973 Works

Neogen carbonate and stable isotope record of ODP Hole 120-751A, supplement to: Mackensen, Andreas; Barrera, Enriqueta C; Hubberten, Hans-Wolfgang (1992): Neogene circulation in the southern Indian Ocean: evidence from benthic foraminifers, carbonate data, and stable isotope analyses (Site 751). In: S.W. Wise, JR., R. Schlich, et al., Proceedings of the Ocean Drilling Program, Scientific Results, 120, College Station, TX (Ocean Drilling Program), 867-880

Andreas Mackensen, Enriqueta C Barrera & Hans-Wolfgang Hubberten
Lower Miocene through upper Pleistocene benthic foraminifer assemblage records from Ocean Drilling Program Site 751 on the Southern Kerguelen Plateau (57°44'S, water depth 1634 m) were combined with benthic and planktonic foraminifer oxygen and carbon isotope records and high-resolution CaCO3 data from the same site. Implications for the Neogene productivity and paleoceanography of the southern Indian Ocean are discussed. We used distinctive features of the Miocene d18O and d13C curves for stratigraphic correlation.Coinciding with a...

Calcareous nannofossils in sediments of the southeast Pacific, supplement to: Wei, Wuchang (1992): Calcareous nannofossil stratigraphy and reassessment of the Eocene glacial record in subantarctic piston cores of the southeast Pacific. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 1093-1104

Wuchang Wei
This study provides the first detailed documentation of calcareous nannofossil assemblages in Eocene subantarctic Eltanin piston cores recovered from the southeast Pacific Ocean. These Eltanin cores are important because they have been reported to contain ice-rafted quartz. The present study confirms early and middle Eocene ages for the cores and dates them more precisely using calcareous nannofossils. Semiquantitative study of the nannoflora indicates that they are of a warmer water character than those from the...

Rare earth element contents and sources in phosphorites from Pacific seamounts, supplement to: Baturin, Gleb N; Yushina, Irina G (1998): Rare-earth elements in phosphorites from the Pacific seamounts and the depth of phosphorite formation. Translated from Okeanologiya, 1998, 38(4), 612-621, Oceanology, 38(4), 556-565

Gleb N Baturin & Irina G Yushina
Distribution of rare earth elements (REE) was studied in phosphorites collected from seamounts at depths from about 400 to 3600 m. In general phosphorites are characterized by high REE con¬tent, by a strong negative Ce anomaly, by a slight positive Gd anomaly, and by slight enrichment in heavy REE, which is also characteristic of seawater, where, to certain extent, composition of REE depends on depth. Comparison of REE composition in phosphorites and in seawater from...

Pollen record from Golkow, Poland, supplement to: Janczyk-Kopikowa, Zofia (1966): Interglacjal eemski w Golkowie kolo Warszawy (Eemian Interglacial at Golkow near Warsaw). Kwartalnik Geologiczny, 10(2), 453-461

Zofia Janczyk-Kopikowa
Janczyk-Kopikowa (1966): The series of the organic deposits, developed in the vicinity of Golkow near Warsaw as oil shales and peats, was laid down in a grough valley and now rests on the deposits of the Middle Polish Glaciation (Riss). The organic deposits are overlain by the fluviale deposits of the North Polish Glaciation (Würm). The locality Golkow occurs beyond the extent of the continental glacier of this glaciation.Polen analysis completed by microfloristic examinations allows...

Abundance and biomass of phytoplankton in the water column in the northern subtropical Pacific, supplement to: Semina, Galina I; Mikaelyan, A S; Belyaeva, Galina A (1997): Phytoplankton of different size groups of the northern subtropical zone of the Pacific Ocean. Translated from Okeanologiya, 1997, 37(5), 730-738, Oceanology, 37(5), 657-665

Galina I Semina, A S Mikaelyan & Galina A Belyaeva
Species composition, cell number and biomass of pico-, nanno- and microalgae were estimated for open waters of the northern subtropical zone of the Pacific Ocean and coastal waters off the North America. Total phytoplankton abundance was also evaluated. Productivity of these waters was newly estimated. Distribution of phytoplankton, its size, and taxonomic groups were compared with chlorophyll distribution estimated during the same cruise. Dissimilarities between distribution of small and large forms result from their adaptation...

