ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 2010-2014  (437,266)
  • 2005-2009  (26)
  • 2000-2004  (17)
  • 1980-1984  (12)
  • 2010  (437,266)
Collection
Keywords
Publisher
Language
Years
Year
  • 1
    facet.materialart.
    Unknown
    A multi-proxy investigation of sediment core GeoB7165-1 and AMS 14C dating points from sediment cores off Conceptión (~ 36°S) (2010)
    PANGAEA
    In:  Supplement to: Mohtadi, Mahyar; Rossel, Pamela E; Lange, Carina Beatriz; Pantoja, Silvio; Böning, Philipp; Repeta, Daniel J; Grunwald, Maik; Lamy, Frank; Hebbeln, Dierk; Brumsack, Hans-Jürgen (2008): Deglacial pattern of circulation and marine productivity in the upwelling region off central-south Chile. Earth and Planetary Science Letters, 272, 221-230, https://doi.org/10.1016/j.epsl.2008.04.043
    Details
    Publication Date: 2024-07-01
    Description: A high-resolution sea surface temperature and paleoproductivity reconstruction on a sedimentary record collected at 36°S off central-south Chile (GeoB 7165-1, 36°33'S, 73°40'W, 797 m water depth, core length 750 cm) indicates that paleoceanographic conditions changed abruptly between 18 and 17 ka. Comparative analysis of several cores along the Chilean continental margin (30°-41°S) suggests that the onset and the pattern of deglacial warming was not uniform off central-south Chile due to the progressive southward migration of the Southern Westerlies and local variations in upwelling. Marine productivity augmented rather abruptly at 13-14 ka, well after the oceanographic changes.We suggest that the late deglacial increase in paleoproductivity off central-south Chile reflects the onset of an active upwelling system bringing nutrient-rich, oxygen-poor Equatorial SubsurfaceWater to the euphotic zone, and a relatively higher nutrient load of the Antarctic Circumpolar Current. During the Last Glacial Maximum, when the Southern Westerlies were located further north, productivity off central-south Chile, in contrast to off northern Chile, was reduced due to direct onshore-blowing winds that prevented coastal upwelling and export production.
    Keywords: Center for Marine Environmental Sciences; CHIPAL; CONDOR-Ia; East Pacific; GeoB3302-1; GeoB3359-3; GeoB7139-2; GeoB7165-1; GIK17748-2; Gravity corer (Kiel type); HOTLINE, HYGAPE; MARUM; off Chile; PUCK; SL; SO101; SO101/3_2-1; SO102/1; SO156/2; SO156/3; SO80_4; SO80a; Sonne; South-East Pacific
    Type: Dataset
    Format: application/zip, 6 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Expanded GHOST database (2010)
    PANGAEA
    In:  Supplement to: Leduc, Guillaume; Schneider, Ralph R; Kim, Jung-Hyun; Lohmann, Gerrit (2010): Holocene and Eemian Sea surface temperature trends as revealed by alkenone and Mg/Ca paleothermometry. Quaternary Science Reviews, 29(7-8), 989-1004, https://doi.org/10.1016/j.quascirev.2010.01.004
    Details
    Publication Date: 2024-07-01
    Description: In this study we review a global set of alkenone- and foraminiferal Mg/Ca-derived sea surface temperatures (SST) records from the Holocene and compare them with a suite of published Eemian SST records based on the same approach. For the Holocene, the alkenone SST records belong to the actualized GHOST database (Kim, J.-H., Schneider R.R., 2004). The actualized GHOST database not only confirms the SST changes previously described but also documents the Holocene temperature evolution in new oceanic regions such as the Northwestern Atlantic, the eastern equatorial Pacific, and the Southern Ocean. A comparison of Holocene SST records stemming from the two commonly applied paleothermometry methods reveals contrasting - sometimes divergent - SST evolution, particularly at low latitudes where SST records are abundant enough to infer systematic discrepancies at a regional scale. Opposite SST trends at particular locations could be explained by out-of-phase trends in seasonal insolation during the Holocene. This hypothesis assumes that a strong contrast in the ecological responses of coccolithophores and planktonic foraminifera to winter and summer oceanographic conditions is the ultimate reason for seasonal differences in the origin of the temperature signal provided by these organisms. As a simple test for this hypothesis, Eemian SST records are considered because the Holocene and Eemian time periods experienced comparable changes in orbital configurations, but had a higher magnitude in insolation variance during the Eemian. For several regions, SST changes during both interglacials were of a similar sign, but with higher magnitudes during the Eemian as compared to the Holocene. This observation suggests that the ecological mechanism shaping SST trends during the Holocene was comparable during the penultimate interglacial period. Although this "ecology hypothesis" fails to explain all of the available results, we argue that any other mechanism would fail to satisfactorily explain the observed SST discrepancies among proxies.
