Dear Colleagues,

Please consider submitting an abstract to the IASPEI symposium "S18 Cratonic structure, evolution and resource potential" at the IUGG meeting in Montréal in July.

You can find the session description below. The submission deadline is the 18th of February.

If relevant, please forward this email to your colleagues.

Information about the IUGG meeting are available under the following link:

http://iugg2019montreal.com/s.html

Thanks and best regards,

Christian Schiffer

S18 - Cratonic Evolution, Structure and Resource Potential

 

Convener: Christian Schiffer (UK)

Co-Conveners: Stéphane Rondenay (Norway), Andrew Schaeffer (Canada), Michael Kendall (UK), Fiona Darbyshire (Canada)

 

Description

Cratons have been formed and shaped over billions of years and are assumed to be stable over long geologic time scales. These stable cores of Earth’s continents have borne witness to and preserved an archive of past tectonic and geodynamic processes from the Archean and to present-day including the billions of years of repeated Wilson cycles: rifting, accretion, and intra-continental deformation events.

Despite the typically assumed long-lived stability of cratons, more recently we have observed that they do in fact experience more significant reworking and deformation than was previously thought, mostly along their margins, but also interestingly in their interiors. While Proterozoic-Phanerozoic orogenic and rifting events have rejuvenated craton edges, lithosphere destabilisation and delamination may eventually lead to complete or partial destruction of cratons. Furthermore, these regions are infrequently host to poorly understood, yet devastating intra-cratonic earthquakes, triggered in part by glacial unloading.

Cratons remain a key area of research, to large part due to their enigmatic evolution and billions-of-years rock record, but also, because they represent one of the key tectonic environments hosting natural resources critical for the continued development of our global economy. These resources include ores, minerals (especially diamonds), in addition to hydrocarbons trapped in intra-cratonic basins.

In this symposium, we encourage contributions from all branches of geoscience with a focus on further probing the structure, composition and evolution of the Earth’s cratons. This includes interrogations of thermal and compositional structure, processes leading to the formation and destruction of cratonic lithosphere, and the formation and stabilisation of critical resources hosted within these regions. We welcome submissions from, but not limited to, geophysics, geodynamics, tectonics, metallogeny, geochemistry, and petrology.

Prof. Michael Kendall

BGS Professor of Geophysics

University of Bristol

School of Earth Sciences

Wills Memorial Building - Queen's Road

Bristol, BS8 1RJ, UK

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+44 117 331 5126

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