10,444 Works

Silicate content in sediment ofthe Santa Monica Basin, California, supplement to: Jahnke, Richard A (1990): Early diagenesis and recycling of biogenic debris at the seafloor, Santa Monica Basin, California. Journal of Marine Research, 48(2), 413-436

Richard A Jahnke
Seafloor recycling of organic materials in Santa Monica Basin, California was examined through in situ benthic chamber experiments, shipboard whole-core incubations and pore water studies. Mass balance calculations indicate that the data are internally consistent and that the estimated benthic exchange rates compare well with those derived from deep, moored conical sediment traps and hydrographic modeling. Pore water and benthic flux observations indicate that the metabolizable organic matter at the seafloor must be composed of...

Varved sediments of the Arabian Sea, supplement to: von Rad, Ulrich; Schaaf, M; Michels, Klaus; Schulz, Hartmut; Berger, Wolfgang H; Sirocko, Frank (1999): A 5000-yr Record of Climate Change in Varved Sediments from the Oxygen Minimum Zone off Pakistan, Northeastern Arabian Sea. Quaternary Research, 51(1), 39-53

Ulrich von Rad, M Schaaf, Klaus Michels, Hartmut Schulz, Wolfgang H Berger & Frank Sirocko
The upper Holocene marine section from a kasten core taken from the oxygen minimum zone off Karachi (Pakistan) at water depth 700 m contains continuously laminated sediments with a sedimentation rate of 1.2 mm/yr and a unique record of monsoonal climatic variability covering the past 5000 years. Our chronostratigraphy is based on varve counts verified by conventional and AMS14C dating. Individual hemipelagic varve couplets are about 0.8-1.5 mm thick, with light-colored terrigenous laminae (A) deposited...

Late Pleistocene sedimentation in the Western Mediterranean Sea, supplement to: Weldeab, Syee; Siebel, Wolfgang; Wehausen, Rolf; Emeis, Kay-Christian; Schmiedl, Gerhard; Hemleben, Christoph (2003): Late Pleistocene sedimentation in the Western Mediterranean Sea: Implications for productivity changes and climatic conditions in the catchment areas. Palaeogeography, Palaeoclimatology, Palaeoecology, 190, 121-137

Syee Weldeab, Wolfgang Siebel, Rolf Wehausen, Kay-Christian Emeis, Gerhard Schmiedl & Christoph Hemleben
Sediment cores from the Western Mediterranean Sea (WMS) have been analyzed for their bulk element composition, delta18O values of planktic foraminiferal tests, and 87Sr/86Sr and 143Nd/144Nd ratios of their bulk lithogenic components. The investigated time interval comprises the last 215 kyr. Si/Al and Ti/Al ratios as well as radiogenic isotope compositions indicate changes in the provenance of the lithogenic components between glacial intervals and interglacial phases. Comparison with modern data indicates that detrital input from...

Sea-surface temperature reconstruction for sediment core GeoB1023-5, supplement to: Kim, Jung-Hyun; Schneider, Ralph R; Müller, Peter J; Wefer, Gerold (2002): Interhemispheric comparison of deglacial sea-surface temperature patterns in Atlantic eastern boundary currents. Earth and Planetary Science Letters, 194(3-4), 383-393

Jung-Hyun Kim, Ralph R Schneider, Peter J Müller & Gerold Wefer
Sediment core GeoB 1023-5 from the eastern South Atlantic was investigated at high temporal resolution for variations of sea-surface temperature (SST) during the past 22 kyr, using the alkenone (UK'37) method. SSTs increased by 3.5°C from about 18°C during the Last Ice Age (21±2 cal kyr BP) to about 21.5°C at 14.5 cal kyr BP. This warming trend associated with the deglaciation phase was followed by a cooling event with lowest SSTs near 20°C, persisting...

Organic sedimentation of ODP Sites 124-767 and 124-768, supplement to: Bertrand, Philippe; Berner, Ulrich; Lallier-Verges, Elisabeth (1991): Organic sedimentation in Celebes and Sulu Basins: type of organic matter and evaluation of organic carbon accumulation rates. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 217-225

Philippe Bertrand, Ulrich Berner & Elisabeth Lallier-Verges
This study relates the organic sedimentation characteristics to the lithostratigraphic successionsthat were observed at Site 767 (Celebes Sea) and Site 768 (Sulu Sea) during ODP Leg 124. It is based on the total organic carbon content (TOC) of the sediments, on the petrographictype and maturity of the organic matter, and on the TOC accumulation rates calculated for the lithostratigraphic units.In the Celebes and Sulu Seas sediments, the organic matter is mainly of terrestrial origin with...