    Keywords: 108-658C; 138-846; 160-967D; 160-969E; 161-977; 162-984; 165-1002C; 165-999A; 167-1012B; 167-1017E; 167-1019C; 175-1078C; 175-1084B; 184-1145C; 2; 202-1233; 202-1240; 202-1242; 225514; 225517; 71; 90b; 96; 96-619; A-7; AD91-17; Alboran Sea; also published as VM28-122; Angola Basin; Arabian Sea; Arctic Ocean; Atlantic Ocean; AUSCAN; Bay of Bengal; BCR; BENEFIT/4; BENGAL FAN; Benguela Current, South Atlantic Ocean; BOFS31/1K; BOFS31#1; Box corer (Reineck); BS79-33; BS79-38; CALYPSO; Calypso Corer; Canarias Sea; Caribbean Sea; Cayman Rise, Caribbean Sea; CD159-12; CD53; CEPAG; CH07-98-GGC19; Charles Darwin; Chatham Rise; CHIPAL; Cocos Ridge; COMPCORE; Composite Core; Congo Fan; D13882; D249; De Soto Canyon; Discovery (1962); DRILL; Drilling/drill rig; Eastern Basin; East Pacific; Emperor Seamounts; Equatorial East Pacific; GC; GeoB1023-5; GeoB3129-1; GeoB3313-1; GeoB3910-2; GeoB4509-2; GeoB4905-4; GeoB5546-2; GeoB5844-2; GeoB5901-2; GeoB6007-2; GeoB6518-1; GeoB7139-2; GeoB7926-2; GEOSCIENCES, MARMARCORE; GeoTü SL71; GGC; GGC-15-1; Giant box corer; Giant gravity corer; Giant piston corer; GIK17748-2; GIK17940-2; GIK17964-1; GIK18252-3; GIK18287-3; GIK23258-2; GINCO 3; GKG; Glomar Challenger; GPC; Gravity corer; Gravity corer (Kiel type); Gulf of Mexico; Hakuho-Maru; HOTLINE, HYGAPE; IMAGES I; IMAGES III - IPHIS; IMAGES IV-IPHIS III; IMAGES IX - PAGE; IMAGES V; IMAGES VIII - MONA; IMAGES VII - WEPAMA; Indian Ocean; Indonesia; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; IOW225514; IOW225517; IOW4509B; James Clark Ross; Joides Resolution; JOPSII-6; JR20000727; JR51; JR51GC-35; JT96-0909PC; KAL; Kasten corer; KH-01-3; KH-01-3-19; KL; KL_Mg; Knorr; KNR176-2; KNR176-JPC32; Kurilen Trench; LAPAZ21P; Leg108; Leg138; Leg160; Leg161; Leg162; Leg165; Leg167; Leg175; Leg184; Leg202; Leg96; Le Suroît; M34/4; M35/1; M35003-4; M39/1; M39/1_08-3; M39008-3; M40/4; M40/4_87-6SL; M40/4_SL67; M40/4_SL71; M40/4_SL78; M40/4_SL78-3; M40/4_SL87; M41/1; M42/4b; M44/1; M44/1_74KL; M44/1_KL71; M44/3; M45/1; M45/5a; M47/3; M53/1; M6/6; M7/2; Marge Ibérique; Marion Dufresne (1972); Marion Dufresne (1995); Marmara Sea; MD01-2334; MD012378; MD01-2378; MD012390; MD01-2390; MD012412; MD01-2412; MD012416; MD01-2416; MD01-2443; MD022529; MD02-2529; MD022575; MD02-2575; MD032611G; MD03-2611G; MD03-2707; MD101; MD106; MD111; MD114; MD122; MD123; MD126; MD127; MD13; MD131; MD77-194; MD79-257; MD85674; MD94-103; MD952011; MD95-2011; MD952015; MD95-2015; MD952042; MD95-2042; MD952043; MD95-2043; MD972120; MD97-2120; MD972121; MD97-2121; MD972125; MD97-2125; MD972141; MD97-2141; MD972151; MD97-2151; MD982162; MD98-2162; MD982165; MD98-2165; MD982170; MD98-2170; MD982176; MD98-2176; MD982181; MD98-2181; MD99-2155; MD99-2251; MD99-2334; ME0005A; ME0005A-24JC; Melville; Meteor (1986); MONITOR MONSUN; NE-Brazilian continental margin; NEMO; Northeast Atlantic; Northeast Brasilian Margin; Northern Red Sea; North Pacific Ocean; North-West African margin; OCE326-GGC26; OCE326-GGC30; off Cameroon; OSIRIS4; OSIRIS III; Pacific Ocean; PAKOMIN; PC; PC-17; PC-2; PC-4; Petr Kottsov; Piston corer; Piston corer (BGR type); Piston corer Meischner large; PL07-39PC; Portuguese Margin; PUCK; RAPID-12-1K; RC11; RC1112; RC11-238; Reykjanes Ridge; RL11; Robert Conrad; Rockall; SCS90-36; SL; SO102/1; SO115; SO115_05; SO115_40; SO136; SO136_011GC; SO139; SO139-74KL; SO156/2; SO80_4; SO80a; SO90; SO90_136KL; SO90_39KG; SO90_93KL; SO93/3; SO93/3_126KL; SO95; Sonne; South Atlantic Ocean; South China Sea; South-East Pacific; Southern Ocean; Southern Okhotsk Sea; South Pacific Ocean; SSDP102; St.14; St.20; SU81-18; SUNDAFLUT; Sunda Shelf; TASQWA; Timor Sea; TN057-21; TR163-19; TR163-22; TY93-905; TY93929/P; U938; V19; V19-27; V19-28; V19-30; V21; V21-30; V28; V28-122; Vema; Victor Hensen; Vietnam shelf; Voring Plateau
    Type: Dataset
    Format: application/zip, 133 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Sinking rates of particles measured from deployments in the Atlantic Ocean based on seasonal data (2010)
    PANGAEA
    In:  Supplement to: Fischer, Gerhard; Karakas, Gökay (2009): Sinking rates and ballast composition of particles in the Atlantic Ocean: implications for the organic carbon fluxes to the deep ocean. Biogeosciences, 6, 85-102, https://doi.org/10.5194/bg-6-85-2009
    Details
    Publication Date: 2024-07-01
