118 Works

Diatom abundance counted on water bottle samples from the EisenEx cruise to the Southern Ocean, supplement to: Assmy, Philipp; Henjes, Joachim; Klaas, Christine; Smetacek, Victor (2007): Mechanisms determining species dominance in a phytoplankton bloom induced by the iron fertilization experiment EisenEx in the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 54(3), 340-362

Philipp Assmy, Joachim Henjes, Christine Klaas & Victor Smetacek
The dynamics of phytoplankton species populations recorded during the 3-week, iron-fertilization experiment EisenEx carried out in spring in the Antarctic Polar Frontal Zone are presented and discussed as the difference between growth and mortality rates. Only two cosmopolitan diatom species, the centric Chaetoceros debilis and the pennate Pseudo-nitzschia lineola, increased population density exponentially throughout the experiment to 150-fold and 90-fold of initial values respectively. Because C. debilis initial abundance was tenfold lower than that of...

Sedimentology, magnetics and chemistry on palaeolake core D100 from the Gobi Desert, supplement to: Wünnemann, Bernd; Hartmann, Kai; Altmann, Norbert; Hambach, Ulrich; Pachur, Hans-Joachim (2006): Interglacial and glacial fingerprints from the Gobi Desert, NW China. In: Sirocko, F, Claussen, M, Litt, T & Sanchez-Goñi, M F(eds.): The climate of past interglacials; Developments in Quaternary Science, Elsevier, Amsterdam

Bernd Wünnemann, Kai Hartmann, Norbert Altmann, Ulrich Hambach & Hans-Joachim Pachur
The Gaxun Nur Basin in arid China is tectonically influenced by the left-lateral displacements along the Gobi-Altay and Qilian Shan shear zones, resulting in a large pull-apart basin with strong subsidence in the interior. The up to 300 m thick basin fills consist of fluvio-lacustrine fine-grained deposits mainly transported by river discharges from the Tibetan Plateau. They led to a large depositional area of more than 28,000 qkm in size with presently dry terminal lakes...

Oligocene to Miocene palaeoclimate reconstructions from 14 sites in Serbia, supplement to: Utescher, Torsten; Djordjevic-Milutinovic, Desa; Bruch, Angela A; Mosbrugger, Volker (2007): Climate and vegetation changes in Serbia during the last 30 Ma. Palaeogeography, Palaeoclimatology, Palaeoecology, 253(1-2), 157-168

Torsten Utescher, Desa Djordjevic-Milutinovic, Angela A Bruch & Volker Mosbrugger
14 published megafloras from the Serbian Cenozoic are analyzed with respect to vegetation type, palaeoclimate, and palaeogeographic settings. The floras cover a time-span from the Oligocene to the late Miocene. The results obtained are compared with continental climate records from other parts of Europe and discussed in the context of global climate change. To obtain a quantitative palaeoclimate record a total of seven different climate variables is calculated for each of the floras using the...

Environmental analysis on sediment core CRP-2 from the Ross Sea, Antarctica, supplement to: Powell, Ross; Krissek, Lawrence A; van der Meer, Jaap (2000): Preliminary depositional environmental analysis of CRP-2/2A, Victoria Land Basin, Antarctica: palaeoglaciological and palaeoclimatic inferences. Terra Antartica, 7(3), 313-322

Ross Powell, Lawrence A Krissek & Jaap van der Meer
Cape Roberts Project drill core 2/2A was obtained from Roberts Ridge, a sea-floor high located at 77° S, 16 km offshore from Cape Roberts in western McMurdo Sound, Antarctica. The recovered core is about 624 m long and includes strata dated as being Quaternary, Pliocene, Miocene and Oligocene in age. The core includes twelve facies commonly occurring in associations that are repeated in particular sequences throughout the core and which are interpreted as representing different...

