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  • 2010-2014  (1,343,804)
  • 1990-1994  (15)
  • 1980-1984  (12)
  • 1940-1944  (3)
  • 2013  (690,507)
  • 2012  (653,320)
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  • 1
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    Grain-size analysis and geochemistry of sediment core GeoB13602-1 (2012)
    PANGAEA
    In:  Supplement to: Just, Janna; Heslop, David; von Dobeneck, Tilo; Bickert, Torsten; Dekkers, Mark J; Frederichs, Thomas; Meyer, Inka; Zabel, Matthias (2012): Multi-proxy characterization and budgeting of terrigenous end-members at the NW African continental margin. Geochemistry, Geophysics, Geosystems, 13, Q0AO01, https://doi.org/10.1029/2012GC004148
    Details
    Publication Date: 2024-06-26
    Description: Grain-size, terrigenous element and rock magnetic remanence data of Quaternary marine sediments retrieved at the NW African continental margin off Gambia (gravity core GeoB 13602-1, 13°32.71' N, 17°50.96'W) were jointly analyzed by end-member (EM) unmixing methods to distinguish and budget past terrigenous fluxes. We compare and cross-validate the identified single-parameter EM systems and develop a numerical strategy to calculate associated multi-parameter EM properties. One aeolian and two fluvial EMs were found. The aeolian EM is much coarser than the fluvial EMs and is associated with a lower goethite/hematite ratio, a higher relative concentration of magnetite and lower Al/Si and Fe/K ratios. Accumulation rates and grain sizes of the fluvial sediment appear to be primarily constrained by shore distance (i.e., sea-level fluctuations) and to a lesser extent by changes in hinterland precipitation. High dust fluxes occurred during the Last Glacial Maximum (LGM) and during Heinrich Stadials (HS) while the fluvial input remained unchanged. Our approach reveals that the LGM dust fluxes were ~7 times higher than today's. However, by far the highest dust accumulation occurred during HS 1 (~300 g m**-2 yr** -1), when dust fluxes were ~80 fold higher than today. Such numbers have not yet been reported for NW Africa, and emphasize strikingly different environmental conditions during HSs. They suggest that deflation rate and areal extent of HSs dust sources were much larger due to retreating vegetation covers. Beyond its regional and temporal scope, this study develops new, in principle, generally applicable strategies for multi-method end-member interpretation, validation and flux budgeting calibration.
    Keywords: 409-1; Center for Marine Environmental Sciences; GeoB13602-1; Gravity corer (Kiel type); Maria S. Merian; MARUM; MSM11/2; SL; Southern Senegal
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Hydrogen consumption in vent files of the equatorial Atlantic (2013)
    PANGAEA
    In:  Supplement to: Petersen, Jillian M; Zielinski, Frank U; Pape, Thomas; Seifert, Richard; Moraru, Cristina; Amann, Rudolf; Hourdez, Stéphane; Girguis, Peter R; Wankel, Scott D; Barbe, Valerie; Pelletier, Eric; Fink, Dennis; Borowski, Christian; Bach, Wolfgang; Dubilier, Nicole (2011): Hydrogen is an energy source for hydrothermal vent symbioses. Nature, 476, 176-180, https://doi.org/10.1038/nature10325
    Details
    Publication Date: 2024-06-26
    Description: The discovery of deep-sea hydrothermal vents in 1977 revolutionized our understanding of the energy sources that fuel primary productivity on Earth. Hydrothermal vent ecosystems are dominated by animals that live in symbiosis with chemosynthetic bacteria. So far, only two energy sources have been shown to power chemosynthetic symbioses: reduced sulphur compounds and methane. Using metagenome sequencing, single-gene fluorescence in situ hybridization, immunohistochemistry, shipboard incubations and in situ mass spectrometry, we show here that the symbionts of the hydrothermal vent mussel Bathymodiolus from the Mid-Atlantic Ridge use hydrogen to power primary production. In addition, we show that the symbionts of Bathymodiolus mussels from Pacific vents have hupL, the key gene for hydrogen oxidation. Furthermore, the symbionts of other vent animals such as the tubeworm Riftia pachyptila and the shrimp Rimicaris exoculata also have hupL. We propose that the ability to use hydrogen as an energy source is widespread in hydrothermal vent symbioses, particularly at sites where hydrogen is abundant.