    Description: The flux of materials to the deep sea is dominated by larger, organic-rich particles with sinking rates varying between a few meters and several hundred meters per day. Mineral ballast may regulate the transfer of organic matter and other components by determining the sinking rates, e.g. via particle density. We calculated particle sinking rates from mass flux patterns and alkenone measurements applying the results of sediment trap experiments from the Atlantic Ocean. We have indication for higher particle sinking rates in carbonate-dominated production systems when considering both regional and seasonal data. During a summer coccolithophorid bloom in the Cape Blanc coastal upwelling off Mauritania, particle sinking rates reached almost 570 m per day, most probably due the fast sedimentation of densely packed zooplankton fecal pellets, which transport high amounts of organic carbon associated with coccoliths to the deep ocean despite rather low production. During the recurring winter-spring blooms off NW Africa and in opal-rich production systems of the Southern Ocean, sinking rates of larger particles, most probably diatom aggregates, showed a tendency to lower values. However, there is no straightforward relationship between carbonate content and particle sinking rates. This could be due to the unknown composition of carbonate and/or the influence of particle size and shape on sinking rates. It also remains noticeable that the highest sinking rates occurred in dust-rich ocean regions off NW Africa, but this issue deserves further detailed field and laboratory investigations. We obtained increasing sinking rates with depth. By using a seven-compartment biogeochemical model, it was shown that the deep ocean organic carbon flux at a mesotrophic sediment trap site off Cape Blanc can be captured fairly well using seasonal variable particle sinking rates. Our model provides a total organic carbon flux of 0.29 Tg per year down to 3000 m off the NW African upwelling region between 5 and 35° N. Simple parameterisations of remineralisation and sinking rates in such models, however, limit their capability in reproducing the flux variation in the water column.
    Keywords: ANT-III/2; ANT-VII/5; BO3; BO3_trap; Bouvet Island; Cape Blanc; CB1_trap; CB13; CB13_trap; CB2_trap; CB3_trap; CB4_trap; CB7; CB7_trap; Center for Marine Environmental Sciences; CV1-2_trap; CV2; CV2_trap; EA7; EA7_trap; EA8; EA8_trap; EA9; EA9_trap; East Equatorial Atlantic; Eastern equatorial Atlantic; GBN3_trap; GBS5; GBS5_trap; GeoB2212-8; GeoB2908; KG1_trap; M12/1; M16/2; M22/1; M29/3; M6/6; M9/4; MARUM; Meteor (1986); MOOR; Mooring; Mooring (long time); MOORY; Northwest Africa; PF3; Polar Front; Polarstern; PS06; PS14; Trap; TRAP; Trap, sediment; TRAPS; WA10; WA10_trap; WA11; WA11_trap; WA13; WA13_trap; WA14; WA14_trap; WA19; WA19_trap; WA4_trap; WA7_trap; WA8_trap; WA9; WA9_trap; Walvis Ridge, Southeast Atlantic Ocean; Western Atlantic; Western Equatorial Atlantic; WR2_trap
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    Grain-size analyses and bulk chemistry determined in surface sediment samples along the Chilean continental margin in the Southeast Pacific Ocean (2010)
    PANGAEA
    In:  Supplement to: Stuut, Jan-Berend W; Kasten, Sabine; Lamy, Frank; Hebbeln, Dierk (2007): Sources and modes of terrigenous sediment input to the Chilean continental slope. Quaternary International, 161(1), 67-76, https://doi.org/10.1016/j.quaint.2006.10.041
    Details
    Publication Date: 2024-07-01
    Description: Physical, chemical, and mineralogical properties of a set of surface sediment samples collected along the Chilean continental slope (21-44°S) are used to characterise present-day sedimentation patterns and sediment provenance on the Chilean margin. Despite the presence of several exceptional latitudinal gradients in relief, oceanography, tectonic evolution, volcanic activity and onshore geology, the present-day input of terrigenous sediments to the Chilean continental margin appears to be mainly controlled by precipitation gradients, and source-rock composition in the hinterland. General trends in grain size denote a southward decrease in median grain-size of the terrigenous (Corganic, CaCO3 and Opal-free) fraction, which is interpreted as a shift from aeolian to fluvial sedimentation. This interpretation is supported by previous observations of southward increasing bulk sedimentation rates. North-south trends in sediment bulk chemistry are best recognised in the iron (Fe) and titanium (Ti) vs. potassium (K) and aluminium (Al) ratios of the sediments that most likely reflect the contribution of source rocks from the Andean volcanic arc. These ratios are high in the northernmost part, abruptly decrease at 25°S, and then more or less constantly increase southwards to a maximum at ~40°S.
