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  • 2010-2014  (40)
  • 2000-2004  (14)
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  • 1
    Publication Date: 2024-01-09
    Keywords: 157-953C; Aluminium oxide; Calcium oxide; Calculated; Canarias Sea; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Iron oxide, Fe2O3; Joides Resolution; Leg157; Magnesium oxide; Manganese oxide; Minerals; Ocean Drilling Program; ODP; Phosphorus pentoxide; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 259 data points
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  • 2
    Publication Date: 2024-01-09
    Keywords: 157-953C; Analcite; Canarias Sea; Chlorite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Gmelinite; Gobbinsite; Heulandite; Joides Resolution; Leg157; Merlinoite; Montmorillonite; Natrolite; Ocean Drilling Program; ODP; Paulingite; Phillipsite; Sample code/label; Saponite; Sericite; Smectite; X-ray diffraction (XRD)
    Type: Dataset
    Format: text/tab-separated-values, 156 data points
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  • 3
    Publication Date: 2024-01-09
    Keywords: 157-953C; Barium; Barium, maximum; Barium, minimum; Barium, standard deviation; Calculated average/mean values; Canarias Sea; Cerium; Cerium, maximum; Cerium, minimum; Cerium, standard deviation; Copper; Copper, maximum; Copper, minimum; Copper, standard deviation; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Dysprosium; Dysprosium, maximum; Dysprosium, minimum; Dysprosium, standard deviation; Gadolinium; Gadolinium, maximum; Gadolinium, minimum; Gadolinium, standard deviation; Gallium; Gallium, maximum; Gallium, minimum; Gallium, standard deviation; Joides Resolution; Lanthanum; Lanthanum, maximum; Lanthanum, minimum; Lanthanum, standard deviation; Leg157; Manganese; Manganese, maximum; Manganese, minimum; Manganese dioxide, standard deviation; Minerals; Neodymium; Neodymium, maximum; Neodymium, minimum; Neodymium, standard deviation; Nickel; Nickel, maximum; Nickel, minimum; Nickel, standard deviation; Niobium; Niobium, maximum; Niobium, minimum; Niobium, standard deviation; Number of observations; Ocean Drilling Program; ODP; Praseodymium; Praseodymium, maximum; Praseodymium, minimum; Praseodymium, standard deviation; Rubidium; Rubidium, maximum; Rubidium, minimumimum; Rubidium, standard deviation; Samarium; Samarium, maximum; Samarium, minimumimum; Samarium, standard deviation; Sample code/label; Strontium; Strontium, maximum; Strontium, minimumimum; Strontium, standard deviation; Synchrotron X-ray fluorescence SYXRF; Tin; Tin, maximum; Tin, minimum; Tin, standard deviation; Titanium; Titanium, maximum; Titanium, minimum; Titanium, standard deviation; Vanadium; Vanadium, maximum; Vanadium, minimum; Vanadium, standard deviation; Yttrium; Yttrium, maximum; Yttrium, minimum; Yttrium, standard deviation; Zinc; Zinc, maximum; Zinc, minimum; Zinc, standard deviation; Zirconium; Zirconium, maximum; Zirconium, minimum; Zirconium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 1506 data points
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  • 4
    Publication Date: 2024-01-09
    Keywords: 157-953C; Aluminium oxide; Aluminium oxide, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Canarias Sea; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Iron oxide, Fe2O3; Iron oxide, Fe2O3, standard deviation; Joides Resolution; Leg157; Magnesium oxide; Magnesium oxide, standard deviation; Manganese oxide; Manganese oxide, standard deviation; Number of observations; Ocean Drilling Program; ODP; Phosphorus pentoxide; Phosphorus pentoxide, standard deviation; Potassium oxide; Potassium oxide, standard deviation; Sample code/label; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Titanium dioxide; Titanium dioxide, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 506 data points
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  • 5
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    Unknown
    PANGAEA
    In:  Supplement to: Utzmann, Achim; Hansteen, Thor H; Schmincke, Hans-Ulrich (2002): Trace element mobility during sub-seafloor alteration of basaltic glass from Ocean Drilling Program site 953 (off Gran Canaria). International Journal of Earth Sciences, 91(4), 661-679, https://doi.org/10.1007/s00531-001-0247-6
    Publication Date: 2024-01-09
