983 Works

Global data compilation of benthic data sets II, supplement to: Seiter, Katherina; Hensen, Christian; Zabel, Matthias (2005): Benthic carbon mineralization on a global scale. Global Biogeochemical Cycles, 19, GB1010

Katherina Seiter, Christian Hensen & Matthias Zabel
In this study we present a global distribution pattern and budget of the minimum flux of particulate organic carbon to the sea floor (J POC alpha). The estimations are based on regionally specific correlations between the diffusive oxygen flux across the sediment-water interface, the total organic carbon content in surface sediments, and the oxygen concentration in bottom waters. For this, we modified the principal equation of Cai and Reimers [1995] as a basic monod reaction...

Magnetic properties and paleomagnetism of basalts from ODP Leg 107 basalts, supplement to: Vigliotti, Luigi; Torii, Masayuki; Channell, James E T (1990): Magnetic properties and paleomagnetism of basalts from Leg 107 (Holes 651A and 655B). In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 99-110

Luigi Vigliotti, Masayuki Torii & James E T Channell
The basalts recovered at Holes 651A and 655B appear to carry a single component remanent magnetization, which is generally of reversed polarity. These magnetizations are consistent with eruption during the Matuyama (651A) and Gilbert (655B) polarity epochs.The blocking temperature spectra and the Js/T curves indicate that titanomaghemite is the principal remanence carrier. The lower mean destructive field (MDF) and higher susceptibility at 651A probably indicates a lower mean oxidation state at this hole relative to...

Carbon and Lead chemistry of sediments from the Middle Atlantic Bight, supplement to: Anderson, Robert F; Rowe, Gilbert T; Kemp, P F; Trumbore, S; Biscaye, Pierre Eginton (1994): Carbon budget for the mid-slope depocenter of the Middle Atlantic Bight. Deep Sea Research Part II: Topical Studies in Oceanography, 41(2-3), 669-703

Robert F Anderson, Gilbert T Rowe, P F Kemp, S Trumbore & Pierre Eginton Biscaye
A mass budget was constructed for organic carbon on the upper slope of the Middle Atlantic Bight, a region thought to serve as a depocenter for fine-grained material exported from the adjacent shelf. Various components of the budget are internally consistent, and observed differences can be attributed to natural spatial variability or to the different time scales over which measurements were made. The flux of organic carbon to the sediments in the core of the...

Estimation of cooling of lavas from Serocki volcano, supplement to: Grove, Timothy L (1990): Cooling histories of lavas from Serocki Volcano. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 3-8

Timothy L Grove
A dynamic crystallization study was undertaken to provide a framework for linking the textural variations observed in the Hole 648B lavas with the size and morphology of cooling units inferred from drilling and submersible observation. The textures produced in cooling rate experiments carried out using a Serocki lava (ALV-1690-20) are comparable to the groundmass textural characteristics of lavas from Serocki volcano. The results of the dynamic crystallization study provide a quantitative link between texture, cooling...

Methane and hydrogen sulfide in porewater of sediment cores from the upwelling area off Namibia, supplement to: Niewöhner, Christine; Hensen, Christian; Kasten, Sabine; Zabel, Matthias; Schulz, Horst D (1998): Deep sulfate reduction completely mediated by anaerobic methane oxidation in sediments of the upwelling area off Namibia. Geochimica et Cosmochimica Acta, 62(3), 455-464

Christine Niewöhner, Christian Hensen, Sabine Kasten, Matthias Zabel & Horst D Schulz
Porewater concentrations of sulfate, methane, and other relevant constituents were determined on four sediment cores from the high productivity upwelling area off Namibia which were recovered from the continental slope at water depths of 1300 and 2000 m. At all four stations a distinct sulfate-methane transition zone was observed several meters below the seafloor in which both sulfate and methane are consumed. Nutrient porewater concentration profiles do not show gradient slope changes at the depths...

