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  • Data  (233)
  • 2020-2024  (233)
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  • 1
    facet.materialart.
    Unknown
    A reference section through fast-spread lower oceanic crust, Wadi Gideah, Samail Ophiolite (Sultanate of Oman): Petrographic Data Table and Mineral analyses performed by EPMA (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Description: In the absence of a complete profile through fast-spreading modern oceanic crust, we established a reference profile through the paleo crust of the Samail Ophiolite (Sultanate of Oman), which is regarded as the best analogue for fast-spreading oceanic crust on land. To establish a coherent data set, we sampled hard rocks in the Wadi Gideah in the Wadi-Tayin massif from the mantle section up to the sheeted dikes. This paper reports our studies of the lower crust, a 5 km thick pile of gabbros, focusing on petrographic features and on the results of mineral analyses. We collected petrographical data from thins sections of the samples by optical microscope and performed also EPMA analyses (Electron Probe Microanalysis) of the mineral phases of the rocks. The samples have been collected during field campaigns from 2010 to 2015, and the data have been collected in a period from 2013 to 2021.
    Keywords: Electronprobe Microanalysis; Fast-spreading oceanic crust; gabbro; Mineral Analyses; Oman Ophiolite; Petrographic Data; Samail Ophiolite
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Petrographic features of rock samples of the Wadi Gideah reference profile (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Keywords: According to Gillis et al. (2014); Amphibole, altered; Amphibole, habit; Amphibole, primary original; Amphibole, shape; Clinopyroxene, altered; Clinopyroxene, grain size; Clinopyroxene, habit; Clinopyroxene, modal; Clinopyroxene, shape; Comment; Depth above Mohorovicic discontinuity; Electronprobe Microanalysis; Event label; Fast-spreading oceanic crust; gabbro; Grain size description; HAND; Iron-titanium oxides, habit; Iron-titanium oxides, shape; Latitude of event; Longitude of event; Mineral Analyses; Minerals, total alteration; Minerals, total modal primary; Olivine, altered; Olivine, grain size; Olivine, habit; Olivine, modal; Olivine, shape; OM10-A02; OM10-A03; OM10-A04; OM10-A05A; OM10-A05B; OM10-A06; OM10-A10; OM10-A11; OM10-A11-1a; OM10-A11-1b; OM10-A11-1c; OM10-A11-1d; OM10-A11-1e; OM10-A11-1f; OM10-A11-1i; OM10-A11-1j; OM10-A11-1l; OM10-A11-1m; OM10-A11-1n; OM10-A11-1o; OM10-A11-1p; OM10-A11-1q; OM10-A11-1r; OM10-A11-1s; OM10-A11-1t; OM10-A11-1u; OM10-A11-1v; OM10-A11-1w; OM10-A11-1x; OM10-A11-2; OM10-A11-3; OM10-A12-1A