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  • 1995-1999  (1,634,650)
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  • 1
    Publication Date: 2024-05-15
    Description: 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.
    Keywords: 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
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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  • 2
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    Unknown
    PANGAEA
    In:  Supplement to: Gurvich, Evgeny G (1998): Metallonosnye Osadki Mirovogo Okeana (Metalliferous Sediments of the World Ocean). Nauchnii Mir (Moscow), 340 pp
    Publication Date: 2024-05-15
    Description: 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.
    Keywords: 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
    Type: Dataset
    Format: application/zip, 128 datasets
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  • 3
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    PANGAEA
    In:  Department of Geosciences, Bremen University
    Publication Date: 2024-05-15
    Keywords: 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
    Type: Dataset
    Format: text/tab-separated-values, 328 data points
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  • 4
    Publication Date: 2024-05-15
    Keywords: 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
    Type: Dataset
    Format: text/tab-separated-values, 15 data points
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  • 5
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    PANGAEA
    In:  Department of Geosciences, Bremen University
    Publication Date: 2024-05-15
    Keywords: Calcium carbonate; Calculated as weight ratio; Calculated from mass/volume; Carbon, organic, total; Carbon, total; Carbon/Nitrogen ratio; Density, dry bulk; Density, wet bulk; DEPTH, sediment/rock; Element analyser CHN-O Rapid, Heraeus; GeoB; GeoB1602-7; Geosciences, University of Bremen; M20/1; Mass spectrometer Finnigan Delta-E; Meteor (1986); MUC; MultiCorer; Nitrogen, total; off Cape Blanc; Opal, auto analysis (Müller & Schneider, 1993); Opal, biogenic silica; Porosity; Silicon Cycling in the World Ocean; SINOPS; Water content, wet mass; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 363 data points
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  • 6
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    Unknown
    PANGAEA
    Publication Date: 2024-05-15
    Keywords: Baltic Sea System Study; BASYS; Calculated; Calculated (Petelin, 1967 Grain size analysis of marine bottom sediments); Calculated (Trask, 1932, Houston, Gulf Pab. Co 67 pp); Calculated from mass/volume; Density, wet bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gotland Basin, Baltic Sea; Grain size class (Bezrukov & Lisitzin, 1960, Proceed. Inst. Oceanol., USSR, 32); Gravity corer (Kiel type); Gulf of Riga; Himmerfjarden; IOW211650-4; KOT99/97/02.1; Median, grain size; Petr Kottsov; Porosity; Size fraction 〈 0.001 mm, clay; Size fraction 0.005-0.001 mm; Size fraction 0.010-0.005 mm; Size fraction 0.050-0.010 mm; Size fraction 0.100-0.050 mm; SL; Sorting in phi; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 237 data points
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  • 7
    Publication Date: 2024-05-15
    Keywords: Age model; Age model, SPECMAP chronology, Imbrie et al. (1984); Aluminium; Barium; Brazil Basin; Calcium carbonate; Calculated from mass/volume; Carbon, organic, total; Cibicidoides wuellerstorfi, δ18O; Density, dry bulk; DEPTH, sediment/rock; Element analyser CHN; Element analyser CHN, LECO; GeoB; GeoB1505-2; Geosciences, University of Bremen; Gravity corer (Kiel type); HF/HNO3/H2O2 pressure digestion; Iron; M16/2; Magnesium; Manganese; Mass spectrometer Finnigan MAT 251; Meteor (1986); Potassium; SL; Titanium
    Type: Dataset
    Format: text/tab-separated-values, 1935 data points
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  • 8
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    Unknown
    PANGAEA
    Publication Date: 2024-05-15
    Keywords: Baltic Sea System Study; BASYS; Calculated; Calculated (Petelin, 1967 Grain size analysis of marine bottom sediments); Calculated (Trask, 1932, Houston, Gulf Pab. Co 67 pp); Calculated from mass/volume; Density, wet bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Giant gravity corer AWI; Gotland Basin; Grain size class (Bezrukov & Lisitzin, 1960, Proceed. Inst. Oceanol., USSR, 32); GSL; Gulf of Riga; IOW009602-1GC-2; KOT00/96/02; Median, grain size; Petr Kottsov; Porosity; Size fraction 〈 0.001 mm, clay; Size fraction 〉 0.100 mm; Size fraction 0.005-0.001 mm; Size fraction 0.010-0.005 mm; Size fraction 0.050-0.010 mm; Size fraction 0.100-0.050 mm; Sorting in phi; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 247 data points
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  • 9
    Publication Date: 2024-05-15
    Keywords: ARK-VIII/3; AWI_Paleo; Bartington MS2B bulk sensor; Bartington MS2B bulk sensor 460 Hz; Calculated; Calculated from mass/volume; Density, wet bulk; DEPTH, sediment/rock; KAL; Kasten corer; Magnetic susceptibility, volume; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19/245; PS19 ARCTIC91; PS2212-3; Quaternary Environment of the Eurasian North; QUEEN; Susceptibility, frequency dependence; Susceptibility, specific; Water content, wet mass; Yermak Plateau
    Type: Dataset
    Format: text/tab-separated-values, 260 data points
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  • 10
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    Unknown
    PANGAEA
    Publication Date: 2024-05-15
    Keywords: ARK-XIII/2; AWI_Paleo; Bartington MS2B bulk sensor; Bartington MS2B bulk sensor 460 Hz; Calculated from mass/volume; Density, wet bulk; DEPTH, sediment/rock; KAL; Kasten corer; Magnetic susceptibility, volume; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS2837-5; PS44; PS44/065; Quaternary Environment of the Eurasian North; QUEEN; Susceptibility, frequency dependence; Susceptibility, specific; Yermak Plateau
    Type: Dataset
    Format: text/tab-separated-values, 328 data points
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