17,813 Works

(Table 4) Methane inventory of dynamic autoclave piston cores GeoB11911, GeoB11914 and GeoB11916

Tomas Feseker, Thomas Pape, Klaus Wallmann, Stephan A Klapp, Friederike Schmidt-Schierhorn & Gerhard Bohrmann

(Table 3) Distributions of low molecular-weight hydrocarbons (C1 to i-C4) and carbon dioxide in gas retrieved by degassing of pressure cores from the Dvurechenskii mud volcano

Tomas Feseker, Thomas Pape, Klaus Wallmann, Stephan A Klapp, Friederike Schmidt-Schierhorn & Gerhard Bohrmann

Geochemical characterization of black shales from the Tarfaya Basin, supplement to: Kolonic, Sadat; Sinninghe Damsté, Jaap S; Böttcher, Michael E; Kuypers, Marcel MM; Kuhnt, Wolfgang; Beckmann, Britta; Scheeder, Georg; Wagner, Thomas (2002): Geochemical characterization of Cenomanian/Turonian black hales from the Tarafaya Basin (SW Morocco): Relationships betweeen alaeoenviromental conditions and early sulphurization of sedimentary organic matter. Journal of Petroleum Geology, 25(3), 325-350

Sadat Kolonic, Jaap S Sinninghe Damsté, Michael E Böttcher, Marcel MM Kuypers, Wolfgang Kuhnt, Britta Beckmann, Georg Scheeder & Thomas Wagner
Organic geochemical and petrological investigations were carried out on Cenomanian/Turonian black shales from three sample sites in the Tarfaya Basin (SW Morocco) to characterize the sedimentary organic matter. These black shales have a variable bulk and molecular geochemical composition reflecting changes in the quantity and quality of the organic matter. High TOC contents (up to 18wt%) and hydrogen indices between 400 and 800 (mgHC/gTOC) indicate hydrogen-rich organic matter (Type I-II kerogen) which qualifies these laminated...

Temperature reconstruction of sediment cores from the northeastern Arabian Sea, supplement to: Doose-Rolinski, Heidi; Rogalla, U; Scheeder, Georg; Lückge, Andreas; von Rad, Ulrich (2001): High resolution temperature and evaporation changes during the late Holocene in the northeastern Arabian Sea. Paleoceanography, 16(4), 358-367

Heidi Doose-Rolinski, U Rogalla, Georg Scheeder, Andreas Lückge & Ulrich von Rad
In order to reconstruct the monsoonal variability during the late Holocene we investigated a complete, annually laminated sediment record from the oxygen minimum zone (OMZ) off Pakistan for oxygen isotopes of planktic foraminifera and alkenone-derived sea surface temperatures (SST). Significant SST changes of up to 3°C which cannot be explained by changes in the alkenone-producing coccolithophorid species (inferred from the Gephyrocapsa oceanica / Emiliania huxleyi ratio) suggest that SST changes are driven by changes in...

Iron and carbon geochemistry of sediment core GeoB1401-4, supplement to: Haese, Ralf R; Wallmann, Klaus; Dahmke, Andreas; Kretzmann, U; Müller, Peter J; Schulz, Horst D (1997): Iron species determination to investigate early diagenetic reactivity in marine sediments. Geochimica et Cosmochimica Acta, 61(1), 63-72

Ralf R Haese, Klaus Wallmann, Andreas Dahmke, U Kretzmann, Peter J Müller & Horst D Schulz
Iron speciation was determined in hemiplegic sediments from a high productivity area to investigate systematically the early diagenetic reactivity of Fe. A combination of various leaching agents (1 M HCI, dithionite buffered in citrate/acetic acid, HF/H2SO4, acetic Cr(II)) was applied to sediment and extracted more than 80% of total Fe. Subsequent Fe species determination defined specific mineral fractions that are available for Fe reduction and fractions formed as products of Fe diagenesis. To determine the...