    Keywords: Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; GeoB7103-4; GeoB7104-6; GeoB7106-1; GeoB7108-1; GeoB7112-1; GeoB7114-1; GeoB7115-1; GeoB7116-1; GeoB7118-1; GeoB7119-1; GeoB7120-1; GeoB7121-1; GeoB7122-1; GeoB7123-1; GeoB7127-1; GeoB7128-1; GeoB7129-1; GeoB7130-1; GeoB7131-1; GeoB7132-1; GeoB7133-1; GeoB7134-1; GeoB7135-1; GeoB7136-1; GeoB7137-1; GeoB7138-1; GeoB7139-1; GeoB7140-1; GeoB7141-1; GeoB7142-1; GeoB7144-1; GeoB7147-1; GeoB7148-1; GeoB7149-1; GeoB7150-1; GeoB7152-1; GeoB7153-1; GeoB7154-2; GeoB7155-1; GeoB7156-1; GeoB7157-1; GeoB7158-1; GeoB7159-1; GeoB7160-4; GeoB7161-5; GeoB7162-4; GeoB7163-5; GeoB7166-2; GeoB7167-4; GeoB7169-2; GeoB7170-1; GeoB7171-2; GeoB7172-4; GeoB7173-4; GeoB7174-3; GeoB7175-4; GeoB7177-3; GeoB7179-1; GeoB7180-1; GeoB7181-1; GeoB7182-1; GeoB7183-1; GeoB7186-1; GeoB7187-1; GeoB7189-1; GeoB7190-1; GeoB7191-1; GeoB7192-1; GeoB7194-1; GeoB7195-1; GeoB7197-1; GeoB7198-1; GeoB7199-2; GeoB7202-1; GeoB7203-1; GeoB7207-1; GeoB7208-1; GeoB7211-1; GeoB7212-1; GeoB7213-1; GeoB7215-1; GeoB7216-1; GeoB7218-1; GeoB7219-1; MARUM; MUC; MultiCorer; off Chile; PUCK; SO156/1; SO156/2; SO156/3; Sonne
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    A new genus Abyssogena from deep-water vents and seeps (2010)
    PANGAEA
    In:  Supplement to: Krylova, Elena M; Sahling, Heiko; Janssen, Ronald (2010): Abyssogena: a new genus of the family Vesicomyidae (Bivalvia) from deep-water vents and seeps. Journal of Molluscan Studies, 76(2), 107-132, https://doi.org/10.1093/mollus/eyp052
    Details
    Publication Date: 2024-07-01
    Description: A new genus Abyssogena is established for A. phaseoliformis (Métivier, Okutani & Ohta, 1986) and A. kaikoi (Okutani & Métivier, 1986), which were previously assigned to the genus Calyptogena Dall, 1891, and also for two new species, A. southwardae and A. novacula. The most characteristic features of Abyssogena are an elongate shell up to about 280 mm in length; a pallial line starting from the ventral margin of the anterior adductor scar; secondary pallial attachment scars developed dorsal to the pallial line; radially arranged hinge teeth with a reduced anterior cardinal tooth in the right valve; and presence of an inner ctenidial demibranch only. Abyssogena occurs in deep water from 2,985 to 6,400 m and is distributed in the Pacific and Atlantic Oceans at cold seeps along continental margins and hydrothermal vents at mid-oceanic ridges. Some species have a remarkably wide geographic distribution; A. southwardae is present throughout the Atlantic and A. phaseoliformis is present in Japan, Kuril-Kamchatka, as well as Aleutian Trenches. No fossils of Abyssogena are known.
