57,716 Works

Distribution of halacarid species in sediment surface samples of Josephine Bank and Great Meteor Bank, Northeast Atlantic (Table 4), supplement to: Bartsch, Ilse (1973): Halacaridae (Acari) von der Josephinebank und der Großen Meteorbank aus dem östlichen Nordatlantik. II. Die Halacaridae aus den Bodengreiferproben. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D15, 51-78

Ilse Bartsch
In 22 samples, 6 from Josephine Bank and 16 from the Great Meteor Bank, 14 halacarid species were found and described. Halacarus spiniger n. sp., Copidognathus magniporus n. sp., Arhodeoporus lineatus n. sp., A. brevocularis n. sp., Coloboceras karamani n. sp., Scaptognathus minutus n. sp., and Atelopsalis newelli were hithero unknown. Acaromantis squilla Trouessart & Neumann and Atelopsalis tricuspis Trouessart were redescribed. Four larvae, probably belonging to Copidognathus longips Bartsch, C. tricorneata (Lohmann), Lohmannella falcata...

Distribution of the sand-ascidian Seriocarpa rhizoides in surface sediments of Josephine-Bank, North Atlantic (Table 4), supplement to: Diehl, Manfred (1970): Die neue, ökologisch extreme Sand-Ascidie von der Josephine-Bank: Seriocarpa rhizoides Diehl 1969 (Ascidiacea, Styelidae). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D7, 43-58

Manfred Diehl
Seriocarpa rhizoides Diehl 1969 was collected in abundance from the calcareous sand of the Josephine Bank (between Portugal and Madeira) during the „Meteor“ seamount cruises in 1967. Attachment in this loose soft substratum is effected by fine anchoring strands of the tests. Two irregular series of small polycarp-like hermaphrodite bodies which are embedded in a connective tissue lie directly below the endostyle, forming a tubular compound gonad, but without common ducts. The intermediate nature of...

The near-bottom plankton and benthic invertebrate fauna of Josephine and Great Meteor Seamounts (Table 2), supplement to: Hesthagen, Ivar H (1970): On the near-bottom plankton and benthic invertebrate fauna of the Josephine Seamount and the Great Meteor Seamount. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D8, 61-70

Ivar H Hesthagen
15 samples obtained with Beyer's epibenthic closing net were studied quantitatively. The numbers of epi- and endobenthic animals were found to be correlated with the volume of sediment in the samples. Among the planktonic components, calanoid copepodes were strongly predominant. In the samples obtained on the Great Meteor Seamount, very much larger numbers of these animals were caught in the daytime than at night. Possible explanations for this difference are suggested.

Distribution of benthic abyssal gastropods in the Iberian Deep-Sea Basin (Table 2), supplement to: Fechter, Rosina (1979): Gastropoden aus der Iberischen Tiefsee. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D30, 23-40

Rosina Fechter
During the cruises 3 and 15 of R.V. "Meteor", representatives of 7 families of benthic abyssal gastropods were collected. The prevalent group was the Turridae; the Naticidae are represented by 2 species, the remaining families by a single species each. A survey of the frequency and distribution of the species within the study area is given. A systematic part deals with the individual species in detail, including notes on taxonomy, material and distribution. Concerning the...

On the fine structure of oxygen distribution in surface water layers in the area between Iceland and Faroe Islands, supplement to: Grasshoff, Klaus; Johansen, J (1978): Untersuchung über die Feinstruktur der Sauerstoffverteilung in oberflächennahen Schichten im Seegebiet zwischen Island und Färöer. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A20, 109-120

Klaus Grasshoff & Jens Johannssen
During the international "Overflow-Expedition'' 1973 on R.V. "Meteor" oxygen concentrations in surface layers were measured in order to determine the oxygen gradients within the first two meters and to add some informations to the mechanisms of oxygen exchange at the air-sea interface. These investigations may be interesting also with regard to longterm- observations of the oxygen distribution in the Atlantic, especially the problem of the A.O.U. (apparent oxygen utilization) determination.To measure oxygen gradients a special...

Carbonate saturation in the water column of station M8_056 off Cap Sao Vincente, Portugal (Table 1), supplement to: Gieskes, Joris M (1970): Einige Beobachtungen über Lösungsvorgänge am Boden des Ozeans. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A8, 12-17

Joris M Gieskes
Changes in the dissolved oxygen content, the alkalinity, and the pH in sea water near the ocean floor are interpreted in terms of chemical and biochemical processes at the sediment water interface. A simple model provides a plausible explanation of the observed phenomena. Special emphasis is given to the importance of borate corrections in the calculation of the solution effects of calcium carbonate.

