Sedimentation rates and geochemical analysis of surface sediments from the South Atlantic
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| Format: | Dataset Open Access |
| Language: | en |
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1997
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| _version_ | 1867167661748649984 |
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| author | Nürnberg, Christine Caroline Bohrmann, Gerhard Frank, Martin Schlüter, Michael |
| author_facet | Nürnberg, Christine Caroline Bohrmann, Gerhard Frank, Martin Schlüter, Michael |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Extensive investigations of sedimentary barium were performed in the southern South Atlantic in order to assess the reliability of the barium signal in Antarctic sediments as a proxy for paleoproductivity. Maximum accumulation rates of excess barium were calculated for the Antarctic zone south of the polar front where silica accumulates at high rates. The correspondence between barium and opal supports the applicability of barium as a proxy for productivity. Within the Antarctic zone north of today's average sea ice maximum, interglacial vertical rain rates of excess barium are high, with a maximum occurring during the last deglaciation and early Holocene and during oxygen isotope chronozone 5.5. During these periods, the maximum silica accumulation was supposedly located south of the polar front. Glacial paleoproductivity, instead, was low within the Antarctic zone. North of the polar front, significantly higher barium accumulation occurs during glacial times. The vertical rain rates, however, are as high as in the glacial Antarctic zone. Therefore there was no evidence for an increased productivity in the glacial Southern Ocean. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_723566 |
| institution | PANGAEA |
| language | en |
| publishDate | 1997 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Sedimentation rates and geochemical analysis of surface sediments from the South Atlantic Nürnberg, Christine Caroline Bohrmann, Gerhard Frank, Martin Schlüter, Michael Agulhas Basin; Agulhas Ridge; Antarctic Peninsula; ANT-IX/2; ANT-IX/3; ANT-IX/4; ANT-V/4; ANT-VI/3; ANT-VIII/3; ANT-X/4; ANT-X/5; ANT-X/6; ANT-XI/2; Atka Bay; Atlantic Indik Ridge; Atlantic Ridge; AWI_Paleo; Barents Sea; Camp Norway; Cape Basin; CTD/Rosette; CTD-RO; Eastern Weddell Sea, Southern Ocean; Falkland Islands; Filchner Trough; Giant box corer; Giant gravity corer AWI; GKG; Gravity corer (Kiel type); GSL; Halley Bay; Indian-Antarctic Ridge; Islas Orcadas; Kapp Norvegia; KL; Lazarev Sea; Lyddan Island; Maud Rise; Meteor Rise; MG; MIC; MiniCorer; MUC; Multiboxcorer; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; PS10; PS10/668; PS10/672; PS10/673; PS10/675; PS10/678; PS10/684; PS10/686; PS10/690; PS10/699; PS10/701; PS10/703; PS10/707; PS10/711; PS10/719; PS10/725; PS10/738; PS10/757; PS10/762; PS10/766; PS10/778; PS10/782; PS10/784; PS10/804; PS10/816; PS10/818; PS10/820; PS10/824; PS12; PS12/242; PS12/244; PS12/247; PS12/248; PS12/250; PS12/252; PS12/271; PS12/273+276; PS12/280; PS12/284; PS12/287; PS12/289; PS12/300; PS12/302; PS12/305; PS12/310; PS12/312; PS12/319; PS12/336; PS12/338; PS12/344; PS12/348; PS12/352; PS12/364; PS12/366; PS12/374; PS12/380; PS12/382; PS12/458; PS12/486; PS12/490; PS12/492; PS12/526; PS12/534; PS12/545; PS12/551; PS12/553; PS12/555; PS12/557; PS1471-2; PS1472-4; PS1473-1; PS1474-1; PS1475-1; PS1477-1; PS1478-1; PS1480-2; PS1483-2; PS1484-2; PS1485-1; PS1486-2; PS1487-1; PS1488-1; PS1489-3; PS1490-2; PS1493-2; PS1495-1; PS1496-2; PS1498-1; PS1499-2; PS1500-2; PS1502-1; PS1506-2; PS1507-2; PS1508-2; PS1509-2; PS1572-1; PS1573-2; PS1574-1; PS1575-2; PS1576-1; PS1577-2; PS1581-2; PS1582-1; PS1584-2; PS1585-1; PS1586-2; PS1587-1; PS1590-1; PS1591-2; PS1593-1; PS1595-2; PS1596-1; PS1599-1; PS16; PS16/267; PS16/271; PS16/278; PS16/281; PS16/284; PS16/303; PS16/306; PS16/311; PS16/316; PS16/321; PS16/323; PS16/334; PS16/342; PS16/345; PS16/351; PS16/354; PS16/362; PS16/372; PS1605-3; PS1606-1; PS1609-2; PS1611-1; PS1613-2; PS1618-1; PS1619-1; PS1622-1; PS1625-1; PS1626-1; PS1635-2; PS1638-1; PS1639-1; PS1640-3; PS1645-1; PS1647-2; PS1649-1; PS1651-2; PS1652-2; PS1653-2; PS1654-1; PS1751-2; PS1752-5; PS1754-2; PS1755-1; PS1756-5; PS1756-6; PS1764-2; PS1765-1; PS1768-1; PS1768-8; PS1771-4; PS1772-6; PS1772-8; PS1773-2; PS1775-5; PS1777-7; PS1778-1; PS1779-3; PS1780-1; PS1782-6; PS1786-2; PS18; PS18/044; PS18/048; PS18/055; PS18/056; PS18/058; PS18/059; PS18/063; PS18/065; PS18/067; PS18/075; PS18/080; PS18/081; PS18/082; PS18/084; PS18/086; PS18/088; PS18/092; PS18/094; PS18/096; PS18/100; PS18/101; PS18/102; PS18/106; PS18/108; PS18/114; PS18/118; PS18/167; PS18/186; PS18/187; PS18/196; PS18/198; PS18/199; PS18/200; PS18/201; PS18/202; PS18/203; PS18/204; PS18/218; PS18/227; PS18/229; PS18/236; PS18/237; PS18/238; PS18/241; PS18/243; PS18/244; PS18/249; PS18/250; PS18/251; PS18/252; PS18/253; PS18/254; PS18/255; PS18/256; PS18/257; PS18/261; PS18/262; PS18/263; PS18/266; PS18/267; PS18 06AQANTIX_2; PS1953-1; PS1954-1; PS1957-1; PS1958-1; PS1960-1; PS1961-1; PS1963-1; PS1964-1; PS1965-1; PS1967-1; PS1969-1; PS1970-1; PS1971-1; PS1973-1; PS1974-1; PS1975-1; PS1977-1; PS1978-1; PS1979-1; PS1981-1; PS1982-1; PS1983-1; PS1985-1; PS1986-1; PS1987-1; PS1988-1; PS2020-1; PS2039-2; PS2040-1; PS2049-3; PS2050-2; PS2051-3; PS2052-3; PS2053-1; PS2054-2; PS2055-3; PS2056-2; PS2065-1; PS2072-1; PS2073-1; PS2080-1; PS2081-1; PS2082-1; PS2084-2; PS2086-3; PS2087-1; PS2091-1; PS2092-1; PS2093-1; PS2094-1; PS2095-1; PS2096-1; PS2097-1; PS2098-1; PS2099-1; PS2103-2; PS2104-1; PS2105-2; PS21 06AQANTX_4; PS2108-1; PS2109-3; PS22; PS22/280; PS22/678; PS22/679; PS22/690; PS22/712; PS22/714; PS22/717; PS22/718; PS22/721; PS22/722; PS22/727; PS22/730; PS22/737; PS22/744; PS22/747; PS22/748; PS22/751; PS22/755; PS22/758; PS22/764; PS22/769; PS22/773; PS22/776; PS22/780; PS22/783; PS22/786; PS22/790; PS22/791; PS22/797; PS22/802; PS22/803; PS22/804; PS22/805; PS22/806; PS22/810; PS22/811; PS22/812; PS22/813; PS22/814; PS22/815; PS22/816; PS22/818; PS22/823; PS22/825; PS22/826; PS22/828; PS22/829; PS22/830; PS22/832; PS22/833; PS22/834; PS22/835; PS22/837; PS22/838; PS22/840; PS22/841; PS22/842; PS22/846; PS22/849; PS22/850; PS22/851; PS22/852; PS22/853; PS22/855; PS22/857; PS22/860; PS22/872; PS22/876; PS22/879; PS22/886; PS22/891; PS22/899; PS22/902; PS22/908; PS22/911; PS22/917; PS22/941; PS22/947; PS22/956; PS22/973; PS22 