Age determination of ODP Leg 120 samples, supplement to: Whitechurch, Hubert; Montigny, R; Sevigny, James H; Storey, Michael; Salters, Vincent J M (1992): K-Ar and 40Ar/39Ar ages of central Kerguelen Plateau basalts. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 71-77

Hubert Whitechurch, R Montigny, James H Sevigny, Michael Storey & Vincent J M Salters
Conventional K-Ar and 40Ar/39Ar analyses on whole-rock samples are reported for basaltic samples retrieved on the Central and Southern Kerguelen plateaus during Ocean Drilling Program Leg 120. Sites 747, 749, and 750 recovered basalts from the plateau basement, whereas Site 748 drilled a lava flow interbedded with sediments of probable Albian age.The freshest core basalts from the basement yielded dates falling in the 110-100 m.y. interval. Sample 120-749C-15R-3 (26-31 cm) gave conventional K-Ar, total fusion,...

Phytoplankton biomass, chlorophyll concentration, and variability of lipid content in Calanus euxinus in the Black Sea in June 1991, supplement to: Yuneva, T V; Svetlichnyi, L S; Yunev, Oleg A; Georgieva, L V; Senichkina, Ludmila G (1997): Spatial variability of the lipid content in Calanus euxinus in relation to the chlorophyll concentration and phytoplankton biomass. Translated from Okeanologiya, 1997, 37(5), 745-752, Oceanology, 37(5), 672-678

T V Yuneva, L S Svetlichnyi, Oleg A Yunev, L V Georgieva & Ludmila G Senichkina
During field studies relationships between chlorophyll concentrations, phytoplankton biomass (total, individual sizes and species) and level of accumulation of total lipids, wax esters, triacylglycerols, and phospholipids in C. euxinus (copepodites V and females) were studied. These relationships allowed to display not only simple trophic relations between isolated parts of the C. euxinus population and phytoplankton, but also selective role of individual algae species in forming lipid reserves too. Besides it was found that geographical variability...

Geochemistry of basalts of the Indian Ocean, supplement to: Ludden, John N; Dionne, B (1992): The geochemistry of oceanic crust at the onset of rifting in the Indian Ocean. In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 791-799

John N Ludden & B Dionne
Indian Ocean crust formed at Sites 765 and 766 is geochemically comparable to that presently forming in the Red Sea. In both cases, we interpret the crust as reflecting high degrees of mantle melting that are associated with an enhanced thermal gradient below recently rifted continental lithosphere. Asthenospheric melts formed in this environment are rich in CaO and FeO, poor in Na2O and Al2O3, and characterized by depleted rare earth element (REE) profiles ([La/Sm]n approximately...

Magnesium/Calcium ratios and sea surface temperature estimation for sediments of the Timor Sea, supplement to: Xu, Jian; Kuhnt, Wolfgang; Holbourn, Ann; Andersen, Nils; Bartoli, Gretta (2006): Changes in the vertical profile of the Indonesian Throughflow during Termination 2: Evidence from the Timor Sea. Paleoceanography, 21(4), PA4202

Jian Xu, Wolfgang Kuhnt, Ann Holbourn, Nils Andersen & Gretta Bartoli
We use a multiproxy approach to monitor changes in the vertical profile of the Indonesian Throughflow as well as monsoonal wind and precipitation patterns in the Timor Sea on glacial-interglacial, precessional, and suborbital timescales. We focus on an interval of extreme climate change and sea level variation: marine isotope (MIS) 6 to MIS 5e. Paleoproductivity fluctuations in the Timor Sea follow a precessional beat related to the intensity of the Australian (NW) monsoon. Paired Mg/Ca...

Stable isotopic and carbonate cyclicity in deep sea sediments from different DSDP Holes, supplement to: Thierstein, Hans R; Roth, Peter H (1991): Stable isotopic and carbonate cyclicity in Lower Cretaceous deep-sea sediments: Dominance of diagenetic effects. Marine Geology, 97(1-2), 1-34

Hans R Thierstein & Peter H Roth
Oxygen and carbon isotopic variability of the dominant (<38 µm) carbonate fraction within bedded, organic-carbon rich Lower Cretaceous sediment intervals from various DSDP sites are closely correlated with preservational changes in the carbonates. Isotopic fluctuations are absent where carbonate contents vary little and where the carbonate fraction is dominated by biogenic phytoplankton remains. Within each of the studied intervals oxygen and carbon isotopic ratios become increasingly more negative in samples with carbonate contents higher than...

