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  • 1
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    Unknown
    Primary data sets of the hydrographic atlas of the Southern Ocean (1992)
    PANGAEA
    In:  Supplement to: Olbers, Dirk; Gouretski, Viktor V; Seiß, Guntram; Schröter, Jens (1992): The Hydrographic Atlas of the Southern Ocean. Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany, 17 pages, 82 plates, hdl:10013/epic.12913
    Details
    Publication Date: 2024-07-01
    Description: The general knowledge of the hydrographic structure of the Southern Ocean is still rather incomplete since observations particularly in the ice covered regions are cumbersome to be carried out. But we know from the available information that thermohaline processes have large amplitudes and cover a wide range of scales in this part of the world ocean. The modification of water masses around Antarctica have indeed a worldwide impact, these processes ultimately determine the cold state of the present climate in the world ocean. We have converted efforts of the German and Russian polar research institutions to collect and validate the presently available temperature, salinity and oxygen data of the ocean south of 30°S latitude. We have carried out this work in spite of the fact that the hydrographic programme of the World Ocean Circulation Experiment (WOCE) will provide more new information in due time, but its contribution to the high latitudes of the Southern Ocean is quite sparse. The modified picture of the hydrographic structure of the Southern Ocean presented in this atlas may serve the oceanographic community in many ways and help to unravel the role of this ocean in the global climate system. This atlas could only be prepared with the altruistic assistance of many colleagues from various institutions worldwide who have provided us with their data and their advice. Their generous help is gratefully acknowledged. During two years scientists from the Arctic and Antarctic Research Institute in St. Petersburg and the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven have cooperated in a fruitful way to establish the atlas and the archive of about 38749 validated hydrographic stations. We hope that both sources of information will be widely applied for future ocean studies and will serve as a reference state for global change considerations.
    Keywords: 06MT11_5; ABERG_1970-1979_USSR; ABR_1963-1966_USA; Admiral Vladimirskiy; AEL_1982_USSR; Aelita; AFE_1989_USSR; Afeliy; AFEO_1988_USSR; AFII_1951-1969_RSA; Africana (1950); AIOH_1976-1989_USSR; Akademik Berg; Akademik Fedorov; Akademik Knipovich; Akademik Korolev; Akademik Krylov; Akademik Kurchatov; Akademik Mstislav Keldysh; Akademik Shirshov; Akademik Vernadsky; AKN_1965-1981_USSR; AKO_1970-1982_USSR; AKR_1979_USSR; AKU_1971_USSR; AKU_1980-89; AKU_1982_USSR; AKU11; Alba; ALBA_1974_USSR; ALBAC_1979_Portugal; Albacora; ALBAT_1963; Albatross IV (1963); Alferez Mackinlay; ALM_1965_Portugal; Almirante; Almirante Saldanha; AMAC_1928_Argentina; AMK_1982_USSR; ANC_1989_USSR; Anchar; Andrus Iohann; ANT_1961_USSR; ANT_1967_USSR; ANT_1971_USSR; Antares; ANT-II/3; ANT-III/3; Anton Bruun; ANT-V/1; ANT-V/2; ANT-V/3; ANT-VII/4; ANT-VIII/2; AO_1989_USSR; Argo; ARGO_1960-1967_USA; Argus; ARGUS_1971-1984_USSR; ARI_1968_USSR; ARI_1976_USSR; Ariel; AS_1970-1980_USSR; ASA_1958-1977_Brazil; ATII_1967-1980_USA; ATK_1955-1964_USA; Atka; Atlant; ATLANT_1969-1980_USSR; Atlantis II (1963); Atlantniro; AUS_1977_Argentina; AUS_1978_Argentina; AUS_1982_Argentina; Austral; AV_1975_USSR; AV10; AVL_1983_USSR; BAE_1962_Brazil; Baependi; BAHC_1970_USSR; BAHC_1971_USSR; BAHC_1976_USSR; Bahchisarai; Bahia Blanca; Baird_1957-1964_USA; BBL_1957-1983_Argentina; BELO_1965-1967_USSR; Belogorsk; BENTHOS; BER_Brazil; Bertioga; BIS_1958-1968_USA; BLE_1975_USSR; BLE_1976_USSR; Blesk; Bottle, Niskin; BOU_1939_France; Bougenville; BRA_1947_Norway; Brategg; Burton Island; C.H. Davis; CA_1963_France; CAL_1963_Argentina; Cape Torrell; Capitan Armand; Capitan Canepa; CARN_1928_USA; Carnegie; CCA_1957-1986_Argentina; CDAG_1972-1979_USSR; CHA_1951_UK; Challenger; CHAR_1989_USSR; Charoit; Chatyr-Dag; CHD_1969_USA; CHER_1976_USSR; Chernomor; CHI_1960_Chile; CHUM_1965_USSR; Chumikan; Commander Robert Giraud; Comodoro Augusto Las; CORI_1978_France; CORI_1979_France; Coriolis; Cosmonauts Sea; CRG_1960_France; CT; CTO_Australia; D_1928-1930_Denmark; DAE2_1911/12; Dana; DAV_1968_USSR; Davydov; DEG_1966_Australia; Degei; DEU_1911_Germany; Deutschland; DH_1981_Argentina; DH_1982_Argentina; DH_1983_Argentina; DIA_1958_Argentina; Diaguita; DIAM_1959-1967; DIAM_1959-1967_Australia; Diamantina; DIS_1926-1951_UK; Discovery II (1929); DISII_1929-1987_UK; DM_1974_USSR; Dmitry Mendeleev; Doctor Holmberg; Drake Passage; E. Krivosheyev; EAS_USA; Eastwind; EDI_1956-1970_USA; Edisto; EKL_1972_USSR; EKL_1989_USSR; Ekliptika; EKR_1980-1984_USSR; EKV_1971_USSR; Ekvator; EL_1962-1972_USA; ELD_1962_USA; Eldorado; Eltanin; ERN_1977_USSR; Ernest Krenkel; EST_1965_Australia; Estelle Star; ESTO_1970_USSR; Estonia; EVR_1972-1981_USSR; Evrica; EX_UK; EXCEL_1959_France; Excellent; Explorer; Faddey Bellingshausen; FBE_1968-1983_USSR; FIO_1972-1979_USSR; Fiolent; FOT_1974_USSR; FOT_1978_USSR; Foton; FRAI_1970_France; France I; FUJ_1974-1983; Fuji-Maru; GAL_1950-1952_Denmark; Galathea; GAS_1960-1965_Australia; Gascoyne; GEM_1974_USSR; Gemma; General San-Martin; General Zapiola; GERO_1979_USSR; Geroyevka; GID_1980_USSR; Gidrolog; GIZ_1966-1978_USSR; Gizhiga; GL_1956-1976_USA; Glacier; GLE_1967_USA; Glennon; GOY_1970_Argentina; GOY_1972_Argentina; GOY_1973_Argentina; GOY_1974_Argentina; Goyena; Great