Planktic foraminifers, oxygen- and carbon isotopic compositions, and radiocarbon age in bottom sediments from Core AMK4-316GC, supplement to: Barash, Max S; Yushina, Irina G; Spielhagen, Robert F (2002): Reconstructions of the Quaternary paleohydrological variability by planktonic foraminifers (North Atlantic, Reykjanes Ridge). Translated from Okeanologiya, 2002, 42(5), 744-756, Oceanology, 42(5), 711-722

Max S Barash, Irina G Yushina & Robert F Spielhagen
In a sediment core AMK4-316 (460 cm long) on the basis of radiocarbon, oxygen isotope, and lithological data climatostratigraphy is established for time interval about 145 ka. The method of factor analysis and spline interpolation applied to data on distribution of planktic foraminifera species has allowed to reconstruct average annual and seasonal temperatures and salinity at the surface and at depth 100 m. The optimum of the Last Interglaciation (5e) is characterized by maximal temperatures,...

Stable isotope and geochemical record of ODP Hole 124-769A, supplement to: Linsley, Braddock K; von Breymann, Marta T (1991): Stable isotopic and geochemical record in the Sulu Sea during the lats 750 ky: assessment of surface water variability and paleoproductivity changes. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 379-396

Braddock K Linsley & Marta T von Breymann
Deep marine late Pleistocene sediments from Ocean Drilling Program Sulu Sea Site 769 contain a high-resolution record of paleoceanographic change in this strongly monsoonal climatic setting in the tropical western Pacific. Detailed time series of planktonic foraminifer (G.ruber; white variety) d18O, d13C, and bulk CaCO3 mass accumulation rate (MAR) were generated, spanning the last 750 k.y. Sedimentation rates in this portion of the record average 8.5 cm/k.y., and vary from 4 to 16 cm/k.y.Cross spectral...

DISPRO datasets for validation of coastal hydrodynamic models, supplement to: Bailly du Bois, Pascal; Dumas, F; Solier, L; Voiseux, C (2012): In-situ database toolbox for short-term dispersion model validation in macro-tidal seas, application for 2D-model. Continental Shelf Research, 36, 63-82

Pascal Bailly du Bois, F Dumas, L Solier & C Voiseux
Appropriate field data are required to check the reliability of hydrodynamic models simulating the dispersion of soluble substances in the marine environment. This study deals with the collection of physical measurements and soluble tracer data intended specifically for this kind of validation. The intensity of currents as well as the complexity of topography and tides around the Cap de La Hague in the center of the English Channel makes it one of the most difficult...

Age determination of three sediment cores from the Eurasian continental margin, supplement to: Knies, Jochen; Nowaczyk, Norbert R; Müller, Claudia; Vogt, Christoph; Stein, Ruediger (2000): A multiproxy approach to reconstruct the environmental changes along the Eurasian continental margin over the last 150 000 years. Marine Geology, 163(1-4), 317-344

Jochen Knies, Norbert R Nowaczyk, Claudia Müller, Christoph Vogt & Ruediger Stein
Sediment cores located along the Eurasian continental margin (Arctic Ocean) have been studied to reconstruct the environmental changes in terms of waxing and waning of the Barents/Kara Sea ice-sheets, Atlantic water inflow, and sea-ice distribution over the last 150 kyr. The stratigraphy of the cores is based on stable oxygen isotopes, AMS 14C, and paleomagnetic data. We studied variations in marine and terrigenous input by a multiproxy approach, involving direct comparison of sedimentological and organo-geochemical...

n-Alkanes and lignin in bottom sediments of the West European Basin (area of the battleship Bismark wreck site), supplement to: Peresypkin, Valery I; Romankevich, Evgeny A; Belyaev, Nikolay A (2003): Contents and molecular composition of alkane-naphthene hydrocarbons, lignin and lignin-derived phenols in the bottom sediments from the West-European Basin. Translated from Okeanologiya, 2003,43(3), 371-382, Oceanology, 43(3), 347-358

Valery I Peresypkin, Evgeny A Romankevich & Nikolay A Belyaev
Three bottom sediment cores were collected from the top, slope, and foot of a small topographic high located near the West European continental rise within the Porcupine abyssal plain at the battleship Bismark wreck site. Using high-efficient gas chromatography technique we determined content and examined molecular composition of n-alkane fraction of hydrocarbons and phenol compounds of lignin. n-Alkane and phenol concentrations in bottom sediments of all three cores were low both in values per unit...

