Resources (1-9 of 9)

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. Timescales of mingling in shallow magmatic reservoirs

   12 Jun 2015 | Contributor(s):: Chiara Paola Montagna, paolo papale, antonella longo

   Arrival of magma from depth into shallow reservoirs has been documented as one of thepossible processes leading to eruption. Magma intruding and rising to the surface interacts with thealready emplaced, degassed magmas residing at shallower depths, leaving chemical signatures inthe erupted...

5. 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

6. 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

7. 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...

8. 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 ̄...

9. 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...