Late Miocene to Pleistocene planktonic foraminifera of ODP Site 111-677, supplement to: Jenkins, D Graham; Houghton, Simon D (1989): Late Miocene to Pleistocene planktonic foraminifers from Ocean Drilling Program Site 677, Panama Basin. In: Becker, K; Sakai, H; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 111, 289-293

D Graham Jenkins & Simon D Houghton
Forty-three core-catcher samples from the upper Miocene to uppermost Pleistocene of ODP Site 677 were examined for planktonic foraminifers. Range charts were compiled for Holes 677A and 677B, and zonal markers and datum planes are correlated with the most recently published time scale. The absence of key species such as Globorotalia truncatulinoides, Globorotalia tosaensis, Globorotalia miocenica, and Globorotalia margaritae prohibits the use of any of the standard tropical zonal schemes. The zonal scheme used here...

Stable isotope ratios of foraminifera from various DSDP/ODP sites, supplement to: Zachos, James C; Stott, Lowell D; Lohmann, Kyger C (1994): Evolution of early Cenozoic marine temperatures. Paleoceanography, 9(2), 353-387

James C Zachos, Lowell D Stott & Kyger C Lohmann
The equator to high southern latitude sea surface and vertical temperature gradients are reconstructed from oxygen isotope values of planktonic and benthic foraminifers for the following five time intervals: late Paleocene, early Eocene, early middle Eocene, late Eocene, and early Oligocene. Paleotemperatures are calculated using standard oxygen isotope/temperature equations with adjustments to account for (1) variations in sea water delta18O related to changes in global ice volume over time and (2) latitudinal gradients in surface...

Barium/Calcium and Cadmium/Calcium ratios of sediment core RC13-229, supplement to: Lea, David W (1995): A trace metal perspective on the evolution of Antarctic Circumpolar Deep Water chemistry. Paleoceanography, 10(4), 733-748

David W Lea
A new benthic foraminiferal Ba/Ca and Cd/Ca data set from core RC13-229 in the deep Cape Basin indicates only small variations in bottom water nutrient concentrations in Circumpolar Deep Water (CPDW) over the last 450 kyr. Variability in the Ba record is characterized by somewhat higher values during glacial periods, consistent with a reduction in the flux of Ba-depleted North Atlantic Deep Water to the Southern Ocean during glacial periods. The small changes in the...

Planktic foraminiferal abundance and stable oxygen isotope ratios of sediment cores from the Southern California Borderlands, supplement to: Mortyn, P Graham; Thunell, Robert C; Anderson, David M; Stott, Lowell D; Le, Jianning (1996): Sea surface temperature changes in the Southern California Borderlands during the last glacial-interglacial cycle. Paleoceanography, 11(4), 415-430

P Graham Mortyn, Robert C Thunell, David M Anderson, Lowell D Stott & Jianning Le
A variety of evidence suggests that average sea surface temperatures (SSTs) during the last glacial maximum in the California Borderlands region were significantly colder than during the Holocene. Planktonic foraminiferal delta18O evidence and average SST estimates derived by the modern analog technique indicate that temperatures were 6°-10°C cooler during the last glacial relative to the present. The glacial plankton assemblage is dominated by the planktonic foraminifer Neogloboquadrina pachyderma (sinistral coiling) and the coccolith Coccolithus pelagicus,...

Strontium and Neodymium isotope composition of sediments from the North Atlantic, supplement to: Revel, Marie; Sinko, J A; Grousset, Francis E; Biscaye, Pierre Eginton (1996): Sr and Nd isotopes as tracers of North Atlantic lithic particles: Paleoclimatic implications. Paleoceanography, 11(1), 95-113

Marie Revel, J A Sinko, Francis E Grousset & Pierre Eginton Biscaye
Sr and Nd isotopic compositions have been measured on the lithic fraction of last climatic cycle sediments from the North Atlantic (~40°N/~60°N), in order to identify the origins of the particles. From the reconstruction of their transport pathways, we deduce the mechanisms that explain their distributions. The main source regions are the Canadian shield (mostly the area of Baffin Bay and western Greenland), the Scandinavian shield, the European region (British Isles and Bay of Biscay),...

Iron analysis in bottle profiles off Mauritania, supplement to: Schlosser, Christian; Croot, Peter L (2009): Controls on seawater Fe(III) solubility in the Mauritanian upwelling zone. Geophysical Research Letters, 36, 1-5

Christian Schlosser & Peter L Croot
Iron solubility measurements in the Mauritanian upwelling and the adjacent Open Ocean of the Tropical Atlantic show for all stations lower values in the surface mixed layer than at depth below the pycnocline. We attribute this distribution to a combination of loss terms, chiefly photo-oxidation of organic ligands in the surface, and supply terms, predominantly from the release of ligands from the decomposition of organic matter. Significant correlations with pH, oxygen and phosphate for all...

