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Earth, Planets and Space

Table 2 In situ velocities, V p/V s, and Poisson's ratio estimated from core experiments

From: Seismic imaging and velocity structure around the JFAST drill site in the Japan Trench: low V p, high V p/V s in the transparent frontal prism

Sample

Depth (mbsf)

V p (km/s)

V s (km/s)

V p/ V s

Poisson's ratio

Core4R

690.4

2.00

0.88

2.28

0.38

Core6R

704.3

2.23

1.08

2.08

0.35

Core7R

713.2

2.15

1.05

2.05

0.34

Core8R

720.8

2.09

N/A

N/A

N/A

Core15R

817.5

2.35

1.10

2.14

0.36

Core16R

818.5

2.48

1.00

2.48

0.40

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