Palynology of marine sediment cores from the West African coast, supplement to: Agwu, Chiori O C; Beug, Hans-Jürgen (1982): Palynological studies of marine sediments off the West African coast. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C36, 1-30

Chiori O C Agwu & Hans-Jürgen Beug
Seven sediment cores from the cruises of the "Meteor" and "Valdivia" were examined palynologically. The cores were retrieved from the lower continental slope in the area of between 33.5° N and 8° N, off the West African coast. Most of the cores contain sediments from the last Glacial and Interglacial period. In some cases, the Holocene sediments are missing. Some individual cores contain sediments also from earlier Glacial and Interglacial periods. The main reason for...

Age determination of sediment cores from the continental shelf and slope off North-West Africa, supplement to: Diester-Haass, Lieselotte (1981): Factors contributing to Late Glacial and Holocene sedimentation on the continental shelf and slope off NW Africa, Banc d`Arguin, 19° N. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C35, 1-22

Lieselotte Diester-Haass
Three sediment cores from the continental shelf and slope off NW Africa (Banc d'Arguin; 52 m, 665 m and 973 m water depth) have been investigated by means of a coarse fraction analysis.The two shallower cores have been deposited during less than 10,000 years, the deeper one during the last 36,000 years. The Holocene sedimentation ( 4000 years) in the deeper part of core 79 the edge of the Banc d'Arguin is strongly influenced by...

Record of pollen, silt and greyscale stack from the Eifel Laminated Sediment Archive (ELSA), supplement to: Sirocko, Frank; Seelos, Klemens; Schaber, Katja; Rein, Bert; Dreher, Frank; Diehl, Markus; Lehne, Rouwen; Jäger, Knut; Krbetschek, Matthias R; Degering, Detlev (2005): A late eemian aridity pulse in central Europe during the last glacial inception. Nature, 436, 833-836

Frank Sirocko, Klemens Seelos, Katja Schaber, Bert Rein, Frank Dreher, Markus Diehl, Rouwen Lehne, Knut Jäger, Matthias R Krbetschek & Detlev Degering
Investigating the processes that led to the end of the last interglacial period is relevant for understanding how our ongoing interglacial will end, which has been a matter of much debate. A recent ice core from Greenland demonstrates climate cooling from 122,000 years ago driven by orbitally controlled insolation, with glacial inception at 118,000 years ago. Here we present an annually resolved, layer-counted record of varve thickness, quartz grain size and pollen assemblages from a...

Organic geochemistry of two sediment cores from the Kara Sea, supplement to: Fahl, Kirsten; Stein, Ruediger (2007): Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean). Geo-Marine Letters, 27(1), 13-25

Kirsten Fahl & Ruediger Stein
Within the Russian-German research project on "Siberian River Run-off (SIRRO)" devoted to the freshwater discharge and its influence on biological, geochemical, and geological processes in the Kara Sea, sedimentological and organic-geochemical investigations were carried-out on two well-dated sediment cores from the Yenisei Estuary area. The main goal of this study was to quantify the terrigenous organic carbon accumulation based on biomarker and bulk accumulation rate data, and its relationship to Yenisei river discharge and climate...

Investigation of Miocene foraminifera in sediment core CRP-1 from the Ross Sea, Antarctica, supplement to: Strong, C Percy; Webb, Peter-Noel (1998): Lower Miocene foraminifera from CRP-1 drillhole. Terra Antartica, 5(3), 515-520

C Percy Strong & Peter-Noel Webb
A faunal comprising 18 foraminiferal taxa wa recovered from a suite of 52 core samples from lower Miocene sandstone, claystone and diamictite in the CRP-1 drillhole, Cape Roberts, Antarctica. The fauna is characterised by low foraminiferal abundance and diversity, the absence of planktics, and typically, the presence of Cribroelphidium sp. and/or Melonis spp. These factors indicate deposition in an inner shelf or nearshore environment. Many of the foraminifers found in CRP-1 also occure in the...

Distribution of benthos in late Quaternary turbidite layers of sediment cores from the North-West African continental margin, supplement to: Diester-Haass, Lieselotte (1975): Sedimentation and climate in the Late Quarternary between Senegal and Cape Verde Islands. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C20, 1-32

Lieselotte Diester-Haass
The CaCO3-contents and the fractions > 40 µm have been analysed from 5 kastenloten, one piston core and two kastengreifer taken between Senegal and Cape Verde Islands. Numerous benthonic and planktonic organisms and different terrigenous components have been distinguished. The four cores off Senegal reach middle Wuerm sediments; cores GIK12329-6 and TAG72-1 reach the V-zone and core GIK12331-4 the X-zone (Eem); the two kastengreifer contain sediments of Holocene age. Correlation of the cores has been...