Chemical composition of hydrothermal carbonates and barites from the Deryugin Basin, Sea of Okhotsk, supplement to: Astakhova, N V; Sorochinskaya, A V (2001): Hydrothermal formations in the Deryugin Basin sediments of the Sea of Okhotsk. Translated from Okeanologiya, 2001, 41(3), 447-455, Oceanology, 41(3), 429-437

N V Astakhova & A V Sorochinskaya
Data on hydrothermal activity in the Deryugin Basin (Sea of Okhotsk) are reviewed. Barites and carbonates found in sediment cores sampled at feet of hydrothermal mounds were subdivided into recycled and authigenic types. Recycled minerals were represented by crystals and aggregations of travertine-like barite and fragments of barite and carbonate tubes. Authigenic formations included: (1) carbonate nodules; (2) barite micronodules; (3) transparent colorless barite that generated numerous small nests and filled cavities in sediments; (4)...

Geochemistry of ODP Leg 124 sediments, supplement to: Brass, Garrett W; Sims, Don; Calvert, Stephen E; von Breymann, Marta T (1991): Data Report: Major- and minor-element analysis of sediments from Sites 767, 768, and 769. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 531-539

Garrett W Brass, Don Sims, Stephen E Calvert & Marta T von Breymann
This data report tabulates results of X-ray fluorescence analysis of sediments from three sites drilled during Ocean Drilling Program Leg 124. Two of these sites were drilled in the abyssal plain of the Celebes (767) and Sulu (768) seas, in water depths of 4905 and 4385 m, respectively. The seismic records at these sites reveal a sedimentary section that appears complete enough to obtain a good stratigraphic history of the basins, one of the main...

Chemistry of volcanic ash from Celebes and Sulu Sea Basins, supplement to: Pouclet, André; Pubellier, Manuela; Spadea, Piera (1991): Volcanic ash from Celebes and Sulu Sea Basins off the Philippines (Leg 124): petrography and geochemistry. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 467-487

André Pouclet, Manuela Pubellier & Piera Spadea
During Leg 124, off the Philippines, volcanic material was recovered in deep-sea sediments dating from the late Oligocene in the Celebes Sea Basin, and from the early Miocene in the Sulu Sea Basin. Chemical and petrological studies of fallout ash deposits are used to characterize volcanic pulses and to determine their possible origin. All of the glass and mineral compositions belong to medium-K and high-K calc-alkaline arc-related magmatic suites including high-Al basalts, pyroxene-hornblende andesites, dacites,...

Phytoplankton composition and biomass and its fluorescence parameters in waters of the Nha Trang Bay, South China Sea, supplement to: Il'yash, L V; Matorin, D N; Kol'tsova, T I; Ho Hi Sham (2004): Spatial Distribution and Daily Dynamics of Phytoplankton in Nhatrang Bay of the South China Sea. Translated from Okeanologiya, 2004, 44(2), 238-248, Oceanology, 44(2), 219-229

L V Il'yash, D N Matorin, T I Kol'tsova & Ho Hi Sham
Species composition and abundance of phytoplankton and chlorophyll concentration were measured at three horizons of 9 stations in the Nha Trang Bay of the South China Sea in March 1998. Vertical distribution of fluorescence parameters, temperature and irradiance were measured in the 0-18 m layer of the water column at 21 stations. It was shown that according to biomass (B) and chlorophyll concentration (Chl) the Bay is mezotrophic. B and Chl in the water column...

Upper Oligocene to Quaternary diatom biostratigraphy of ODP Hole 121-758A in the equatorial Indian Ocean, supplement to: Fourtanier, Elisabeth (1991): Diatom biostratigraphy of equatorial Indain Ocean Site 758. In: Weissel, J; Peirce, J; Taylor, E; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 121, 189-208

Elisabeth Fourtanier
Diatoms occur at Site 768 in the equatorial Indian Ocean in three intervals: (1) Quaternary to upper Pliocene, (2) lower Miocene to upper Oligocene, and (3) upper Campanian. The diatom assemblages are documented for each of these intervals. Similarities between the diatom flora in the equatorial Pacific and at Site 758 allow diatom zonations established in the equatorial Pacific to be used at Site 758, and the presence of a hiatus of about 3-m.y. duration...