    Keywords: DERIDGE; From Mantle to Ocean: Energy-, Material- and Life-cycles at Spreading Axes; HYDROMAR2; M64/2; M64/2-244-ROV; M64/2-263-ROV; M64/2-266-ROV; M64/2-281-ROV; M68/1; M68/1-20-ROV; M68/1-24-ROV; M68/1-39-ROV; M68/1-70-ROV; MARSUED3; Meteor (1986); Mid-Atlantic Ridge at 10-15°N; Remote operated vehicle; ROV
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Stable hydrogen and carbon isotope records and concentration data for four long chain n-alkanes from core GIK16160-3 derived from the Zambezi delta in the Mozambique Channel during the last 37,000 years (2013)
    PANGAEA
    In:  Supplement to: Wang, Yiming V; Larsen, Thomas; Leduc, Guillaume; Andersen, Nils; Blanz, Thomas; Schneider, Ralph R (2013): What does leaf wax dD from a mixed C3/C4 vegetation region tell us? Geochimica et Cosmochimica Acta, 111, 128-139, https://doi.org/10.1016/j.gca.2012.10.016
    Details
    Publication Date: 2024-06-26
    Description: Hydrogen isotope values (dD) of sedimentary terrestrial leaf wax such as n-alkanes or n-acids have been used to map and understand past changes in rainfall amount in the tropics because dD of precipitation is commonly assumed as the first order controlling factor of leaf wax dD. Plant functional types and their photosynthetic pathways can also affect leaf wax dD but these biological effects are rarely taken into account in paleo studies relying on this rainfall proxy. To investigate how biological effects may influence dD values we here present a 37,000-year old record of dD and stable carbon isotopes (d13C) measured on four n-alkanes (n-C27, n-C29, n-C31, n-C33) from a marine sediment core collected off the Zambezi River mouth. Our paleo d13C records suggest that each individual n-alkanes had different C3/C4 proportional contributions. n-C29 was mostly derived from a C3 dicots (trees, shrubs and forbs) dominant vegetation throughout the entire record. In contrast, the longer chain n-C33 and n-C31 were mostly contributed by C4 grasses during the Glacial period but shifted to a mixture of C4 grasses and C3 dicots during the Holocene. Strong correlations between dD and d13C values of n-C33 (correlation coefficient R2 = 0.75, n = 58) and n-C31 (R2 = 0.48, n = 58) suggest that their dD values were strongly influenced by changes in the relative contributions of C3/C4 plant types in contrast to n-C29 (R2 = 0.07, n = 58). Within regions with variable C3/C4 input, we conclude that dD values of n-C29 are the most reliable and unbiased indicator for past changes in rainfall, and that dD and d13C values of n-C31 and n-C33 are sensitive to C3/C4 vegetation changes. Our results demonstrate that a robust interpretation of palaeohydrological data using n-alkane dD requires additional knowledge of regional vegetation changes from which nalkanes are synthesized, and that the combination of dD and d13C values of multiple n-alkanes can help to differentiate biological effects from those related to the hydrological cycle.
    Keywords: GIK/IfG; GIK16160-3; Gravity corer (Kiel type); Institute for Geosciences, Christian Albrechts University, Kiel; M75/3; M75/3_137-3; Meteor (1986); Sambesi Fan; SL
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Chemical composition of sediment core GeoB12309-5 from the northern Arabian Sea, its pore water profile and age depth relationship as well as CTD data obtained during cruise M74/3 (2013)
    PANGAEA
    In:  Supplement to: Wilhelms-Dick, Dorothee; Hanebuth, Till J J; Zonneveld, Karin A F; Röhl, Ursula; Kuhn, Gerhard; Kriews, Michael; Gerstmann, Udo; Kasten, Sabine (submitted): Variability and extent of the oxygen minimum zone in the northern Arabian Sea during the late Holocene.