(Table 9) Factor loading matrix ofthe living benthic foraminiferal assemblages

Frank Kurbjeweit, Gerhard Schmiedl, Ralf Schiebel, Christoph Hemleben, Olaf Pfannkuche, Klaus Wallmann & Priska Schäfer
number of observations = 36

Living benthic foraminiferal assemblages in surface samples of the Arabian Sea, supplement to: Kurbjeweit, Frank; Schmiedl, Gerhard; Schiebel, Ralf; Hemleben, Christoph; Pfannkuche, Olaf; Wallmann, Klaus; Schäfer, Priska (2000): Distribution, biomass and diversity of benthic foraminifera in relation to sediment geochemistry in the Arabian Sea. Deep Sea Research Part II: Topical Studies in Oceanography, 47(14), 2913-2955

Frank Kurbjeweit, Gerhard Schmiedl, Ralf Schiebel, Christoph Hemleben, Olaf Pfannkuche, Klaus Wallmann & Priska Schäfer
The distribution, biomass, and diversity of living (Rose Bengal stained) deep-sea benthic foraminifera (>30 µm) were investigated with multicorer samples from seven stations in the Arabian Sea during the intermonsoonal periods in March and in September/October, 1995. Water depths of the stations ranged between 1916 and 4425 m. The distribution of benthic foraminifera was compared with dissolved oxygen, % organic carbon, % calcium carbonate, ammonium, % silica, chloroplastic pigment equivalents, sand content, pore water content...

Equivalent spherical diameter of gas bubbles at the ROV station GeoB11917

Heiko Sahling, Gerhard Bohrmann, Yuriy G Artemov, André Bahr, Markus Brüning, Stephan A Klapp, Ingo Klaucke, Elena Kozlova, Aneta Nikolovska, Thomas Pape, Anja Reitz & Klaus Wallmann
These are the original measurements of equivalent spherical diameter that are the base for Figure 11 in the paper.

Pore-water concentration of chloride in sediment cores and equilibrium temperatures and gas bubble analysis at ROV stations from the Vodyanitskii mud volcano, 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

Heiko Sahling, Gerhard Bohrmann, Yuriy G Artemov, André Bahr, Markus Brüning, Stephan A Klapp, Ingo Klaucke, Elena Kozlova, Aneta Nikolovska, Thomas Pape, Anja Reitz & Klaus Wallmann
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...

Temperature measurements, gas chemistry, and gas hydrates of the Dvurechenskii mud volcano, supplement to: Feseker, Tomas; Pape, Thomas; Wallmann, Klaus; Klapp, Stephan A; Schmidt-Schierhorn, Friederike; Bohrmann, Gerhard (2009): The thermal structure of the Dvurechenskii mud volcano and its implications for gas hydrate stability and eruption dynamics. Marine and Petroleum Geology, 26(9), 1812-1823

Tomas Feseker, Thomas Pape, Klaus Wallmann, Stephan A Klapp, Friederike Schmidt-Schierhorn & Gerhard Bohrmann
The sediment temperature distribution at mud volcanoes provides insights into their activity and into the occurrence of gas hydrates. If ambient pressure and temperature conditions are close to the limits of the gas hydrate stability field, the sediment temperature distribution not only limits the occurrence of gas hydrates, but is itself influenced by heat production and consumption related to the formation and dissociation of gas hydrates. Located in the Sorokin Trough in the northern Black...

(Table 2) In-situ sediment temperatures of gravity corer stations from the Dvurechenskii mud volcano

Tomas Feseker, Thomas Pape, Klaus Wallmann, Stephan A Klapp, Friederike Schmidt-Schierhorn & Gerhard Bohrmann
For each sensor, the distance Dz between the sensor and the tip of the gravity corer is given in the last row of the table. The estimated penetration depth also refers to the tip of the gravity corer, such that the sensor depth may be calculated by subtracting Dz from the penetration depth.