Australian Bight; GSM_1954-1988_Argentina; GZ_1962_Argentina; GZ_1963_Argentina; GZ_1964_Argentina; GZ_1966_Argentina; HAC_1966_DDR; Hackel; Hakuho-Maru; HAM_1968-1976; Helland Hansen; Hewaibarragi-Maru; HH_1927_Norway; HMA_1973; HUD_1969_Canada; HUD_1970_Canada; HUD69_Canada; HUD70_Canada; Hudson; Idaho Standard; Indian Ocean; INV_1962_Australia; INV_1963_Australia; INV_1964_Australia; Investigator; IO_1975_Argentina; IO_1976_Argentina; IO_1977_Argentina; IO_1978_Argentina; IO_1979_Argentina; ISK_1975_USA; ISKA_1967_USSR; Iskatel; Islas Orcadas; J.D. Gilchrist; Jan Wellem; JDG_1959_RSA; JDG_1960_RSA; JSH_1961-1979_USSR; JUBI_1967_USSR; Jubileyniy; Juliy Shokalskiy; JW_1937_Germany; JW_1938_Germany; Kaiyo-Maru; Kara-Dag; KDA_1971-1981_USSR; KIA_1956_Nigeria; Kiara; KN_1972-1983_USA; Knorr; KOR_1968_USSR; Korifey; KOY_1969; KOY_1972; KOY_1979; Koyo-Maru; KRU_1988_USSR; Krusenstern; KYM_1976; LAN_1966_USSR; LAN_1967_USSR; LAN_1968_USSR; LAN_1969_USSR; LAN_1972_USSR; Langust; LAP_1949_France; LAP_1956_France; Laperouse; La Rochelle; Lena; LENA_1957_USSR; LES_1963-1976_USSR; Lesnoi; LR_1959_France; LYR_1967_USSR; Lyra; M_1924_FRG; M_1925_FRG; M_1926_FRG; M. Uritskiy; M11/5; M11/5-track; MADR_1957-1986_Argentina; Madryn; MAL_1982_USSR; Malta; Maltsevo; MAR_1963_Australia; Marelda; MARI_1979_USA; Marion; Marion Dufresne (1972); Mariya Ulyanova; MARL_1957-1977_USSR; Marlin; Mavel Taylor; MD_1976_France; MD_1981_France; MD_1985; MD_1985_France; MD_1986_France; MD_1987_France; MD_1987a_France; MD08; Meiring Naude; MEL_1972-1983_USA; Melville; Meteor_1924_FRG; Meteor_1925_FRG; Meteor_1926_FRG; Meteor (1924); Meteor (1986); Mihail Kalinin; Mihail Krupskiy; Mihail Somov; Mikhail Lomonosov; MK_1989_USSR; MKAL_1972_USSR; MKR_1980_USSR; MLO_1961-1976_USSR; MLxx; MNA_RSA; MOE_1912_Germany; MOE_1913_Germany; Monokristall; MOS_1974-1980_USSR; MSO_1975_USSR; MSO_1978_USSR; MSO_1981_USSR; MT_1972-1977_USA; MTS_1988_USSR; MUK_1960_USSR; MUK_1964_USSR; Muksun; MULY_1971_USSR; MUR_1969_USSR; MUS_1975_USSR; Musson; MYS_1978_USSR; Myslitel; Mys Ostrovskogo; N. Kuropatkin; NAT_1958-1963_RSA; Natal; NAU_1966-1968_USSR; Nauka; NDA_1981_Australia; NDA_1982_Australia; NDA_1985_Australia; NDA_1987_Australia; NEK_1974_USSR; Nekton; Nella Dan; New Liscard; NIS; NKU_1987_USSR; NLI_1962_Canada; No_ship_1901-1980_no_country; No_ship_1950-1956_France; No_ship_1955-1962_NewZealand; No_ship_1958-1986_Argentina; No_ship_1961_USA; No_ship_1964_USSR; No_ship_1975_USSR; No_ship_1980_Ireland; NORL_1973-1977_USA; Northland; Northwind; NORV_1927-1930_Norway; Norvegia; NOVOC_1980_USSR; NOVOC_1981_USSR; NOVOC_1982_USSR; NOVOC_1989_USSR; Novocheboksarsk; NOVOU_1980_USSR; NOVOU_1981_USSR; NOVOU_1982_USSR; Novoukrainka; NW_1957-1972_USA; Ob; Ob_1956-1973_USSR; OBD_1965_USSR; Obdorsk; Oceanographer; OCG_1967_USA; OCH_1989_USSR; Ocher; OKE_1970_USSR; Okean; OLO_1965_USSR; OLO_1967_USSR; Olonets; ORE_1962_USSR; ORE_1964_USSR; ORE_1965_USSR; Orehovo; ORL_1965_USSR; Orlik; OSM_1981_USSR; Otto Smidt; PAT_1981-1989_USSR; Patriot; Pavel Kaikov; PDE_1984_Argentina; PDERY_1968_USSR; Petr Lebedev; Pioner Latvii; PK_1982_USSR; PL_Germany; PLA_1988_USSR; PLA_1989_USSR; Planet II (1967-2004); PLEBE_1961_USSR; PME_1974_USSR; PME_1976_USSR; PME_1979_USSR; PO_1971_USSR; POI_1972_USSR; POI_1979_USSR; Poisk; Polarnoye Siyaniye; Polarstern; PR_1970_USSR; PR_1979_USSR; PRI_1970_USSR; PRI_1971_USSR; PRI_1981_USSR; Priboy; Priliv; PRO_1966_USSR; PRO_1972_USSR; PRO_1984_USSR; Professor Deryugin; Professor Mesyatsev; Professor Vize; Professor Vodyanitskiy; Professor Zubov; Prognoz; Prydz Bay; PS04; PS04/3-track; PS06/3-track; PS06 SIBEX; PS09/1-track; PS09 WWSP86 SIBEX; PS10/2-track; PS10/3-track; PS10 WWSP86; PS14/4-track; PS14 EPOS I; PS16/2-track; PS16 06AQANTVIII_2; PSI_1981_USSR; PSI_1983_USSR; Puerto Deseado; PV5; PV5_482-2; PVI_1967-1988_USSR; PYR_1973_France; Pyrrhus; PZ_1968-1989_USSR; QUA_1977_USSR; Quantum; RAD_1966_USSR; Raduga; RAN_1958_Argentina; RAN_1966_Argentina; Ranquel; RC_1965-1987_USA; Research station; RET_1963_USSR; Retiviy; Riiser-Larsen Sea; Robert Conrad; Ross Sea; SAG_1963_Australia; Saga; SAL_1971-1989_USSR; Salehard; San Juan; San Luis; Sardinops; SARI_1959-1965_RSA; SAU_1989_USSR; Saulkrasty; Scotia Sea, southwest Atlantic; SES_1966_USSR; Seskar; SEV_1950-1955_USSR; Sevastopol; Sevastopolskiy Rybak; Shirase; Shoyo-Maru; SHR_1981-1987; SIS_1956-1965_USA; SJU_1928_Argentina; SJU_1929_Argentina; Skif; SKIF_1969-1980_USSR; SLA_1951-1959_USSR; Slava; SLU_1928_Argentina; SMAR_1965; SOLI_1956_Brazil; Solimoes; South Atlantic Ocean; Southern Ocean; South Pacific Ocean; SPE_1980_USSR; Spectrum; Spencer F. Baird; SRY_1980_USSR; Staten Island; STV_1975_USSR; Stvor; SUC_1968_USSR; Suchan; Sula;
    Type: Dataset
    Format: application/zip, 334 datasets
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    DATA PANGAEA
  • 2
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    Unknown
    Petrological parameters of sands and sandstones from DSDP and ODP holes in arc-related areas (1992)
    PANGAEA
    In:  Supplement to: Marsaglia, Kathleen M; Ingersoll, Raymond V (1992): Compositional trends in arc-related, deep-marine sand and sandstone: A reassessment of magmatic-arc provenance. Geological Society of America Bulletin, 104(12), 1637-1649, https://doi.org/10.1130/0016-7606(1992)104%3C1637:CTIARD%3E2.3.CO;2
    Details
    Publication Date: 2024-07-01
