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  • 1995-1999  (1.634.651)
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  • 1
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    (Table 2) Hydrogen sulphide and methane content, and loss on ignition in sediments obtained in the Gotland Deep, Baltic Sea (1998)
    PANGAEA
    In:  Supplement to: Schmaljohann, Rolf; Piker, Levent; Imhoff, Johannes F (1998): The distribution of methane and hydrogen sulfide in basin sediments of the central and southern Baltic Sea. Meyniana, 50, 191-211, https://doi.org/10.2312/meyniana.1998.50.191
    Details
    Publikationsdatum: 2024-05-21
    Beschreibung: The distribution of methane and hydrogen sulfide concentrations in sediments of various basins of the Baltic Sea was investigated during 4 cruises in 1995 and 1996. Significant differences in the concentrations of both compounds were recorded between the basins and also between different areas within the Gotland Deep. High-methane sediments with distinctly increasing concentrations from the surface to deeper layers were distinguished from low-methane sediments without a clear gradient. Methane concentrations exhibited a fair correlation with the sediment accumulation rate, determined by measuring the total thickness of the post-Ancylus Holocene sequence on echosounding profiles in the Gotland Deep. Only weak correlations were observed with the content of organic matter in the surface layers of the sediments. Hydrogen sulfide concentrations in the sediments showed a positive correlation with methane concentrations, but, in contrast to methane concentrations, were strongly influenced by the transition from oxic to anoxic conditions in the water column between 1995 and 1996. Sediments in the deepest part of the Gotland Basin (〉237 m water depth), covering an area of approximately 35 km**2, were characterized by especially high accumulation rates (〉70 cm/ka) and high methane and hydrogen sulfide contents. Concentrations of these compounds decreased rapidly towards the slope of the basin.
    Schlagwort(e): AL93; Arcona Basin, Baltic Sea; BY15A; Date; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Direction; Distance; Elevation 2; Event label; GC; GotlDeep; Gravity corer; Hydrogen sulfide; Layer thickness; Loss on ignition; Methane, sediment; Sample code/label
    Materialart: Dataset
    Format: text/tab-separated-values, 613 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 2
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Apparent places of fundamental stars : ... for 64 stars selected from the Sixth catalogue of fundamental stars (1)
    Karlsruhe : Braun ; 1.1941(1940) - 59.1999(1997); 2000(1999) -
    Details Verfügbarkeit
    Signatur: S 91.0710 ; S 91.0710 (2020) ; S 91.0710 (2021) ; S 91.0710 (2022) ; S 91.0710 (2023)
    Materialart: Schriftenreihen ausleihbar
    ISSN: 0174-254X
    Standort: Archiv - Bitte bestellen
    Standort: Archiv - Bitte bestellen
    Standort: Archiv - Bitte bestellen
    Standort: Archiv - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Nd and Sm content and isotopic composition of the carbonate-free clay fraction of sediment core HU90-013-013 (1999)
    PANGAEA
    In:  Supplement to: Fagel, Nathalie; Innocent, Christophe; Stevenson, Ross K; Hillaire-Marcel, Claude (1999): Deep circulation changes in the Labrador Sea since the Last Glacial Maximum: New constraints from Sm-Nd data on sediments. Paleoceanography, 14(6), 777-788, https://doi.org/10.1029/1999PA900041
    Details
    Publikationsdatum: 2024-05-18
    Beschreibung: Sm-Nd concentrations and Nd isotopes were investigated in the fine fraction of two Labrador Sea cores to reconstruct the deep circulation patterns through changes in sedimentary supply since the last glacial stage. Three sources are involved: the North American Shield, Palaeozoic rocks from northeastern Greenland, and mid-Atlantic volcanism. The variable input of these sources provides constraints on the relative sedimentary supply, in conjunction with inception of deep currents. During the last glacial stage a persistent but sluggish current occurred inside the Labrador Basin. An increasing discharge of volcanic material driven by the North East Atlantic Deep Water is documented since 14.3 kyr, signaling the setup of a modern-like deep circulation pattern throughout the Labrador, Irminger, and Iceland basins. During the last deglacial stage the isotopic record was punctually influenced by erosion processes related mainly to ice-sheet instabilities, especially 11.4, 10.2, and 9.2 kyr ago.