    Details
    Publication Date: 2024-06-26
    Description: The Arabian Sea off the Pakistan continental margin is characterized by one of the world's largest oxygen minimum zones (OMZ). The lithology and geochemistry of a 5.3 m long gravity core retrieved from the lower boundary of the modern OMZ (956 m water depth) were used to identify late Holocene changes in oceanographic conditions and the vertical extent of the OMZ. While the lower part of the core (535 - 465 cm, 5.04 - 4.45 cal kyr BP, Unit 3) is strongly bioturbated indicating oxic bottom water conditions, the upper part of the core (284 - 0 cm, 2.87 cal kyr BP to present, Unit 1) shows distinct and well-preserved lamination, suggesting anoxic bottom waters. The transitional interval from 465 to 284 cm (4.45 - 2.87 cal kyr BP, Unit 2) contains relicts of lamination which are in part intensely bioturbated. These fluctuations in bioturbation intensity suggest repetitive changes between anoxic and oxic/suboxic bottom-water conditions between 4.45 - 2.87 cal kyr BP. Barium excess (Baex) and total organic carbon (TOC) contents do not explain whether the increased TOC contents found in Unit 1 are the result of better preservation due to low BWO concentrations or if the decreased BWO concentration is a result of increased productivity. Changes in salinity and temperature of the outflowing water from the Red Sea during the Holocene influenced the water column stratification and probably affected the depth of the lower boundary of the OMZ in the northern Arabian Sea. Even if we cannot prove certain scenarios, we propose that the observed downward shift of the lower boundary of the OMZ was also impacted by a weakened Somali Current and a reduced transport of oxygen-rich Indian Central Water into the Arabian Sea, both as a response to decreased summer insolation and the continuous southward shift of the Intertropical Convergence Zone during the late Holocene.
    Keywords: Center for Marine Environmental Sciences; GC; GC10; GeoB; GeoB12309-5; Geosciences, University of Bremen; Gravity corer; M74/3; MARUM; Meteor (1986); OMZ 950
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Late Pleistocene sediment record of the Maldives carbonate platform (2012)
    PANGAEA
    In:  Supplement to: Paul, Andreas; Reijmer, John J G; Fürstenau, Jörn; Kinkel, Hanno; Betzler, Christian (2012): Relationship between Late Pleistocene sea-level variations, carbonate platform morphology and aragonite production (Maldives, Indian Ocean). Sedimentology, 59(5), 1640-1658, https://doi.org/10.1111/j.1365-3091.2011.01319.x
    Details
    Publication Date: 2024-06-26
    Description: A piston core from the Maldives carbonate platform was investigated for carbonate mineralogy, grain-size distributions, calcium carbonate content and organic carbon. The sedimentary record was linked to Late Pleistocene sea-level variations, using an age model based on oxygen isotopes obtained from planktonic foramanifera, nannofossil biostratigraphy and 14C age determinations. The correlation between the sedimentary record and Late Pleistocene sea-level showed that variations in aragonite and mud during the past 150 000 years were clearly related to flooding and sea floor exposure of the main lagoons of the atolls of the Maldives carbonate platform. Platform flooding events were characterized by strongly increased deposition of aragonite and mud within the Inner Sea of the Maldives. Exposure events, in contrast, can be recognized by rapid decreases in the values of both proxy records. The results show that sediments on the Maldives carbonate platform contain a continuous record of Pleistocene sea-level variations. These sediments may, therefore, contribute to a better understanding of regional and even global sea-level changes, and yield new insights into the interplay between ocean currents and carbonate platform morphology.