; OM10-A12-1B; OM10-A12-1C; OM10-A12-1D; OM10-A12-2A; OM10-A12-2B; OM10-A12-2C; OM10-A12-2D; OM10-A12-3; OM10-A13; OM10-A14; OM10-A14A; OM10-A14b; OM10-A15; OM10-A16; OM10-A17; OM10-A17-1; OM10-A17-2; OM10-A17-3A; OM10-A17-3B; OM10-A17-3C; OM10-A18; OM10-A18-1; OM10-A18-2a; OM10-A18-2B; OM10-A18-2C; OM10-A19; OM10-A20; OM10-A20A; OM10-A20B; OM10-A21; OM10-A22; OM10-A23; OM10-A23B; OM10-A24; OM10-A25; OM10-A25-1A; OM10-A25-1B; OM10-A25-1D; OM10-A25-1E; OM10-A26; OM10-A26-1; OM10-A27; OM10-A28; OM10-A29; OM10-A30; OM10-A31; OM10-A32; OM10-A33; OM10-A34; OM10-A34A; OM10-A35; OM10-A36; OM10-A37; OM11-10; OM11-9; OM11-A21A; OM11-A21B; OM11-A22; OM11-A26; OM11-A27; OM11-A27-1; OM11-A28B; OM11-A29; OM11-A29-1; OM11-A29-2; OM12-024; OM12-025; OM12-026; OM12-027; OM12-028; OM12-029; OM12-030; OM12-031; OM12-032; OM12-033; OM12-034A; OM12-034B; OM12-035; OM12-036; OM12-037; OM12-038; OM12-039; OM12-040; OM12-041; OM12-042; OM12-043; OM12-044; OM12-045; OM12-046; OM12-047; OM12-048; OM12-049; OM12-050; OM12-051; OM12-052; OM12-053; OM12-054; OM12-055; OM12-057; OM12-058; OM12-059; OM12-201; OM12-202; OM12-203; OM12-204; OM12-205; OM12-206; OM12-207; OM12-208; OM12-209; OM12-210; OM12-211; OM12-212A; OM12-212B; OM12-213; OM12-214; OM12-215; OM12-216A; OM12-216B; OM12-217; OM12-218; OM12-219; OM12-220; OM12-Hy0; OM12-Hy018; OM12-Hy023; OM12-Hy025; OM12-Hy030; OM12-Hy032A; OM12-Hy032B; OM12-Hy032C; OM12-Hy032D; OM12-Hy038; OM12-Hy039; OM12-Hy042; OM12-Hy055B; OM12-Hy058.5; OM12-Hy059; OM12-Hy059.5; OM12-Hy062; OM12-Hy068; OM12-Hy077; OM12-Hy080; OM12-Hy080.5; OM12-Hy096; OM12-Hy102; OM12-Hy103; OM12-Hy108; OM12-Hy154; OM12-Hy166; OM15-01; OM15-02; OM15-03A; OM15-03B; OM15-03E; OM15-03F; OM15-04; OM15-05; OM15-06; OM15-07; OM15-08; OM15-09; OM15-10; OM15-11; OM15-13; OM15-14; OM15-15A; OM15-15B; OM15-15C; Om15-15D; OM15-16; OM15-17; OM15-18; OM15-19A; OM15-19B; OM15-19C; OM15-20; OM15-21; OM15-22; OM15-23; OM15-24; OM15-25A; OM15-25B; OM15-26; OM15-27; OM15-28; OM15-29G; OM15-29I; OM15-29J; OM15-30; OM15-31; OM15-32; OM15-33; OM15-34; OM15-35; OM15-36; OM15-37; OM15-40; Oman; Oman Ophiolite; Orthopyroxene, altered; Orthopyroxene, grain size; Orthopyroxene, habit; Orthopyroxene, modal; Orthopyroxene, shape; Oxides, modal; Petrographic Data; Plagioclase, altered; Plagioclase, grain size; Plagioclase, habit; Plagioclase, modal; Plagioclase, shape; Plagioclase, zoning extent; Plagioclase, zoning type; Quartz; Rocks in Hydrothermal Fault Zone; Rock type; Samail Ophiolite; Sampling by hand; Texture; Texture, modified; Unit; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 5809 data points
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    DATA PANGAEA
  • 3
    facet.materialart.