    Schlagwort(e): Age, 14C milieu/reservoir corrected (-400 yr); Age, dated; Age, mineral; Calendar age; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; HU90-13-013; HUD90/13; Hudson; Marine isotopic stage; Neodymium; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; Northwest Atlantic; PC; Piston corer; Samarium; Samarium-147/Neodymium-144 ratio; ε-Neodymium
    Materialart: Dataset
    Format: text/tab-separated-values, 555 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 4
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    Comparisons of z values between fine-grained titanomagnetites within interstitial glass and large-grained titanomaghemtes in older ocean-floor basalts (1999)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-15
    Beschreibung: Transmission electron microscopy observations and rock magnetic measurements reveal that alteration of fine- and large-grained iron-titanium oxides can occur at different rates. Fine-grained titanomagnetite occurs as a crystallization product within interstitial glass that originated as an immiscible liquid within a fully differentiated melt; in several samples with ages to 32 Ma it displays very little or no oxidation (z = ca. 0). In contrast, samples with ages of 10 Ma or older are observed to also contain highly oxidized (z 〉/= 0.66) large-grained titanomaghemite. These large grains, having originated by direct crystallization from melt, are associated with pore space. Such pore space can serve as a conduit for fluids that promote alteration, whereas fine grains may have been "armored" against alteration by the glass matrix in which they are embedded. Apparently, alteration of oceanic crust is a heterogeneous process on a microscopic scale. The existence of pristine, fine-grained titanomagnetite in the interstitial glass of older ocean-floor basalts that have undergone significant alteration implies that such glassy material is capable of carrying original thermal remanent magnetization and may be suitable for paleointensity determinations.
    Schlagwort(e): 34-320B; 37-335; 73-519A; 82-556; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg34; Leg37; Leg73; Leg82; North Atlantic; North Atlantic/RIDGE; South Atlantic/RIDGE; South Pacific/BASIN
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 5
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    Chemical composition of bottom sediments and rocks from DSDP Holes 3-14 through 64-477 (1998)
    PANGAEA
    In:  Supplement to: Gurvich, Evgeny G (1998): Metallonosnye Osadki Mirovogo Okeana (Metalliferous Sediments of the World Ocean). Nauchnii Mir (Moscow), 340 pp
    Details
    Publikationsdatum: 2024-05-15
    Beschreibung: Data on analyses of chemical composition of DSDP samples of bottom sediments and rocks carried out in P.P. Shirshov Institute of Oceanology are reported. Basal sediments and sedimentary rocks prevail in the sample set.
    Schlagwort(e): 11-100; 11-105; 12-112; 12-114; 12-118; 16-157; 16-159; 16-160; 16-161A; 16-162; 17-165A; 17-167; 17-170; 19-183; 19-192A; 21-203; 22-211; 22-212; 22-213; 22-215; 23-220; 23-221; 23-223; 23-224; 24-231; 24-235; 24-236; 24-238; 25-239; 25-245; 25-248; 25-249; 26-250A; 26-251A; 26-256; 26-257; 27-259; 27-260; 27-261; 28-264; 28-265; 28-266; 28-267; 29-278; 29-279A; 29-280A; 29-282; 30-287; 30-289; 31-291; 31-292; 31-293; 31-294; 3-14; 3-15; 3-18; 3-19; 3-20A; 32-303; 32-303A; 32-313; 37-332A; 37-332B; 37-333; 37-334; 37-335; 38-336; 38-338; 38-342; 38-345; 38-348; 39-354; 39-355; 39-357; 41-367; 42-373A; 43-384; 43-386; 43-387; 45-395; 45-396; 48-403; 49-407; 49-408; 49-409; 49-410; 49-412; 49-413; 5-32; 5-37; 