269 Works

Palynological and stratigraphic record from Löddigsee in Mecklenburg-Vorpommern, Germany, supplement to: Jahns, Susanne (2006): Palynological investigations into the Late Pleistocene and Holocene history of vegetation and settlement at the Löddigsee, Mecklenburg, Germany. Vegetation History and Archaeobotany, 16, 157-169

Susanne Jahns
A Late Pleistocene and Holocene sediment core from the nowadays terrestrialised portion of the Löddigsee in Southern Mecklenburg, Germany was palynologically investigated. The lake is situated in the rarely investigated Young moraine area at the transition from the Weichselian to the Saalian glaciation. The high-resolution pollen diagram contributes to the establishment of the north-eastern German Late Pleistocene pollen stratigraphy. The vegetation distribution pattern after the end of the Weichselian is in good agreement with other...

Rock magnetism and X-ray flourescence spectrometry analyses on sediment cores of the Lake Huguang Maar, Southeast China, supplement to: Yancheva, Gergana; Nowaczyk, Norbert R; Mingram, Jens; Dulski, Peter; Schettler, Georg; Negendank, Jörg F W; Liu, Jiaqi; Sigman, Daniel M; Peterson, Larry S; Haug, Gerald H (2007): Influence of the intertropical convergence zone on the East Asian monsoon. Nature, 445, 74-77

Gergana Yancheva, Norbert R Nowaczyk, Jens Mingram, Peter Dulski, Georg Schettler, Jörg F W Negendank, Jiaqi Liu, Daniel M Sigman, Larry S Peterson & Gerald H Haug
The Asian/Australian monsoon is an important component of the Earth's climate system that influences the societal and economic activity of roughly half the world's population. The past strength of the rain-bearing East Asian summer monsoon can be reconstructed with archives such as cave deposits, but the winter monsoon has no such signature in the hydrological cycle and has thus proved difficult to reconstruct. Here we present high-resolution records of the magnetic properties and the titanium...

Daily mean surface meteorology and river discharge in Central Sulawesi for the period 2002-2005, supplement to: Leemhuis, Constanze (2006): The Impact of El Niño Southern Oscillation Events on Water Resource Availability in Central Sulawesi, Indonesia: A hydrological modelling approach. PhD Thesis, Georg-August-Universität zu Göttingen, Germany, 172 pp

Constanze Leemhuis
The El Niño/ Southern Oscillation (ENSO) phenomenon is the strongest known natural interannual climate fluctuation. The most recent two extreme ENSO events of 1982/83 and 1997/98 severley hit the socio-economy of main parts of Indonesia. As the climate variability is not homogeneous over the whole Archipelago of Indonesia, ENSO events cause negative precipitation anomalies of diverse magnitude and uration in different regions. Understanding the hydrology of humid tropical catchments is an essential prerequisite to investigate...

Recent ostracods in surface sediment samples from Admiralty Bay, King George Island, West Antarctica, supplement to: Majewski, Wojciech; Olempska, Ewa (2005): Recent ostracods from Admirality Bay, King George Island, West Antarctica. Polish Polar Research, 26(1), 13-36

Wojciech Majewski & Ewa Olempska
Ostracods from Admiralty Bay on King George Island (South Shetland Islands) represent 29 podocopid species, belonging to 19 genera, one cladocopid and six myodocopid species. They were recovered from Recent marine and/or glacio-marine sediment samples from water depths of up to 520 m. These ostracods constitute a variable assemblage, which is overall typical for the Antarctic environment. Shallow-water assemblages tend to be more variable in terms of frequencies and species richness than deep-water assemblages. The...

Clay mineral and stratigraphic record of two sediment cores from the Aegean Sea, supplement to: Ehrmann, Werner; Schmiedl, Gerhard; Hamann, Yvonne; Kuhnt, Tanja; Hemleben, Christoph; Siebel, Wolfgang (2007): Clay minerals in late glacial and Holocene sediments of the northern and southern Aegean Sea. Palaeogeography, Palaeoclimatology, Palaeoecology, 249(1-2), 36-57

Werner Ehrmann, Gerhard Schmiedl, Yvonne Hamann, Tanja Kuhnt, Christoph Hemleben & Wolfgang Siebel
Different source areas, oceanography and climate regimes influenced the clay mineral assemblages and grain size distribution of two sediment cores from the North and South Aegean Sea during the last glacial and the Holocene. In the North Aegean Sea, clay mineral composition is mainly controlled by sea level evolution, melting of southeastern European glaciers, and establishment of the connection between the Black Sea and Aegean Sea. The long-term development of clay mineral assemblages in the...

