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  • Alkalinity, total; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; CO2 vent; Coast and continental shelf; Distance; East coast of Ischia, Italia; Elements; ES; Event label; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; HAND; IP; Ischia_B1; Ischia_C; Ischia_harbour; Layer description; Mediterranean Sea; Mollusca; Mytilus galloprovincialis; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; OS; Partial pressure of carbon dioxide, respiration, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Percentage; Percentage, standard deviation; pH; pH, standard deviation; Salinity; Sample code/label; Sample type; Sampling by hand; Shell length; Single species; Site; Species; Table; Temperate; Temperature, water; Temperature, water, standard deviation; Thickness; δ13C; δ13C, standard deviation; δ18O, carbonate; δ18O, maximum; δ18O, minimum; δ18O, standard deviation; δ18O, water  (1)
  • calcite crystals  (1)
  • calcite fibre  (1)
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  • 1
    facet.materialart.
    Unbekannt
    Marine bivalve shell geochemistry and ultrastructure from modern low pH environments: environmental effect versus experimental bias (2012)
    PANGAEA
    Details
    Publikationsdatum: 2024-03-15
    Schlagwort(e): Alkalinity, total; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; CO2 vent; Coast and continental shelf; Distance; East coast of Ischia, Italia; Elements; ES; Event label; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; HAND; IP; Ischia_B1; Ischia_C; Ischia_harbour; Layer description; Mediterranean Sea; Mollusca; Mytilus galloprovincialis; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; OS; Partial pressure of carbon dioxide, respiration, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Percentage; Percentage, standard deviation; pH; pH, standard deviation; Salinity; Sample code/label; Sample type; Sampling by hand; Shell length; Single species; Site; Species; Table; Temperate; Temperature, water; Temperature, water, standard deviation; Thickness; δ13C; δ13C, standard deviation; δ18O, carbonate; δ18O, maximum; δ18O, minimum; δ18O, standard deviation; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 10106 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATEN PANGAEA
  • 2
    facet.materialart.
    Unbekannt
    The evolution of thecideide microstructures and textures: traced from Triassic to Holocene (2021)
    Details
    Publikationsdatum: 2021-07-21
    Beschreibung: Thecideide brachiopods are an anomalous group of invertebrates. In this study, we discuss the evolution of thecideide brachiopods from the Triassic to the Holocene and base our results and conclusions on microstructure and texture measurements gained from electron backscatter diffraction (EBSD). In fossil and Recent thecideide shells, we observe the following mineral units: (1) nanometric to small granules; (2) acicles; (3) fibres; (4) polygonal crystals; and (5) large roundish crystals. We trace for thecideide shells the change of mineral unit characteristics such as morphology, size, orientation, arrangement and distribution pattern. Triassic thecideide shells contain extensive sections formed of fibres interspersed with large, roundish crystals. Upper Cretaceous to Pleistocene thecideide hard tissues consist of a matrix of minute to small grains reinforced by acicles and small polygonal crystals. Recent thecideide species form their shell of mineral units that show a wide range of shapes, sizes and arrangements. We find from Late Triassic to Recent a gradual decrease in mineral unit size, regularity of mineral unit morphology and orientation and the degree of calcite co‐orientation. While crystallite co‐orientation is the highest for fibrous microstructures, it is strikingly low for taxa that form their shell out of nanogranular to acicular mineral units. Our results indicate that Upper Jurassic species represent transitional forms between ancient taxa with fibrous shells and Recent forms that construct their shells of acicles and granules. We attribute the observed changes in microstructure and texture to be an adaptation to a different habitat and lifestyle associated with cementation to hard substrates.
    Beschreibung: H2020 Marie Skłodowska‐Curie Actions http://dx.doi.org/10.13039/100010665
    Beschreibung: WOA Institution: LUDWIG‐MAXIMILIANS‐UNIVERSITAET MUNCHEN
    Schlagwort(e): 560 ; Brachiopoda ; calcite crystals ; calcite fibre ; EBSD ; shell microstructure evolution ; thecideides
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    CITATION GEO-LEO
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