Palynological analysis of eight profiles from Nepal, supplement to: Beug, Hans-Jürgen; Miehe, Georg (1999): Vegetation history and human impact in the eastern central Himalaya (Langtang and Helambu, Nepal). Dissertationes Botanicae, 318, 98 pp

Hans-Jürgen Beug & Georg Miehe
In the Eastern Central Himalaya (Langtang Valley) and its southern declivity (Helambu), palynological and phytosociological studies were carried out with the aim of reconstructing the natural vegetation pattern and elucidating the development of replacement communities between the upper cloud forest belt (2000-4000 m a.s.l.), and the alpine belt (ca. 4000-5100 m a.s.l.). According to palynological studies and historical information, the remote area under study was first influenced by man during the 15th century, presumably by...

Pollen records from two outcrop profiles in the Kakitu Mountain of Tibet, supplement to: Beug, Hans-Jürgen (1987): Palynological studies on a peat layer in Kakitu Mountain, Northeastern Quinhai-Xizang plateau. In: J. Hövermann and W. Wenying (eds.), Reports of the Qinghai-Xizang (Tibet) Plateau, Science Press, Beijing, 6, 496-501

Hans-Jürgen Beug
There is a great similarity between pollen types which occur in the early Holocene NE Tibetan pollen spectra and those which are commonly considered to be typical for the Würm Late Glacial period in Central Europe and for the Würm Pleniglacial period in Southern Europe. Evidently, this similarity is due to a remarkable general conformity of plant taxa growing in cold-arid regions of the northern hemisphere. The improvement of the climate and the retreat of...

Geochemical analysis of sediments from three coring sites in the Mediterranean, supplement to: Hübner, Andreas; de Lange, Gert Jan; Dittmer, J; Halbach, Peter (2003): Geochemistry of an exotic sediment layer above sapropel S-1: mud expulsion from the Urania Basin, eastern Mediterranean? Marine Geology, 197(1-4), 49-61

Andreas Hübner, Gert Jan de Lange, J Dittmer & Peter Halbach
In a gravity core from the eastern Mediterranean Sea, a chemically and mineralogically distinct, 5.5-cm-thick layer is present above sapropel S-1 and overlain by hemipelagic marls. Calcite is completely absent in this exotic layer, dolomite is present only in small amounts, and the Cr concentrations are significantly enhanced. The layer was deposited primarily under reducing conditions, but the distributions of redox-sensitive elements show that a large part of the exotic layer is now oxidised by...

At surface behaviour of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Gilbert, Caroline; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Foraging movements of emperor penguins at Pointe Géologie, Antarctica. Polar Biology, 31(2), 229-243

Ilka Zimmer, Rory P Wilson, Caroline Gilbert, Michaël Beaulieu, André Ancel, Joachim Plötz & Horst Bornemann
The foraging distributions of 20 breeding emperor penguins were investigated at Pointe Géologie, Terre Adélie, Antarctica by using satellite telemetry in 2005 and 2006 during early and late winter, as well as during late spring and summer, corresponding to incubation, early chick-brooding, late chick-rearing and the adult pre-moult period, respectively. Dive depth records of three post-egg-laying females, two post-incubating males and four late chick-rearing adults were examined, as well as the horizontal space use by...

High resolution Termination 1 alkenone sea surface temperature (SST) reconstruction from Site 202-1233 in the Southeast Pacific, supplement to: Lamy, Frank; Kaiser, Jérôme; Arz, Helge Wolfgang; Hebbeln, Dierk; Ninnemann, Ulysses S; Timm, Oliver; Timmermann, Axel; Toggweiler, J Robert (2007): Modulation of the bipolar seesaw in the Southeast Pacific during Termination 1. Earth and Planetary Science Letters, 259(3-4), 400-413

Frank Lamy, Jérôme Kaiser, Helge Wolfgang Arz, Dierk Hebbeln, Ulysses S Ninnemann, Oliver Timm, Axel Timmermann & J Robert Toggweiler
The termination of the last ice age (Termination 1; T1) is crucial for our understanding of global climate change and for the validation of climate models. There are still a number of open questions regarding for example the exact timing and the mechanisms involved in the initiation of deglaciation and the subsequent interhemispheric pattern of the warming. Our study is based on a well-dated and high-resolution alkenone-based sea surface temperature (SST) record from the SE-Pacific...