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    EPMA analyses of minerals from rocks of the Wadi Gideah reference profile (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-22
    Keywords: According to Gillis et al. (2014); Aluminium oxide; Aluminium oxide, standard deviation; Anorthite content in plagioclase; Anorthite content in plagioclase, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Chromium(III) oxide; Chromium(III) oxide, standard deviation; Comment; Depth above Mohorovicic discontinuity; Electronprobe Microanalysis; Electron Probe Microanalysis (EPMA); Event label; Fast-spreading oceanic crust; gabbro; HAND; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Magnesium oxide/(Magnesium oxide/Iron oxide, FeO, total) molar ratio; Magnesium oxide/(Magnesium oxide/Iron oxide, FeO, total) molar ratio, standard deviation; Main Lithology; Manganese oxide; Manganese oxide, standard deviation; Mineral Analyses; Nickel oxide; Nickel oxide, standard deviation; Number of analyses; OM10-A11-1a; OM10-A11-1c; OM10-A11-1n; OM10-A11-1o; OM10-A11-1p; OM10-A11-1q; OM10-A11-1v; OM10-A11-1w; OM10-A11-1x; OM10-A12-1D; OM10-A13; OM10-A14; OM10-A14A; OM10-A14b; OM10-A15; OM10-A16; OM10-A17; OM10-A17-1; OM10-A17-2; OM10-A18; OM10-A18-1; OM10-A18-2a; OM10-A19; OM10-A20; OM10-A20A; OM10-A20B; OM10-A21; OM10-A22; OM10-A23; OM10-A23B; OM10-A24; OM10-A25; OM10-A26; OM10-A27; OM10-A28; OM10-A29; OM10-A30; OM10-A31; OM10-A32; OM11-A21A; OM11-A21B; OM11-A22; OM11-A26; OM11-A27; OM11-A27-1; OM11-A28B; OM11-A29; OM11-A29-1; OM11-A29-2; OM12-025; OM12-026; OM12-027; OM12-028; OM12-029; OM12-030; OM12-031; OM12-032; OM12-033; OM12-034A; OM12-034B; OM12-035; OM12-036; OM12-037; OM12-038; OM12-039; OM12-040; OM12-041; OM12-042-1; OM12-042-2; OM12-043; OM12-044; OM12-045; OM12-046; OM12-047; OM12-048; OM12-049; OM12-050; OM12-051; OM12-052; OM12-053; OM12-054; OM12-055; OM12-057; OM12-058; OM12-059; OM12-201; OM12-202; OM12-203; OM12-204; OM12-205; OM12-206; OM12-207; OM12-208; OM12-209; OM12-210; OM12-211; OM12-213; OM12-214; OM12-217; OM12-218; OM12-219; OM12-Hy0; OM12-Hy018; OM12-Hy023; OM12-Hy025; OM12-Hy030; OM12-Hy032B; OM12-Hy038; OM12-Hy039-1; OM12-Hy039-2; OM12-Hy042; OM12-Hy055B; OM12-Hy059; OM12-Hy059.5; OM12-Hy062; OM12-Hy068; OM12-Hy077; OM12-Hy080.5; OM12-Hy102-1; OM12-Hy102-2; OM12-Hy108; OM12-Hy154-1; OM12-Hy154-2; OM12-Hy166; OM15-01; OM15-02; OM15-10; OM15-13; OM15-15C; Om15-15D; OM15-18; OM15-19A; OM15-21; OM15-24; OM15-26; OM15-27; OM15-30; OM15-32; OM15-33; OM15-40; Oman; Oman Ophiolite; Petrographic Data; Phase; Potassium oxide; Potassium oxide, standard deviation; Reference/source; Rocks in Hydrothermal Fault Zone; Rock type; Samail Ophiolite; Sample comment; Sampling by hand; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Textural features; Texture; Titanium dioxide; Titanium dioxide, standard deviation; Total; Unit
    Type: Dataset
    Format: text/tab-separated-values, 18271 data points
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  • 4
    facet.materialart.
