Mantle upwellings are an important component of the Earth’s convective system that can cause volcanism and anomalies in surface topography. Upwellings can rise from thermal boundary layers as hot “mantle plumes”. Alternatively, they can be the response to upper-mantle convective flow, subduction, or rifting. Clearly, different mechanisms sustain mantle upwellings of various temperature, vigour and composition, causing characteristic signals that can potentially be imaged using geophysical data, as well as expressed in the geochemistry and petrology of related magmatism.

This session invites contributions that focus on mantle upwellings from geophysics, geochemistry, and modelling perspectives. Our aim is to bring together constraints from multiple disciplines to understand the origin and dynamics of mantle upwellings, as well as their potential to trigger mantle melting, create volcanism, generate ore deposits, and build dynamic topography.

Co-organized as GMPV2.8/PS1.13/SM4.12/TS9.4
Convener: Maxim Ballmer | Co-conveners: Maria Tsekhmistrenko, Catherine Chauvel, Sebastien Pilet, Catherine A. Rychert, Karin Sigloch, Bernhard Steinberger, Vincent Strak
| Thu, 11 Apr, 10:45–12:30
Room -2.32
| Attendance Fri, 12 Apr, 10:45–12:30
Hall X2

Thursday, 11 April 2019 | Room -2.32

Chairperson: Tsekhmistrenko, Pilet, Ballmer, Chauvel
10:45–11:00 |
| solicited
Peter E. van Keken, Ross Maguire, Jeroen Ritsema, Tim Jones, Nathan Sime, and Miki Nakajima
11:00–11:15 |
| Highlight
John Tarduno and Richard Bono
11:15–11:30 |
Miriam Christina Reiss and Maureen Long
11:30–11:45 |
| solicited
| Highlight
Maelis Arnould, Nicolas Coltice, and Nicolas Flament
11:45–12:00 |
| Highlight
Curtis Williams, Sujoy Mukhopadhyay, Maxwell Rudolph, and Barbara Romanowicz
12:15–12:30 |
| Highlight
Juliane Dannberg, Rene Gassmöller, and Charles E Lesher