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Dear colleagues: Please consider presenting at the following topical session at the 2013 GSA Annual Convention in Denver (27-30 October 2013): T185. Rifting, Drifting, and Accretion of Microcontinental Terranes: A Recipe for Accretionary Orogens GSA Structural Geology and Tectonics Division; GSA Geophysics Division; International Geological Correlation Programme Project 597; International Geological Correlation Programme Project 574 Session Description Processes of terrane transfer (rifting, drifting, accretion) are keys to global plate reconstructions, breakup of supercontinents, and opening and closing of oceans. This session will review microcontinental terranes and current research on terrane transfer. The session will focus on three points: (1) the processes associated with terrane transfer are critical to understanding the timing and mechanisms of supercontinent assembly and breakup, and the opening and closing of ocean basins; (2) documentation of the provenance of a terrane, time of rifting, duration of drift, and time and mechanism of accretion requires integration of a wide variety of geological observations and disciplines; and (3) key controversies persist about how terranes separate from the parent continent, why some are re-accreted to the margin from which they originated, while others are transferred across vast oceanic tracts and are accreted to another continent. We look forward to seeing you in Denver. Please share this with colleagues who may be interested in this session. The abstracts submission period is now open. The deadline for abstracts submittal is Tuesday, 6 August 2013 http://www.geosociety.org/meetings/2013/sessions/topical.asp?CatID=Tectonics&submit=Go Regards Bill Thomas, Cees van Staal, Brendan Murphy