    Keywords: 11; 48-1; 49-1; 63-1; Advance_II_11; Akademik Mstislav Keldysh; Alaska, USA; ALVIN; AMK41; AMK41-3869-1; Anyas Garden, Logatchev area; AT_3133; Barbados; BARESNAUT_Pl_94; Center for Marine Environmental Sciences; Giant box corer; GKG; HYDROMAR1; Japan Trench; KAIKO_85_KR98-07; KAIKO_KD-14; KAIKO_KD-18; KAIKO_KD-5; KD-14; KD-18; KD-5; KODIAK-VENT; Logachev Hydrothermal Field, diffusive field; M60/3; M60/3-66-ROV; M66/1; M66/1_395; MARUM; Meteor (1986); Mid-Atlantic Ridge at 10-15°N; MIR; MIR deep-sea manned submersible; Nadir_PL-18; NAUT; Nautile; offshore Virginia; off the Canary Archipelago, Henry Seamount; Remote operated vehicle; ROV; SO110/2; SO110/2_48-1; SO110/2_49-1; SO110/2_63-1; SO97/1; SO97/1_66; Sonne; SO-RO; Submersible Alvin; Television-Grab; Tenryu Submarine Canyon; TVG
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Ostracoda in five sediment cores from the Laptev and Kara seas (2010)
    PANGAEA
    In:  Supplement to: Stepanova, Anna Yu; Taldenkova, Ekaterina; Bauch, Henning A (2012): Ostracod palaeoecology and environmental change in the Laptev and Kara seas (Siberian Arctic) during the last 18 000 years. Boreas, 41(4), 557-577, https://doi.org/10.1111/j.1502-3885.2012.00254.x
    Details
    Publication Date: 2024-07-01
    Description: Fossil ostracods were investigated in five AMS14C-dated cores from different parts of the Laptev and Kara seas. Three cores from the Laptev Sea shelf are located in river paleovalleys, and one core originates from the western continental slope. The core from the Kara Sea was obtained in the eastern shelf region. Six fossil assemblages were distinguished: estuarine (1), inner-shelf (2), middle-shelf (3), outer-shelf (4), Pre-Holocene upper continental slope (5), and Holocene upper continental slope (6). They show that during the Postglacial sea-level rise there was a transition from estuarine brackish-water environment to modern marine conditions. Assemblages 1-3 are present in the eastern Laptev Sea with the oldest ostracod-bearing samples aging back to 11.4-11.3 cal.ka. Cores from the western Laptev Sea (12.3 cal.ka, assemblages 1-4) and the Kara Sea (8.1 cal.ka, assemblages 2-4) demonstrate similar pattern in assemblage replacement, but contain a number of relatively deep-water species reflecting stronger influence of open-sea waters. Core from the continental slope, water depth 270 m (~ 17 cal.ka) encompasses assemblages 5 and 6, which are absent in the shelf cores. Assemblage 5 stands out as a specific community dominated by relatively deep-water Arctic and North Atlantic species together with euryhaline ones. The assemblages indicate inflows of Atlantic-derived waters and downslope slides due to the proximity to the paleocoastline. Assemblage (6) is similar to the modern local ostracod assemblage at this site.
    Keywords: Akademik Boris Petrov; ARK-XIV/1b; BP00; BP00-07/05; GC; Gravity corer; Gravity corer (Kiel type); KAL; Kara Sea; Kasten corer; Laptev Sea; Polarstern; PS51/135-4; PS51/138-12; PS51/154-11; PS51/159-10; PS51 Transdrift-V; SL
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Investigation of N. pachyderma from the North Atlantic (2010)
    PANGAEA
    In:  Supplement to: Bauch, Dorothea; Darling, Kate F; Simstich, Johannes; Bauch, Henning A; Erlenkeuser, Helmut; Kroon, Dick (2003): Palaeoceanographic implications of genetic variation in living North Atlantic Neogloboquadrina pachyderma. Nature, 424(6946), 299-303, https://doi.org/10.1038/nature01778
    Details
    Publication Date: 2024-07-01
    Description: The shells of the planktonic foraminifer Neogloboquadrina pachyderma have become a classical tool for reconstructing glacial-interglacial climate conditions in the North Atlantic Ocean. Palaeoceanographers utilize its left- and right-coiling variants, which exhibit a distinctive reciprocal temperature and water mass related shift in faunal abundance both at present and in late Quaternary sediments. Recently discovered cryptic genetic diversity in planktonic foraminifers now poses significant questions for these studies. Here we report genetic evidence demonstrating that the apparent 'single species' shell-based records of right-coiling N. pachyderma used in palaeoceanographic reconstructions contain an alternation in species as environmental factors change. This is reflected in a species-dependent incremental shift in right-coiling N. pachyderma shell calcite d18O between the Last Glacial Maximum and full Holocene conditions. Guided by the percentage dextral coiling ratio, our findings enhance the use of d18O records of right-coiling N. pachyderma for future study. They also highlight the need to genetically investigate other important morphospecies to refine their accuracy and reliability as palaeoceanographic proxies.