    Description: Detrital modes for 524 deep-marine sand and sandstone samples recovered on circum-Pacific, Caribbean, and Mediterranean legs of the Deep Sea Drilling Project and the Ocean Drilling Program form the basis for an actualistic model for arc-related provenance. This model refines the Dickinson and Suczek (1979) and Dickinson and others (1983) models and can be used to interpret the provenance/tectonic history of ancient arc-related sedimentary sequences. Four provenance groups are defined using QFL, QmKP, LmLvLs, and LvfLvmiLvl ternary plots of site means: (1) intraoceanic arc and remnant arc, (2) continental arc, (3) triple junction, and (4) strike-slip-continental arc. Intraoceanic- and remnant-arc sands are poor in quartz (mean QFL%Q 〈 5) and rich in lithics (QFL%L 〉 75); they are predominantly composed of plagioclase feldspar and volcanic lithic fragments. Continental-arc sand can be more quartzofeldspathic than the intraoceanic- and remnant-arc sand (mean QFL%Q values as much as 10, mean QFL%F values as much as 65, and mean QmKP%Qm as much as 20) and has more variable lithic populations, with minor metamorphic and sedimentary components. The triple-junction and strike-slip-continental groups compositionally overlap; both are more quartzofeldspathic than the other groups and show highly variable lithic proportions, but the strike-slip-continental group is more quartzose. Modal compositions of the triple junction group roughly correlate with the QFL transitional-arc field of Dickinson and others (1983), whereas the strike-slip-continental group approximately correlates with their dissected-arc field.
    Keywords: 110-671; 110-671B; 110-672; 110-672A; 110-674; 110-674A; 13-127; 13-128; 15-148; 15-154; 18-173; 18-174; 18-177; 18-178; 18-179; 18-180; 18-181; 18-182; 19-184; 19-185; 19-186; 19-188; 19-190; 19-191; 21-203; 30-286; 31-290; 31-293; 31-296; 31-297; 31-298; 31-299; 5-32; 5-34; 56-434; 56-435; 57-438; 57-439; 57-440; 58-442; 58-442A; 58-444; 58-444A; 58-445; 58-446; 59-447; 59-448; 59-450; 59-451; 60-453; 60-455; 60-457; 60-458; 60-459; 66-486; 66-488; 66-489; 66-489A; 66-490; 66-491; 66-492; 66-493; 67-494; 67-497; 67-498; 67-498A; 67-499; 67-500; 84-565; 84-566; 84-566C; 84-567; 84-568; 84-569; 84-570; 87-582; 87-583; 87-584; 90-593; Caribbean Sea/RIDGE; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Leg110; Leg13; Leg15; Leg18; Leg19; Leg21; Leg30; Leg31; Leg5; Leg56; Leg57; Leg58; Leg59; Leg60; Leg66; Leg67; Leg84; Leg87; Leg90; Mediterranean Sea/TRENCH; North Pacific; North Pacific/BASIN; North Pacific/Bering Strait/BASIN; North Pacific/Bering Strait/PLATEAU; North Pacific/Bering Strait/RIDGE; North Pacific/Bering Strait/SPUR; North Pacific/CREST; North Pacific/FAN; North Pacific/Japan Sea; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/RIDGE; North Pacific/Philippine Sea/TROUGH; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/SEDIMENT POND; North Pacific/SLOPE; North Pacific/TRANSITION ZONE; North Pacific/TRENCH; South Atlantic Ocean; South Pacific; South Pacific/BASIN; South Pacific/Tasman Sea/PLATEAU
    Type: Dataset
    Format: application/zip, 39 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Age models and stable isotopes of sediment cores from the northern seas (1992)
    PANGAEA
    In:  Supplement to: Köhler, Sabine E I (1992): Spätquartäre paläo-ozeanographische Entwicklung des Nordpolarmeeres anhand von Sauerstoff- und Kohlenstoff-Isotopenverhältnissen der planktischen Foraminifere. GEOMAR Report, GEOMAR Research Center for Marine Geosciences, Christian Albrechts University in Kiel, 13, 104 pp
    Details
    Publication Date: 2024-07-01
    Description: Oxygen and carbon isotope measurements were carried out on tests of planktic foraminifers N. pachyderma (sin.) from eight sediment cores taken from the eastern Arctic Ocean, the Fram Strait, and the lceland Sea, in order to reconstruct Arctic Ocean and Norwegian-Greenland Sea circulation patterns and ice covers during the last 130,000 years. In addition, the influence of ice, temperature and salinity effects on the isotopic signal was quantified. Isotope measurements on foraminifers from sediment surface samples were used to elucidate the ecology of N. pachyderma (sin.). Changes in the oxygen and carbon isotope composition of N. pachyderma (sin.) from sediment surface samples document the horizontal and vertical changes of water mass boundaries controlled by water temperature and salinity, because N. pachyderma (sin.) shows drastic changes in depth habitats, depending on the water mass properties. It was able to be shown that in the investigated areas a regional and spatial apparent increase of the ice effect occurred. This happened especially during the termination I by direct advection of meltwaters from nearby continents or during the termination and in interglacials by supply of isotopically light water from rivers. A northwardly proceeding overprint of the 'global' ice effect, increasing from the Norwegian-Greenland Sea to the Arctic Ocean, was not able to be demonstrated. By means of a model the influence of temperature and salinity on the global ice volume signal during the last 130,000 years was recorded. In combination with the results of this study, the model was the basis for a reconstruction of the paleoceanographic development of the Arctic Ocean and the Norwegian-Greenland Sea during this time interval. The conception of a relatively thick and permanent sea ice cover in the Nordic Seas during glacial times should be replaced by the model of a seasonally and regionally highly variable ice cover. Only during isotope stage 5e may there have been a local deep water formation in the Fram Strait.