Particle flux determined from traps in the Canary Island region, supplement to: Neuer, Susanne; Ratmeyer, Volker; Davenport, Robert; Fischer, Gerhard; Wefer, Gerold (1997): Deep water particle flux in the Canary Island region: seasonal trends in relation to long-term satellite derived pigment data and lateral sources. Deep Sea Research Part I: Oceanographic Research Papers, 44(8), 1451-1466

Susanne Neuer, Volker Ratmeyer, Robert Davenport, Gerhard Fischer & Gerold Wefer
We present a 3 year record of deep water particle flux at the recently initiated ESTOC (European Station for Time-series in the Ocean, Canary Islands) located in the eastern subtropical North Atlantic gyre. Particle flux was highly seasonal, with flux maxima occurring in late winter-early spring. A comparison with historic CZCS (Coastal Zone Colour Scanner) data shows that these flux maxima occurred about 1 month after maximum chlorophyll was observed in surface waters in a...

Revised chronology of Neogene DSDP holes from the World Ocean, supplement to: Lazarus, David B; Spencer-Cervato, Cinzia; Pika-Biolzi, Milena; Beckmann, Jean-Pierre; von Salis, Katharina H; Hilbrecht, Hienz; Thierstein, Hans R (1995): Revised chronology of Neogene DSDP holes from the world ocean. Ocean Drilling Program, Texas A&M University, Technical Note, 24, 301 pp

David B Lazarus, Cinzia Spencer-Cervato, Milena Pika-Biolzi, Jean-Pierre Beckmann, Katharina H von Salis, Hienz Hilbrecht & Hans R Thierstein
After nearly 30 years of growth in geochronologic knowledge, the originally published age models for many older deep sea marine sections have become badly outdated. In this report we present newly revised age models for Neogene sediments from 94 DSDP holes. Biostratigraphic data for planktonic foraminifers, calcareous nannofossils, diatoms and radiolarians, paleomagnetic and other stratigraphic data were compiled from the original Initial Reports volumes of DSDP. The Berggren et al. (1985 doi:10.1130/0016-7606(1985)96<1407:CG>2.0.CO;2) scale was used...

Oxygen and carbon isotope stratigraphy of ODP Holes 107-653A and 107-654A, supplement to: Vergnaud-Grazzini, Colette; Saliège, Jean Francois; Urrutiaguer, Marie Jose; Iannace, Alessandro (1990): Oxygen and carbon isotope stratigraphy of ODP Hole 653A and Site 654: the Pliocene-Pleistocene glacial history recorded in the Tyrrhenian Basin (West Mediterranean). In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 361-386

Colette Vergnaud-Grazzini, Jean Francois Saliège, Marie Jose Urrutiaguer & Alessandro Iannace
Stable isotope analysis of two species (or groups of species) of planktonic foraminifers: Globigerinoides ruber (or G. obliquus and G. obliquus extremus) and Globigerina bulloides (or G. falconensis and G. obesa) from ODP Hole 653A and Site 654 in the Tyrrhenian basin, records the Pliocene-Pleistocene glacial history of the Northern Hemisphere. The overall increase in mean d18O values through the interval 4.6-0.08 Ma is 1.7 per mil for G. bulloides and 1.5 per mil for...

Geochemistry of Messinian sediments of the Sardinian margin, supplement to: Robertson, Alastair H F (1990): Geochemistry and mineralogy of iron- and trace-metal-rich Messinian and Pliocene mudstones cored on the Sardinian Margin: ODP Leg 107, Tyrrhenian Sea (central Mediterranean). In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 245-253

Alastair H F Robertson
Brightly colored mudstones within Messinian (late Miocene) and lower Pliocene successions were cored beneath the upper and lower slopes of the Sardinian continental margin of the Tyrrhenian Sea (Central Mediterranean). A total of 24 samples were analyzed for major and trace elements and 20 samples were studied by whole-rock X-ray diffraction. The colorful sediments studied include millimeter-thick limonitic laminations within coarser-grained clastic sedimentary rocks (Site 652) and local ferruginous zones near the top of the...

