Unknown
PANGAEA
In:
Supplement to: Gieskes, Joris M; Sirocky, Frank X; LaKind, Judy (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
Publication Date:
2023-06-27
Description:
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.
Keywords:
73-519; 73-520; 73-521; 73-521A; 73-522; 73-523; 73-524; Alkalinity, total; Ammonium; Calcium; Chlorine; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg73; Lithium; Longitude of event; Magnesium; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; South Atlantic/CANYON; South Atlantic/HILL; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/VALLEY; Strontium; Sulfate
Type:
Dataset
Format:
text/tab-separated-values, 225 data points
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