    Keywords: 49-08; 49-13; 49-14; 49-15; 49-18; 49-20; 49-39; 49-43; 49-50; 52-04; 52-09; 52-14; 52-24; 52-28; 52-30; 52-33; 52-37; 52-38; 57-04; 57-06; 57-07; 57-08; 57-09; 57-10; 57-11; 57-12; 57-13; 57-14; 57-20; 58-08; Antarctic Ocean; Arctic Ocean; ARK-I/3; ARK-II/4; ARK-II/5; ARK-IV/3; ARK-VII/1; BC; Box corer; BS88/6_10B; BS88/6_3; BS88/6_4; BS88/6_6; BS88/6_7; BS88/6_8; CTD/Rosette; CTD-RO; Fram Strait; GEOMAR; Giant box corer; GIK13123-1; GIK13124-1; GIK13131-1; GIK13138-1; GIK13140-3; GIK13147-1; GIK13150-1; GIK16129-1; GIK16130-1; GIK16132-1; GIK16136-1; GIK16141-1; GIK16142-1; GIK16144-1; GIK16911-1; GIK16916-1; GIK16917-1; GIK16921-1; GIK21513-9 PS11/276-9; GIK21515-10 PS11/280-10; GIK21519-11 PS11/296-11; GIK21520-10 PS11/310-10; GIK21522-19 PS11/358-19; GIK21523-15 PS11/362-15; GIK21524-1 PS11/364-1; GIK21525-2 PS11/365-2; GIK21525-3 PS11/365-3; GIK21527-10 PS11/371-10; GIK21528-7 PS11/372-7; GIK21529-7 PS11/376-7; GIK21533-3 PS11/412; GIK21534-6 PS11/423-6; GIK21535-5 PS11/430-5; GIK21535-8 PS11/430-8; GIK21845-2 PS17/010; GIK21852-1 PS17/018; GIK23037-2; GIK23038-3; GIK23039-3; GIK23040-3; GIK23041-1; GIK23042-1; GIK23043-1; GIK23055-2; GIK23056-2; GIK23057-2; GIK23058-1; GIK23059-2; GIK23061-3; GIK23062-3; GIK23064-2; GIK23065-2; GIK23066-2; GIK23067-2; GIK23068-2; GIK23069-2; GIK23071-2; GIK23072-2; GIK23074-3; GIK23215-1 PS03/215; GIK23227-1 PS05/412; GIK23228-1 PS05/413; GIK23229-1 PS05/414; GIK23230-1 PS05/416; GIK23231-1 PS05/417; GIK23233-1 PS05/420; GIK23235-1 PS05/422; GIK23237-1 PS05/425; GIK23238-1 PS05/426; GIK23239-1 PS05/427; GIK23240-1 PS05/428; GIK23241-1 PS05/429; GIK23242-1 PS05/430; GIK23243-1 PS05/431; GIK23244-1 PS05/449; GIK23247-1 PS05/452; GIK-cruise; GKG; Gravity corer (Kiel type); Håkon Mosby; Helmholtz Centre for Ocean Research Kiel; HM49; HM49-08; HM49-13; HM49-14; HM49-15; HM49-18; HM49-20; HM49-39; HM49-43; HM49-50; HM52; HM52-04; HM52-09; HM52-14; HM52-24; HM52-28; HM52-30; HM52-33; HM52-37; HM52-38; HM57; HM57-04; HM57-06; HM57-07; HM57-08; HM57-09; HM57-10; HM57-11; HM57-12; HM57-13; HM57-14; HM57-20; HM58; HM58-08; HM82/83; Iceland Sea; KAL; Kasten corer; KOL; Kolbeinsey Ridge; M107-1; M2/1; M2/2; Meteor (1986); Nansen Basin; Norwegian-Greenland Sea/off Iceland; Norwegian Sea; Piston corer (Kiel type); PO158/A; Polarstern; POS158/1; POS158/1-GEOM_01/1-GKG; POS158/1-GEOM_03/1-GKG; POS158/1-GEOM_04/1-GKG; POS158/1-GEOM_06/1-GKG; Poseidon; PS03; PS05; PS11; PS1126-1; PS1227-1; PS1228-1; PS1229-1; PS1230-1; PS1231-1; PS1233-1; PS1235-1; PS1237-1; PS1238-1; PS1239-1; PS1240-1; PS1241-1; PS1242-1; PS1243-1; PS1244-1; PS1247-1; PS1513-9; PS1515-10; PS1519-11; PS1520-10; PS1522-19; PS1523-15; PS1524-1; PS1525-2; PS1525-3; PS1527-10; PS1528-7; PS1529-7; PS1533-3; PS1534-6; PS1535-5; PS1535-8; PS17; PS1845-2; PS1852-1; Quaternary Environment of the Eurasian North; QUEEN; SL; Svalbard; Voering Plateau; Voring Plateau; Yermak Plateau
    Type: Dataset
    Format: application/zip, 31 datasets
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    DATA PANGAEA
  • 4
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    Unknown
    Physical oceanography and hydrochemistry measured on water bottle samples during METEOR cruise M10/1 (1993)
    PANGAEA
    In:  Supplement to: Koeve, Wolfgang; Eppley, Richard W; Podewski, Sigrid; Zeitzschel, Bernt (1993): An unexpected nitrate distribution in the tropical North Atlantic at 18°N, 30°W - implications for new production. Deep Sea Research Part II: Topical Studies in Oceanography, 40(1-2), 521-536, https://doi.org/10.1016/0967-0645(93)90030-Q
    Details
    Publication Date: 2024-07-01
    Description: During a R.V. Meteor JGOFS-NABE cruise to a tropical site in the northeast Atlantic in spring 1989, three different vertical regimes with respect to nitrate distribution and availability within the euphotic zone were observed. Besides dramatic variations in the depth of the nitracline, a previously undescribed nose-like nitrate maximum within the euphotic zone was the most prominent feature during this study. Both the vertical structure of phytoplankton biomass and the degree of absolute and relative new production were related to the depth of the nitracline, which in turn was dependent on the occurrence/non-occurrence of the subsurface subtropical salinity maximum (Smax). The mesoscale variability of the nitracline depth, as indicated from a pre-survey grid, and published data on the frequent occurrence of the Smax in tropical waters suggest higher variability of new production and F-ratio than usually expected for oligotrophic oceans. The importance of salt fingering and double diffusion for nitrate transport into the euphotic zone is discussed.