    Keywords: M74/4; M74/4_1096-1; M74/4-1095-KL; Meteor (1986); NEOMA: The Neogene of the Maldives; PC; Piston corer
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 6
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    Pore water data from sediment cores recovered during POSEIDON cruise POS410 (2012)
    PANGAEA
    In:  MARUM - Center for Marine Environmental Sciences, University Bremen
    Details
    Publication Date: 2024-06-26
    Keywords: Center for Marine Environmental Sciences; GC; GeoB15302; GeoB15303; GeoB15307; GeoB15310; GeoB15311; GeoB15312; GeoB15314; GeoB15317; GeoB15321; GeoB15323; GeoB15325; GeoB15326; GeoB15329; GeoB15330; GeoB15331; GeoB15332; GeoB15334; GeoB15335; GeoB15337; GeoB15339; GeoB15340; GeoB15341; GeoB15343; GeoB15344; GeoB15345; GeoB15347; GeoB15348; GeoB15349; GeoB15351; GeoB15352; GeoB15353; GeoB15356; GeoB15357; GeoB15358-3; GeoB15362; GeoB15363; GeoB15369; GeoB15370; Gravity corer; MARUM; MUDFLOW; POS410; POS410_140-1; POS410_141-1; POS410_145-1; POS410_148-1; POS410_149-1; POS410_150-1; POS410_151-1; POS410_154-1; POS410_157-1; POS410_159-1; POS410_160-1; POS410_161-1; POS410_164-1; POS410_165-1; POS410_166-1; POS410_167-1; POS410_168-1; POS410_169-1; POS410_171-1; POS410_172-1; POS410_173-1; POS410_174-1; POS410_175-1; POS410_176-1; POS410_177-1; POS410_178-1; POS410_179-1; POS410_180-1; POS410_181-1; POS410_182-1; POS410_183-1; POS410_185-1; POS410_186-1; POS410_187-2; POS410_190-1; POS410_191-1; POS410_194-1; POS410_195-1; Poseidon
    Type: Dataset
    Format: application/zip, 38 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 7
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    Surface Ocean CO2 Atlas (SOCAT) V1.4 (2013)
    PANGAEA
    In:  Supplement to: Pfeil, Benjamin; Olsen, Are; Bakker, Dorothee C E; Hankin, Steven; Koyuk, Heather; Kozyr, Alexander; Malczyk, Jeremy; Manke, Ansley; Metzl, Nicolas; Sabine, Christopher L; Akl, John; Alin, Simone R; Bellerby, Richard G J; Borges, Alberto Vieira; Boutin, Jacqueline; Brown, Peter J; Cai, Wei-Jun; Chavez, Francisco P; Chen, Arthur; Cosca, Catherine E; Fassbender, Andrea J; Feely, Richard A; González-Dávila, Melchor; Goyet, Catherine; Hardman-Mountford, Nicolas J; Heinze, Christoph; Hood, E Maria; Hoppema, Mario; Hunt, Christopher W; Hydes, David; Ishii, Masao; Johannessen, Truls; Jones, Steve D; Key, Robert M; Körtzinger, Arne; Landschützer, Peter; Lauvset, Siv K; Lefèvre, Nathalie; Lenton, Andrew; Lourantou, Anna; Merlivat, Liliane; Midorikawa, Takashi; Mintrop, Ludger J; Miyazaki, Chihiro; Murata, Akihiko; Nakadate, Akira; Nakano, Yoshiyuki; Nakaoka, Shin-Ichiro; Nojiri, Yukihiro; Omar, Abdirahman M; Padín, Xose Antonio; Park, Geun-Ha; Paterson, Kristina; Pérez, Fiz F; Pierrot, Denis; Poisson, Alain; Ríos, Aida F; Santana-Casiano, Juana Magdalena; Salisbury, Joe; Sarma, Vedula V S S; Schlitzer, Reiner; Schneider, Bernd; Schuster, Ute; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Suzuki, Toru; Takahashi, Taro; Tedesco, Kathy; Telszewski, Maciej; Thomas, Helmuth; Tilbrook, Bronte; Tjiputra, Jerry; Vandemark, Doug; Veness, Tony; Wanninkhof, Rik; Watson, Andrew J; Weiss, Ray F; Wong, Chi Shing; Yoshikawa-Inoue, Hisayuki (2013): A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT). Earth System Science Data, 5(1), 125-143, https://doi.org/10.5194/essd-5-125-2013
    Details
    Publication Date: 2024-06-26
    Description: A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). Many additional CO2 data, not yet made public via the Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from data originators, public websites and other data centres. All data were put in a uniform format following a strict protocol. Quality control was carried out according to clearly defined criteria. Regional specialists performed the quality control, using state-of-the-art web-based tools, specially developed for accomplishing this global team effort. SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data points from the global oceans and coastal seas, spanning four decades (1968-2007). Three types of data products are available: individual cruise files, a merged complete data set and gridded products. With the rapid expansion of marine CO2 data collection and the importance of quantifying net global oceanic CO2 uptake and its changes, sustained data synthesis and data access are priorities.