In situ pore water oxygen microprofiles from the Polar Front, Southern South Atlantic Ocean

Oliver Sachs & Eberhard-Jürgen Sauter
Without doubt, global climate change is directly linked to the anthropogenic release of greenhouse gases such as carbon dioxide (CO2) and methane (UN IPCC-Report 2007). Therefore, research efforts to comprehend the global carbon cycle have increased during the last years. In the context of the observed changes, it is of particular interest to decipher the role of the hydro-, bio- and atmospheres and how the different compartments of the earth system are affected by the...

Benthic organic carbon flux and oxygen penetration depth in the Southern Ocean, supplement to: Sachs, Oliver; Sauter, Eberhard-Jürgen; Schlüter, Michael; Rutgers van der Loeff, Michiel M; Jerosch, Kerstin; Holby, Ola (2009): Benthic organic carbon flux and oxygen penetration reflect different plankton provinces in the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 56(8), 1319-1335

Oliver Sachs, Eberhard-Jürgen Sauter, Michael Schlüter, Michiel M Rutgers van der Loeff, Kerstin Jerosch & Ola Holby
For the investigation of organic carbon fluxes reaching the seafloor, oxygen microprofiles were measured at 145 sites in different sub-regions of the Southern Ocean. At eleven sites, an in situ oxygen microprofiler was deployed for the measurement of oxygen profiles and the calculation of organic carbon fluxes. At four sites, both in situ and ex situ data were determined for high latitudes. Based on this dataset as well as on previous published data, a relationship...

Petrology and geochemistry of sideromelane glass shards from Pleistocene as layers north and south of Gran Canaria, supplement to: Gurenko, Andrey A; Schmincke, Hans-Ulrich (1998): Petrology, geochemistry, S, Cl and F abundances, and S oxidation state of sideromelane glass shards from Pleistocene ash layers north and south of Gran Canaria (ODP Leg 157). Contributions to Mineralogy and Petrology, 131(1), 95-110

Andrey A Gurenko & Hans-Ulrich Schmincke
Major elements, S, F, Cl concentrations and relative proportions of S6+ to total S were analyzed with electron microprobe in sideromelane glass shards from Pleistocene volcaniclastic sediments drilled during ODP Leg 157. Glasses are moderately to strongly evolved and represent a spectrum from alkali basalt, basanite and nephelinite through hawaiite, mugearite and tephrite to phonolitic tephrite. Measured S6+/SumS (0.03±0.98) and calculated Fe2+/Fe3+ (2.5±5.8) ratios in the melt yield preeruptive redox conditions ranging from NNO-1.4 to...

Composition, oxygen isotope and crystallisation temperature of clay samples from the Tonga Trench, ODP Site 135-841, supplement to: Vitali, Frédéric; Blanc, Gérard; Gauthier-Lafaye, François; France-Lanord, Christian (1999): Formation temperatures of clays from the volcaniclastic series of Site 841 ODP: an oxygen isotopic record of a paleothermal flux into the Tonga forearc. Contributions to Mineralogy and Petrology, 134(4), 364-369

Frédéric Vitali, Gérard Blanc, François Gauthier-Lafaye & Christian France-Lanord
Oxygen isotopic compositions of clay minerals were determined on representative samples of the volcano-sedimentary series from Site 841 ODP (Tonga forearc). This isotopic study has demonstrated an abnormally high crystallisation temperature of the clay minerals with respect to temperature expected in burial diagenesis. Formation temperatures obtained using d18O reach up to 200 °C in a Fe-chlorite-corrensite paragenesis found in the vicinity of basaltic andesite sills intruded into the Miocene tuffs. The paleothermal flux resulting from...

Sedimentological, organic petrographic and organic chemical characteristics of Albian and Cenomanian/Turonian black shales from the North Altlantic (Tab. 3, 4), supplement to: Stein, Ruediger; Rullkötter, Jürgen; Welte, Dietrich Hugo (1989): Changes in paleoenvironments in the Atlantic Ocean during Cretaceous times: results from black shales studies. Geologische Rundschau, 78(3), 883-901

Ruediger Stein, Jürgen Rullkötter & Dietrich Hugo Welte
Large parts of the Cretaceous Atlantic Ocean are characterized by the wide-spread deposition of organic-carbon-rich sediments ("black shales“), with a maximum occurrence during Aptian/Albian and Cenomanian/Turonian times. In order to explain the origin of these black shales, changes in the amount and type of organic matter in relation to changes in paleogeography, paleoceanic circulation, and paleoclimate have been investigated in detail. The study is mainly based on calculation of accumulation rates of marine and terrigenous...

