Synthetic seismograms are derived from a combination of laboratory and downhole measurements of density and velocity data collected from Holes 1149A and 1149B during Ocean Drilling Program Leg 185. The close match between single-channel seismic data obtained at Site 1149 and the synthetic seismogram facilitates core depth to traveltime correlation and is used to adjust laboratory measurements of velocity to in situ values. The two most prominent reflections are shown to correspond to the interface between pelagic clay and shallowest chert and to the top of oceanic crust. The correlation of physical and seismic stratigraphy at Site 1149 forms the basis for future regional-scale investigations of the sedimentary and volcanic history of the Nadezhda Basin, northwest Pacific.
1Abrams, L.J., 2002. Correlation among core, logging, and seismic data at Site 1149 in the Nadezhda Basin. In Ludden, J.N., Plank, T., and Escutia, C. (Eds.), Proc. ODP, Sci. Results, 185 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/185_SR/001/001.htm>. [Cited YYYY-MM-DD]
2University of North Carolina, Center for Marine Science, One Marvin Moss Lane, Wilmington NC 28409, USA. abramsl@uncwil.edu
Initial receipt: 28 August 2001
Acceptance: 31 May 2002
Web publication:
6 September 2002
Ms 185SR-001