Age determination of Vostock Ice Core, supplement to: Sowers, Todd A; Bender, Michael L; Labeyrie, Laurent D; Martinson, Douglas G; Jouzel, Jean; Raynaud, Dominique; Pichon, Jean-Jacques; Korotkevich, Yevgeniy S (1993): A 135,000-year Vostok-SPECMAP common temporal framework. Paleoceanography, 8(6), 737-766

Todd A Sowers, Michael L Bender, Laurent D Labeyrie, Douglas G Martinson, Jean Jouzel, Dominique Raynaud, Jean-Jacques Pichon & Yevgeniy S Korotkevich
The object of the present study is to introduce a means of comparing the Vostok and marine chronologies. Our strategy has been to use the delta18O of atmospheric O2 (denoted delta18Oatm) from the Vostok ice core as a proxy for the delta18O of seawater (denoted delta18Osw). Our underlying premise in using delta18Oatm as a proxy for delta18Osw is that past variations in delta18Osw (an indicator of continental ice volume) have been transmitted to the atmospheric...

Organic carbon concentrations and Cd/Ca ratios of sediment core RC13-229, supplement to: Oppo, Delia W; Rosenthal, Yair (1994): Cd/Ca changes in a deep Cape Basin core over the past 730,000 years: Response of circumpolar deepwater variability to northern hemisphere ice sheet melting? Paleoceanography, 9(5), 661-676

Delia W Oppo & Yair Rosenthal
A comparison of cadmium/calcium (Cd/Ca) records of benthic foraminifera from a deep Cape Basin and a deep eastern equatorial Pacific core suggests that over the past 400,000 years, the nutrient concentration of Circumpolar Deep Water (CPDW) has always been lower than that of the deep Pacific. The data further suggest that at the 100,000- and 23,000-year orbital periods, the contribution of North Atlantic Deep Water to CPDW is at a maximum during periods of ice...

Geochemistry of basalts of ODP Hole 106-648B, supplement to: Park, Kye-Hun; Staudigel, Hubert (1990): Radiogenic isotope ratios and initial seafloor alteration in submarine Serocki Volcano basalts. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 117-121

Kye-Hun Park & Hubert Staudigel
Basalts from ODP Site 648, recovered from Serocki Volcano, a near-axis volcano on the Mid-Atlantic Ridge, are normal mid-ocean ridge basalts, depleted in K, Rb, and LREE. They have homogeneous source regions with 87Sr/88Sr = 0.70234 - 0.70245 (N = 6); 143Nd/,44Nd = 0.51318 - 0.51322 (N = 8); 208Pb/204Pb = 18.53 - 18.74; 207Pb/205Pb = 15.40 – 15.45; 208Pb/204Pb = 37.83 – 36.14 (n= 3). The recovered materials are generally fresh with minor initial...

Chemical and mineral compositions of bottom sediments from the East Pacific Rise near 13°N, supplement to: Markov, Yu D; Mozherovsky, A V; Vashchenkova, N G (2004): Metalliferous sediments in the active rift zone of the East Pacific Rise. Pacific Geology, 23(5), 40-53

Yu D Markov, A V Mozherovsky & N G Vashchenkova
During underwater photography and sampling of the rift valley bottom in the axial part of the East Pacific Rise, where water transparency is reduced due to hydrothermal input, ore manifestations have been found. The bottom is covered by them as by a jacket on both sides from the EPR axial zone. However, exposed pillow-lavas and clumpy blocks in rift ledges are covered by a thin metal-bearing film. It is supposed that sedimentation results mainly from...

