“…The CR has a three‐velocity‐layer oceanic structure. Layer 1 with a thickness of 0.2 to 0.9 km and velocities ranging from 2.4 km/s at the top to 2.8 km/s at the base, has been drilled 300 km west of the trench at DSDP site 157 [ van Andel , 1973]. Cores recovered at this site revealed 431 m of Neogene and Quaternary sediments with sonic velocity reaching 2.5 km/s overlying Neogene basalts with mean sonic velocity of 4.5 km/s [ van Andel , 1973].…”
Section: Velocity Structurementioning
confidence: 99%
“…Layer 1 with a thickness of 0.2 to 0.9 km and velocities ranging from 2.4 km/s at the top to 2.8 km/s at the base, has been drilled 300 km west of the trench at DSDP site 157 [ van Andel , 1973]. Cores recovered at this site revealed 431 m of Neogene and Quaternary sediments with sonic velocity reaching 2.5 km/s overlying Neogene basalts with mean sonic velocity of 4.5 km/s [ van Andel , 1973]. Layer 2 with a thickness of 2.8 km and mean velocities of 4.8 km/s at the top and 5.5 km/s at the base, comparable to those of oceanic layer 2b, is well resolved in the central part of our model (Figure 3).…”
“…The CR has a three‐velocity‐layer oceanic structure. Layer 1 with a thickness of 0.2 to 0.9 km and velocities ranging from 2.4 km/s at the top to 2.8 km/s at the base, has been drilled 300 km west of the trench at DSDP site 157 [ van Andel , 1973]. Cores recovered at this site revealed 431 m of Neogene and Quaternary sediments with sonic velocity reaching 2.5 km/s overlying Neogene basalts with mean sonic velocity of 4.5 km/s [ van Andel , 1973].…”
Section: Velocity Structurementioning
confidence: 99%
“…Layer 1 with a thickness of 0.2 to 0.9 km and velocities ranging from 2.4 km/s at the top to 2.8 km/s at the base, has been drilled 300 km west of the trench at DSDP site 157 [ van Andel , 1973]. Cores recovered at this site revealed 431 m of Neogene and Quaternary sediments with sonic velocity reaching 2.5 km/s overlying Neogene basalts with mean sonic velocity of 4.5 km/s [ van Andel , 1973]. Layer 2 with a thickness of 2.8 km and mean velocities of 4.8 km/s at the top and 5.5 km/s at the base, comparable to those of oceanic layer 2b, is well resolved in the central part of our model (Figure 3).…”
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