    Keywords: 0306SFC_PRT; 061ASFC_PRT; 06AQ19860627-track; 06AQ19860928-track; 06AQ19911114-track; 06AQ19911210-track; 06AQ19921005-track; 06AQ19930128-track; 06AQ19930228-track; 06AQ19931019-track; 06AQ19940524-track; 06AQ19951206-track; 06AQ19960320-track; 06AQ19980411-track; 06AQ19990327-track; 06AQ20001004-track; 06AQ20001026-track; 06BE19961010-track; 06CK20060523-track; 06CK20060715-track; 06CK20060821-track; 06GA19960613-track; 06GA276_3; 06LB19831130-track; 06LB19840107-track; 06LB19840629-track; 06LB19850110-track; 06LB19850313-track; 06LB19850812-track; 06LB19860116-track; 06LB19860323-track; 06LB19860801-track; 06LB19861011-track; 06LB19861214-track; 06LB19870221-track; 06LB19870501-track; 06LB19870721-track; 06LB19870920-track; 06LB19871126-track; 06LB19871231-track; 06LB19880204-track; 06MT18_1; 06MT19910903-track; 06MT19920510-track; 06MT19921229-track; 06MT19941012-track; 06MT19941119-track; 06MT19950714-track; 06MT19960607-track; 06MT19960622-track; 06MT19970106-track; 06MT19970516-track; 06MT19970707-track; 06MT19970814-track; 06MT19981228-track; 06MT20021015-track; 06MT20060714; 06MT20060714-track; 06MT22_5; 06MT30_2; 06MT30_3; 06MT37_2; 06MT39_4; 06MT39_5; 06P119910616-track; 06P119950901-track; 06PO20050321; 06PO20050322-track; 07AL19951011-track; 07AL19960218-track; 07AL19970503-track; 07AL19990718-track; 07AL19991101-track; 07AL19991129-track; 07AL20000113-track; 07AL20000210-track; 07AL20000305-track; 07AL20010513-track; 07AL20010607-track; 07AL20010709-track; 07AL20010802-track; 09AR0103; 09AR19910926-track; 09AR19921019-track; 09AR19930105-track; 09AR19930311-track; 09AR19930807-track; 09AR19931119-track; 09AR19940101-track; 09AR19940831-track; 09AR19941213-track; 09AR19950717-track; 09AR19950916-track; 09AR19960119-track; 09AR19960822-track; 09AR19970910-track; 09AR19971114-track; 09AR19980228-track; 09AR19980404-track; 09AR19980715-track; 09AR19990716-track; 09AR20011031-track; 09AR9401; 09AR9404; 09AR9407; 09AR9501; 09AR9502; 09AR9601; 09AR9604; 09AR9701; 09AR9703; 09AR9707; 09AR9801; 09AR9806; 09AR9901; 09FA20000927-track; 09SS19951116-track; 09SS19990205-track; 11BE19940413-track; 11BE19950303-track; 11BE19950912-track; 11BE19970513-track; 11BE19970527-track; 11BE19970609-track; 11BE19970618-track; 11BE19970621; 11BE19970621-track; 11BE19970702-track; 11BE19980107-track; 11BE19980614-track; 11BE19980625-track; 11BE19980710-track; 11BE19990830-track; 11BE19990904-track; 11BE19990914-track; 11BE19990918-track; 11BE20010502-track; 11BE20010514-track; 11BE20010522-track; 11BE20020422-track; 11BE20020511-track; 11BE20020528-track; 11BE20021104-track; 11BE20030331-track; 11BE20030901; 11BE20030901-track; 11BE20031027; 11BE20031027-track; 11BE20031208; 11BE20031208-track; 11BE20040223; 11BE20040223-track; 11BE20040329; 11BE20040329-track; 11BE20040524; 11BE20040524-track; 11BE20040601-track; 11BE20041004; 11BE20041004-track; 11BE20060425; 11BE20060425-track; 11BE20060529-track; 11BE20070507-track; 18QA19730812-track; 18QA19731028-track; 18QA19760111-track; 18QA19760619-track; 18QA19760911-track; 18QA19761204-track; 18VC19740105-track; 18VC19740216-track; 18VC19741113-track; 18VC19750622-track; 18VC19750913-track; 1995-10-BS; 1996-02-BS; 1997-05-BS; 1999-07-BS; 1999-11-BS; 1999-12-BS; 2000-01-BS; 2000-02-BS; 2000-03-BS; 