Age determination of sediment cores from the North Atlantic, supplement to: Bond, Gerard C; Showers, William J; Cheseby, Maziet; Lotti, Rusty; Almasi, Peter; deMenocal, Peter B; Priore, Paul; Cullen, Heidi; Hajdas, Irka; Bonani, Georges (1997): A pervasive millennial-scale cycle in North Atlantic Holocene and gacial climates. Science, 278(5341), 1257-1266

Gerard C Bond, William J Showers, Maziet Cheseby, Rusty Lotti, Peter Almasi, Peter B deMenocal, Paul Priore, Heidi Cullen, Irka Hajdas & Georges Bonani
Evidence from North Atlantic deep sea cores reveals that abrupt shifts punctuated what is conventionally thought to have been a relatively stable Holocene climate. During each of these episodes, cool, ice-bearing waters from north of Iceland were advected as far south as the latitude of Britain. At about the same times, the atmospheric circulation above Greenland changed abruptly. Pacings of the Holocene events and of abrupt climate shifts during the last glaciation are statistically the...

Chemistry of peridotites from ODP Hole 107-651A, supplement to: Bonatti, Enrico; Seyler, Monique; Channell, James E T; Giraudeau, Jacques; Mascle, Georges (1990): Peridotites drilled from the Tyrrhenian Sea, ODP Leg 107. In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 37-47

Enrico Bonatti, Monique Seyler, James E T Channell, Jacques Giraudeau & Georges Mascle
Hole 651 A, drilled during ODP leg 107 in the Tyrrhenian Sea, bottomed in a 30-m-thick section of serpentinized peridotite. Site 651 was drilled on the eastern flank of a north-south trending basement high located along the axis of the Vavilov basin. Peridotite is overlain by a 136-m-thick basement section consisting of two distinct basalt units separated by a dolerite-albitite intrusive unit. Peridotite has a tectonitic texture and probably derived from the upper mantle; it...

Mineral composition of 0.25-0.05 mm grain size fraction from Holocene sediments of the Baikal Lake, supplement to: Vologina, Elena G; Kashik, S A; Sturm, M; Vorob'eva, S S; Lomonosova, T K; Kalashnikova, L A; Khramtsova, T I; Toshchakov, S Yu (2007): Results of research of Holocene sediments from the South and Central Basins of Baikal Lake (BDP-97 and short cores). Russian Geology and Geophysics, 48(4), 401-413

Elena G Vologina, S A Kashik, M Sturm, S S Vorob'eva, T K Lomonosova, L A Kalashnikova, T I Khramtsova & S Yu Toshchakov
Results of investigations of Baikal bottom sediments from a long core (BDP-97) and several short (0-1 m) cores are presented. It can be shown that Holocene sediments in the Baikal basins consist of biogenic-terrigenous muds accumulated under still sedimentation conditions, and of turbidites formed during catastrophic events. The turbidites can be distinguished from the host sediments by their enrichment in heavy minerals and thus their high magnetic susceptibility. Often, Pliocene and Pleistocene diatom species observed...

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,...

Mineralogy of ODP Site 105-645, supplement to: Hiscott, Richard N; Aksu, Ali E; Nielsen, Ole Bjorslev (1989): Provenance and dispersal patterns, Pliocene-Pleistocene section at Site 645, Baffin Bay. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 31-52

Richard N Hiscott, Ali E Aksu & Ole Bjorslev Nielsen
Cores from the upper 70 meters below seafloor (mbsf) (upper Pleistocene) at Ocean Drilling Program (ODP) Site 645 in Baffin Bay show dramatic meter-scale changes in color and mineralogy. Below this interval, mineralogical changes are more gradual to the top of the Miocene at about 550 mbsf. The Pliocene-Pleistocene section can be divided into five facies: Facies 1 - massive, poorly sorted, gravel-bearing muds; Facies 2 - gray silty clays and silty muds; Facies 3...

Calcareous nannofossils of ODP Leg 107 holes, supplement to: Müller, Carla (1990): Nannoplankton biostratigraphy and paleoenvironmental interpretations from the Tyrrhenian Sea, ODP Leg 107 (western Mediterranean). In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 495-512

Carla Müller
This paper summarizes the nannoplankton biostratigraphy and the paleoenvironmental interpretations obtained from Leg 107 in the Tyrrhenian Sea. Marine sediments are ranging in age from late Tortonian to Recent.The Mediterranean as a semiclosed adjacent sea of the Atlantic is strongly controlled by paleoceanographic changes in the Atlantic which are related to the global climatic evolution. This influence of the Atlantic is more pronounced in the western than in the eastern Mediterranean. The occurrence of sapropels...

Registration Year

  • 2010
    983

Resource Types

  • Collection
    983