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Larrasoaña, Juan C; Gràcia, Eulàlia; Garcés, Miguel; Musgrave, Robert J; Piñero, Elena; Martinez-Ruiz, Francisca C; Vega, Marta (2006): Magnetic susceptibility parameters of ODP Leg 204 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.774816, Supplement to: Larrasoaña, JC et al. (2006): Rock magnetic identification of magnetic iron sulfides and its bearing on the occurrence of gas hydrates, ODP Leg 204 (Hydrate Ridge). In: Tréhu, AM; Bohrmann, G; Torres, ME; Colwell, FS (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 204, 1-33, https://doi.org/10.2973/odp.proc.sr.204.111.2006

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Abstract:
In this paper, we present a rock magnetic data set produced for sediments from Hydrate Ridge recovered during Ocean Drilling Program Leg 204. Our data set is based on several artificially induced magnetic properties that can be used as a diagnostic for the presence of magnetic iron sulfides. The occurrence of magnetic iron sulfides within the gas hydrate stability zone in locations where gas hydrates are present seems to confirm previous interpretations linking formation of such minerals with generation of gas hydrate. Magnetic iron sulfides are also found at positions deeper than the gas hydrate stability zone. We suggest that these positions, which include intervals located just below the bottom-simulating reflector and also at deeper positions, may mark the former presence of gas hydrates that have been later dissociated as the gas hydrate stability zone moved upward through time. Detailed characterization of the magnetic iron sulfide mineralogy and comparison with sedimentological and geochemical data will be attempted for better determining the significance of magnetic iron sulfides in Hydrate Ridge sediments and their possible applications in the study of gas hydrates.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 44.578402 * Median Longitude: -125.130244 * South-bound Latitude: 44.568780 * West-bound Longitude: -125.152500 * North-bound Latitude: 44.586180 * East-bound Longitude: -125.073960
Date/Time Start: 2002-07-21T00:00:00 * Date/Time End: 2002-09-01T00:00:00
Event(s):
204-1244E * Latitude: 44.586180 * Longitude: -125.119530 * Date/Time Start: 2002-08-18T23:00:00 * Date/Time End: 2002-08-22T01:45:00 * Elevation: -893.3 m * Penetration: 250 m * Recovery: 137.73 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 135.8 m cored; 114.2 m drilled; 101.4 % recovery
204-1245B * Latitude: 44.585980 * Longitude: -125.149100 * Date/Time Start: 2002-08-06T07:15:00 * Date/Time End: 2002-08-09T15:45:00 * Elevation: -869.7 m * Penetration: 473.7 m * Recovery: 418.02 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 471.7 m cored; 2 m drilled; 88.6 % recovery
204-1246B * Latitude: 44.586060 * Longitude: -125.135380 * Date/Time Start: 2002-08-11T04:00:00 * Date/Time End: 2002-08-11T22:45:00 * Elevation: -849.4 m * Penetration: 136.7 m * Recovery: 135.38 m * Location: North Pacific Ocean * Campaign: Leg204 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 136.7 m cored; 0 m drilled; 99 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

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Datasets listed in this publication series

  1. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T1) Rock magnetic properties of ODP Hole 204-1244E. https://doi.org/10.1594/PANGAEA.774804
  2. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T2) Rock magnetic properties of ODP Hole 204-1245B. https://doi.org/10.1594/PANGAEA.774805
  3. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T3) Rock magnetic properties of ODP Hole 204-1246B. https://doi.org/10.1594/PANGAEA.774806
  4. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T4) Rock magnetic properties of ODP Hole 204-1247B. https://doi.org/10.1594/PANGAEA.774807
  5. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T5) Rock magnetic properties of ODP Hole 204-1248C. https://doi.org/10.1594/PANGAEA.774809
  6. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T6) Rock magnetic properties of ODP Site 204-1249. https://doi.org/10.1594/PANGAEA.774811
  7. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T7) Rock magnetic properties of ODP Hole 204-1250C. https://doi.org/10.1594/PANGAEA.774812
  8. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T8) Rock magnetic properties of ODP Hole 204-1251B. https://doi.org/10.1594/PANGAEA.774813
  9. Larrasoaña, JC; Gràcia, E; Garcés, M et al. (2006): (Table T9) Rock magnetic properties of ODP Hole 204-1252A. https://doi.org/10.1594/PANGAEA.774814