    Description: Trace element concentrations of altered basaltic glass shards (layer silicates) and zeolites in volcaniclastic sediments drilled in the volcanic apron northeast of Gran Canaria during Ocean Drilling Program (ODP) leg 157 document variable element mobilities during low-temperature alteration processes in a marine environment. Clay minerals (saponite, montmorillonite, smectite) replacing volcanic glass particles are enriched in transition metals and rare earth elements (REE). The degree of retention of REE within the alteration products of the basaltic glass is correlated with the field strength of the cations. The high field-strength elements are preferentially retained or enriched in the alteration products by sorption through clay minerals. Most trace elements are enriched in a boundary layer close to the interface mineral–altered glass. This boundary layer has a key function for the physico-chemical conditions of the subsequent alteration process by providing a large reactive surface and by lowering the fluid permeability. The release of most elements is buffered by incorporation into secondary precipitates (sodium-rich zeolites, phillipsite, Fe- and Mn-oxides) as shown by calculated distribution coefficients between altered glasses and authigenic minerals. Chemical fluxes change from an open to a closed system behavior during prograde low-temperature alteration of volcaniclastic sediments with no significant trace metal flux from the sediment to the water column.
    Keywords: 157-953C; Canarias Sea; DRILL; Drilling/drill rig; Joides Resolution; Leg157; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 6
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    Unknown
    PANGAEA
    In:  Supplement to: Ragazzola, Federica; Foster, Laura C; Form, Armin; Anderson, Phillip S L; Hansteen, Thor H; Fietzke, Jan (2012): Ocean acidification weakens the structural integrity of coralline algae. Global Change Biology, 18(9), 2804-2812, https://doi.org/10.1111/j.1365-2486.2012.02756.x
    Publication Date: 2024-03-15
    Description: The uptake of anthropogenic emission of carbon dioxide is resulting in a lowering of the carbonate saturation state and a drop in ocean pH. Understanding how marine calcifying organisms such as coralline algae may acclimatize to ocean acidification is important to understand their survival over the coming century. We present the first long-term perturbation experiment on the cold-water coralline algae, which are important marine calcifiers in the benthic ecosystems particularly at the higher latitudes. Lithothamnion glaciale, after three months incubation, continued to calcify even in undersaturated conditions with a significant trend towards lower growth rates with increasing pCO2. However, the major changes in the ultra-structure occur by 589 µatm (i.e. in saturated waters). Finite element models of the algae grown at these heightened levels show an increase in the total strain energy of nearly an order of magnitude and an uneven distribution of the stress inside the skeleton when subjected to similar loads as algae grown at ambient levels. This weakening of the structure is likely to reduce the ability of the alga to resist boring by predators and wave energy with severe consequences to the benthic community structure in the immediate future (50 years).
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; BIOACID; Biological Impacts of Ocean Acidification; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cell density; Cell density, standard deviation; Coast and continental shelf; Coralline algae, wall thickness, inter filament, standard deviation; Coralline algae, wall thickness, intra filament; Coralline algae, wall thickness, intra filament, standard deviation; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Kattegat_OA; Laboratory experiment; Lithothamnion glaciale; Macroalgae; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Plantae; Potentiometric; Potentiometric titration; Rhodophyta; Salinity; Salinity, standard deviation; Single species; Species; Temperate; Temperature, standard deviation; Temperature, water; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 152 data points
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  • 7
    Publication Date: 2011-09-01
    Description: Seamounts can provide conduits for the entry and exit of hydrothermal fluids in ocean basins. However, only a few ridge flank hydrothermal systems that discharge through seamounts have been discovered, all located on relatively young crust. We have retrieved samples from 126 m.y. old Henry Seamount, an extinct volcano near the youngest Canary island of El Hierro, that provide evidence for Holocene low-temperature hydrothermal fluid discharge. This is the first documented finding of such activity at the Canary archipelago. The samples include shells from vesicomyid clams
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
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  • 8
  • 9
    Publication Date: 2012-07-09
    Print ISSN: 1354-1013
    Electronic ISSN: 1365-2486
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Published by Wiley
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  • 10
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