Cretacoeus planktonic foraminifera from Exmouth Plateau, Australia, supplement to: Wonders, A A H (1992): Cretaceous planktonic foraminiferal biostratigraphy, Leg 122, Exmouth Plateau, 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, 587-599

A A H Wonders
An Albian to Maestrichtian planktonic foraminiferal biozonation for the Exmouth Plateau is proposed, based on the detailed analysis of pelagic successions at Sites 761 and 762 and correlation with Site 763. Twelve zones and two subzones are recognized. The Albian and Cenomanian zones, currently only three, can probably be subdivided into several more. The ranges of the Tethyan index species Globotruncana ventricosa and Globotruncanita elevata are discussed and found to differ from the ones usually...

Lower Cretaceous radiolarians from the northwestern Australian margin, supplement to: Baumgartner, Peter O (1992): Lower Cretaceous radiolarian biostratigraphy and biogeography off northwestern Australia (ODP sites 765 and 766 and DSDP Site 261), Argo Abyssal Plain and lower Exmouth Plateau. In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 299-342

Peter O Baumgartner
During Leg 123, abundant and well-preserved Neocomian radiolarians were recovered at Site 765 (Argo Abyssal Plain) and Site 766 (lower Exmouth Plateau). The assemblages are characterized by a scarcity or absence of Tethyan taxa. The Berriasian-early Aptian radiolarian record recovered at Site 765 is unique in its density of well-preserved samples and in its faunal contents. Remarkable contrasts exist between radiolarian assemblages extracted from claystones of Site 765 and reexamined DSDP Site 261, and faunas...

Early Cretaceous dinoflagellate cycsts from ODP Hole 123-765C, supplement to: Helby, R; McMinn, Andrew (1992): A preliminary report of early Cretaceous dinocyst floras from Site 765, Argo Abyssal Plain, Northwest Australia. In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 407-420

R Helby & Andrew McMinn
Results of a preliminary study of Early Cretaceous dinocyst assemblages from Site 765 on the Argo Abyssal Plain, off northwestern Australia, are presented. The palynological sequence is interpreted in terms of Australian zones and is, in descending order, the late Aptian Diconodinium davidii Zone (Cores 123-765C-33R to -39R), the middle to early Aptian Odontochitina operculata Zone (Cores 123-765C-40R to -49R), the Barremian Muderongia australis Zone (Cores 123-765C-50R to -54R), and the Berriasian lower Batioladinium reticulatum...

Isotopic composition and physical oceanography of water profiles from Greenland, supplement to: Israelson, C; Buchardt, B (1999): Strontium and oxygen isotope composition of East Greenland rivers and surface waters: Implication for palaeoenvironmental interpretation. Palaeogeography, Palaeoclimatology, Palaeoecology, 153(1-4), 93-104

C Israelson & B Buchardt
Isotopic composition of strontium and oxygen and strontium concentrations from 4 hydrographic sites in Scoresby Sund Fjord and 6 rivers draining the adjacent Jameson Land have been investigated. Schuchert Flod, the major river on Jameson Land, erodes a large celestite (SrSO4) deposit. Dissolved Sr in Schuchert Flod has 87Sr/86Sr = 0.7137 and is responsible for most of the continental Sr flux to the fjord. The Sr isotope data have been used to construct a mixing...

Geochemistry of the oceanic crust from ocean drilling samples, supplement to: Kurnosov, Victor B; Zolotarev, Boris P; Artamonov, Andrey V; Lyapunov, Sergey M; Kashintsev, Georgy L; Chudaev, Oleg V; Sokolova, Alla L; Garanina, Svetlana A (2008): Alteration effects in the upper oceanic crust - data and comments (Technical Note). Geological Institute of the Russian Academy of Sciences, Transactions, vol. 581. Nauka Publ. (Moscow); Leonov, M.G. (Ed.), 1046 pp

Victor B Kurnosov, Boris P Zolotarev, Andrey V Artamonov, Sergey M Lyapunov, Georgy L Kashintsev, Oleg V Chudaev, Alla L Sokolova & Svetlana A Garanina
This book presents new data on chemical and mineral compositions and on density of altered and fresh igneous rocks from key DSDP and ODP holes drilled on the following main tectonomagmatic structures of the ocean floor:1. Mid-ocean ridges and abyssal plains and basins (DSDP Legs 37, 61, 63, 64, 65, 69, 70, 83, and 91 and ODP Legs 106, 111, 123, 129, 137, 139, 140, 148, and 169);2. Seamounts and guyots (DSDP Legs 19, 55,...