Magnetic properties of Triassic sediments of the Wombat Plateau, supplement to: Galbrun, Bruno (1992): Triassic (Upper Carnian-Lower Rhaetian) magnetostratigraphy of Leg 122 sediments, Wombat Plateau, Northwest Australia. In: von Rad, U; Haq, BU; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 122, 685-698

Bruno Galbrun
During drilling at Sites 759, 760, and 761 of Leg 122 (Exmouth Plateau, northwest Australia), a thick section of Upper Triassic sediments was recovered. Paleomagnetic analyses were made on 398 samples from Holes 759B, 760A, 760B, and 761C. Progressive thermal demagnetization, alternating field demagnetization, or mixed treatment removed an initial unstable component and isolated a characteristic remanent magnetization which is of normal or reversed polarity. The magnetostratigraphic results allow us to propose a magnetic polarity...

Feeding parameters of copepods from upwelling areas, supplement to: Drits, Alexander V; Pasternak, Anna F; Semenova, Tatyana N; Flint, Mikhail V (1990): Feeding of herbivorous copepods in upwelling areas. Diurnal rhythms, rations and consumption of phytoplankton. Oceanology, 30(2), 229-235

Alexander V Drits, Anna F Pasternak, Tatyana N Semenova & Mikhail V Flint
Feeding patterns of mass herbivorous copepods in upwelling areas are investigated. Daily rations and aspects of their formation are examined in Calanoides carinatus (Benguela upwelling), Calanus pacificus (off the California coast), and Calanus australis (Peru upwelling). Rations were calculated based on gut plant pigment contents obtained at daily stations using laser spectrofluorometry, experimental data on the rate of gut evacuation and data on the carbon/chlorophyll ratio in phytoplankton and particulate matter at the respective stations....

Sedimentological and pollen records from the fjord region of southern Chile, supplement to: Lamy, Frank; Kilian, Rolf; Arz, Helge Wolfgang; Francois, Jean-Pierre; Kaiser, Jérôme; Prange, Matthias; Steinke, Tatjana (2010): Holocene changes in the position and intensity of the southern westerly wind belt. Nature Geoscience, 3(10), 695-699

Frank Lamy, Rolf Kilian, Helge Wolfgang Arz, Jean-Pierre Francois, Jérôme Kaiser, Matthias Prange & Tatjana Steinke
The position and intensity of the southern westerly wind belt varies seasonally as a consequence of changes in sea surface temperature. During the austral winter, the belt expands northward and the wind intensity in the core decreases. Conversely, during the summer, the belt contracts, and the intensity within the core is strengthened. Reconstructions of the westerly winds since the last glacial maximum, however, have suggested that changes at a single site reflected shifts throughout the...

Cd/Ca ratios and element analyses of ODP Hole 115-709C, supplement to: Andrews, Julian E; Funnell, Brian M; Jickells, Timothy D; Shackleton, Nicholas J; Swallow, Jane E; Williams, Ann C; Young, Kathryn A (1990): Preliminary assessment of cyclic variations in foraminifers, barite, and cadmium/calcium ratios in Early Pleistocene sediments from Hole 709C (equatorial Indian Ocean). In: Duncan, RA; Backmann, J; Peterson, LC; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 115, 611-619

Julian E Andrews, Brian M Funnell, Timothy D Jickells, Nicholas J Shackleton, Jane E Swallow, Ann C Williams & Kathryn A Young
During three to four d18O cycles (determined on Globigerinoides ruber), more positive d18O (= higher global ice volume) values correlated with higher Globorotalia menardii percentages, total numbers of benthic foraminifers, number of benthic foraminifer species, and the percent of total foraminifers composed of benthic foraminifers. During the same intervals, barite and insoluble residues also generally recorded higher values; however, there was no clear evidence of systematic variation in cadmium/calcium ratios (in benthic foraminifers). Maximum percentages...

Water, bottom deposits, and macrobenthos in the south part of the East Siberian Sea in September 2003, supplement to: Gukov, Aleksander Yu; Dudarev, Oleg V; Semiletov, Igor P; Charkin, Alexander N; Gorshkova, Ya S (2005): Distribution of macrobenthos biomass and bottom biocoenoses in the southern East Siberian Sea. Translated from Okeanologiya, 2005, 45(6), 889-896, Oceanology, 45(6), 741-748

Aleksander Yu Gukov, Oleg V Dudarev, Igor P Semiletov, Alexander N Charkin & Ya S Gorshkova
Macrobenthos biomass and bottom biocoenoses were studied in the sublittoral zone of the southern East Siberian Sea. The macrobenthos is characterized by relatively high abundance (from 30 to 2680 #/m**2), biomass (from 0.25 to 578.8 g/m**2), and diversity (83 species in total). Lateral distribution of macrobenthos biomass correlates with a substrate type and salinity and is substantially higher in areas washed by the Arctic water mass than in estuaries with mixed fresh and Arctic waters...