Chemical composition of clinoptilolite crystals from ODP Hole 108-661A (Table 2), supplement to: Bohrmann, Gerhard; Stein, Ruediger; Faugeres, Jean-Claude (1989): Authigenic zeolites and their relation to silica diagenesis in ODP Site 661sediments (Leg 108, Eastern Equatorial Atlantic). Geologische Rundschau, 78(3), 779-792

Gerhard Bohrmann, Ruediger Stein & Jean-Claude Faugeres
At ODP Site 661 from the continental margin of Northwest Africa, authigenic clinoptilolites were investigated in detail. Based on chemical data, crystal size and shape and their intergrowth with associated mineral phases, two types of clinoptilolite (type A and B) occur representing different diagenetic conditions under which the formation of zeolites took place. Clinoptilolite type A was found in a sediment section comprises numerous hiatuses and stratigraphically condensed sediments and could have been formed during...

Barium intensities and tie points between holes of Leg 208, supplement to: Röhl, Ursula; Westerhold, Thomas; Bralower, Timothy J; Zachos, James C (2007): On the duration of the Paleocene - Eocene Thermal Maximum (PETM). Geochemistry, Geophysics, Geosystems, 8(12), Q12002

Ursula Röhl, Thomas Westerhold, Timothy J Bralower & James C Zachos
The Paleocene - Eocene thermal maximum (PETM) is one of the best known examples of a transient climate perturbation, associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle from injection of isotopically light carbon into the ocean-atmosphere system. One key to quantifying the mass of carbon released, identifying the source(s), and understanding the ultimate fate of this carbon is to develop high-resolution age models. Two...

Age model and sediment description of DSDP Hole 90-594, Chatham Ridge east of New Zealand, supplement to: Dersch, Michaela; Stein, Ruediger (1991): Paläoklima und paläozoische Verhältnisse im SW-Pazifik während der letzten 6 Millionen Jahre (DSDP-Site 594, Chatham Rücken, östlich Neuseeland). Geologische Rundschau, 80(3), 535-556

Michaela Dersch-Hansmann & Ruediger Stein
Detailed sedimentological investigations were performed on sediments from DSDP-Site 594 (Chatham Rise, east of New Zealand) in order to reconstruct the evolution of paleoclimate and paleoceanographic conditions in the Southwest Pacific during the last 6 million years. The results can be summarized as follows: (1) High accumulation rates of biogenic opal and carbonate and the dominance of smectites in the clay fraction suggest increased oceanic productivity and an equable dominantly humid climate during the late...

Occurence of monothalamous foraminifera in Admiralty Bay, King George Island, West Antarctica (Table 1, 2), supplement to: Majewski, Wojciech; Lecroq, Beatrice; Sinniger, Frederic; Pawlowski, Jan (2007): Monothalamous foraminifera from Admiralty Bay, King George Island, West Antarctica. Polish Polar Research, 28(3), 187-210

Wojciech Majewski, Beatrice Lecroq, Frederic Sinniger & Jan Pawlowski
During the late 2007 austral summer, 20 sediment samples were collected in Admiralty Bay (King George Island, South Shetlands, West Antarctica) from 8 down to 254 m water-depth (mwd). The samples yielded abundant assemblage of monothalamous benthic foraminifera, belonging to at least 40 morphospecies. They constituted the first such collection from Antarctic Peninsula fjords and provided a new insight into this group's diversity and distribution. Among organic-walled taxa, Psammophaga sp., Allogromia cf. crystallifera, and three...

Distribution of Upper Cretaceous deep water agglutinated foraminifera in sediments of the North Atlantic and its marginal seas (Tab. 1), supplement to: Kuhnt, Wolfgang; Kaminski, Michael A; Moullade, Michel (1989): Late Cretaceous deep-water agglutinated foraminiferal assemblages from the North Atlantic and its marginal seas. Geologische Rundschau, 78(3), 1121-1140

Wolfgang Kuhnt, Michael A Kaminski & Michel Moullade
The stratigraphic and biogeographic distribution of more than 170 species of deep-water agglutinated benthic foraminifers (DWAF) from the North Atlantic and adjacent marginal seas has been compared with paleoenvironmental data (e.g. paleobathymetry, oxygenation of the bottom waters, amount of terrigenous input and substrate disturbance). Six general types of assemblages, in which deep water agglutinated taxa occur, are defined from the Turonian to Maastrichtian times:1. High latitude slope assemblages2. Low to mid latitude slope assemblages3. Flysch-type...

