural melts

   12 Jun 2015 | Contributor(s):: Chiara Paola Montagna, Diego Perugini, Cristina De Campos, Antonella Longo, Donald B. Dingwell, Paolo Papale

4. Time scales of mingling in shallow reservoirs

   14 Mar 2014 | Contributor(s):: Chiara Paola Montagna, Paolo Papale, Antonella Longo

   Poster presentation at Goldschmidt 2013, Florence

5. Time scales of mingling in shallow reservoirs

   14 Mar 2014 | Contributor(s):: Chiara Paola Montagna, Paolo Papale, Antonella Longo

   Presentation at VUELCO meeting in Bristol, September 2013

6. Geophysical signatures of magma chamber replenishment

   14 Mar 2014 | Contributor(s):: Antonella Longo, Chiara Paola Montagna, Gilberto Saccorotti, Paolo Papale

   Many volcanic eruptions are shortly preceded by new magma injection into a pre-existing, shallow (< 10 km) magma chamber, causing convection and mixing between the incoming and resident magmas. These processes may trigger dyke propagation and further magma rise, inducing long-term (days to...

7. Magma flow between summit and Pu`u `O`o at Kilauea volcano, Hawai`i

   14 Mar 2014 | Contributor(s):: Chiara Paola Montagna, Helge Gonnermann

   Volcanic eruptions are often accompanied by spatiotemporal migration ofground deformation, a consequence of pressure changes within magma reser-voirs and pathways. We model the propagation of pressure variations byeruptive magma withdrawal during the early episodes of the ongoing Pu‘u ̄...

8. Complex magmatic systems and geophysical signal analysis: what can we understand from inversions?

   14 Mar 2014 | Contributor(s):: Chiara Paola Montagna, G. Saccorotti, P. Papale, A. Longo

   Many volcanic eruptions are shortly preceded by new magma injection into a pre-existing, shallow (< 10 km) magma chamber, causing convection and mixing between the incoming and resident magmas. These processes may trigger dyke propagation and further magma rise, inducing long-term (days to...