[Geodynamics] AGU Session GP017: The Origin of the Hawaiian-Emperor Bend and its Implications for Plate Motions, Polar Wander, and Plate and Mantle Dynamics
Richard G. Gordon
rgg at rice.edu
Tue Jul 19 05:44:08 AEST 2016
We encourage submissions to session GP017 of the Fall AGU meeting to be
held in San Francisco in December:
/The origin of the Hawaiian-Emperor Bend and its Implications for Plate
Motions, Polar Wander, and Plate and Mantle Dynamics/.
The welcome mat is out to geodynamicists, marine geophysicists,
geochronologists, seismologists, and--of course--paleomagnetists. Our
two invited speakers are
Dave Clague, Monterey Bay Aquarium Research Institute
Udo Barckhausen,BGR Federal Institute for Geosciences and Natural Resources
It promises to be an exciting session. Please see the full session
The Origin of the Hawaiian-Emperor Bend and its Implications for
Plate Motions, Polar Wander, and Plate and Mantle Dynamics
*Session ID#: * 13472
The Hawaiian-Emperor Bend (HEB), which marks a 60° change in strike from
the NNW-striking Emperor seamount chain to the WNW-striking Hawaiian
chain, was first thought to denote a change in Pacific plate motion. It
has alternatively been argued from global plate circuits that the HEB
instead reflects a change in motion of the Hawaiian plume. The time
near the bend may also be linked to an episode of true polar wander.
Whether the Hawaiian plume migrates slowly or rapidly has profound
implications for the structure and dynamics of mantle convection.
Recent improvements to HEB geochronology, the geomagnetic reversal time
scale, the recognition of volcanic events related a change in Pacific
plate stress near the age of the HEB, new Pacific paleomagnetic poles,
and timing and rates of spreading at Pacific plate boundaries bring
evidence to change earlier interpretations. We encourage submissions on
any and all topics related to the HEB.
Primary Convener: *Richard G Gordon*, Rice University, Houston, TX,
Conveners: *Jason Phipps Morgan*, Royal Holloway University of London,
Egham, TW20, United Kingdom and *Steven C Cande*, University of
California San Diego, La Jolla, CA, United States
*Co-Organized with: **Geomagnetism, Paleomagnetism and
* DI - Study of the Earth's Deep Interior
* OS - Ocean Sciences
* V - Volcanology, Geochemistry and Petrology
We hope to see you there!
Richard, Jason, and Steve
Richard G. Gordon
Keck Professor of Geophysics
Department of Earth Science
Houston, TX 77005 USA
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