5-38; 5-39; 54-419; 54-420; 54-421; 54-422; 54-423; 54-425; 54-427; 54-428; 54-429; 58-442A; 58-442B; 58-443; 58-444A; 58-446; 59-447A; 59-448; 59-449; 60-456; 60-458; 60-459B; 61-462; 62-465A; 63-469; 63-470; 63-470A; 63-471; 63-472; 63-473; 64-474A; 64-475; 64-477; 7-63; 7-66; 8-74; 8-75; 9-77B; 9-78; 9-79; 9-80; 9-80A; 9-81; 9-82; 9-83; 9-84; Antarctic Ocean/BASIN; Antarctic Ocean/CONT RISE; Antarctic Ocean/RIDGE; Antarctic Ocean/Tasman Sea; Antarctic Ocean/Tasman Sea/RIDGE; Archive of Ocean Data; ARCOD; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Indian Ocean//BASIN; Indian Ocean//FRACTURE ZONE; Indian Ocean//PLAIN; Indian Ocean//PLATEAU; Indian Ocean//RIDGE; Indian Ocean/Arabian Sea/HILL; Indian Ocean/Arabian Sea/PLAIN; Indian Ocean/Arabian Sea/RIDGE; Indian Ocean/Gulf of Aden/BASIN; Leg11; Leg12; Leg16; Leg17; Leg19; Leg21; Leg22; Leg23; Leg24; Leg25; Leg26; Leg27; Leg28; Leg29; Leg3; Leg30; Leg31; Leg32; Leg37; Leg38; Leg39; Leg41; Leg42; Leg43; Leg45; Leg48; Leg49; Leg5; Leg54; Leg58; Leg59; Leg60; Leg61; Leg62; Leg63; Leg64; Leg7; Leg8; Leg9; Mediterranean Sea/BASIN; North Atlantic; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/FRACTURE ZONE; North Atlantic/HILL; North Atlantic/Norwegian Sea; North Atlantic/Norwegian Sea/BASIN; North Atlantic/Norwegian Sea/PLATEAU; North Atlantic/PLAIN; North Atlantic/PLATEAU; North Atlantic/RIDGE; North Atlantic/SEDIMENT POND; North Atlantic/VALLEY; North Pacific; North Pacific/ABYSSAL FLOOR; North Pacific/BASIN; North Pacific/CONT RISE; North Pacific/ESCARPMENT; North Pacific/FAN; North Pacific/Gulf of California/BASIN; North Pacific/Gulf of California/CONT RISE; North Pacific/Gulf of California/SLOPE; North Pacific/GUYOT; North Pacific/HILL; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/CONT RISE; North Pacific/Philippine Sea/RIDGE; North Pacific/Philippine Sea/TRENCH; North Pacific/PLAIN; North Pacific/PLATEAU; North Pacific/RIDGE; North Pacific/SEDIMENT POND; North Pacific/TRENCH; North Pacific/TROUGH; North Pacific/VALLEY; South Atlantic/BASIN; South Atlantic/CONT RISE; South Atlantic/HILL; South Atlantic/PLAIN; South Atlantic/RIDGE; South Atlantic/VALLEY; South Pacific/BASIN; South Pacific/CONT RISE; South Pacific/Coral Sea; South Pacific/PLATEAU; South Pacific/RIDGE; South Pacific/VALLEY
    Materialart: Dataset
    Format: application/zip, 128 datasets
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Density and water content of sediment core GeoB1312-2 (1997)
    PANGAEA
    In:  Department of Geosciences, Bremen University
    Details
    Publikationsdatum: 2024-05-15
    Schlagwort(e): 06MT15_2; Calculated from mass/volume; Density, dry bulk; Density, wet bulk; DEPTH, sediment/rock; Eastern Rio Grande Rise; GeoB; GeoB1312-2; Geosciences, University of Bremen; Gravity corer (Kiel type); M15/2; Meteor (1986); Porosity; SL; Water content, wet mass
    Materialart: Dataset
    Format: text/tab-separated-values, 328 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 7
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    Meiofauna metazoa abundance in surface sediments off Svalbard (1999)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-15
    Schlagwort(e): ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; Calculated from mass/volume; DEPTH, sediment/rock; Elevation of event; Event label; Fram Basin; Giant box corer; GKG; Latitude of event; Longitude of event; Meiofauna, abundance of metazoa; Meiofauna, metazoa, biomass as carbon; Quaternary Environment of the Eurasian North; QUEEN; Svalbard Shelf; Y80_KG836; Y80_KG838; Y80_KG839; Y80_KG840; Y80_KG842; Y80_KG845; Y80_KG846; Y80_KG849; Ymer; YMER-80
