Publication Date:
2023-08-28
Description:
For 7 pelagic sediment cores, the decrease in unsupported 130Th activity with depth in the core was used to establish the mean accumulation rate over the last 300 000 years. Because CaCO3 is a Mn-free diluent, the Mn concentration results and the sediment accumulation rate results are given on a carbonate-free basis. CaCO3 content ofcores raised from below the carbonate compensation level is taken as zero. The in situ density of water-free deep-sea cores was assumed to be 0.7 g/cm³ , this could lead in some cases to an error.
Keywords:
Accumulation rate, manganese; Accumulation rate, non carbonate; Calcium carbonate; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Elevation of event; Event label; Geochemistry; Identification; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; Neutron activation analysis; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; PC; Piston corer; RC08; RC08-83; Robert Conrad; sediment; Sediment type; see description in data abstract; V10; V10-95; V12; V12-122; V16; V16-21; V16-75; V18; V18-258; V21; V21-48; Vema; Wet chemistry
Type:
Dataset
Format:
text/tab-separated-values, 52 data points
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