Miocene radiolarians of the Sulu Sea, supplement to: Scherer, Reed P (1991): Miocene radiolarians of the Sulu Sea, Leg 124. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 359-368

Reed P Scherer
Radiolarians are sporadic in sediments collected in the Sulu Sea during ODP Leg 124. Due to the generally poor preservation and low abundance of radiolarians in Sulu Sea sediments, no biostratigraphic datums are well defined, although three radiolarian zones are identified. Most samples containing radiolarians are pelagic or hemipelagic clays with varying proportions of volcanic ash. Detailed analysis of Sulu Sea radiolarians was limited to Miocene successions. Pliocene and Quaternary occurrences of radiolarians were noted...

Dinoflagellate cysts of ODP Leg 101 holes, supplement to: Masure, Edwige (1988): Albian-Cenomanian dinoflagellate cysts from sites 627 and 635, Leg 101, Bahamas (see chapter correction). In: Austin, JA Jr.; Schlager, W; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 101, 121-138

Edwige Masure
The Albian-Cenomanian sediments in Holes 627B and 635B contain diverse dinoflagellate-cyst assemblages, which show affinities with coeval assemblages from offshore Morocco and northwest Europe. A total of 34 samples were analyzed from the shallow-water platform sediments and neritic marly chalk of Hole 627B and from the argillaceous chalk and limestone of Hole 635B. Dinoflagellate cysts indicate that the top of the shallow-water platform drilled at Hole 627B must be attributed to the late Albian. Dinocysts...

Late Pliocene stable oxygen isotope record of the Mediterranean Sea, supplement to: Combourieu-Nebout, Nathalie; Vergnaud-Grazzini, Colette (1991): Late Pliocene northern hemisphere glaciations: the continental and marine responses in the central Mediterranean. Quaternary Science Reviews, 10(4), 319-334

Nathalie Combourieu-Nebout & Colette Vergnaud-Grazzini
Detailed pollen analyses and oxygen isotope records of three foraminiferal species, Globigerina bulloides, Uvigerina peregrina and Cibicides pachyderma, from the Semaforo and Vrica composite sections (Crotone, southern Italy) have been compared to the global climatic changes depicted by late Pliocene-early Pleistocene foraminiferal d18O records of Site 607 in the North Atlantic, and Hole 653A in the Tyrrhenian basin, West Mediterranean. Major overturns in the mid-altitude vegetation are shown near isotopic stages 82, 60, 58 and...

Sea surface temperature and export productivity reconstructions of sediments off the western Iberian margin, supplement to: Salgueiro, Emilia; Voelker, Antje H L; de Abreu, Lucia; Abrantes, Fatima F; Meggers, Helge; Wefer, Gerold (2010): Temperature and productivity changes off the western Iberian margin during the last 150 ky. Quaternary Science Reviews, 29(5-6), 680-695

Emilia Salgueiro, Antje H L Voelker, Lucia de Abreu, Fatima F Abrantes, Helge Meggers & Gerold Wefer
Present day hydrographic conditions along the western Iberian margin are characterized by seasonal upwelling with filaments that can penetrate more than 200 km into the open ocean and constitute areas of cold and highly productive waters. In order to investigate spatial and temporal gradients in temperature and productivity conditions during the last 150 ky, high-resolution proxy records were generated in 3 cores (SU92-03, MD95-2040, MD95-2042), located along the Iberian coast between 43°12'N and 37°48'N and...

Paleomagnetic of ODP Leg 101 sites, supplement to: Sager, William W (1988): Paleomagnetism of Ocean Drilling Program Leg 101 sediments: magnetostratigraphy, magnetic diagenesis, and paleolatitudes. In: Austin, JA Jr.; Schlager, W; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 101, 327-360

William W Sager
Paleomagnetic measurements were made on 913 samples from 11 holes (626B, 626C, 627B, 628A, 630A, 631A, 632A, 632B, 633A, 634A, and 635B) drilled in and around the Bahamas carbonate bank during Ocean Drilling Program Leg 101. These samples displayed a wide range of magnetic intensities (from about 1.0 A/m to 1.6 * 10**- 6 A/m) and magnetic behavior. Most samples were weakly magnetized and had low mean destructive fields; however, sediments from sections of several...

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  • University of Iowa
  • Leibniz-Zentrum für Marine Tropenforschung, Bremen, Germany
  • Charles Darwin Foundation
  • Deutsches Institut für Entwicklungspolitik
  • Leibniz-Institut für Medienforschung | Hans-Bredow-Institut
  • Alfred Wegener Institute - Research Unit Potsdam
  • Alfred Wegener Institute - Wadden Sea Station Sylt
  • Naturhistorisches Museum Basel
  • Boston University