(Figure 10) The bottom water temperature and equilibrium temperatures obtained by the ROV-operated temperature probe at bubble site #1 at Vodyanitskii mud volcano

Heiko Sahling, Gerhard Bohrmann, Yuriy G Artemov, André Bahr, Markus Brüning, Stephan A Klapp, Ingo Klaucke, Elena Kozlova, Aneta Nikolovska, Thomas Pape, Anja Reitz & Klaus Wallmann

(Table 8) Factor score matrix ofthe living benthic foraminiferal assemblages

Frank Kurbjeweit, Gerhard Schmiedl, Ralf Schiebel, Christoph Hemleben, Olaf Pfannkuche, Klaus Wallmann & Priska Schäfer

(Figure 5) Pore-water concentration of chloride in sediment core GeoB11913 from the Vodyanitskii mud volcano

Heiko Sahling, Gerhard Bohrmann, Yuriy G Artemov, André Bahr, Markus Brüning, Stephan A Klapp, Ingo Klaucke, Elena Kozlova, Aneta Nikolovska, Thomas Pape, Anja Reitz & Klaus Wallmann

(Figure 5) Pore-water concentration of chloride in sediment core GeoB11913 from the Vodyanitskii mud volcano

Heiko Sahling, Gerhard Bohrmann, Yuriy G Artemov, André Bahr, Markus Brüning, Stephan A Klapp, Ingo Klaucke, Elena Kozlova, Aneta Nikolovska, Thomas Pape, Anja Reitz & Klaus Wallmann

Component analysis of TV-guided grab sampler GeoB10071-4

Claudia Wienberg, Hildegard Westphal, Eva Kwoll & Dierk Hebbeln

Component analysis of TV-guided grab sampler GeoB10071-3

Claudia Wienberg, Hildegard Westphal, Eva Kwoll & Dierk Hebbeln

Component analysis of TV-guided grab sampler GeoB10071-5

Claudia Wienberg, Hildegard Westphal, Eva Kwoll & Dierk Hebbeln

Distribution of macro-epibenthos at Helgoland in 2010

Markus Molis

(Table 2) Biomass of benthos and different animal groups in the Scotia Sea

Nina G Vinogradova, Mikhail A Levitan, Sergey V Galkin & Peter G Dietrich

(Table 1) Abundance of bottom fauna in grab samples at the Transatlantic section

Nina G Vinogradova, Mikhail A Levitan, Sergey V Galkin & Peter G Dietrich

(Table 1) Bottom fauna Metazoa in grab samples from the Namibia shelf in the area of Benguela upwelling

Nina G Vinogradova, Mikhail A Levitan, Sergey V Galkin & Peter G Dietrich

Results of biological and geological bottom investigations carried out during Cruise 43 of R/V Akademik Kurchatov in the South Atlantic, supplement to: AK43 Team (1990): Biological and Geological Bottom Investigations in the South Atlantic. P.P. Shirshov Institute of Oceanology, USSR Academy of Sciences, Transactions, vol. 126. Nauka Publ. (Moscow); Vinogradova, N.G. (Ed.), 208 pp

Nina G Vinogradova
The book is devoted to investigations of benthic fauna and geology of the Southern Atlantic Ocean. These works have been carried out in terms of exploring biological structure of the ocean and are of great importance for development of this fundamental problem. They are based on material collected during Cruise 43 of R/V Akademik Kurchatov in 1985-1986 and Cruise 43 of R/V Dmitry Mendeleev in 1989. Problems of quantitative distribution, group composition and trophic structure...

Thermomagnetic measurements on sediment core GeoB2910-1 on magnetic extracts

Christine Franke, Thomas Frederichs & Mark J Dekkers

(Table T4) Headspace gas concentrations of hydrocarbons, Holes U1329C and U1329E

Michael Riedel
C1 (mmol/l)=dissolved residual methane obtained by the headspace equilibration method

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