Geochemistry of basement clasts from sediment core CRP-3 in the ross Sea, Antarctica, supplement to: Sandroni, Sonja; Talarico, Franco M (2001): Petrography and provenance of basement clasts and clast variability in CRP-3 drillcore (Victoria Land Basin, Antarctica). http://www.mna.unisi.it/english/Publications/TAP/TA_pdfs/Volume_08/CRP3_Science_Results/TA_08_449_Sandroni.pdf, Terra Antartica, 8(4), 449-468

Sonja Sandroni & Franco M Talarico
Distribution patterns and petrographical and mineral chemistry data are described for the most representative basement lithologies occuring as clast in the c. 824 m thick Tertiary sedimentary sequence at the CRP-3 drillsite. These are granule to bolder grain size clasts of igneous and metamorphic rocks. Within the basement clast assemblage, granitoid pebbles are the predominant lithology. They consist of dominant grey biotic-bearing monzogranite, pink biotite-hornblende monzogranite, and biotite-bearing leucomomonzgranite. Minor lithologies include: actinolite-bearing leucotonalite, microgranite,...

Documentation of sediment cores from the Great Meteor Seamount, North Atlantic, supplement to: von Stackelberg, Ulrich; von Rad, Ulrich; Zobel, B (1976): Asymmetric distribution of displaced material in calareous oozes around Great Meteor Seamount (North Atlantic). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C25, 1-46

Ulrich von Stackelberg, Ulrich von Rad & B Zobel
Sedimentological and biostratigraphic investigations of 15 cores (total length: 88 m) from the vicinity of Great Meteor seamount (about 30° N, 28° W) showed that the calcareous ooze are asymmetrically distributed around the seamount and vertically differentiated into two intervals. East and west of the seampunt, the upper "A"-interval is characterized by yellowish-brown sediment colors and bioturbation; ash layers and diatoms are restricted to the eastern cores. On both seamount flanks, the sediment of the...

Geochemical analysis of bulk sediment and interstitial water of sediment cores from the North-West African continental margin, supplement to: Seralathan, P; Hartmann, Martin (1986): Molybdenum and vanadium in sediment cores from the NW-African continental margin and their relations to climatic and environmental conditions. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C40, 1-17

P Seralathan & Martin Hartmann
Molybdenum and vanadium were analysed in 9 scediment cores recovered from the continental slope and rise off NW Africa. Additionall chemical and sedimentological parameters as well as isotope stage boundaries were available for the same core profiles from other investigations. Molybdenum, ranging between <1 and 10 ppm, occurs in two associateions, either with organic carbon and sulphides in sediments with reducing conditions or with Mn oxides in oxidized near-surface core sections. Highest values (between 4...

Composition of the sand fraction of sediment cores from the West-African continental margin, supplement to: Diester-Haass, Lieselotte (1983): Late Quaternary sedimentation processes on the West-African continental margin and climatic history of West-Africa (12-18° N). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C37, 47-84

Lieselotte Diester-Haass
Seven cores from the West African continental margin in 12-18° N have been investigated by means of a coarse fraction analysis.Four of the seven cores contain allochthonous material: turbidites and debris flow deposits. The source of the allochthonous material is in about 300-600 m water depth. The age of the slide induced debris flow deposits is at the end of oxygen isotope stage 2. One debris flow deposit is covered by a turbidite (core GIK13211-1).The...

