Publication Date:
2023-08-28
Description:
The nodules examined were sampled during the R/V Valdivia cruises VA 04, 05, 09, 13/1, and 18. The majority of these samples was taken from a region extending from 135°w to 155°W and from 5° N to 15°N. In the pelagic area investigated a very fine-grained siliceous ooze to siliceous clay is dominant. Three genetic types have been determined: type A (diagenetic) mainly on slopes or in the vicinity of seamounts; type B (Hydrogenetic) in the center of the basin regions and type C (dia-hydrogenetic) characterized by a vertical dual structure with a smooth top and and a rough gritty bottom separated by a distintive knotted botryoidal equatorial band. Chemical analyses have been performed on dried samples.
Keywords:
Aluminium oxide; Atomic absorption spectrophotometry; Calcium oxide; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Dredge; DRG; Elevation of event; Event label; Genesis; Geochemistry; Halbach1; Halbach10; Halbach2; Halbach3; Halbach4; Halbach6; Halbach7; Halbach8; Halbach9; HLB01; HLB06; HLB07; HLB10; Identification; Iron; Latitude of event; Longitude of event; Magnesium oxide; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Potassium oxide; sediment; Sediment type; Shape; Silicon dioxide; Size; Sodium oxide; Texture; Titanium dioxide; VA-04/1; VA04-113; VA04-139; VA04-157; VA04-21; VA04-57; VA-05/1; VA-05/1_13B; Valdivia (1961); Wet chemistry; Zinc
Type:
Dataset
Format:
text/tab-separated-values, 177 data points
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