Mercury concentrations in waters of the Atlantic Ocean and Mediterranean Sea, supplement to: Kulebakina, L G; Kozlova, Svetlana I (1985): Distribution of dissolved and suspended forms of mercury in the 0-100-m layer of the Atlantic Ocean and the Mediterranean Sea. Oceanology, 25(2), 191-195

L G Kulebakina & Svetlana I Kozlova
Total mercury concentration in waters of the Atlantic Ocean and Mediterranean Sea measured in January-April 1982 varied from 0.007 to 0.192 µg/l. Particulate form was 1.6-16% of dissolved form. Inorganic mercury accounted for 16-67% of dissolved mercury. Total mercury concentration in the surface film was 0.74-1.85 µg/l, 10-40 times higher than in seawater. Concentration of particulate form in the film was from 100 to 400 times higher than in seawater.

Carbonate composition of Pliocene-Pleistocene sediments of the Maledives, supplement to: Droxler, André W; Haddad, Geoffrey A; Mucciarone, David A; Cullen, James L (1990): Pleistocene-Pliocene aragonite cyclic variations in holes 714A and 716B (the Maledives) compared with hole 633A (the Bahamas): records of climate-induced CaCO3 preservation at intermediate water depths. In: Duncan, RA; Backmann, J; Peterson, LC; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 115, 539-577

André W Droxler, Geoffrey A Haddad, David A Mucciarone & James L Cullen
Ocean Drilling Program (ODP) Leg 115 post-cruise research was focused on two Maldives sites, more precisely on the top 108 m of Hole 716B (water depth, 540 m), equivalent to the past 3.5 m.y., and the top 19.5 m of Hole 714A (water depth, 2195 m), equivalent to the past 0.55 m.y. These sediments consist of mostly unaltered and undisturbed, turbidite-free, periplatform ooze. Results of our research are compared with existing data on Hole 633A...

Zooflagellate production in the Central Indian Ocean, supplement to: Kopylov, A I (1985): Determination of zooflagellate production in the Central Indian Ocean. Oceanology, 25(4), 520-522

A I Kopylov
Multiplication rate and production of zooflagellates were determined in the Central Indian Ocean. In the surface zone of the areas studied zooflagellate generation time ranged from 24 to 48 hours and production from 0.5 to 10.6 mg/m**3. The lowest multiplication rate was found at depth of 100 m (92 hours); no multiplication was found in water samples taken from depth of 120 m or below.

Chlorophyll-a concentrations in phytoplankton fractions in waters of the Black Sea, supplement to: Krupatkina, D K; Ostrovskaya, Nadezhda A (1984): Variability and daily chlorophyll-a patterns in large and small phytoplankton fractions in various regions of the Black Sea in late summer. Oceanology, 24(6), 727-732

D K Krupatkina & Nadezhda A Ostrovskaya
Comparison of daily and diel variability of chlorophyll-a concentration at three long-term stations in meso- and eutrophic regions indicates that their values are similar. Daily patterns of deviation in chlorophyll concentration in small and large phytoplankton fraction from average daily values are presented. In conformity with a hypothesis of daily removal rhythms correlated with changes in diel light-dark periods, it was concluded that the mesotrophic region during the dark period is characterized by predominance of...

Heavy metal contents in bottom sediments and Fe-Mn nodules and their states in bottom and interstitial waters from the Clarion-Clipperton province, supplement to: Tikhomirov, Vladimir N; Shakhova, N F (1987): States of certain metals in bottom and interstitial waters of the Pacific Ocean as related to the formation of Fe-Mn nodules. Oceanology, 27(1), 44-48

Vladimir N Tikhomirov & N F Shakhova
Ultrafiltration with tagged atoms was used to study physicochemical states (dissolved, colloidal, suspended) of Mn, Co, Ni, Zn, and Ce in bottom and interstitial waters collected in two areas of the Pacific Ocean with Fe-Mn nodules of different size, shape, structure and origin in different abundances. Use of filters with pore diameter of 0.05 ?m allowed to identify colloidal forms of the metals in bottom sediments and interstitial waters. It was demonstrated experimentally that differences...