Petrophysical investigations on sediment core CRP-2A from the Ross Sea, Antarctica, supplement to: Brink, Jason; Jarrard, Richard D (2000): Petrophysics of core plugs from CRP-2A drillhole, Victoria Land Basin, Antarctica. Terra Antartica, 7(3), 231-240

Jason Brink & Richard D Jarrard
A suite of petropysical measurements - velocity versus pressure, bulk density, porosity, matrix density, and magnetic susceptibility -was undertaken on 63 core plugs from CRP-2A. These data are used to calibrate neutron, resistivity, and magnetic susceptibility well logs. Agreement between core-plug magnetic susceptibility measurements and both well-log and whole-core data is excellent. Comparison of core-plug bulk densities with continious well-log density records shows very good agreement. Core-plug measurements of matrix density permit conversion of the...

Quantitative composition and distribution of the silt fraction in surface sediments of the North-West African continental margin, supplement to: Fütterer, Dieter K (1980): Sedimentation am NW-afrikanischen Kontinentalrand: Quantitative Zusammensetzung und Verteilung der Siltfraktion in den Oberflächensedimenten. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C33, 15-60

Dieter K Fütterer
Surface sediments from the continental slope and rise of North-West Africa between the Canary lslands and the Cape Verde Islands are mainly composed of silt-sized material (2-63 µm). A number of sampling profiles were run normal to the coast and the composition of the silt fraction was determined quantitatively by scanning electron microscope analysis.The carbonate portion of the sediment was found to be nearly exclusively of biogenic origin. The most important contributors are planktonic foraminifers...

Detailed analysis of the organic carbon content in sediment cores M0002 and M0004, supplement to: Stein, Ruediger (2007): Upper Cretaceous/Lower Tertiary black shales near the North Pole: Organic-carbon origin and source-rock potential. Marine and Petroleum Geology, 24(2), 67-73

Ruediger Stein
During IODP Expedition 302 (Arctic Coring Expedition-ACEX), the first scientific drilling campaign in the permantly ice-covered central Arctic Ocean, a 430 m thick sequence of upper Cretaceaous to Quaternary sediments has been drilled. The lower half of this sequence is composed of organic-carbon-rich (black shale-type) sediments with total organic carbon contents of about 1–14%. Significant amounts of the organic matter preserved in these sediments is of algae-type origin and accumulated under anoxic/euxinic conditions. Here, for...

Sediments and tephra layers from the southern Tyrrhenian abyssal plain near Marsili Seamount, supplement to: Keller, Jörg; Leiber, Joachim (1974): Sedimente, Tephra-Lagen und Basalte der südtyrrhenischen Tiefsee-Ebene im Bereich des Marsili-Seeberges. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C19, 62-76

Jörg Keller & Joachim Leiber
From the south-eastern Tyrrhenian deep-sea floor, four sediment cores of „Meteor“ cruise 22 (1971) are described. These cores were taken in the basin between the Aeolian Islands and the Marsili Seamount, an elevation of more tha 3000 m above the sea floor. The sedimentation of the deep-sea basin is distinguished by a sequence of turbidites with a high sedimentation rate. The composition of the clastic material and the position of the cores in the mouth...

Particle analysis in the Kara Sea, supplement to: Gaye-Haake, Birgit; Unger, Daniela; Nöthig, Eva-Maria; Okolodkov, Yuri; Fahl, Kirsten; Ittekkot, Venugopalan (2003): Particle fluxes from short-term sediment trap deployments in late summer in the southern Kara Sea. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 309-328

Birgit Gaye-Haake, Daniela Unger, Eva-Maria Nöthig, Yuri Okolodkov, Kirsten Fahl & Venugopalan Ittekkot
In September 1999 two short-term moorings with cylindrical sediment traps were deployed to collect sinking particles in bottom waters off the Ob and Yenisei river mouths. Samples were studied for their bulk composition, pigments, phytoplankton, microzooplankton, fecal material, amino acids, hexosamines, fatty acids and sterols and compared to suspended matter and surface sediments in order to collect information about the nature and cycling of particulate matter in the water column. Results of all measured components...

Abundance of ostracoda in sediment cores CRP-1 and CRP-2, supplement to: Dingle, R V (2000): Ostracoda from CRP-1 and CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 479-492

R V Dingle
Sparse, poorly preserved late Oligocene (3 species) and early Miocene (4 species) ostracod faunas have been recovered from CRP-2A, while relatively more abundant Quaternary faunas occur in CRP-1 (24 species). All taxa are marine. No definitive age assignments can be made on the two older faunas, which are not considered to be in situ, although the taxa identified are not at variance with sediment ages determined on other grounds. The Oligocene ostracods (Lithostratigraphical Unit, LSU...