    Keywords: 14C uptake; Ammonium; Bacteria; Calculated; Carbon, organic, particulate; Carbon/nitrogen analyser (GF/F filtered); Chemiluminescence (NO2/NO3); Chlorophyll a; Chlorophyll a, fluorometric determination (Grasshoff et al., 1983, Chemie GmbH); Colorometric analysis, manual; Continuous Flow Automated Analysis (Gordon et al., 1993, WOCE Tech Rpt 93-1); CTD; CTD/Rosette; CTD-RO; Cyanobacteria; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Epifluorescence microscopy; Eukaryotes; Event label; Gravimetric analysis (GF/F filtered); JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/1; M10/1-CTD-239_045; M10/1-CTD-241_047; M10/1-CTD-242_048; M10/1-CTD-245_050; M10/1-CTD-247_052; M10/1-CTD-249_053; M10/1-CTD-252_056; M10/1-CTD-254_058; M10/1-CTD-258_064; M10/1-CTD-260_067; M10/1-CTD-264_075; M10/1-CTD-266_076; M10/1-CTD-270_078; M10/1-CTD-273_079; M10/1-CTD-274_080; M10/1-CTD-277_081; M10/1-CTD-279_083; M10/1-CTD-282_085; M10/1-CTD-283_086; M10/1-CTD-286_089; M10/1-CTD-287_090; M10/1-CTD-290_093; M10/1-CTD-291_095; M10/1-CTD-292_098; M10/1-CTD-295_101; M10/1-CTD-358_164; M10/1-CTD-359_165; M10/1-CTD-361_166; M10/1-CTD-362_168; M10/1-CTD-364_170; M10/1-CTD-366_171; M10/1-CTD-369_174; M10/1-CTD-370_180; M10/1-CTD-374_183; M10/1-CTD-376_185; M10/1-CTD-380_190; M10/1-CTD-382_191; M10/1-CTD-383_193; M10/1-CTD-385_195; M10/1-CTD-387_196; M10/1-CTD-390_200; M10/1-CTD-392_201; M10/1-CTD-396_206; M10/1-CTD-398_208; M10/1-CTD-401_212; M10/1-CTD-403_214; M10/1-CTD-403_508; M10/1-CTD-403_509; M10/1-CTD-406_218; M10/1-CTD-410_219; M10/1-CTD-414_220; M10/1-CTD-418_221; M10/1-CTD-422_222; M10/1-CTD-426_223; Meteor (1986); NABE; Nanoflagellates, heterotrophic; Nitrate and Nitrite; Nitrite; Nitrogen, organic, particulate; North Atlantic Bloom Experiment, 1989-1991; Optical microscopy; Oxygen; Oxygen, Winkler (Culberson, 1991, WOCE Report 68/91); Phosphate; Primary production of carbon per hour; Salinity; Silicate; Suspended matter, total; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 3726 data points
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  • 5
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    Unknown
    (Table A1) Factor analysis of live benthic foraminifera assemblage in surface sediments (1993)
    PANGAEA
    Details
    Publication Date: 2024-07-01
    Keywords: Agulhas Basin; ANT-IX/4; ANT-VI/3; ANT-VIII/3; Atlantic Indik Ridge; Atlantic Ridge; AWI_Paleo; Cape Basin; Communality; Discovery Seamount; Elevation of event; Event label; Factor 1; Factor 2; Factor 3; Factor 4; Factor 5; Factor analysis; Giant box corer; GKG; Indian-Antarctic Ridge; LATITUDE; LONGITUDE; Meteor Rise; MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS12; PS12/545; PS12/551; PS12/553; PS12/555; PS12/557; PS16; PS16/262; PS16/267; PS16/271; PS16/278; PS16/281; PS16/284; PS16/294; PS16/303; PS16/306; PS16/311; PS16/316; PS16/321; PS16/323; PS16/329; PS16/334; PS16/337; PS16/342; PS16/345; PS16/351; PS16/354; PS16/362; PS16/366; PS16/372; PS1649-1; PS1651-2; PS1652-1; PS1653-2; PS1654-1; PS1750-7; PS1751-2; PS1752-5; PS1754-2; PS1755-1; PS1756-6; PS1759-1; PS1764-2; PS1765-1; PS1768-1; PS1771-4; PS1772-6; PS1773-2; PS1774-1; PS1775-5; PS1776-6; PS1777-7; PS1778-1; PS1779-3; PS1780-1; PS1782-6; PS1783-1; PS1786-2; PS18; PS18/229; PS18/232; PS18/236; PS18/237; PS18/238; PS18/239; PS18/241; PS18/242; PS18/243; PS18/244; PS18/249; PS18/250; PS18/251; PS18/252; PS18/253; PS18/254; PS18/255; PS18/256; PS18/257; PS18/260; PS18/261; PS18/262; PS18/263; PS18/264; PS18/266; PS18/267; PS2073-1; PS2076-1; PS2080-1; PS2081-1; PS2082-3; PS2083-1; PS2084-2; PS2085-1; PS2086-3; PS2087-1; PS2091-1; PS2092-1; PS2093-1; PS2094-1; PS2095-1; PS2096-1; PS2097-1; PS2098-1; PS2099-1; PS2102-1; PS2103-2; PS2104-1; PS2105-2; PS2106-1; PS2108-1; PS2109-3; SFB261; Shona Ridge; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; South Sandwich Basin; South Sandwich Islands; South Sandwich Trough; Van Heesen Ridge
    Type: Dataset
    Format: text/tab-separated-values, 324 data points
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  • 6
    facet.materialart.
