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Elderfield, Henry; Gieskes, Joris M; Baker, Paul A; Oldfield, R K; Hawkesworth, Chris J; Miller, R (1982): Chemical and isotopic compositions of deep-sea carbonate sediments and interstitial waters from DSDP Sites 30-288 and 30-289 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.707012, Supplement to: Elderfield, H et al. (1982): 87Sr/88Sr and 18O/16O ratios, interstitial water chemistry and diagenesis in deep-sea carbonate sediments of the Ontong Java Plateau. Geochimica et Cosmochimica Acta, 46(11), 2259-2268, https://doi.org/10.1016/0016-7037(82)90199-5

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Abstract:
Interstitial waters and sediments from DSDP sites 288 and 289 contain information on the chemistry and diagenesis of carbonate in deep-sea sediments and on the role of volcanic matter alteration processes. Sr/Ca ratios are species dependent in unaltered foraminifera from site 289 and atom ratios (0.0012-0.0016) exceed those predicted by distribution coefficent data (~0.0004). During diagenesis Sr/Ca ratios of carbonates decrease and reach the theoretical distribution at a depth which is identical to the depth of Sr isotopic equilibration, where 87Sr/86Sr ratios of interstitial waters and carbonates converge. Mg/Ca ratios in the carbonates do not increase with depth as found in some other DSDP sites, possibly because of diagenetic re-equilibration with interstitial waters showing decreasing Mg(2+)/Ca(2+) ratios with depth due to Ca input and Mg removal by alteration of volcanic matter.
Interstitial 18O/16O ratios increase with depth at site 289 to d18O = 0.67‰ (SMOW), reflecting carbonate recrystallization at elevated temperatures (>/= 20°C), the first recorded evidence of this effect in interstitial waters. Interstitial Sr2+ concentrations reach high levels, up to 1 mM, chiefly because of carbonate recrystallization. However, 87Sr/86Sr ratios decrease from 0.7092 to less than 0.7078, lower than for contemporaneous sea water, showing that there is a volcanic input of strontium at depth. This volcanic component is recorded in the Sr isotopic composition of recrystallized calcites. Isotopic compositions of the unrecrystallized calcites suggests that the rate of increase of the 87Sr/86Sr ratio of sea water with time has been faster since 3 my ago than in the preceding 13 my.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -2.323300 * Median Longitude: 159.616167 * South-bound Latitude: -5.972500 * West-bound Longitude: 158.511500 * North-bound Latitude: -0.498700 * East-bound Longitude: 161.825500
Date/Time Start: 1973-05-21T00:00:00 * Date/Time End: 1973-05-31T00:00:00
Event(s):
30-288 * Latitude: -5.972500 * Longitude: 161.825500 * Date/Time: 1973-05-21T00:00:00 * Elevation: -3000.0 m * Penetration: 238 m * Recovery: 50.1 m * Location: South Pacific Ocean * Campaign: Leg30 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 11 cores; 98 m cored; 0 m drilled; 51.1 % recovery
30-288A * Latitude: -5.972500 * Longitude: 161.825500 * Date/Time: 1973-05-21T00:00:00 * Elevation: -3000.0 m * Penetration: 988.5 m * Recovery: 60.9 m * Location: South Pacific Ocean * Campaign: Leg30 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 275 m cored; 9.5 m drilled; 22.1 % recovery
30-289 * Latitude: -0.498700 * Longitude: 158.511500 * Date/Time: 1973-05-31T00:00:00 * Elevation: -2206.0 m * Penetration: 1271 m * Recovery: 709.1 m * Location: South Pacific/PLATEAU * Campaign: Leg30 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 133 cores; 1270.8 m cored; 0 m drilled; 55.8 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Appendix 1) Chemical composition of interstitial waters in DSDP Holes 30-288 and 30-288A. https://doi.org/10.1594/PANGAEA.707007
  2. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Appendix 1) Chemical composition of interstitial waters in DSDP Holes 30-288 and 30-288A. https://doi.org/10.1594/PANGAEA.707011
  3. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Appendix 1) Chemical composition of interstitial waters in DSDP Hole 30-289. https://doi.org/10.1594/PANGAEA.707009
  4. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Appendix 2) Chemical composition of carbonates from DSDP Hole 30-289. https://doi.org/10.1594/PANGAEA.707010
  5. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Table 1) Sr, Ca and Mg contents and 87Sr/86Sr ratios in carbonates, foraminifera, and interstitial waters from DSDP Hole 30-289. https://doi.org/10.1594/PANGAEA.707004
  6. Elderfield, H; Gieskes, JM; Baker, PA et al. (1982): (Table 2) Oxygen and carbon isotopic compositions in carbonates and interstitial waters from DSDP Hole 30-289. https://doi.org/10.1594/PANGAEA.707005