Benthic foraminifera in Lower Cretaceous sediments from various DSDP samples, supplement to: Riegraf, Wolfgang; Luterbacher, Hanspeter (1989): Benthonische Foraminiferen aus der Unterkreide des \"Deep Sea Drilling Project\" (Leg 1-79). Geologische Rundschau, 78(3), 1063-1120

Wolfgang Riegraf & Hanspeter Luterbacher
From the DSDP Legs 1, 11, 13, 17, 25, 27, 32, 36, 41, 43, 44, 50, and 62 the Lower Cretaceous foraminifers have been investigated for biostratigraphical, taxonomical, and palaeoecological purposes. An overview of the cored Lower Cretaceous sections of Leg 1-80 is given. In the Northern Atlantic Ocean characteristic foraminiferal faunas are missing from the Upper Tithonian to the Valanginian due to a marked regression which caused hiatuses. In areas without black shale conditions...

Composition of phyllosilicates from hydrothermally altered basalts of DSDP Hole 83-504B, Costa Rica Rift, Pacific Ocean, supplement to: Shau, Yen-Hong; Peacor, Donald R (1992): Phyllosilieates in hydrothermally altered basalts from DSDP Hole 504B, Leg 83- a TEM and AEM study. Contributions to Mineralogy and Petrology, 112, 119-133

Yen-Hong Shau & Donald R Peacor
Phyllosilicates occurring as replacements of olivine, clinopyroxene and interstitial materials and as veins or fracture-fillings in hydrothermally altered basalts from DSDP Hole 504B, Leg 83 have been studied using transmission and analytical electron microscopy. The parageneses of phyllosilicates generally change systematically with depth and with the degree of alteration, which in turn is related to permeability of basalts. Saponite and some mixed-layer chlorite/smectite are the dominant phyllosilicates at the top of the transition zone. Chlorite,...

Present day and paleo-geographic coordinates, thicknesses and isopach area of the Early Eocene +19 ash layer (Table 1), supplement to: Egger, Hans; Brückl, Ewald (2006): Gigantic volcanic eruptions and climatic change in the early Eocene. International Journal of Earth Sciences, 95, 1065-1070

Hans Egger & Ewald Brückl
23 layers of altered volcanic ash (bentonites) originating from the North Atlantic Igneous Province have been recorded in early Eocene deposits of the Austrian Alps, about 1,900 km away from the source area. The Austrian bentonites are distal equivalents of the ''main ash-phase'' in Denmark and the North Sea basin. We have calculated the total eruption volume of this series as 21,000 km**3, which occurred in 600,000 years. The most powerful single eruption of this...

Determination of sulfite and manganese in sediments from the K/T boundary, supplement to: Griscom, David L; Beltran-Lopez, Virgilio; Pope, Kevin O; Ocampo, Adriana C (2003): New geochemical insights from electron-spin-resonance studies of Mn2+ and SO3 in calcites; quantitative analyses of Chicxulub Crater ejecta from Belize and southern Mexico with comparison to limestones from distal Cretaceous-Tertiary-boundary sites. In: Koeberl, C. (ed.), Impact markers in the stratigraphic record in impact studies, Springer, Berlin, pp. 229-270

David L Griscom, Virgilio Beltran-Lopez, Kevin O Pope & Adriana C Ocampo
The solid-state-physics technique of electron spin resonance (ESR) has been employed in an exploratory study of marine limestones and impact-related deposits from Cretaceous-Tertiary (KT) boundary sites including Spain (Sopelana and Caravaca), New Jersey (Bass River), the U.S. Atlantic continental margin (Blake Nose, ODP Leg 171B/1049/A), and several locations in Belize and southern Mexico within -600 km of the Chicxulub crater. The ESR spectra of SO3(1-) (a radiation-induced point defect involving a sulfite ion substitutional for...

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  • 2007
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Affiliations

  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    20
  • University of Rennes 1
    2
  • University of Bern
    2
  • United States Geological Survey
    2
  • Heidelberg University
    2
  • Laboratoire des Sciences du Climat et de l'Environnement
    2
  • Federal Institute for Geosciences and Natural Resources
    2
  • Barnard College
    2