    Keywords: 104-1; 111-2; 114-1; 117-1; 120-1; 271; 61-1; Aegir Ridge, Norwegian-Greenland Sea; Arctic Ocean; ARK-I/3; ARK-II/4; ARK-II/5; ARK-III/3; ARK-IX/3; ARK-X/1; ARK-X/2; Atlantic Ocean; BS88/6_10B; BS88/6_4; BS88/6_8; CTD/Rosette; CTD-RO; Denmark Strait; East Greenland Sea; Fram Strait; Giant box corer; GIK16301-1; GIK16302-1; GIK16304-1; GIK16305-1; GIK16306-3; GIK21291-3 PS07/581; GIK23000-2; GIK23008-1; GIK23016-1; GIK23019-1; GIK23022-1; GIK23027-1; GIK23037-1; GIK23038-1; GIK23039-1; GIK23041-1; GIK23042-1; GIK23043-1; GIK23055-1; GIK23058-1; GIK23059-1; GIK23060-2; GIK23062-2; GIK23063-1; GIK23065-1; GIK23066-1; GIK23068-1; GIK23071-1; GIK23074-3; GIK23126-1 PS03/126; GIK23138-1 PS03/138; GIK23142-1 PS03/142; GIK23144-1 PS03/144; GIK23227-1 PS05/412; GIK23228-1 PS05/413; GIK23229-1 PS05/414; GIK23230-1 PS05/416; GIK23231-1 PS05/417; GIK23232-1 PS05/418; GIK23233-1 PS05/420; GIK23235-1 PS05/422; GIK23237-1 PS05/425; GIK23238-1 PS05/426; GIK23239-1 PS05/427; GIK23240-1 PS05/428; GIK23241-2 PS05/429; GIK23242-1 PS05/430; GIK23243-1 PS05/431; GIK23243-2 PS05/431; GIK23244-1 PS05/449; GIK23246-2 PS05/451; GIK23247-2 PS05/452; GIK23249-1 PS05/454; GIK23254-3; GIK23258-3; GIK23259-3; GIK23260-2; GIK23261-2; GIK23262-2; GIK23270-2; GIK23277-1; GIK23294-3; GIK23312-2; GIK23323-1; GIK23343-4; GIK23347-4; GIK23348-2; GIK23349-4; GIK23350-3; GIK23351-4; GIK23352-2; GIK23353-2; GIK23354-4; GIK23400-3; GIK23411-5; GIK23414-6; GIK23415-8; GIK23416-5; GIK23418-5; GIK23424-3; GIK23506-1; GIK23507-1; GIK23508-1; GIK23509-1; GIK23512-2; GIK23514-3; GIK23515-4; GIK23516-3; GIK23517-3; GIK23518-2; GIK23519-4; GIK23522-2; GIK23523-3; GIK23524-2; GIK23525-3; GIK23526-3; GIK23527-3; GIK23528-3; GIK23536-1; GIK23537-1; GIK23538-1; GIK23539-1; GIK23540-2; GIK23541-1; GIK23542-1; GIK23543-1; GIK23545-1; GIK23547-4; GIK23549-9; GIK23550-10; GIK23552-8; GIK23554-9; GKG; Global Environmental Change: The Northern North Atlantic; Gravity corer (Kiel type); Greenland Sea; Iceland Sea; KOL; Kong-Oskar-Fjord, East Greenland; M107-1; M17/1; M17/2; M2/1; M2/2; M21/4; M23414; M26/3; M36/3; M7/2; M7/3; M7/4; M7/5; Meteor (1986); MSN; MUC; MULT; MultiCorer; Multiple investigations; Multiple opening/closing net; Northeast Water Polynya; Norway Slope; Norwegian-Greenland Sea; Norwegian Sea; P284-2; P309-1; P317; Piston corer (Kiel type); Polarstern; POS100b; POS119; POS210/2; Poseidon; PS03; PS05; PS07; PS1050-1; PS1060-1; PS1064-1; PS1065-1; PS1227-1; PS1228-1; PS1229-1; PS1230-1; PS1231-1; PS1232-1; PS1233-1; PS1235-1; PS1237-1; PS1238-1; PS1239-1; PS1240-1; PS1241-2; PS1242-1; PS1243-1; PS1243-2; PS1244-1; PS1246-2; PS1247-2; PS1249-1; PS1291-3; PS26/217-1; PS26/258-1; PS26/264-1; PS26/271; PS2613-1; PS2616-7; PS2627-5; PS2638-6; PS2641-5; PS2644-2; PS2645-5; PS2646-2; PS2647-5; PS2656-2; PS26 NEW; PS31; PS31/002; PS31/054; PS31/113; PS31/116; PS31/135; PS31/150; PS31/154; PS31/160; PS31/161; PS31/162; PS31/163; PS31/182; SFB313; SL; van Veen Grab; VGRAB; Voring Plateau
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    14C specific radiocarbon ages and bulk ages accompanied by geochemical proxys from surface sediment samples in the Black Sea (2010)
    PANGAEA
    In:  Supplement to: Kusch, Stephanie; Rethemeyer, Janet; Schefuß, Enno; Mollenhauer, Gesine (2010): Controls on the age of vascular plant biomarkers in Black Sea sediments. Geochimica et Cosmochimica Acta, 74(24), 7031-7047, https://doi.org/10.1016/j.gca.2010.09.005
    Details
    Publication Date: 2024-07-01
    Description: Transfer of organic carbon (OC) from the terrestrial to the oceanic carbon pool is largely driven by riverine and aeolian transport. Before transport, however, terrigenous organic matter can be retained in intermediate terrestrial reservoirs such as soils. Using compound-specific radiocarbon analysis of terrigenous biomarkers their average terrestrial residence time can be evaluated. Here we show compound-specific radiocarbon (14C) ages of terrigenous biomarkers and bulk 14C ages accompanied by geochemical proxy data from core top samples collected along transects in front of several river mouths in the Black Sea. 14C ages of long chain n-alkanes, long chain n-fatty acids and total organic carbon (TOC) are