Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3747
AuthorsJulia, J.* 
Herrmann, R. B.* 
Ammon, C.* 
Akinci, A.* 
TitleEvaluation of Deep Sediment Velocity Structure in the New Madrid
Issue Date2004
Series/Report no.1/94(2004)
URIhttp://hdl.handle.net/2122/3747
Keywordsreceiver functions, mississipi embayment
velocity tructure
Subject Classification04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
AbstractDetailed knowledge of the physical properties of the sediments filling the Mississippi Embayment has proven critical to both unravel the tectonic framework operating in the region and assess the seismic hazards posed by the New Madrid Seismic Zone. In this article we show that independent geotechnical estimates for Pand S-wave velocities are compatible with a sedimentary model of K-feldspar clasts embeded in water, and we test its validity by modeling receiver functions at a number of broadband stations. By constraining the bulk sediment thicknesses beneath each station from independent reflection profiling estimates, we have been able to recover the depth to the top of the Cretaceous from the receiver function data at individual stations. Our receiver function modeling thus provides confidence in the velocity and density structures extrapolated from in situ geotechnical measurements in the Upper Mississippi Embayment.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
JULIAETAL_BSSA.pdfshort note355.98 kBAdobe PDFView/Open    Request a copy
Show full item record

Page view(s)

55
checked on Apr 29, 2017

Download(s)

19
checked on Apr 29, 2017

Google ScholarTM

Check