EGU General Assembly 2007
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  Information - TS8.3 Tectonics and magmatism during continental rifting and break-up

Event Information
The processes involved in thinning of the continental lithosphere

and the emergence of new steady-state oceanic spreading systems

are not well understood. Similarly, the reasons for the lack of

magmatism on some margins and excess magmatism on others are still

a matter of much debate. In this session, we propose to join observations

and models that help describe and understand the processes of

continental thinning, break-up and emergence of new ocean lithosphere.

Key points that we propose to discuss include the mechanisms of

thinning, the symmetry/asymmetry of continental margin pairs and

magmatic systems, and the variations in mantle thermal and chemical

properties leading to the observed variations in rifting to drifting styles.

Researchers working in magmatic and amagmatic rifts,

onshore and offshore, as well as those working in modern analogues of

ancient continent-ocean transitions are invited to participate.

Preliminary List of Solicited Speakers
Wilfried Jokat (AWI)
Othmar Müntener (University of Lausanne)
Jason Phipps Morgan (Cornell University)
Gezahegn Yirgu (Addis Ababa University)


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