    Unknown
    EPMA analyses of amphiboles from rocks of the Wadi Gideah reference profile influenced by hydrothermal fault zones (2021)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: According to Gillis et al. (2014); After Ernst and Liu (1998); Aluminium oxide; Aluminium oxide, standard deviation; Analysis; Calcium oxide; Calcium oxide, standard deviation; Chlorine; Chlorine, standard deviation; Chromium(III) oxide; Chromium(III) oxide, standard deviation; Depth above Mohorovicic discontinuity; Electronprobe Microanalysis; Electron Probe Microanalysis (EPMA); Event label; Fast-spreading oceanic crust; Fluorine; Fluorine, standard deviation; gabbro; HAND; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Magnesium oxide; Magnesium oxide, standard deviation; Magnesium oxide/(Magnesium oxide/Iron oxide, FeO, total) molar ratio; Manganese oxide; Manganese oxide, standard deviation; Mineral Analyses; Number of analyses; OM10-A25-1D; OM12-027; OM12-030; OM12-032; OM12-042; OM12-050; OM12-051; OM12-058; OM12-059; OM12-Hy023; OM12-Hy030; OM12-Hy032B; OM12-Hy032C; OM12-Hy032D; OM12-Hy038; OM12-Hy039; OM12-Hy059; OM12-Hy059.5; OM12-Hy080.5; Oman; Oman Ophiolite; Petrographic Data; Potassium oxide; Potassium oxide, standard deviation; Rock type; Samail Ophiolite; Sample comment; Sampling by hand; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Temperature, technical; Texture; Titanium dioxide; Titanium dioxide, standard deviation; Total; Unit
    Type: Dataset
    Format: text/tab-separated-values, 927 data points
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    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    Wadi Gideah, Oman, Reference Section: Whole rock geochemistry (2022)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Description: We sampled outcrops through 6,500 m of fossil oceanic crust in Wadi Gideah (Samail ophiolite, Oman) that is regarded as best analogue of fast-spreading crust on land. To accomplish a comprehensive understanding of accretion processes in the lower crust we follow a multi-technique approach applying petrographic and petrological, microstructural, thermometric, mineral and rock chemical methods to the same samples. Here we report a full set of whole rock major and trace element data displaying systematic and contrasting compositional trends in lower and upper gabbros being correlated with stratigraphic depth in the plutonic suite.
    Keywords: Aluminium oxide; Antimony; Barium; Caesium; Calcium oxide; Cerium; Chromium; Chromium/Zirconium ratio; Cobalt; Copper; Depth above Mohorovicic discontinuity; Dysprosium; Erbium; Europium; Europium anomaly; Event label; Gadolinium; Gallium; Hafnium; HAND; Holmium; Iron oxide, FeO; Lanthanum; Lanthanum/Neodymium; Lanthanum/Ytterbium ratio; LATITUDE; Lead; Lithium; LONGITUDE; Loss on ignition; Lutetium; Magnesium number; Magnesium oxide; Manganese oxide; Molybdenum; Multi-technique, see reference (Garbe-Schönberg et al. 2022); Neodymium; Nickel; Niobium; Niobium/Lanthanum ratio; OM10-A02; OM10-A03; OM10-A04; OM10-A05A; OM10-A05B; OM10-A06; OM10-A10; OM10-A11; OM10-A11-1a; OM10-A11-1b; OM10-A11-1c; OM10-A11-1d; OM10-A11-1f; OM10-A11-1i; OM10-A11-1j; OM10-A11-1l; OM10-A11-1n; OM10-A11-1p; OM10-A11-1t; OM10-A11-1u; OM10-A11-1v; OM10-A11-1x; OM10-A11-2; OM10-A11-3; OM10-A12-1A; OM10-A12-2C; OM10-A13; OM10-A14b; OM10-A15; OM10-A16; OM10-A17; OM10-A17-1; OM10-A17-2; OM10-A18; OM10-A18-1; OM10-A18-2a; OM10-A19; OM10-A20; OM10-A21; OM10-A23; OM10-A24; OM10-A25; OM10-A26-1; OM10-A27; OM10-A28; OM10-A29; OM10-A30; OM10-A31; OM10-A32; OM11-A22; OM11-A26; OM11-A27; OM12-025; OM12-026; OM12-027; OM12-028; OM12-029; OM12-031; OM12-032; OM12-033; OM12-034A; OM12-035; OM12-037; OM12-038; OM12-039; OM12-040; OM12-042; OM12-043; OM12-044; OM12-045; OM12-046; OM12-047; OM12-048; OM12-050; OM12-053; OM12-054; OM12-055; OM12-058; OM12-201; OM12-202; OM12-211; OM12-Hy023; OM12-Hy058.5; OM12-Hy059; OM12-Hy059.5; OM12-Hy062; OM12-Hy068; OM12-Hy077; OM12-Hy080; OM12-Hy080.5; OM12-Hy096; OM12-Hy102; OM12-Hy103; OM12-Hy108; Oman; Oman Drilling Project; Oman Ophiolite; Phosphorus pentoxide; Potassium oxide; Praseodymium; Rock type; Rubidium; Samarium; Samarium/Ytterbium ratio; Sample comment; Sampling by hand; Scandium; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Thorium; Thulium; Titanium dioxide; Tungsten; Unit; Uranium; Vanadium; Whole rock geochemistry; Ytterbium; Yttrium; Yttrium/Holmium ratio; Zinc; Zirconium; Zirconium/Hafnium ratio; Zirconium/Yttrium ratio