    Materialart: Dataset
    Format: text/tab-separated-values, 15 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 8
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    Petrophysical measurements on core plug samples of sediment core CRP-1 (Table 1) (1998)
    PANGAEA
    In:  Supplement to: Brink, Jason; Jarrard, Richard D (1998): Petrophysics of core plugs from CRP-1 drillhole, Victoria Land Basin, Antarctica. Terra Antartica, 5(3), 291-297, hdl:10013/epic.28342.d001
    Details
    Publikationsdatum: 2024-05-15
    Beschreibung: This paper reports measurements of velocity vs pressure and of bulk density, porosity, matrix density, and magnetic susceptibility in 18 core plugs from CRP-1. Comparison of our bulk densities with continuous whole-core density records shows very good agreement. Core-plug measurements of matrix density permit conversion of the whole-core density record to porosity. Agreement between our magnetic susceptibility measurements and the continuous, whole-core data is excellent. In contrast, our atmospheric pressure measurements of P-wave velocity are ~10% faster than whole-core data obtained at the same pressure. Our measurements of velocity versus pressure indicate that in situ P-wave velocities are probably only 1-3% higher than those measured at atmospheric pressure. Although the Miocene section has undergone significant exhumation, we do not observe typical exhumation signatures of anomalously low initial velocities followed by microcrack closing as pressure is increased. Instead, velocity response to pressure appears to be dominated by a small amount of post-exhumation cementation.
    Schlagwort(e): 16 km ENE Cape Roberts; Calculated; Calculated from mass/volume; Cape Roberts Project; Core wireline system; CRP; CRP-1; CWS; Density, grain; Density, wet bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Magnetic susceptibility, volume; off Cape Roberts, Ross Sea, Antarctica; Porosity; Sampling/drilling ice; Susceptibility unit Kappabridge KLY-2; Velocity, compressional/shear wave ratio; Velocity, compressional wave; Velocity, shear wave
    Materialart: Dataset
    Format: text/tab-separated-values, 139 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 9
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    CaCO3, TOC, sedimentation rate and isotopes of sediment core GeoB1041-1 (1999)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-15
    Schlagwort(e): Calcium carbonate; Calculated; Calculated from mass/volume; Carbon, organic, total; Density, dry bulk; DEPTH, sediment/rock; Element analyser CHN; Element analyser CHN, LECO; GeoB; GeoB1041-1; Geosciences, University of Bremen; Giant box corer; GKG; Globigerinoides ruber pink, δ13C; Globigerinoides ruber pink, δ18O; M6/6; Mass spectrometer Finnigan MAT 251; Meteor (1986); Sedimentation rate; Walvis Ridge
    Materialart: Dataset
    Format: text/tab-separated-values, 63 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 10
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    CaCO3, TOC, sedimentation rate and density of sediment core GeoB1105-3 (1999)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-15
    Schlagwort(e): Calcium carbonate; Calculated; Calculated from mass/volume; Carbon, organic, total; Density, dry bulk; DEPTH, sediment/rock; Element analyser CHN; Element analyser CHN, LECO; Equatorial Atlantic; GeoB; GeoB1105-3; Geosciences, University of Bremen; Giant box corer; GKG; M9/4; Meteor (1986); Sedimentation rate
    Materialart: Dataset
    Format: text/tab-separated-values, 28 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
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