Natural gamma ray, electrical resistivity, and sonic logs at Sites U1353, U1354, and U1351. Correlations between seismic sequence boundaries (U10-U13) and logs are highlighted in yellow intervals. In particular, U10 through U12 are distinct features in the logging data, characterized by low gamma radiation, high resistivity, and increased Vp and Vs, that can be correlated across the three shelf sites. Sonic logs from all three sites have been preliminarily reprocessed (Guerin, postcruise research). GR – gamma radiation; IDPH – deep induction resistivity log.