Sessions of Interest at the Goldschmidt Conference 2015


Several sessions of interest to the GeoPRISMS Community will take place at the upcoming Goldschmidt Conference August 16-21, 2015 in Prague, Czech Republic.

The abstract submission and registration pages for Goldschmidt 2015 are now open. Abstract submission will remain open until April 2, 2015 at 23:59 (UTC) and early registration will end on June 16, 2015. Abstract submission and directions are available at: http://goldschmidt.info/2015/abstracts

(1) Session 19a: Subduction zone fluids, metamorphism and the slab-mantle interface: The trench and forearc

(2) Session 21f: Chemical Geodynamics Through Time

See below for more details.

http://goldschmidt.info/2015/program/programViewThemes

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(1) Session 19a: Subduction zone fluids, metamorphism and the slab-mantle interface: The trench and forearc

We are excited to announce session 19a at Goldschmidt 2015 in Prague. We invite you to contribute to the session.

This session focuses on geochemical, geophysical and petrologic studies that focus on the relatively shallow part of the subduction system, i.e., the slab, mantle wedge, and overriding lithosphere located between the trench and the volcanic arc, where the slab surface is located at depths of less than ~100 km. It is increasingly recognized that subduction materials are significantly processed in this region by metamorphism, metasomatism and mechanical mixing with vast implications for the physico-chemical state of subduction zones. We seek contributions from geochemistry, petrology, and geophysics, including experimental, modeling, and field studies that address the physical and chemical processes operating in the subduction system from the trench to a depth of ~100 km.

Keynote speaker: Matthias Konrad-Schmolke (University of Potsdam)

Convenors: Sarah Penniston-Dorland, Tatsuki Tsujimori, Horst Marschall

(2) Session 21f: Chemical Geodynamics Through Time

We would like to draw your attention to an interdisciplinary Goldschmidt session that seeks to understand the evolution of the Deep Earth through time.

Convenors: Matthew Jackson, Peter van Keken

Keynote: Janne Blichert-Toft (ENS Lyon, France)

Invited Speakers: Catherine Chauvel, Kaj Hoernle.

The Earth’s mantle is the largest reservoir in the Earth and it preserves an integrated record of the long-term geochemical and geodynamic evolution of the planet. Geochemical differentiation of the planet, from accretion to the present day, has modified the chemical composition of the Earth’s interior: subduction zone processes, continental crust extraction and injection of oceanic plates and sediments continuously change the mantle’s make-up. Mixing of chemical heterogeneity and the apparent long-term preservation of early Earth events require a fundamental understanding of the dynamic properties of the Earth and how these have changed over time. Geochemists are gaining new and more detailed insights into the geochemical make-up of the mantle and the early-Earth events, and subsequent geochemical processes that helped shape the current composition of the Earth, but geodynamics places fundamental constraints on possible models for the evolutionary path of the mantle. We encourage both geophysicists and geochemists to contribute to this session to build a dynamical understanding of the geochemistry of the mantle.

We look forward to seeing you in Prague!

Matt and Peter