Trace metals of interstitial waters of ODP Leg 116 samples, supplement to: Boulègue, Jacques; de Kersabiec, Anne-Marie; Vidot, Francoise (1990): Trace metals (Ba, Sr, Mn, Cu) in interstitial waters, Leg 116. In: Cochran, JR; Stow, DAV; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 116, 117-125

Jacques Boulègue, Anne-Marie de Kersabiec & Francoise Vidot
Trace metals, for which we detected no pollution due to drilling and pore-water extraction procedures, are studied in the pore waters of Ocean Drilling Program Leg 116 sediments. Strontium is controlled by dissolution of biogenic carbonates. Barium is controlled by barite and diagenesis. Manganese is controlled by organic matter diagenesis and carbonate. Copper is controlled by hyperfiltration-osmotic effects in alternating clay-sand units. In addition, barium, manganese, and copper are also enriched by upwelling of hot...

Stable isotope ratios and organic carbon accumulation rates of late Pleistocene sediments of ODP Hole 117-724C, supplement to: Zahn, Rainer; Pedersen, Thomas F (1991): Late Pleistocene evolution of surface and mid-depth hydrography at the Oman margin: planktonic and benthic isotope records at Site 724. In: Prell, WL; Niitsuma, N; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 117, 291-308

Rainer Zahn & Thomas F Pedersen
Stable isotope records of coexisting benthic foraminifers Uvigerina spp. and Cibicidoides spp. and planktonic G. ruber (white variety) from Site 724 are used to study the late Pleistocene evolution of surface and intermediate water hydrography (593 m water depth) at the Oman Margin. Glacial-interglacial d18O amplitudes recorded by the benthic foraminifers are reduced when compared to the estimated mean ocean changes of d18Oseawater . Epibenthic d13C remains at its modern level or is increased during...

Layer-by-layer correlation of ODP Leg 117 sites, supplement to: Niitsuma, Nobuaki (1991): Layer-by-layer correlation of drilled sediments from Owen Ridge, Oman margin, and Indus Fan. In: Prell, WL; Niitsuma, N; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 117, 147-160

Nobuaki Niitsuma
One hundred thirty-one marker horizons relating to the distinct and traceable layers were described for the Owen Ridge and Oman Margin sites. The correlations incorporated the calculations of true depth, corrected for coring disturbance and gas expansion. Intersite correlation of marker horizons has been improved based on color density data, measured with video densitometer, and oxygen isotope stratigraphic data.Distinct hiatuses were detected by the intersite correlation of the marker horizons in the Owen Ridge. The...

Magnetostratigraphy of ODP Leg 117 sites, supplement to: Hayashida, Akira; Bloemendal, Jan (1991): Magnetostratigraphy of Leg 117 sediments from the Owen Ridge and the Oman Margin, western Arabian Sea. In: Prell, WL; Niitsuma, N; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 117, 161-179

Akira Hayashida & Jan Bloemendal
Magnetic measurements were made on discrete samples from the Neogene pelagic and hemipelagic sediments recovered during ODP Leg 117. Polarity zones, usually identified for uppermost 200 m, were correlated to the geomagnetic polarity time scale referring to biostratigraphic datums. Quality and resolution of the magnetostratigraphy was partly limited by the weak and relatively soft magnetic character of almost all intervals, and core disturbance by gas expansion at some Oman Margin sites. Clear polarity records of...

Elements and isotopic measurements of magmatic rock samples from ODP Hole 104-642E, supplement to: Meyer, Romain; Hertogen, Jan GH; Pedersen, Rolf B; Viereck-Götte, Lothar; Abratis, Michael (2009): Interaction of mantle derived melts with crust during the emplacement of the Vøring Plateau, N.E. Atlantic. Marine Geology, 261(1-4), 3-16

Romain Meyer, Jan GH Hertogen, Rolf B Pedersen, Lothar Viereck-Götte & Michael Abratis
Trace element and isotopic signatures of magmatic rock samples from ODP Hole 642E at the Vøring Plateau provide insight into the interaction processes of mantle melt with crust during the initial magma extrusion phases at the onset of the continental breakup. The intermediate (basaltic-andesitic) to felsic (dacitic and rhyolitic) Lower Series magmas at ODP Hole 642E appear to be produced by large amounts of melting of upper crustal material. This study not only makes use...

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  • 2011
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    973