Snyder, Glen T; Savov, Ivan P; Muramatsu, Yasuyuki (2005): Iodine and boron concentrations in pore fluids, ultramafic clasts and interstitial serpentinite mud of ODP Hole 125-779A and Site 195-1200 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.778447, Supplement to: Snyder, GT et al. (2005): Iodine and boron in Mariana serpentinite mud volcanoes (ODP Legs 125 and 195): implications for forearc processes and subduction recycling. In: Shinohara, M; Salisbury, MH; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 195, 1-18, https://doi.org/10.2973/odp.proc.sr.195.102.2005
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Abstract:
Iodine and boron were analyzed in pore fluids, serpentinized ultramafic clasts, and the serpentinized mud matrix of the South Chamorro Seamount mud volcano (Ocean Drilling Program Leg 195 Site 1200) to determine the distribution of these elements in deep forearc settings. Similar analyses of clasts and muds from the Conical Seamount mud volcano (Leg 125 Site 779) were also carried out. Interstitial pore fluids are enriched in boron and iodine without appreciable change in chloride concentration relative to seawater. Both the ultramafic clasts and the associated serpentinized mud present the highest documented iodine concentrations for all types of nonsedimentary rocks (6.3-101.7 µmol/kg). Such high iodine concentrations, if commonplace in marine forearc settings, may constitute a significant, previously unknown reservoir of iodine. This serpentinized forearc mantle reservoir may potentially contribute to the total crustal iodine budget and provide a mechanism for its recycling at convergent plate margins. Both clasts and mud show concurrent enrichments in boron and iodine, and the similarity in pore fluid profiles also suggests that these two incompatible, fluid-mobile elements behave similarly at convergent plate margins.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 15.072677 * Median Longitude: 146.158909 * South-bound Latitude: 13.783350 * West-bound Longitude: 146.002850 * North-bound Latitude: 19.512500 * East-bound Longitude: 146.696000
Date/Time Start: 1989-02-28T10:00:00 * Date/Time End: 2001-03-28T11:15:00
Event(s):
125-779A * Latitude: 19.512500 * Longitude: 146.696000 * Date/Time Start: 1989-02-28T10:00:00 * Date/Time End: 1989-03-04T03:00:00 * Elevation: -3958.0 m * Penetration: 317.2 m * Recovery: 73.24 m * Location: North Pacific Ocean * Campaign: Leg125 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 317.2 m cored; 0 m drilled; 23.1 % recovery
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
195-1200D * Latitude: 13.784060 * Longitude: 146.002850 * Date/Time Start: 2001-03-26T05:00:00 * Date/Time End: 2001-03-27T12:30:00 * Elevation: -2931.0 m * Penetration: 44.4 m * Recovery: 22 m * Location: North Pacific Ocean * Campaign: Leg195 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 21.9 m cored; 22.5 m drilled; 100.5 % 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
- Snyder, GT; Savov, IP; Muramatsu, Y (2005): (Table T1) Iodine and boron concentrations in interstitial waters of ODP Site 195-1200. https://doi.org/10.1594/PANGAEA.778443
- Snyder, GT; Savov, IP; Muramatsu, Y (2005): (Table T2) Iodine and boron concentrations in ultramafic clasts and interstitial serpentinite mud from ODP Hole 125-779A and Site 195-1200. https://doi.org/10.1594/PANGAEA.778445