    Unknown
    (Table 2) Stable carbon isotope ratios of bottom water and benthic foraminifera from surface sediment samples (1993)
    PANGAEA
    Details
    Publication Date: 2024-07-01
    Keywords: Agulhas Basin; ANT-IV/3; ANT-IV/4; ANT-IX/3; ANT-IX/4; ANT-V/4; ANT-VI/3; ANT-VIII/3; ANT-VIII/6; Argentine Islands; Astrid Ridge; Atka Bay; Atlantic Indik Ridge; Atlantic Ridge; AWI_Paleo; Bulimina aculeata, δ13C; Bulimina aculeata, δ18O; Camp Norway; Cape Basin; Cibicidoides cf. wuellerstorfi, δ13C; Cibicidoides cf. wuellerstorfi, δ18O; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; CTD/Rosette; CTD-RO; DEPTH, sediment/rock; Discovery Seamount; Eastern Weddell Sea, Southern Ocean; Elevation of event; Event label; Filchner Trough; Fram Strait; Giant box corer; GKG; Indian-Antarctic Ridge; Kapp Norvegia; LATITUDE; Lazarev Sea; LONGITUDE; Mass spectrometer Finnigan MAT 251; Meteor Rise; MUC; MultiCorer; Nuttallides umbonifera, δ13C; Nuttallides umbonifera, δ18O; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS08; PS08/345; PS08/374; PS08/410; PS08/509; PS10; PS10/816; PS12; PS12/382; PS12/545; PS12/551; PS12/553; PS12/555; PS12/557; PS1373-2; PS1394-1; PS1410-1; PS1436-1; PS1506-2; PS16; PS16/262; PS16/267; PS16/271; PS16/278; PS16/281; PS16/284; PS16/294; PS16/303; PS16/306; PS16/311; PS16/316; PS16/321; PS16/323; PS16/329; PS16/334; PS16/337; PS16/342; PS16/345; PS16/351; PS16/354; PS16/362; PS16/366; PS16/552; PS16/554; PS16/557; PS16/559; PS1626-1; PS1649-1; PS1651-2; PS1652-1; PS1653-2; PS1654-1; PS1750-7; PS1751-2; PS1752-5; PS1754-2; PS1755-1; PS1756-6; PS1759-1; PS1764-2; PS1765-1; PS1768-1; PS1771-4; PS1772-6; PS1773-2; PS1774-1; PS1775-5; PS1776-6; PS1777-7; PS1778-1; PS1779-3; PS1780-1; PS1782-6; PS1783-1; PS18; PS18/153; PS18/184; PS18/185; PS18/186; PS18/187; PS18/192; PS18/193; PS18/194; PS18/198; PS18/199; PS18/204; PS18/229; PS18/231; PS18/232; PS18/236; PS18/237; PS18/238; PS18/239; PS18/241; PS18/242; PS18/243; PS18/244; PS18/249; PS18/250; PS18/251; PS18/252; PS18/253; PS18/254; PS18/255; PS18/256; PS18/257; PS18/260; PS18/261; PS18/262; PS18/263; PS18/264; PS18/266; PS18/267; PS1828-6; PS1829-5; PS1831-6; PS1832-4; PS2011-1; PS2037-2; PS2038-3; PS2039-2; PS2040-1; PS2045-2; PS2046-2; PS2047-2; PS2050-2; PS2051-3; PS2056-3; PS2073-1; PS2075-3; PS2076-1; PS2080-1; PS2081-1; PS2082-3; PS2083-1; PS2084-2; PS2085-1; PS2086-3; PS2087-1; PS2091-1; PS2092-1; PS2093-1; PS2094-1; PS2095-1; PS2096-1; PS2097-1; PS2098-1; PS2099-1; PS2102-1; PS2103-2; PS2104-1; PS2105-2; PS2106-1; PS2108-1; PS2109-3; SFB261; Shona Ridge; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; South Sandwich Basin; South Sandwich Islands; Van Heesen Ridge; Weddell Sea; δ13C, dissolved inorganic carbon; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 475 data points
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  • 7
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    Unknown
    Physical oceanography during METEOR cruise M10/1 (1993)
    PANGAEA
    In:  Supplement to: Podewski, Sigrid; Saure, G; Eppley, Richard W; Koeve, Wolfgang; Peinert, Rolf; Zeitzschel, Bernt (1993): The nose: a characteristic inversion within the salinity maximum water in the tropical northeast Atlantic. Deep Sea Research Part II: Topical Studies in Oceanography, 40(1-2), 537-557, https://doi.org/10.1016/0967-0645(93)90031-H
    Details
    Publication Date: 2024-07-01
    Description: During leg 1 of Meteor cruise 10 in March/April 1989 at 18°N, 30°W, the high spatial and temporal resolution of hydrographic CTD-stations indicated that the study site was in a hydrographically complex region in the transition zone between the Canary Current and the North Equatorial Current at the southern boundary of the subtropical gyre. Strong variability was found within the upper 120 m due to interleavings of warmer and saltier subtropical salinity maximum water with colder and less saline upper thermocline water. The interleavings caused unexpected nose-like temperature, salinity, nitrate and oxygen profiles yet not described in the literature. A second variability source was found in the Central Water area, because the study area was situated in the vicinity of the Central Water Boundary dividing North and South Atlantic Central Water. Hydrographic analysis of the study shows that interpretations of biological and chemical data can only be done in conjunction with high resolution CTD-profiling.
    Keywords: Calculated; Calculated from conductivity; CTD, Neil Brown, Mark III B; CTD/Rosette; CTD profile; CTD-RO; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/1; M10/1-CTD-198_004; M10/1-CTD-199_005; M10/1-CTD-200_006; M10/1-CTD-201_007; M10/1-CTD-202_008; M10/1-CTD-203_009; M10/1-CTD-204_010; M10/1-CTD-205_011; M10/1-CTD-206_012; M10/1-CTD-207_013; M10/1-CTD-208_014; M10/1-CTD-209_015; M10/1-CTD-210_016; M10/1-CTD-211_017; M10/1-CTD-212_018; M10/1-CTD-213_019; M10/1-CTD-214_020; M10/1-CTD-215_021; M10/1-CTD-216_022; M10/1-CTD-217_023; M10/1-CTD-218_024; M10/1-CTD-219_025; M10/1-CTD-220_026; M10/1-CTD-221_027; M10/1-CTD-222_028; M10/1-CTD-223_029; M10/1-CTD-224_030; M10/1-CTD-225_031; M10/1-CTD-226_032; M10/1-CTD-227_033; M10/1-CTD-228_034; M10/1-CTD-229_035; M10/1-CTD-230_036; M10/1-CTD-231_037; M10/1-CTD-232_038; M10/1-CTD-233_039; M10/1-CTD-234_040; M10/1-CTD-235_041; M10/1-CTD-236_042; M10/1-