Thread: Oceanic Lithosphere and Mantle

Started: 2019-07-08 11:00:07
Last activity: 2019-07-08 11:00:07
Topics: AGU Meetings
Ying Zhou
2019-07-08 11:00:07
Dear colleagues,

We would like to draw your attention to *two sessions *on the *Oceanic
Lithosphere and Mantle* at the 2019 Fall AGU Meeting:

*DI013 - Structure and Evolution of the Oceanic Lithosphere and Mantle ---
I Observations*
The oceans represent the majority of the Earth’s surface, but because they
are inhospitable and not easily accessible, data from the marine
environment remains sparse. This sampling problem has limited our
understanding of fundamental solid-earth processes, from localized
submarine volcanism to global-scale mantle convection. New technologies and
techniques continue to enhance our ability to gather geophysical data from
the seafloor as well as the open ocean, making this an exciting frontier as
we embark on the next hundred years of Earth and Space Science research. We
invite contributions that incorporate observations from the oceans and the
seafloor, emphasizing in particular oceanic mantle tomographic and
geodynamic models, intra-plate geodynamics, volcanism, and seismicity,
subduction zone seafloor geodesy and seismology, oceanic
crustal/lithospheric structure, and chemical and physical interactions
between the ocean, crust, lithosphere, asthenosphere, and deep mantle.

*DI014. Structure and Evolution of the Oceanic Lithosphere and Mantle ---
II Modeling*
The movements of oceanic lithospheres organize flows in mantle convection
while continental lithospheres, on average, are older and less involved in
convective mass exchange. The structure and dynamics of the oceanic
lithosphere and underlying mantle are important for understanding the
Wilson cycle, hotspot tracks and oceanic plateaus. We welcome contributions
from advances in data analysis, imaging and modeling to better understand
the evolution of the oceanic domain in mantle convection. Example topics
include but are not limited to: spreading center dynamics, lithosphere and
mantle structure beneath mid-ocean ridges, heat flow measurements and
geodynamical modeling, characteristics of mantle flow and seismic
anisotropy in oceanic and continental domains, structures of the
lithosphere-asthenosphere boundary (LAB), the 410-km and 660-km
discontinuities in oceanic regions and comparative studies in continental
settings, variations in volatiles and rheology and their implications for
mantle convection, on land and offshore expeditions and the initiation of

Conveners: DI013
William Hawley,University of California Berkeley
Zachary Eilon, University of California Santa Barbara
Hiroko Sugioka, Kobe University

Conveners: DI014
Ying Zhou, Virginia Tech
Karin Sigloch, University of Oxford
Yang Shen, University of Rhode Island
Sergei Lebedev, Dublin Institute for Advanced Studies

Best Regards

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