2001-05-BS; 2001-06-BS; 2001-07-BS; 2001-08-BS; 2003-06-BS; 2003-07-BS; 2003-08-BS; 2003-09-BS; 2003-10-BS; 2004-02-BS; 2004-03-BS; 2004-04-BS; 2004-05-BS; 2004-06-BS; 2004-07-BS; 2004-08-BS; 2004-09-BS; 2004-10-BS; 2005-01-BS; 2005-02-BS; 2005-03-BS; 2005-04-BS; 2005-05-BS; 2005-06-BS; 2005-07-BS; 2005-08-BS; 2005-09-BS; 2005-10-BS; 2005-11-BS; 2005-12-BS; 2006-03-BS; 2006-04-BS; 2006-05-BS; 2006-06-BS; 2006-07-BS; 2006-08-BS; 2006-09-BS; 20070110_TC2; 20070117_TC2; 20070123_TC2; 20070130_TC2; 20070207_TC2; 20070219_TC2; 20070227_TC2; 20070305_TC2; 20070320_TC2; 20070327_TC2; 20070402_TC2; 20070409_TC2; 20070416_TC2; 20070423_TC2; 20070430_TC2; 20070508_TC2; 20070515_TC2; 20070521_TC2; 20070529_TC2; 20070604_TC2; 20070613_TC2; 20070620_TC2; 20070627_TC2; 20070703_TC2; 20070709_TC2; 20070716_TC2; 20070723_TC2; 20070730_TC2; 2007-07-BS; 20070806_TC2; 20070815_TC2; 20070820_TC2; 20070827_TC2; 2007-08-BS; 20070903_TC2; 20070910_TC2; 20070917_TC2; 20071001_TC2; 20071008_TC2; 20071010_TC2; 20071015_TC2; 20071023_TC2; 20071105_TC2; 20071115_TC2; 20071120_TC2; 20071128_TC2; 20071204_TC2; 20071211_TC2; 20071218_TC2; 20071225_TC2; 24N98L1; 24N98L2; 26GC20010421-track; 26GC20010831-track; 26NA20050107; 26NA20050107-track; 26NA20050115; 26NA20050115-track; 26NA20050130; 26NA20050130-track; 26NA20050207; 26NA20050207-track; 26NA20050317; 26NA20050317-track; 26NA20050321; 26NA20050321-track; 26NA20050402; 26NA20050402-track; 26NA20050420; 26NA20050420-track; 26NA20050502; 26NA20050502-track; 26NA20050511; 26NA20050511-track; 26NA20050523; 26NA20050523-track; 26NA20050531; 26NA20050531-track; 26NA20050614; 26NA20050614-track; 26NA20050624; 26NA20050624-track; 26NA20050714; 26NA20050714-track; 26NA20050720; 26NA20050720-track; 26NA20050730; 26NA20050730-track; 26NA20050805; 26NA20050805-track; 26NA20050815; 26NA20050815-track; 26NA20050824; 26NA20050824-track; 26NA20050914; 26NA20050914-track; 26NA20050927; 26NA20050927-track; 26NA20051005; 26NA20051005-track; 26NA20051018; 26NA20051018-track; 26NA20051026; 26NA20051026-track; 26NA20051110; 26NA20051110-track; 26NA20051117; 26NA20051117-track; 26NA20051130; 26NA20051130-track; 26NA20060518; 26NA20060518-track; 26NA20060527; 26NA20060527-track; 26NA20060607; 26NA20060607-track; 26NA20060617; 26NA20060617-track; 26NA20060628; 26NA20060628-track; 26NA20060708; 26NA20060708-track; 26NA20060719; 26NA20060719-track; 26NA20060728; 26NA20060728-track; 26NA20060809; 26NA20060809-track; 26NA20060818; 26NA20060818-track; 26NA20060830; 26NA20060830-track; 26NA20060908; 26NA20060908-track; 26NA20060920; 26NA20060920-track; 26NA20061011; 26NA20061011-track; 26NA20061021; 26NA20061021-track; 26NA20061128; 26NA20061128-track; 26NA20061202; 26NA20061202-track; 26NA20061214; 26NA20061214-track; 26NA20061225; 26NA20061225-track; 26NA20070103; 26NA20070103-track; 26NA20070112; 26NA20070112-track; 26NA20070125; 26NA20070125-track; 26NA20070205; 26NA20070205-track; 26NA20070216; 26NA20070216-track; 26NA20070323; 26NA20070323-track; 26NA20070329; 26NA20070329-track; 26NA20070410; 26NA20070410-track; 26NA20070418; 26NA20070418-track; 26NA20070427; 26NA20070427-track; 26NA20070509; 26NA20070509-track; 26NA20070518; 26NA20070518-track; 26NA20070530; 26NA20070530-track; 26NA20070610; 26NA20070610-track; 26NA20070622; 26NA20070622-track; 