Jenden, Peter D; Gieskes, Joris M (1983): (Table 1) Interstitial water chemistry at DSDP Leg 76 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.809833, Supplement to: Jenden, PD; Gieskes, JM (1983): Chemical and isotopic composition of interstitial water from Deep Sea Drilling Project Sites 533 and 534. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 76, 453-461, https://doi.org/10.2973/dsdp.proc.76.114.1983
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Abstract:
Low salinities and strong opposing fluctuations between chlorinity and interstitial water d18O and dD characterize the region of gas-hydrate occurrence at Site 533. In addition to the hydrate recovered from 243 m sub-bottom, thin, diffuse layers of hydrate composing about 10% of the total pore space may have been cored around 290 m. Decomposition during recovery could account for the high oxygen isotope value (+2.80 per mil) and low chlorinity (17.21 g/kg) observed at this depth. High alkalinity and dissolved ammonia (71 meq/l and 33 mM, respectively) indicate substantial microbial activity.
Chlorinity gradually increases with depth in the 1600-m-thick sediment column at Site 534, perhaps due to deepseated alteration-hydration reactions or to the presence of nearby evaporites. d18O and dD decrease with depth and are well correlated, suggesting that a common mechanism is fractionating both.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 30.287767 * Median Longitude: -75.040433 * South-bound Latitude: 28.343300 * West-bound Longitude: -75.381700 * North-bound Latitude: 31.260000 * East-bound Longitude: -74.869800
Date/Time Start: 1980-10-13T00:00:00 * Date/Time End: 1980-10-21T00:00:00
Minimum DEPTH, sediment/rock: 1 m * Maximum DEPTH, sediment/rock: 1405 m
Event(s):
76-533 * Latitude: 31.260000 * Longitude: -74.869800 * Date/Time: 1980-10-13T00:00:00 * Elevation: -3191.0 m * Penetration: 167.5 m * Recovery: 144.8 m * Location: North Atlantic/RIDGE * Campaign: Leg76 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 41 cores; 167.5 m cored; 0 m drilled; 86.5 % recovery
76-533A * Latitude: 31.260000 * Longitude: -74.869800 * Date/Time: 1980-10-13T00:00:00 * Elevation: -3191.0 m * Penetration: 399 m * Recovery: 209.6 m * Location: North Atlantic/RIDGE * Campaign: Leg76 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 258.7 m cored; 0 m drilled; 81 % recovery
76-534A * Latitude: 28.343300 * Longitude: -75.381700 * Date/Time: 1980-10-21T00:00:00 * Elevation: -4971.0 m * Penetration: 1666.5 m * Recovery: 612.4 m * Location: North Atlantic/BASIN * Campaign: Leg76 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1113.1 m cored; 31.5 m drilled; 55 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample code/label | Sample label | Jenden, Peter D | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 7 | pH | pH | Jenden, Peter D | see reference(s) | ||
| 8 | Alkalinity, total | AT | mmol(eq)/l | Jenden, Peter D | see reference(s) | |
| 9 | Salinity | Sal | Jenden, Peter D | see reference(s) | Unit is g/kg | |
| 10 | Calcium | Ca | mmol/l | Jenden, Peter D | see reference(s) | |
| 11 | Magnesium | Mg | mmol/l | Jenden, Peter D | see reference(s) | |
| 12 | Chlorine | Cl | mg/kg | Jenden, Peter D | see reference(s) | |
| 13 | Strontium | Sr | µmol/l | Jenden, Peter D | see reference(s) | |
| 14 | Lithium | Li | µmol/l | Jenden, Peter D | see reference(s) | |
| 15 | Potassium | K | mmol/l | Jenden, Peter D | see reference(s) | |
| 16 | Sulfate | [SO4]2- | mmol/l | Jenden, Peter D | see reference(s) | |
| 17 | Ammonium | [NH4]+ | µmol/l | Jenden, Peter D | see reference(s) | |
| 18 | Silicon | Si | µmol/l | Jenden, Peter D | see reference(s) | |
| 19 | δ18O, water | δ18O H2O | ‰ SMOW | Jenden, Peter D | Mass spectrometry | |
| 20 | δ Deuterium | δD | ‰ SMOW | Jenden, Peter D | Mass spectrometry |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
814 data points