highest in front of the river mouths, correlating well with BIT (branched and isoprenoid tetraether) indices, which indicates contribution of pre-aged, soil-derived terrigenous organic matter. The radiocarbon ages decrease further offshore towards locations where organic matter is dominated by marine production and aeolian input potentially contributes terrigenous organic matter. Average terrestrial residence times of vascular plant biomarkers deduced from n-C29+31 alkanes and n-C28+30 fatty acids ages from stations directly in front of the river mouths range from 900 ± 70 years to 4400 ± 170 years. These average residence times correlate with size and topography in climatically similar catchments, whereas the climatic regime appears to control continental carbon turnover times in morphologically similar drainage areas of the Black Sea catchment. Along-transect data imply petrogenic contribution of n-C29+31 alkanes and input via different terrigenous biomarker transport modes, i.e., riverine and aeolian, resulting in aged biomarkers at offshore core locations. Because n-C29+31 alkanes show contributions from petrogenic sources, n-C28+30 fatty acids likely provide better estimates of average terrestrial residence times of vascular plant biomarkers. Moreover, sedimentary n-C28 and n-C30 fatty acids appear clearly much less influenced by autochthonous sources than n-C24 and n-C26 fatty acids as indicated by increasing radiocarbon ages with increasing chain-length and are, thus, more representative as vascular plant biomarkers.
    Keywords: 613; 622; 624; 632; Batumi Seep; Black Sea; Center for Marine Environmental Sciences; Dniester River; GeoB11905-2; GeoB11931; GeoB11960; GeoB11983; GeoB11984; GeoB11985; GeoB11986; GeoB7604-1; GeoB7612-3; GeoB7614-1; GeoB7621-1; Kerch Strait; M51/4; M72/1; M72/1-242; M72/3a; M72/3b; MARUM; MC242; Meteor (1986); MIC; MIC-15; MIC-16; MIC-17; MIC-18; MIC-3; MiniCorer; MUC; MUC-2; MUC-7; MultiCorer; near Batumi Seep; NW Black Sea; Offshore Kobuleti; P110; P111; P120; P125; P128; P153; P157; P158; P167; P168; P169; P177; POS363; POS363_110-2; POS363_111-5; POS363_120-5; POS363_125-4; POS363_128-15; POS363_153-3; POS363_157-3; POS363_158-5; POS363_167-5; POS363_168-3; POS363_169-4; POS363_177-10; Poseidon; SW Black Sea
    Type: Dataset
    Format: application/zip, 6 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    Geochemistry of volcanic rocks from the Hikurangi and Manihiki Plateaus (2010)
    PANGAEA
    In:  Supplement to: Hoernle, Kaj; Hauff, Folkmar; van den Bogaard, Paul; Werner, Reinhard; Mortimer, Nick; Geldmacher, Jörg; Garbe-Schönberg, Dieter; Davy, Bryan (2010): Age and geochemistry of volcanic rocks from the Hikurangi and Manihiki oceanic Plateaus. Geochimica et Cosmochimica Acta, 74(24), 7196-7219, https://doi.org/10.1016/j.gca.2010.09.030
    Details
    Publication Date: 2024-07-01
    Description: Here we present the first radiometric age data and a comprehensive geochemical data set (including major and trace element and Sr-Nd-Pb-Hf isotope ratios) for samples from the Hikurangi Plateau basement and seamounts on and adjacent to the plateau obtained during the R/V Sonne 168 cruise, in addition to age and geochemical data from DSDP Site 317 on the Manihiki Plateau. The 40Ar/39Ar age and geochemical data show that the Hikurangi basement lavas (118-96 Ma) have surprisingly similar major and trace element and isotopic characteristics to the Ontong Java Plateau lavas (ca. 120 and 90 Ma), primarily the Kwaimbaita-type composition, whereas the Manihiki DSDP Site 317 lavas (117 Ma) have similar compositions to the Singgalo lavas on the Ontong Java Plateau. Alkalic, incompatible-element-enriched seamount lavas (99-87 Ma and 67 Ma) on the Hikurangi Plateau and adjacent to it (Kiore Seamount), however, were derived from a distinct high time-integrated U/Pb (HIMU)-type mantle source. The seamount lavas are similar in composition to similar-aged alkalic volcanism on New Zealand, indicating a second wide-spread event from a distinct source beginning ca. 20 Ma after the plateau-forming event. Tholeiitic lavas from two Osbourn seamounts on the abyssal plain adjacent to the northeast Hikurangi Plateau margin have extremely depleted