Faculty Candidate Seminar - Juliane Dannberg


 
05/14/2019 - 12:45pm
Location: 
Eckart 227
Event Description: 

SCRIPPS INSTITUTION OF OCEANOGRAPHY FACULTY CANDIDATE SEMINAR - 

Theoretical/Computational Geophysics

DATE:          May 14th, Tuesday, 12:45 p.m.  

LOCATION:     Eckart 227
 
SPEAKER:      Juliane Dannberg
            UC Davis
            
TITLE:          Mantle plumes, magma dynamics and hotspot volcanism: Insights from computational modeling

 


ABSTRACT:
 
Mantle melting and magma transport have been a subject of great interest in the geosciences for a long time, as they are directly related to volcanism. My research is focused on how and where magma forms in the Earth, how it moves to the surface, and how these processes relate to the observed magmatic activity at the Earth’s surface. 

I will talk about how chemical trends observed in ocean island chains, such as Hawaii, can be caused by chemical heterogeneities close to the core-mantle boundary sampled by rising mantle plumes. I will present new computational methods for modeling an evolving mineral grain size and the porous flow of magma through a deforming solid rock, and show that both processes substantially influence magma and mantle dynamics. These new methods will enable future research on the focusing of melt to mid-ocean ridges and the role that melting events play in continental break-up.

 
Faculty Host:  Ross Parnell-Turner (rparnellturner@ucsd.edu)
For more information on this event, contact: 
lcosti@ucsd.edu
Event Calendar: 
Seminars