Miocene palaeoclimate reconstrutions from 11 sites in the Ukraine, supplement to: Syabryaj, Svetlana; Molchanoff, Serge; Utescher, Torsten; Bruch, Angela A (2007): Vegetation and palaeoclimate in the Miocene of Ukraine. Palaeogeography, Palaeoclimatology, Palaeoecology, 253(1-2), 169-184

Svetlana Syabryaj, Serge Molchanoff, Torsten Utescher & Angela A Bruch
Miocene deposits (marine and terrestrial) distributed throughout the whole territory of Ukraine contain numerous palaeontological remains including plant macro- and microfossils. The Miocene strata of Ukraine belong to the Central and the Eastern Paratethys and deposits from these regions have been studied palynologically. For the reconstruction of the vegetation of lowland and mountain areas in Ukraine palynological data have been complemented with data obtained from carpological and foliar studies. To obtain quantitative palaeoclimate data to...

Geochemistry, clay mineralogy and grain size distribution in various sediment cores drilled during ODP Leg 119 on the Antarctic continental shelf off Prydz Bay, supplement to: Hambrey, Mike J; Ehrmann, Werner; Larsen, Birger (1991): Cenozoic glacial record of the Prydz Bay continental shelf, East Antarctica. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 77-132

Mike J Hambrey, Werner Ehrmann & Birger Larsen
Drilling was undertaken at five sites (739-743) on ODP Leg 119 on a transect across the continental shelf of Prydz Bay, East Antarctica, to elucidate the long-term glacial history of the area and to examine the importance of the area with respect to the development of the East Antarctic ice sheet as a whole. In addition to providing a record of glaciation spanning 36 m.y. or more, Leg 119 has provided information concerning the development...

Miocene microflora and palaeoclimate reconstructions from three sites in Bulgaria, supplement to: Ivanov, Dimiter A; Ashraf, Abdul Rahman; Mosbrugger, Volker; Palamarev, E (2002): Palynological evidence for Miocene climate change in the Forecarpathien Basin (Central Paratethys, NW Bulgaria). Palaeogeography, Palaeoclimatology, Palaeoecology, 178(1-2), 19-37

Dimiter A Ivanov, Abdul Rahman Ashraf, Volker Mosbrugger & E Palamarev
In this study we reconstruct quantitatively the Middle to Upper Miocene climate evolution in the southern Forecarpathian Basin (Central Paratethys area, Northwest Bulgaria) by applying the coexistence approach to 101 well-dated palynofloras isolated from three cores. The climatic evolution is compared with changes in vegetation and palaeogeography. The Middle Miocene was a period of a subtropical/warm–temperate humid climate with mean annual temperature (MAT) between 16 and 18°C and mean annual precipitation (MAP) between 1100 and...

Current observations near the continental slope off Portugal, supplement to: Meincke, Jens; Siedler, Gerold; Zenk, Walter (1975): Some current near the continental slope off Portugal. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A16, 15-22

Jens Meincke, Gerold Siedler & Walter Zenk
Some current meter data obtained from a mooring at 2450 m water depth near the continental slope off Portugal are presented. The mean currents at five levels with observations are northward. Mean speeds in the core of the Mediterranean Water exceed speeds at shallower levels by 2 to 3 cm/sec, indicating advection connected to this specific water mass. The current variability is dominated by semi-diurnal tidal components. Normal mode analysis reveals a predominant mode of...

Grain size distribution in surface sediments samples of the continental shelf and slope of southeast Greenland, supplement to: Sommerhoff, G (1973): Formenschatz und morphologische Gliederung des südostgrönländischen Schelfgebietes und Kontinentalabhanges. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C15, 1-54

G Sommerhoff
During "Meteor" Cruise 6/1966 in the northwest Atlantic a systematic survey of the bottom topography of the southeast Greenland continental margin was undertaken. Eighty-seven profiles transverse to the shelf edge at distances of 3-4 nautical miles and two longitudinal profiles parallel to the coast were carried out with the ELAC Narrow Beam Echo-Sounder giving a reliable record of even steep slopes. On the basis of the echo soundings the topography and morphology of the continental...

The Appendicularia and Chaetognatha from the Great Meteor Bank, Northeast Atlantic, supplement to: Bückmann, A; Kapp, H (1973): Untersuchungen am Zooplankton von der Atlantischen Kuppenfahrt der \"Meteor\", März bis Juli 1967. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D13, 11-36

A Bückmann & H Kapp
At a longtime station near the "Grosse Meteor Bank" in the North Atlantic 41 subsequent hauls were made in April 1967 with the Helgoland larva net with changing bucket device. In addition 9 hauls were made during July 1967. The catches from the depth ranges of 900-700 m, 700-500 m, 500-300 m, 300-200 m, 200-100 m, and 100-0 m were collected in separate buckets during each catch series. Contamination, though possible on principle, does not...

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...

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...

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...

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...

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,...

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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