Holocene Southern-Ocean Surface Radiocarbon Ages: Implications for Ocean Circulation and Ice-shelf Flow Rates

• Main Authors: Henderson G. M., Hall B. L., Kellogg T. B., BARONI, CARLO
• Other Authors: AGU, Henderson, G. M., Hall, B. L., Baroni, Carlo, Kellogg, T. B.
• Format: Conference Object
• Language: English
• Published: American Geophysical Union 2007
• Subjects: Ice shelve; Quaternary geochronology; Geochemical tracer; Thermohaline; Antarctica; Antarctic; Southern Ocean; Ross Sea; McMurdo Ice Shelf; Hells Gate; Black Island; Antarc*; Ice Shelf; NADW
• Online Access: http://hdl.handle.net/11568/646076; http://abstractsearch.agu.org/meetings/2007/FM/sections/PP/sessions/PP12A/abstracts/PP12A-05.html

The Southern Ocean features high surface-water 14C reservoir ages, reflecting substantial upwelling of old deep water and poor air-sea exchange. These high values complicate 14C dating in the circum-Antarctic region, and encode information about past ocean circulation (particularly the rate of deep-...