26NA20070701; 26NA20070701-track; 26NA20070712; 26NA20070712-track; 26NA20070721; 26NA20070721-track; 26NA20070802; 26NA20070802-track; 26NA20070811; 26NA20070811-track; 26NA20070901; 26NA20070901-track; 26NA20070912; 26NA20070912-track; 26NA20070923; 26NA20070923-track; 26NA20071003; 26NA20071003-track; 26NA20071014; 26NA20071014-track; 26NA20071024; 26NA20071024-track; 26NA20071103; 26NA20071103-track; 26NA20071114; 26NA20071114-track; 26NA20071124; 26NA20071124-track; 29HE050; 29HE19980729-track; 29HE20001028; 29HE20001028-track; 29HE20010306; 29HE20010306-track; 29HE20011027; 29HE20011027-track; 29HE20020305; 29HE20020305-track; 29HE20021028; 29HE20021028-track; 29HE20030409; 29HE20030409-track; 29HE20041021; 29HE20041021-track; 316N0154; 316N19810401-track; 316N19810416-track; 316N19810516-track; 316N19810619-track; 316N19810721-track; 316N19810821-track; 316N19810923-track; 316N19821202-track; 316N19821230-track; 316N19830130-track; 316N19831007-track; 316N19840111-track; 316N19871030-track; 316N19871123-track; 316N19871218-track; 316N19880128-track; 316N19940404-track; 316N19941201-track; 316N19950124-track; 316N19950310-track; 316N19950423-track; 316N19950611-track; 316N19950715-track; 316N19950829-track; 316N19951111-track; 316N19951205-track; 316N19961102-track; 316N19971005-track; 318M19780921-track; 318M19780928-track; 318M19790210-track; 318M19790308-track;
    Type: Dataset
    Format: application/zip, 1851 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 8
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    Unknown
    Revised age models and foraminiferal records obtained for the Last Interglacial period in six marine sediment cores (2012)
    PANGAEA
    In:  Supplement to: Govin, Aline; Braconnot, Pascale; Capron, Emilie; Cortijo, Elsa; Duplessy, Jean-Claude; Jansen, Eystein; Labeyrie, Laurent D; Landais, Amaëlle; Marti, O; Michel, Elisabeth; Mosquet, E; Risebrobakken, Bjørg; Swingedouw, Didier; Waelbroeck, Claire (2012): Persistent influence of ice sheet melting on high northern latitude climate during the early Last Interglacial. Climate of the Past, 8, 483-507, https://doi.org/10.5194/cp-8-483-2012
    Details
    Publication Date: 2024-06-26
    Description: The dataset contains the revised age models and foraminiferal records obtained for the Last Interglacial period in six marine sediment cores: - the Southern Ocean core MD02-2488 (age model, sea surface temperatures, benthic d18O and d13C for the period 136-108 ka), - the North Atlantic core MD95-2042 (age model, planktic d18O, benthic d18O and d13C for the period 135-110 ka), - the North Atlantic core ODP 980 (age model, planktic d18O, sea surface temperatures, seawater d18O, benthic d18O and d13C, ice-rafted detritus for the period 135-110 ka), - the North Atlantic core CH69-K09 (age model, planktic d18O, sea surface temperatures, seawater d18O, benthic d18O and d13C, ice-rafted detritus for the period 135-110 ka), - the Norwegian Sea core MD95-2010 (age model, percentage of Neogloboquadrina pachyderma sinistral, sea surface temperatures, benthic d18O, ice-rafted detritus for the period 134-110 ka), - the Labrador Sea core EW9302-JPC2 (age model, percentage of Neogloboquadrina pachyderma sinistral, sea surface temperatures, benthic d18O for the period 134-110 ka).