CTD-237_043; M10/1-CTD-238_044; M10/1-CTD-239_045; M10/1-CTD-240_046; M10/1-CTD-241_047; M10/1-CTD-242_048; M10/1-CTD-244_049; M10/1-CTD-245_050; M10/1-CTD-246_051; M10/1-CTD-247_052; M10/1-CTD-249_053; M10/1-CTD-250_054; M10/1-CTD-251_055; M10/1-CTD-252_056; M10/1-CTD-253_057; M10/1-CTD-254_058; M10/1-CTD-255_059; M10/1-CTD-256_060; M10/1-CTD-256_061; M10/1-CTD-256_062; M10/1-CTD-257_063; M10/1-CTD-258_064; M10/1-CTD-259_065; M10/1-CTD-259_066; M10/1-CTD-260_067; M10/1-CTD-261_068; M10/1-CTD-262_069; M10/1-CTD-262_070; M10/1-CTD-262_071; M10/1-CTD-262_072; M10/1-CTD-262_073; M10/1-CTD-263_074; M10/1-CTD-264_075; M10/1-CTD-266_076; M10/1-CTD-267_077; M10/1-CTD-270_078; M10/1-CTD-273_079; M10/1-CTD-274_080; M10/1-CTD-277_081; M10/1-CTD-278_082; M10/1-CTD-279_083; M10/1-CTD-280_084; M10/1-CTD-282_085; M10/1-CTD-283_086; M10/1-CTD-284_087; M10/1-CTD-285_088; M10/1-CTD-286_089; M10/1-CTD-287_090; M10/1-CTD-288_091; M10/1-CTD-289_092; M10/1-CTD-290_093; M10/1-CTD-291_094; M10/1-CTD-291_095; M10/1-CTD-291_096; M10/1-CTD-291_097; M10/1-CTD-292_098; M10/1-CTD-293_099; M10/1-CTD-294_100; M10/1-CTD-295_101; M10/1-CTD-296_102; M10/1-CTD-297_103; M10/1-CTD-298_104; M10/1-CTD-299_105; M10/1-CTD-300_106; M10/1-CTD-301_107; M10/1-CTD-302_108; M10/1-CTD-303_109; M10/1-CTD-304_110; M10/1-CTD-305_111; M10/1-CTD-306_112; M10/1-CTD-307_113; M10/1-CTD-308_114; M10/1-CTD-309_115; M10/1-CTD-310_116; M10/1-CTD-311_117; M10/1-CTD-312_118; M10/1-CTD-313_119; M10/1-CTD-314_120; M10/1-CTD-315_121; M10/1-CTD-316_122; M10/1-CTD-317_123; M10/1-CTD-318_124; M10/1-CTD-319_125; M10/1-CTD-320_126; M10/1-CTD-321_127; M10/1-CTD-322_128; Meteor (1986); NABE; North Atlantic Bloom Experiment, 1989-1991; Pressure, water; Salinity; Temperature, water; Temperature, water, potential
    Type: Dataset
    Format: text/tab-separated-values, 263145 data points
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  • 8
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    Unknown
    Hydrochemistry measured on water bottle samples during METEOR cruise M10/1 (1993)
    PANGAEA
    In:  Supplement to: Passow, Uta; Peinert, Rolf (1993): The role of plankton in particle flux; two case studies from the northeast Atlantic. Deep Sea Research Part II: Topical Studies in Oceanography, 40(1-2), 573-585, https://doi.org/10.1016/0967-0645(93)90033-J
    Details
    Publication Date: 2024-07-01
    Description: The relationship between the vertical flux of microplankton and its standing stock in the upper ocean was determined in the subtropical (33°N, 21°W) and tropical (18°N, 30°W) northeast Atlantic in spring 1989 as part of the North Atlantic Bloom Experiment. In the subtropical area specific sedimentation rates at all depths were low (0.1% of standing stock) and 10-20% of settled particulate organic carbon (POC) was viable diatoms. The high contribution of viable diatoms, their empty frustules and tintinnid loricae to settled material characterized a system in transition between a diatom bloom sedimentation event and an oligotrophic summer situation. In the tropical area specific sedimentation rates were similar, but absolute rates (3 mg C m?2 day?1) were only about a third of those in the subtropical area. Microplankton carbon contributed only 2-6% to POC. Hard parts of heterotrophs found embedded in amorphous detrital matter suggest that particles had passed through a complex food web prior to sedimentation. Coccolithophorids, not diatoms dominated the autotrophic fraction in traps, and a shift in the composition of autotrophs may indicate a perturbation of the oligotrophic system.
    Keywords: Ammonium; Bottle, Niskin 30-L; Carbon, organic, particulate; Carbon/nitrogen analyser (GF/F filtered); Chlorophyll a; Chlorophyll a, fluorometric determination (Grasshoff et al., 1983, Chemie GmbH); Colorometric analysis, manual; Continuous Flow Automated Analysis (Gordon et al., 1993, WOCE Tech Rpt 93-1); Date/Time of event; DEPTH, water; Elevation of event; Event label; Gravimetric analysis (GF/F filtered); JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/1; M10/1-RO6-241_003; M10/1-RO6-241_004; M10/1-RO6-245_006; M10/1-RO6-245_007; M10/1-RO6-249_009; M10/1-RO6-249_010; M10/1-RO6-254_011; M10/1-RO6-254_012; M10/1-RO6-260_013; M10/1-RO6-260_014; M10/1-RO6-266_016; M10/1-RO6-266_017; M10/1-RO6-273_020; M10/1-RO6-273_021; M10/1-RO6-279_024; M10/1-RO6-279_025; M10/1-RO6-283_028; M10/1-RO6-283_029; M10/1-RO6-287_031; M10/1-RO6-287_032; M10/1-RO6-292_034; M10/1-RO6-292_035; M10/1-RO6-361_039; M10/1-RO6-361_040; M10/1-RO6-366_044; M10/1-RO6-366_045; M10/1-RO6-370_046; M10/1-RO6-370_047; M10/1-RO6-376_049; M10/1-RO6-376_050; M10/1-RO6-382_054; M10/1-RO6-382_055; M10/1-RO6-387_058; M10/1-RO6-387_059; M10/1-RO6-387_060; M10/1-RO6-393_063; M10/1-RO6-393_064; M10/1-RO6-398_067; M10/1-RO6-398_068; M10/1-RO6-398_069; M10/1-RO6-403_071; M10/1-RO6-403_072; Meteor (1986); NABE; NIS_30L; Nitrate and Nitrite; Nitrite; Nitrogen, organic, particulate; North Atlantic Bloom Experiment, 1989-1991; Oxidation; then autoanalysis (GF/F filtered); Oxidation (alkaline) with borate buffered potassium persulphate; Phosphate; Phosphorus, particulate; Silicate; Silicon, particulate; Suspended matter, total
    Type: Dataset
    Format: text/tab-separated-values, 1700 data points
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  • 9
    facet.materialart.