06AQANTX_5; PS2230-1; PS2231-1; PS2233-1; PS2234-1; PS2235-1; PS2237-1; PS2238-1; PS2239-1; PS2240-1; PS2241-1; PS2242-1; PS2243-1; PS2244-1; PS2245-1; PS2246-1; PS2247-1; PS2248-1; PS2250-6; PS2251-1; PS2254-1; PS2256-4; PS2257-1; PS2258-1; PS2259-1; PS2260-1; PS2262-7; PS2263-1; PS2265-2; PS2266-1; PS2267-2; PS2268-6; PS2269-5; PS2270-5; PS2271-1; PS2272-1; PS2273-1; PS2275-1; PS2276-2; PS2278-5; PS2280-1; PS2283-6; PS2285-3; PS2288-1; PS2292-1; PS2293-1; PS2299-1; PS2302-2; PS2304-2; PS2305-1; PS2306-1; PS2307-2; PS2308-1; PS2312-1; PS2313-1; PS2314-1; PS2315-1; PS2316-1; PS2317-1; PS2318-1; PS2320-1; PS2325-1; PS2327-1; PS2328-1; PS2329-1; PS2330-1; PS2331-1; PS2333-1; PS2334-1; PS2335-4; PS2336-1; PS2338-1; PS2339-1; PS2341-1; PS2342-1; PS2343-1; PS2347-1; PS2350-1; PS2351-1; PS2352-1; PS2353-2; PS2354-1; PS2355-1; PS2356-1; PS2357-2; PS2361-1; PS2362-1; PS2363-1; PS2364-1; PS2365-2; PS2366-1; PS2367-1; PS2368-4; PS2369-4; PS2370-4; PS2371-1; PS2372-1; PS2374-2; PS2376-1; PS2487-2; PS2488-1; PS2489-4; PS2489-7; PS2491-5; PS2492-1; PS2493-3; PS2494-1; PS2498-2; PS2499-1; PS2501-4; PS2502-1; PS2503-1; PS2505-2; PS2506-1; PS2507-1; PS2508-1; PS2509-2; PS2511-3; PS2512-1; PS2513-1; PS2514-3; PS2515-2; PS2516-1; PS2517-5; PS2518-2; PS2519-1; PS2520-1; PS28; PS28/236; PS28/243; PS28/256; PS28/264; PS28/277; PS28/280; PS28/289; PS28/304; PS28/314; PS28/329; PS28/334; PS28/337; PS28/342; PS28/345; PS28/347; PS28/350; PS28/352; PS28/361; PS28/367; PS28/373; PS28/375; PS28/378; PS28/385; PS28/390; PS28/395; PS28/404; PS28/408; Scotia Sea, southwest Atlantic; Shona Ridge; SL; South Atlantic Ocean; South Orkney; South Sandwich; South Sandwich Basin; South Sandwich Trough; van Veen Grab; Vestkapp; VGRAB; Weddell Sea; Wegener Canyon Extensive investigations of sedimentary barium were performed in the southern South Atlantic in order to assess the reliability of the barium signal in Antarctic sediments as a proxy for paleoproductivity. Maximum accumulation rates of excess barium were calculated for the Antarctic zone south of the polar front where silica accumulates at high rates. The correspondence between barium and opal supports the applicability of barium as a proxy for productivity. Within the Antarctic zone north of today's average sea ice maximum, interglacial vertical rain rates of excess barium are high, with a maximum occurring during the last deglaciation and early Holocene and during oxygen isotope chronozone 5.5. During these periods, the maximum silica accumulation was supposedly located south of the polar front. Glacial paleoproductivity, instead, was low within the Antarctic zone. North of the polar front, significantly higher barium accumulation occurs during glacial times. The vertical rain rates, however, are as high as in the glacial Antarctic zone. Therefore there was no evidence for an increased productivity in the glacial Southern Ocean. |
