Gieskes, Joris M; Sirocky, Frank X; LaKind, Judy (1984): (Table 1) Interstitial water chemistry at DSDP Leg 73 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.810948, Supplement to: Gieskes, JM et al. (1984): Interstitial water studies, Leg 73. In: Hsü, KJ; LaBrecque, JL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 73, 539-541, https://doi.org/10.2973/dsdp.proc.73.119.1984
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Abstract:
Interstitial waters obtained from a transect east from the Mid-Atlantic Ridge on progressively older oceanic crust (Sites 519-522) indicate a general absence of concentration gradients in calcium and magnesium. The lack of gradients indicates little or no exchange of these seawater constituents with the underlying basalts. Only at Site 520, where there are increases in calcium and decreases in magnesium, do reactions in the silica-enriched zone appear to have affected interstitial water composition. At Site 524, on the eastern flank of the Walvis Ridge, large changes in calcium and magnesium occur as a result of reactions involving the volcanic materials that are both dispersed in the sediment column and present in the underlying basalts.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -26.851414 * Median Longitude: -6.749271 * South-bound Latitude: -29.484200 * West-bound Longitude: -11.666200 * North-bound Latitude: -25.523300 * East-bound Longitude: 3.512300
Date/Time Start: 1980-04-22T00:00:00 * Date/Time End: 1980-05-21T00:00:00
Minimum DEPTH, sediment/rock: 5.0 m * Maximum DEPTH, sediment/rock: 349.0 m
Event(s):
73-519 * Latitude: -26.136700 * Longitude: -11.666200 * Date/Time: 1980-04-22T00:00:00 * Elevation: -3769.0 m * Penetration: 151.6 m * Recovery: 138.1 m * Location: South Atlantic/RIDGE * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 151.6 m cored; 0 m drilled; 91.1 % recovery
73-520 * Latitude: -25.523300 * Longitude: -11.185700 * Date/Time: 1980-04-28T00:00:00 * Elevation: -4207.0 m * Penetration: 456.5 m * Recovery: 69 m * Location: South Atlantic/VALLEY * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 249 m cored; 15.5 m drilled; 27.7 % recovery
73-521 * Latitude: -26.073800 * Longitude: -10.264500 * Date/Time: 1980-05-02T00:00:00 * Elevation: -4125.0 m * Penetration: 84 m * Recovery: 75.2 m * Location: South Atlantic/HILL * Campaign: Leg73 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 84 m cored; 0 m drilled; 89.5 % 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 | Gieskes, Joris M | DSDP/ODP/IODP sample designation | ||
| 6 | Depth, top/min | Depth top | m | Gieskes, Joris M | ||
| 7 | Depth, bottom/max | Depth bot | m | Gieskes, Joris M | ||
| 8 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 9 | pH | pH | Gieskes, Joris M | see reference(s) | ||
| 10 | Alkalinity, total | AT | mmol(eq)/l | Gieskes, Joris M | see reference(s) | |
| 11 | Salinity | Sal | Gieskes, Joris M | see reference(s) | Unit is g/kg | |
| 12 | Calcium | Ca | mmol/l | Gieskes, Joris M | see reference(s) | |
| 13 | Magnesium | Mg | mmol/l | Gieskes, Joris M | see reference(s) | |
| 14 | Chlorine | Cl | mg/kg | Gieskes, Joris M | see reference(s) | |
| 15 | Strontium | Sr | µmol/l | Gieskes, Joris M | see reference(s) | |
| 16 | Lithium | Li | µmol/l | Gieskes, Joris M | see reference(s) | |
| 17 | Potassium | K | mmol/l | Gieskes, Joris M | see reference(s) | |
| 18 | Sulfate | [SO4]2- | mmol/l | Gieskes, Joris M | see reference(s) | |
| 19 | Ammonium | [NH4]+ | µmol/l | Gieskes, Joris M | see reference(s) | |
| 20 | Silicon | Si | µmol/l | Gieskes, Joris M | see reference(s) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
225 data points