    Keywords: 162-980; CALYPSO; Calypso Corer; Center for Marine Environmental Sciences; CH69-K09; COMPCORE; Composite Core; EW9302-JPC2; GC; Giant piston corer (Calypso); GPC-C; Gravity corer; IMAGES I; Joides Resolution; JPC; Jumbo Piston Core; Kerguelen Plateau; Labrador Sea; Last Interglacial; Leg162; Marge Ibérique; Marion Dufresne (1995); MARUM; MD02-2488; MD101; MD125; MD 125 / SWIFT BIS-CARHOT; MD952010; MD95-2010; MD952042; MD95-2042; Newfoundland margin; Norwegian Sea; Ocean Drilling Program; ODP; South Atlantic Ocean; Southern Ocean; Voring Plateau
    Type: Dataset
    Format: application/zip, 12 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 9
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    Unknown
    Radiocarbon dating on cold-water corals, grain size, Corg, and benthic foraminfera assemblage of two sediment cores from the Ionian Sea (2012)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: Continuous sedimentary records from an eastern Mediterranean cold-water coral ecosystem thriving in intermediate water depths (~600 m) reveal a temporary extinction of cold-water corals during the Early to Mid Holocene from 11.4-5.9 cal kyr BP. Benthic foraminiferal assemblage analysis shows low-oxygen conditions of 2 ml l**-1 during the same period, compared to bottom-water oxygen values of 4-5 ml l**-1 before and after the coral-free interval. The timing of the corals' demise coincides with the sapropel S1 event, during which the deep eastern Mediterranean basin turned anoxic. Our results show that during the sapropel S1 event low oxygen conditions extended to the rather shallow depths of our study site in the Ionian Sea and caused the cold-water corals temporary extinction. This first evidence for the sensitivity of cold-water corals to low oceanic oxygen contents suggests that the projected expansion of tropical oxygen minimum zones resulting from global change will threaten cold-water coral ecosystems in low latitudes in the same way that ocean acidification will do in the higher latitudes.
    Keywords: Center for Marine Environmental Sciences; GeoB11185-1; GeoB11186-1; Gravity corer (Kiel type); HERMIONE; Hotspot Ecosystem Research and Mans Impact On European Seas; M70/1; M70/1_730; M70/1_731; MARUM; Meteor (1986); Santa Maria di Leuca; SL
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 10
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    Unknown
    Investigations of artificial sediments from two deep-sea in situ recolonization experiments deployed for one year at the central HAUSGARTEN station IV during ARK-XIX/3c (2012)
    PANGAEA
    In:  Supplement to: Freese, Daniela; Schewe, Ingo; Kanzog, Corinna; Soltwedel, Thomas; Klages, Michael (2012): Recolonisation of new habitats by meiobenthic organisms in the deep Arctic Ocean: an experimental approach. Polar Biology, 35(12), 1801-1813, https://doi.org/10.1007/s00300-012-1223-2
    Details
    Publication Date: 2024-06-26
    Description: Commercial exploitation and abrupt changes of the natural conditions may have severe impacts on the Arctic deep-sea ecosystem. The present recolonisation experiment mimicked a situation after a catastrophic disturbance (e.g. by turbidites caused by destabilized continental slopes after methane hydrate decomposition) and investigated if the recolonisation of a deep-sea habitat by meiobenthic organisms is fostered by variations innutrition and/or sediment structure. Two "Sediment Tray Free Vehicles" were deployed for one year in summer 2003 at 2500 m water depth in the Arctic deep-sea in the eastern Fram Strait. The recolonisation trays were filled with different artificial and natural sediment types (glass beads, sand, sediment mixture, pure deep-sea sediment) and were enriched with various types of food (algae, yeast, fish). After one year, meiobenthos abundances and various sediment related environmental parameters were investigated. Foraminifera were generally the most successful group: they dominated all treatments and accounted for about 87% of the total meiobenthos. Colonizing meiobenthos specimens were generally smaller compared to those in the surrounding deep-sea sediment, suggesting an active recolonisation by juveniles. Although experimental treatments with fine-grained, algae-enriched sediment showed abundances closest to natural conditions, the results suggest that food availability was the main determining factor for a successful recolonisation by meiobenthos and the structure of recolonised sediments was shown to have a subordinate influence.
    Keywords: ARK-XIX/3c; Hausgarten; HERMIONE; Hotspot Ecosystem Research and Mans Impact On European Seas; Long-term Investigation at AWI-Hausgarten off Svalbard; North Greenland Sea; Polarstern; PS64; PS64/474-1; PS64/475-1; Sediment tray free vehicle; STFV
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
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