Courtier, Anna M; Hart, David J; Christensen, Nikolas I (2004): Density, velocities and Poisson's and velocity ratios of ODP Hole 195-1200A serpentinites, South Chamorro Seamount [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.778624, Supplement to: Courtier, AM et al. (2004): Seismic properties of Leg 195 serpentinites and their geophysical implications. In: Shinohara, M; Salisbury, MH; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 195, 1-12, https://doi.org/10.2973/odp.proc.sr.195.104.2004
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Abstract:
Knowledge of seismic velocities is necessary to constrain the lithologies encountered in seismic studies. We measured the seismic velocities, both compressional and shear wave, of clasts recovered during Ocean Drilling Program Leg 195 from a serpentine mud volcano, the South Chamorro Seamount. The compressional wave velocities of these clasts vary from a lower value of 5.5 km/s to an upper value of 6.1 km/s at a confining stress of 200 MPa. The shear wave velocities vary from a lower value of 2.8 km/s to an upper value of 3.3 km/s at a confining stress of 200 MPa. The densities of the samples vary from 2548 to 2701 kg/m**3. These velocities and densities are representative of the highly serpentinized harzburgite and dunite mineralogy of the clasts. Velocities from a seismic study of the Izu-Bonin forearc wedge were used to calculate the degree of serpentinization in the forearc wedge. The seismic velocities of the forearc wedge are higher than the velocities of the clasts recovered from the South Chamorro Seamount, suggesting that the clasts are more serpentinized than the forearc wedge.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 13.783410 * Longitude: 146.003100
Date/Time Start: 2001-03-10T21:00:00 * Date/Time End: 2001-03-13T15:35:00
Event(s):
195-1200A * Latitude: 13.783410 * Longitude: 146.003100 * Date/Time Start: 2001-03-10T21:00:00 * Date/Time End: 2001-03-13T15:35:00 * Elevation: -2910.3 m * Penetration: 147.2 m * Recovery: 11.56 m * Location: North Pacific Ocean * Campaign: Leg195 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 147.2 m cored; 0 m drilled; 7.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Courtier, AM; Hart, DJ; Christensen, NI (2004): (Table T1) Density and compressional and shear velocities for ODP Hole 195-1200A serpentinites. https://doi.org/10.1594/PANGAEA.778622
- Courtier, AM; Hart, DJ; Christensen, NI (2004): (Table T2) Poisson's and compressional/shear velocity ratios of ODP Hole 195-1200A serpentinites. https://doi.org/10.1594/PANGAEA.778623