    Type: Dataset
    Format: text/tab-separated-values, 6384 data points
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  • 6
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    1 year seismological experiment at Strokkur in 2017/18 (2020)
    GFZ Data Services
    Details
    Publication Date: 2024-02-23
    Description: Abstract
    Description: Strokkur_1yr is a one year seismological experiment realized at the most active geyser on Iceland by Eva Eibl (University of Potsdam) in collaboration with Thomas R. Walter, Phillippe Jousset, Torsten Dahm, Masoud Allahbakhshi, Daniel Müller from GFZ Potsdam and Gylfi P. Hersir from ISOR Iceland. The geyser is part of the Haukadalur geothermal area in south Iceland, which contains numerous geothermal anomalies, hot springs, and basins (Walter et al., 2018). Strokkur is a pool geyser and has a silica sinter edifice with a water basin on top, which is about 12 m in diameter with a central tube of more than 20 m depth. The aim of the seismic experiment is to monitor eruptions of Strokkur geyser from June 2017 to June 2018 using four broadband seismic stations (Nanometrics Trillium Compact Posthole 20 s). Sensors were buried 30–40 cm deep in the ground at distances of 38.8 m (G4, SE), 47.3 m (G3, SW), 42.5 m (G2, N), and 95.5 m (G1, NE) from Strokkur center. Data gaps represent 15–44 % of the records as during the winter period maintenance intervals were longer and battery drainage was high. However, at any given time, at least one station recorded the eruptions. From this dataset, converted to MSEED using Pyrocko, a catalogue of 70,000 eruptions was determined and further investigated in Eibl et al. (2020) Waveform data are available from the GEOFON data centre, under network code 7L.
    Keywords: Broadband seismic waveforms ; Seismic monitoring ; temporary local seismic network ; Monitoring system ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 VOLCANIC ACTIVITY ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS
    Type: Dataset , Seismic Network
    Format: ~100G
    Format: .mseed
    Format: XML
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    DATA GFZ
  • 7
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    Satellite derived and ice model data off Western Antarctic Peninsula (2020)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: Antarctic sea ice; AWI_Envi; File content; File format; File name; File size; highly branched isoprenoids; IPSO25; Paleoclimate; Polar Terrestrial Environmental Systems @ AWI; sea ice proxy; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 10 data points
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  • 8
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    The global water resources and use model WaterGAP v2.2d - Standard model output (2020)
    PANGAEA
    Details
    Publication Date: 2023-04-14
    Description: Assessing global freshwater resources and human water demand is of value for a number of needs but challenging. The global water use and water availability model WaterGAP is in development since 1996 and serves a range of applications and topics as such as Life Cycle Assessments, a better understanding of terrestrial water storage variations (e.g., jointly with satellite observations), water (over)use and consequently depletion of water resources, as well as model evaluation and model development. In the paper connected to this dataset, the newest model version, WaterGAP 2.2d is described by providing the water balance equations, insights to input data used and typical model applications. The most important and requested model outputs (total water storage variations, streamflow and water use) are evaluated against observation data. Standard model output is described and the reader is guided to the location where those data can be downloaded. Caveats of specific output data and an overview of model applications as well as an outlook of future model development lines are presented as well.