| title | Sedimentation rates and geochemical analysis of surface sediments from the South Atlantic |
| topic | Agulhas Basin; Agulhas Ridge; Antarctic Peninsula; ANT-IX/2; ANT-IX/3; ANT-IX/4; ANT-V/4; ANT-VI/3; ANT-VIII/3; ANT-X/4; ANT-X/5; ANT-X/6; ANT-XI/2; Atka Bay; Atlantic Indik Ridge; Atlantic Ridge; AWI_Paleo; Barents Sea; Camp Norway; Cape Basin; CTD/Rosette; CTD-RO; Eastern Weddell Sea, Southern Ocean; Falkland Islands; Filchner Trough; Giant box corer; Giant gravity corer AWI; GKG; Gravity corer (Kiel type); GSL; Halley Bay; Indian-Antarctic Ridge; Islas Orcadas; Kapp Norvegia; KL; Lazarev Sea; Lyddan Island; Maud Rise; Meteor Rise; MG; MIC; MiniCorer; MUC; Multiboxcorer; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Piston corer (BGR type); Polarstern; PS10; PS10/668; PS10/672; PS10/673; PS10/675; PS10/678; PS10/684; PS10/686; PS10/690; PS10/699; PS10/701; PS10/703; PS10/707; PS10/711; PS10/719; PS10/725; PS10/738; PS10/757; PS10/762; PS10/766; PS10/778; PS10/782; PS10/784; PS10/804; PS10/816; PS10/818; PS10/820; PS10/824; PS12; PS12/242; PS12/244; PS12/247; PS12/248; PS12/250; PS12/252; PS12/271; PS12/273+276; PS12/280; PS12/284; PS12/287; PS12/289; PS12/300; PS12/302; PS12/305; PS12/310; PS12/312; PS12/319; PS12/336; PS12/338; PS12/344; PS12/348; PS12/352; PS12/364; PS12/366; PS12/374; PS12/380; PS12/382; PS12/458; PS12/486; PS12/490; PS12/492; PS12/526; PS12/534; PS12/545; PS12/551; PS12/553; PS12/555; PS12/557; PS1471-2; PS1472-4; PS1473-1; PS1474-1; PS1475-1; PS1477-1; PS1478-1; PS1480-2; PS1483-2; PS1484-2; PS1485-1; PS1486-2; PS1487-1; PS1488-1; PS1489-3; PS1490-2; PS1493-2; PS1495-1; PS1496-2; PS1498-1; PS1499-2; PS1500-2; PS1502-1; PS1506-2; PS1507-2; PS1508-2; PS1509-2; PS1572-1; PS1573-2; PS1574-1; PS1575-2; PS1576-1; PS1577-2; PS1581-2; PS1582-1; PS1584-2; PS1585-1; PS1586-2; PS1587-1; PS1590-1; PS1591-2; PS1593-1; PS1595-2; PS1596-1; PS1599-1; PS16; PS16/267; PS16/271; PS16/278; PS16/281; PS16/284; PS16/303; PS16/306; PS16/311; PS16/316; PS16/321; PS16/323; PS16/334; PS16/342; PS16/345; PS16/351; PS16/354; PS16/362; PS16/372; PS1605-3; PS1606-1; PS1609-2; PS1611-1; PS1613-2; PS1618-1; PS1619-1; PS1622-1; PS1625-1; PS1626-1; PS1635-2; PS1638-1; PS1639-1; PS1640-3; PS1645-1; PS1647-2; PS1649-1; PS1651-2; PS1652-2; PS1653-2; PS1654-1; PS1751-2; PS1752-5; PS1754-2; PS1755-1; PS1756-5; PS1756-6; PS1764-2; PS1765-1; PS1768-1; PS1768-8; PS1771-4; PS1772-6; PS1772-8; PS1773-2; PS1775-5; PS1777-7; PS1778-1; PS1779-3; PS1780-1; PS1782-6; PS1786-2; PS18; PS18/044; PS18/048; PS18/055; PS18/056; PS18/058; PS18/059; PS18/063; PS18/065; PS18/067; PS18/075; PS18/080; PS18/081; PS18/082; PS18/084; PS18/086; PS18/088; PS18/092; PS18/094; PS18/096; PS18/100; PS18/101; PS18/102; PS18/106; PS18/108; PS18/114; PS18/118; PS18/167; PS18/186; PS18/187; PS18/196; PS18/198; PS18/199; PS18/200; PS18/201; PS18/202; PS18/203; PS18/204; PS18/218; PS18/227; PS18/229; PS18/236; PS18/237; PS18/238; PS18/241; PS18/243; PS18/244; PS18/249; PS18/250; PS18/251; PS18/252; PS18/253; PS18/254; PS18/255; PS18/256; PS18/257; PS18/261; PS18/262; PS18/263; PS18/266; PS18/267; PS18 