2012 IRIS Workshop

Preliminary Receiver Function Analysis from the Southeastern Suture of the Appalachian Margin Experiment (SESAME)

E. Horry Parker: University of Georgia, Robert B. Hawman: University of Georgia, Karen M. Fischer: Brown University, Lara S. Wagner: University of North Carolina - Chapel Hill

Receiver function gather and stack for station W33 in the Blue Ridge Mountains of north Georgia (Gaussian width = 1.5). The delay time of ~6.5 seconds for the Ps-conversion is consistent with the preservation of a crustal root in the southern Appalachians.

Full-resolution graphics file in original format: 0090.jpg

Acknoweldgements: The Southeastern Suture of the Appalachian Margin Experiment (SESAME) is designed to investigate lithospheric deformation associated with Paleozoic terrane accretion, continental collision, and Mesozoic rifting beneath the failed South Georgia basin. Preliminary receiver function analysis suggests a gradual thickening of continental crust between the Alleghanian suture zone and Blue Ridge crustal root. We also assess the impact of Coastal Plain sediments on Zhu-Kanamori analysis.

Keywords: receiver_function

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