incompatible element compositions, but incompatible element characteristics similar to the Hikurangi and Ontong Java Plateau lavas and enriched isotopic compositions intermediate between normal mid-ocean-ridge basalt (N-MORB) and the plateau basement. These younger (~52 Ma) seamounts may have formed through remelting of mafic cumulate rocks associated with the plateau formation. The similarity in age and geochemistry of the Hikurangi, Ontong Java and Manihiki Plateaus suggest derivation from a common mantle source. We propose that the Greater Ontong Java Event, during which ?1% of the Earth's surface was covered with volcanism, resulted from a thermo-chemical superplume/dome that stalled at the transition zone, similar to but larger than the structure imaged presently beneath the South Pacific superswell. The later alkalic volcanism on the Hikurangi Plateau and the Zealandia micro-continent may have been part of a second large-scale volcanic event that may have also triggered the final breakup stage of Gondwana, which resulted in the separation of Zealandia fragments from West Antarctica.
    Keywords: 33-317A; Deep Sea Drilling Project; Dredge; DRG; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg33; SO168; SO168_1; SO168_12; SO168_21; SO168_25; SO168_26; SO168_3; SO168_32; SO168_33; SO168_34; SO168_35; SO168_36; SO168_38; SO168_39; SO168_40; SO168_43; SO168_47; SO168_49; SO168_50; SO168_9; Sonne; South Pacific/PLATEAU; ZEALANDIA
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 10
    facet.materialart.
    Unknown
    Pore-water concentration of chloride in sediment cores and equilibrium temperatures and gas bubble analysis at ROV stations from the Vodyanitskii mud volcano (2010)
    PANGAEA
    In:  Supplement to: Sahling, Heiko; Bohrmann, Gerhard; Artemov, Yuriy G; Bahr, André; Brüning, Markus; Klapp, Stephan A; Klaucke, Ingo; Kozlova, Elena; Nikolovska, Aneta; Pape, Thomas; Reitz, Anja; Wallmann, Klaus (2009): Vodyanitskii mud volcano, Sorokin Trough, Black Sea: Geological characterization and quantification of gas bubble streams. Marine and Petroleum Geology, 26(9), 1799-1811, https://doi.org/10.1016/j.marpetgeo.2009.01.010
    Details
    Publication Date: 2024-07-01
    Description: Vodyanitskii mud volcano is located at a depth of about 2070 m in the Sorokin Trough, Black sea. It is a 500-m wide and 20-m high cone surrounded by a depression, which is typical of many mud volcanoes in the Black Sea. 75 kHz sidescan sonar show different generations of mud flows that include mud breccia, authigenic carbonates, and gas hydrates that were sampled by gravity coring. The fluids that flow through or erupt with the mud are enriched in chloride (up to 650 mmol L**-1 at 150-cm sediment depth) suggesting a deep source, which is similar to the fluids of the close-by Dvurechenskii mud volcano. Direct observation with the remotely operated vehicle Quest revealed gas bubbles emanating at two distinct sites at the crest of the mud volcano, which confirms earlier observations of bubble-induced hydroacoustic anomalies in echosounder records. The sediments at the main bubble emission site show a thermal anomaly with temperatures at 60 cm sediment depth that were 0.9 °C warmer than the bottom water. Chemical and isotopic analyses of the emanated gas revealed that it consisted primarily of methane (99.8%) and was of microbial origin (dD-CH4 = -170.8 per mil (SMOW), d13C-CH4 = -61.0 per mil (V-PDB), d13C-C2H6 = -44.0 per mil (V-PDB)). The gas flux was estimated using the video observations of the ROV. Assuming that the flux is constant with time, about 0.9 ± 0.5 x 10**6 mol of methane is released every year. This value is of the same order-of-magnitude as reported fluxes of dissolved methane released with pore water at other mud volcanoes. This suggests that bubble emanation is a significant pathway transporting methane from the sediments into the water column.
    Keywords: Center for Marine Environmental Sciences; GC; GC-1; GC-28; GeoB11913; GeoB11917; GeoB11917-2; GeoB11990; Gravity corer; M72/3a; M72/3b; MARUM; Meteor (1986); Remote operated vehicle; ROV; ROV-7; TST; T-Stick; T-stick-1; Vodyanitskii Mud Volcano
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...