06AQANTIX_2; PS1953-1; PS1954-1; PS1957-1; PS1958-1; PS1960-1; PS1961-1; PS1963-1; PS1964-1; PS1965-1; PS1967-1; PS1969-1; PS1970-1; PS1971-1; PS1973-1; PS1974-1; PS1975-1; PS1977-1; PS1978-1; PS1979-1; PS1981-1; PS1982-1; PS1983-1; PS1985-1; PS1986-1; PS1987-1; PS1988-1; PS2020-1; PS2039-2; PS2040-1; PS2049-3; PS2050-2; PS2051-3; PS2052-3; PS2053-1; PS2054-2; PS2055-3; PS2056-2; PS2065-1; PS2072-1; PS2073-1; PS2080-1; PS2081-1; PS2082-1; PS2084-2; PS2086-3; PS2087-1; PS2091-1; PS2092-1; PS2093-1; PS2094-1; PS2095-1; PS2096-1; PS2097-1; PS2098-1; PS2099-1; PS2103-2; PS2104-1; PS2105-2; PS21 06AQANTX_4; PS2108-1; PS2109-3; PS22; PS22/280; PS22/678; PS22/679; PS22/690; PS22/712; PS22/714; PS22/717; PS22/718; PS22/721; PS22/722; PS22/727; PS22/730; PS22/737; PS22/744; PS22/747; PS22/748; PS22/751; PS22/755; PS22/758; PS22/764; PS22/769; PS22/773; PS22/776; PS22/780; PS22/783; PS22/786; PS22/790; PS22/791; PS22/797; PS22/802; PS22/803; PS22/804; PS22/805; PS22/806; PS22/810; PS22/811; PS22/812; PS22/813; PS22/814; PS22/815; PS22/816; PS22/818; PS22/823; PS22/825; PS22/826; PS22/828; PS22/829; PS22/830; PS22/832; PS22/833; PS22/834; PS22/835; PS22/837; PS22/838; PS22/840; PS22/841; PS22/842; PS22/846; PS22/849; PS22/850; PS22/851; PS22/852; PS22/853; PS22/855; PS22/857; PS22/860; PS22/872; PS22/876; PS22/879; PS22/886; PS22/891; PS22/899; PS22/902; PS22/908; PS22/911; PS22/917; PS22/941; PS22/947; PS22/956; PS22/973; PS22 06AQANTX_5; PS2230-1; PS2231-1; PS2233-1; PS2234-1; PS2235-1; PS2237-1; PS2238-1; PS2239-1; PS2240-1; PS2241-1; PS2242-1; PS2243-1; PS2244-1; PS2245-1; PS2246-1; PS2247-1; PS2248-1; PS2250-6; PS2251-1; PS2254-1; PS2256-4; PS2257-1; PS2258-1; PS2259-1; PS2260-1; PS2262-7; PS2263-1; PS2265-2; PS2266-1; PS2267-2; PS2268-6; PS2269-5; PS2270-5; PS2271-1; PS2272-1; PS2273-1; PS2275-1; PS2276-2; PS2278-5; PS2280-1; PS2283-6; PS2285-3; PS2288-1; PS2292-1; PS2293-1; PS2299-1; PS2302-2; PS2304-2; PS2305-1; PS2306-1; PS2307-2; PS2308-1; PS2312-1; PS2313-1; PS2314-1; PS2315-1; PS2316-1; PS2317-1; PS2318-1; PS2320-1; PS2325-1; PS2327-1; PS2328-1; PS2329-1; PS2330-1; PS2331-1; PS2333-1; PS2334-1; PS2335-4; PS2336-1; PS2338-1; PS2339-1; PS2341-1; PS2342-1; PS2343-1; PS2347-1; PS2350-1; PS2351-1; PS2352-1; PS2353-2; PS2354-1; PS2355-1; PS2356-1; PS2357-2; PS2361-1; PS2362-1; PS2363-1; PS2364-1; PS2365-2; PS2366-1; PS2367-1; PS2368-4; PS2369-4; PS2370-4; PS2371-1; PS2372-1; PS2374-2; PS2376-1; PS2487-2; PS2488-1; PS2489-4; PS2489-7; PS2491-5; PS2492-1; PS2493-3; PS2494-1; PS2498-2; PS2499-1; PS2501-4; PS2502-1; PS2503-1; PS2505-2; PS2506-1; PS2507-1; PS2508-1; PS2509-2; PS2511-3; PS2512-1; PS2513-1; PS2514-3; PS2515-2; PS2516-1; PS2517-5; PS2518-2; PS2519-1; PS2520-1; PS28; PS28/236; PS28/243; PS28/256; PS28/264; PS28/277; PS28/280; PS28/289; PS28/304; PS28/314; PS28/329; PS28/334; PS28/337; PS28/342; PS28/345; PS28/347; PS28/350; PS28/352; PS28/361; PS28/367; PS28/373; PS28/375; PS28/378; PS28/385; PS28/390; PS28/395; PS28/404; PS28/408; Scotia Sea, southwest Atlantic; Shona Ridge; SL; South Atlantic Ocean; South Orkney; South Sandwich; South Sandwich Basin; South Sandwich Trough; van Veen Grab; Vestkapp; VGRAB; Weddell Sea; Wegener Canyon |
| url | https://doi.org/10.1594/PANGAEA.723566 |