    Keywords: File format; File name; File size; GHM; global Hydrological Modelling; hydrology; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 204 data points
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  • 9
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    (Table S3) Relative abundance of each phospholipid fatty acid to the total PLFA content of each deep-sea sponge species and substrate (2020)
    PANGAEA
    Details
    Publication Date: 2023-03-25
    Keywords: Biomarker; Deep-sea Sponge Grounds Ecosystems of the North Atlantic; Equivalent chain length; Geodia barretti, phospholipid fatty acid; Geodia barretti, phospholipid fatty acid, standard deviation; Hymedesmia paupertas, phospholipid fatty acid; Hymedesmia paupertas, phospholipid fatty acid, standard deviation; NorthAtlantic; Phospholipid fatty acid; SponGES; Vazella pourtalesii, phospholipid fatty acid; Vazella pourtalesii, phospholipid fatty acid, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 347 data points
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  • 10
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    Organic and inorganic proxies, and concentration of diatoms from surface sediment PS97/ Sterols preserved in surface sediments PS97/ Diatoms of surface sediments PS97 (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Description: The Antarctic Circumpolar Current is the world's largest current system connecting all major ocean basins of the global ocean. Its flow, driven by strong westerly winds, is constricted to its narrowest extent in the Drake Passage, located between South America and the Antarctic Peninsula. Due to the remoteness of the area, harsh weather conditions and strong bottom currents, sediment recovery is difficult and data coverage is still inadequate. Here, we report on the composition of 51 surface sediments collected during the R/V Polarstern PS97 expedition (February-April 2016) across the western and central Drake Passage, from the Chilean/Argentinian continental margin to the South Shetland Islands and the Bransfield Strait (water depth: ∼100-4000 m). We studied microfossils (diatoms), bulk sediment composition and geochemical proxies (biogenic opal, organic carbon, calcium carbonate, carbon and nitrogen stable isotopes, sterols and photosynthetic pigments), and evaluated how they respond to, and reflect oceanic domains and polar to subpolar frontal systems in this region. Our multi-proxy approach shows a strong relationship between the composition of surface sediments and ocean productivity, terrigenous input, intensity of ocean currents, and ice proximity, clearly differentiating among 4 biogeographical zones. The Subantarctic Zone was characterized by warmer-water diatoms, high carbonate (〉45%) and low organic carbon contents (avg. 0.26%), as well as low concentrations of pigments (avg. 1.75 μg/g) and sterols (avg. 0.90 μg/g). A general N-S transition from carbonate-rich to opal-rich sediment was observed at Drake Passage sites of the Polar Front and Permanently Open Ocean Zone. These sites were characterized by low organic carbon content (0.22%), high relative abundances of heavily silicified diatoms (≥60% Fragilariopsis kerguelensis), and abundant foraminifera at shallower stations. Approaching the Antarctic Peninsula in the Transitional Zone, an increase in the concentrations of pigments and sterols (avg. 2.57 μg/g and 1.44 μg/g, respectively) and a strong decrease in carbonate content was observed. The seasonal Sea-Ice Zone in the southern section of the study area, had the highest contents of biogenic opal (avg. 14.6%) and organic carbon (avg. 0.7%), low carbonate contents (avg. 2.4%), with the occurrence of sea-ice-related diatoms and sterols. In all zones, terrigenous input was detected, although carbon/nitrogen ratios and δ13Corg suggest a predominance of marine-derived organic matter; lower values of δ13Corg occurred south of the Polar Front. The new results presented here constitute a highly valuable reference dataset for the calibration of microfossil and geochemical proxies against observational data and provide a useful regional baseline for future paleo-research.
    Keywords: diatoms; Drake Passage; organic carbon; Photosynthetic pigments; sterols; surface sediments
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
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