(Table 1) Age determination of surface sediment samples from the North Atlantic

• Main Authors: Keigwin, Lloyd D, Guilderson, Thomas P
• Format: Dataset
• Language: English
• Published: PANGAEA 2009
• Subjects: Age; 14C AMS; dated; dated material; dated standard deviation; BC; Box corer; DEPTH; sediment/rock; Elevation of event; Event label; Fraction modern carbon; error; Knorr; KNR178; KNR178-1-1-1; Laboratory code/label; Latitude of event; Longitude of event; MUC; MultiCorer; North Atlantic Ocean; OCE326-BC9; OCE326-MC13; OCE326-MC25; Reference/source; Δ14C; Antarc*; Antarctic; North Atlantic; Planktonic foraminifera
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.831644; https://doi.org/10.1594/PANGAEA.831644

Most seafloor sediments are dated with radiocarbon, and the sediment is assumed to be zero-age (modern) when the signal of atmospheric testing of nuclear weapons is present (Fraction modern (Fm) > 1). Using a simple mass balance, we show that even with Fm > 1, half of the planktonic foraminife...