Sedimentological investigations of sediment profiles from the continental slope off South Orkney Islands, supplement to: Fütterer, Dieter K; Grobe, Hannes; Grünig, Sigrun (1988): Quaternary sediment patterns in the Weddell Sea: relations and environmental conditions. Paleoceanography, 3(5), 551-561

Dieter K Fütterer, Hannes Grobe, Sigrun Grünig, Andrea Abelmann & Ulrich Bleil
Sediment patterns such as texture, composition, and facies from three selected areas of the Antarctic continental margin of the Weddell Sea are discussed in relation to environmental variations of the Quaternary hydrosphere and kryosphere. Advance and retreat of ice shelves as well as oscillations in sea ice coverage are reflected by particular sediment facies. The distribution of ice-rafted detritus tracks the Antarctic Coastal Current, and the Weddell Sea Bottom water contour current can be recognized...

Sediment accumulation rates of sediment cores from the North-West African continental margin, supplement to: Pflaumann, Uwe (1975): Late Quaternary stratigraphy based on planktonic foraminifera off Senegal. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C23, 1-46

Uwe Pflaumann
Six soft sediment cores, up to and over 9 m in length, and additional surface samples were selected for study of their planktonic foraminifera to provide information on the Holocene and Pleistocene stratigraphy of the West African continental margin south of the present boundary of the Sahara. The material was collected by the German research vessel "Meteor" during Cruise 25 in 1971. The residues larger than 160 microns determined, counted and statistically evaluated. Stratigraphical correlations...

Stable oxygen isotope composition of the sea water in the Mediterranean Sea, supplement to: Stahl, Wolfgang; Rinow, U (1973): Sauerstoffisotopenanalysen an Mittelmeerwässern. Ein Beitrag zur Problematik von Paläotemperaturbestimmungen. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C14, 55-59

Wolfgang Stahl & U Rinow
During the cruises No 17 and 22 of the German research vessel „Meteor“, 45 water samples were taken at 4 stations in the central part of the Mediterranean Sea. Mass spectrometrical analyses showed that systematic, but time variable changes of the oxygen isotope ratios occur. Deep water samples (T> 500 m) have a ± constant isotopic composition of d18O = +1.79‰ (SMOW) and a Chlorinity of 21.399‰. These data are discussed with respect to paleotemperature...

Magnetic and gravity measurements on North-South profiles across the Grosse Meteor Bank, North Atlantic, supplement to: Fleischer, U; Meyer, O; Schaaf, H (1970): Über den Aufbau der untermeerischen Tafelberge südlich der Azoren an Hand eines gravimetrisch-magnetischen Nord-Süd-Profils über die Große Meteor-Bank. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C3, 37-47

U Fleischer, O Meyer & H Schaaf
During the first section of the "Meteor" cruise No. 2 a profile was run from the Azores to the south across the flanks of the Mid-Atlantic Ridge with a chain of seamounts. The profile extended between the Cruiser (living) and the Hyeres seamounts, which, according to our soundings, form a connected massif, and across the centre of the Grosse Meteor Bank (30°N, 28.5 °W). These seamounts rise from a depth of more than 4000 m...

Quantitative component analysis of the coarse fraction of surface sediments from the Persian Gulf, supplement to: Sarnthein, Michael (1971): Oberflächensedimente im Persischen Golf und Golf von Oman. II. Quantitative Komponentenanalyse der Grobfraktion. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C5, 1-113

Michael Sarnthein
In the Persian Gulf and the Gulf of Oman marl forms the primary sediment cover, particularly on the Iranian side. A detailed quantitative description of the sediment components > 63 µ has been attempted in order to establish the regional distribution of the most important constituents as well as the criteria governing marl sedimentation in general.During the course of the analysis, the sand fraction from about 160 bottom-surface samples was split into 5 phi° fractions...

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