Thread: 2019 AGU session: T029. Life and Death of Cratons

Started: 2019-07-12 01:34:26
Last activity: 2019-07-12 01:34:26
Topics: AGU Meetings
Jiang, Chengxin
2019-07-12 01:34:26
Dear Colleagues,

We would like to draw your attention to the following session at the 2019 AGU Fall Meeting (click this link to submit your abstract today!)

Session Title:

T029. Life and Death of Cratons: Craton Interactions with Collision, Subduction, and Volcanism – Global Perspective and the Wyoming Province as an Example

Session Description:

Cratons are characterized by Archean crust in surface observations of basement rocks and a thick mantle keel based on xenoliths and geophysical observations. To preserve this keel, its mantle must be chemically depleted for buoyancy to counteract thermal densification. However, this is often not observed, as shown by metasomatized xenoliths and seismic observations that are at odds with simple mantle structure, suggesting cratons do not always maintain their longevity. We invite contributions from geophysics, geology, geodynamics, and geochemistry addressing formation, tectonic processes and interactions, and destruction of cratons. Part of this interdisciplinary session will focus on the Wyoming province, a former craton that has since been subjected to Phanerozoic continental collision, subduction processes, a possible loss of the mantle keel or other buoyancy changes in the crust and/or mantle, and interaction with a possible hotspot in Yellowstone. We welcome field, laboratory, and numerical studies, particularly those of cross-disciplinary interest.

Note that the abstract submission site is already open and the deadline for all submissions is Wednesday, 31 July at 23:59 EDT.

If you have any questions, please feel free to contact the conveners. Thank you!

Primary convener:
Emily Chin, Scripps Institution of Oceanography

Email: e8chin<at><e8chin<at>>


Kevin Mahan, University of Colorado at Boulder

Email: mahank<at><mahank<at>>

Vera Schulte-Pelkum, University of Colorado at Boulder

Email: vera.schulte-pelkum<at><vera.schulte-pelkum<at>>

Chengxin Jiang, Harvard University

Email: chengxin_jiang<at><chengxin_jiang<at>>


Dr. Chengxin Jiang
Research Associate
Department of Earth and Planetary Science
Harvard University
20 Oxford Street, Cambridge, MA 02138
Email: chengxin_jiang<at><chengxin_jiang<at>>

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