    Unknown
    Benthic foraminifera of late Quaternary sediments in the northern North Atlantic (1993)
    PANGAEA
    In:  Supplement to: Nees, Stefan (1993): Spätquartäre Benthosforaminiferen des Europäischen Nordmeeres: Veränderungen der Artengesellschaften und Akkumulationsraten bei Klimawechseln. Berichte aus dem Sonderforschungsbereich 313, Christian-Albrechts-Universität, Kiel, 44, 80 pp, https://doi.org/10.2312/reports-sfb313.1993.44
    Details
    Publication Date: 2024-07-01
    Description: Four long sediment cores from locations in the Framstrait, the Norwegian-Greenland Seas and the northern North Atlantic were analysed in a high resolution sampling mode (1 - 2 cm density) for their benthic foraminiferal content. In particular the impact of the intense climatic changes at glacial/interglacial transitions (terminations I and II) on the benthic community have been of special interest. The faunal data were investigated by means of multivariate analysis and represented in their chronological occurence. The most prominent species of benthic foraminifera in the Norwegian-Greenland Seas are Oridorsalis umbonatus, Cibicidoides wuellerstorfi, the group of Cassidulina, Pyrgo rotalaria, Globocassidulina subglobosa and fragmented tubes of arenaceous species. The climatic signal of termination I as well as termination II is recorded in the fossil foraminiferal tests as divided transition from glacial to interglacial. The elder INDAR maximum (individuals accumulation rate = individuals/sq cm * 1.000 y; Norwegian-Greenland Seas: average 3.000 - 6.000 individuals/sq cm * 1.000 y; northern North Atlantic: average 150 individuals/sq cm * 1.000 y) is followed by a period of decreased values. The second, younger maximum reaches comparable values as the elder maximum. The interglacial INDAR are in average 700 individuals/sq cm * 1.000 y in the Norwegian-Greenland Seas and 200 individuals/sq cm * 1.000 y in average in the northern North Atlantic. The occurence of the elder INDAR maximum shows a distinct chronological transgressivity between the northern North Atlantic (12.400 ybp.) and the Framstrait (8.900 ybp.). The time shift from south to north amounts 3.500 yrs., the average expanding velocity 0,78 km per year. Within the Norwegian-Greenland Seas the average expanding velocity amounts 0,48 km per year. This chronological transgressivity is interpreted as impact of the progressive expanding of the North Atlantic and the Norwegian Current during the deglaciation. The dynamic of the faunal development is defined as increasing INDAR per time. The elder INDAR maximum shows in both glacial/interglacial transitions an exponential increase from south to north. Termination II is characterized by a general higher dynamic as termination I. By means of the high resolution sampling density the impact of regional isotopic recognized melt-water events is recognized by an increase of endobenthic and t-ubiquitous species in the Norwegian-Greenland Seas sediments. During termination I the relative minimum between both INDAR maxima occur chronological with an decrease of calculated sea surface temperatures. This is interpreted as indication of the close pelagic - benthic coupling. The climatic signal in the northern North Atlantic recorded in the fossil benthic foraminiferal community shows a lower amplitude as in the Norwegian-Greenland Seas. The occurence of the epibenthic Cibicidoides wuellersforfi allows to evaluate the variability of the bottom water mass. In general at all core locations increasing lateral bottom currents are recognized with the occurence of the second younger INDAR maximum. In comparison with various paleo-climatological data sets fossil benthic foraminifers show a distinct koherence with changes of the atmospheric temperatures, the SSTs and the postglacial sea level increase. The benthic foraminiferal fauna is bound indirectly on and indicative for regional climatic changes, but principal dependent upon global climatic changes.
    Keywords: Arctic Ocean; ARK-VII/1; GIK21906-2 PS17/081; GIK23068-3; GIK23256-1; GIK23414-9; Global Environmental Change: The Northern North Atlantic; Greenland Sea; KAL; Kasten corer; KOL; M17/2; M2/2; M23414; M7/2; Meteor (1986); Northeast Atlantic; Norwegian Sea; Piston corer (Kiel type); Polarstern; PS17; PS1906-2; SFB313
    Type: Dataset
    Format: application/zip, 11 datasets
    Location Call Number Expected Availability
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  • 10
    facet.materialart.
    Unknown
    Sedimentology of the northwestern Weddell Sea continental shelf and slope (1992)
    PANGAEA
    In:  Supplement to: Brehme, Isa (1992): Sedimentfazies und Bodenwasserstrom am Kontinentalhang des nordwestlichen Weddellmeeres (Sediment facies and bottomwater current on the continental slope in the northwestern Weddell Sea). Berichte zur Polarforschung = Reports on Polar Research, 110, 127 pp, https://doi.org/10.2312/BzP_0110_1992
    Details
    Publication Date: 2024-07-01
    Description: Sediment cores on two profiles oriented normaly to the continental shelf and slope, have been investigated to reconstruct the Quaternary sedimentary history of the southeast continental border of South Orkney (NW Weddell Sea). The sediments were described macroscopically and their fabric investigated by use of X-radiographs. Laboratory work comprised detailed grain-size analysis, determination of the watercontent, carbonate, organic carbon and sand fraction.composition. Stable oxygen and carbon isotopes have been measured On planktonic foraminifera. Palaeomagnetism, analysis of 230Th-content and detailed comparison of the lithlogic Parameters with the oxygen isotope stages (Martinson curve) were used for stratigraphic classification of the sediments. The sediment cores from the continental slope comprise a maximum age of 300,000 years B. P.. Bottom currents, ice rafting and biogenic input are the main sources of sediment. Based on lithologic parameters a distinction between glacial and interglacial facies is possible. Silty clays without microfossils and few bioturbation characterise the sediments of the glacial facies. Only small amounts of icerafted debris can be recognized. This type of sediment was accumulated during times of lower sea-level and drastically reduced rate of bottom water production. Based on grain-size distribution, bottom current velocities of 0.01 cmls were calculated. Thick sea-ice coverage reduced biogenic production in the surface water, and as consequence benthic communities were depleted. Because of the reduced benthic life, sediments are only slithly bioturbated. At the beginning of the interglacial Stage, the sea-level rised rapidly, and calving rate of icebergs, combined with input of ice-rafted material, increased considerably. Sediments of this transition facies are silty cliiys with a high proportion of coarse ice-rafted debris, but without microfossils. With the onset of bottom water production in connection with shelf ice water, sediments of interglacial facies were formed. They consist of silty clays to clayey silts with considerable content of sand and gravel. Sediments are strongly bioturbated. Based On the sediment caracteristics, current velocities of the bottom water were calculated to be of 0.96 cmls for interglacials. At the southern slope of a NW/SE-striking ridge, bottom water current is channelized, resulting in a drastic increase of current velocities. Current velocities up to 7.5 cm/s lead to formation of residual sediments. While the continental slope has predominantly fine sediments, the South Orkney shelf are mainly sandy silts and silty sands with a high proportion of gravel. These sediments were formed dominantly by ice-rafting during Brunhes- and Matuyama-Epoch. Currents removed the fine fraction of the sediments. Based on microfossil contents it was not possible to differentiate sediments from glacial to interglacial. In the upper Parts of the cores graded sequences truncated by erosion were observed. These sequences were formed during Brunhes-Epoch by strong currents with velocities decreasing periodically from about 7.5 cm/s to about 1 cm/s. Sediments with a high proportion of siliceous microfossils but barren of foraminifera compose the lower part of the shelf cores. These sediments have formed during the warmer Matuyama-Epoch.
    Keywords: ANT-II/3; ANT-VI/3; ANT-X/5; AWI_Paleo; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; PLA; Plankton net; Polarstern; PS04; PS04/257; PS04/259; PS1170-3; PS1172-1; PS12; PS12/248; PS12/250; PS12/252; PS1575-1; PS1576-2; PS1577-1; PS22 06AQANTX_5; PS2270-3; SL; South Atlantic Ocean; South Orkney
    Type: Dataset
    Format: application/zip, 13 datasets
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