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  • 1
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    Unknown
    Late Miocene surface uplift of the southern margin of the Central Anatolian Plateau, Central Taurides, Turkey (2012)
    Geological Society of America (GSA)
    Details
    Publication Date: 2012-01-01
    Description: The timing and pattern of surface uplift of Miocene marine sediments capping the southern margin of the Central Anatolian Plateau in southern Turkey provide a first-order constraint on possible mechanisms of regional uplift. Nannofossil, ostracod, and planktic foraminifera biostratigraphy of the Başyayla section (Mut-Ermenek Basin) within the Mut and Köselerli Formations suggests a Tortonian age for marine sediments unconformably capping basement rocks at ∼2 km elevation. The identification of biozone MMi 12a (7.81–8.35 Ma) from planktic foraminifera in the upper part of the section provides the tightest constraint on the age, which is further limited to 8.35–8.108 Ma as a result of the reverse polarity of the collected samples (chron 4r.1r or 4r.2r). This provides a limiting age for the onset of surface uplift at the margin of one of the world’s major orogenic plateaus, from which an average uplift rate of 0.24–0.25 mm/yr can be calculated.Subhorizontal beds of the uppermost marine sediments exposed throughout the Mut-Ermenek Basin suggest minimal localized deformation, with just minor faulting at the basin margin and broad antiformal deformation across the basin. This implies that the post–8 Ma uplift mechanism must be rooted deep within the crust or in the upper mantle. Published Pn-wave velocity data for the region are compatible with topography compensated by asthenosphere across the southern margin of the plateau, showing a close match to the highest topography when elevations are filtered with a 100-km-wide smoothing window. Uplift along the southern margin of the Central Anatolian Plateau is also reflected by the pattern of Miocene marine sediments capping the margin, which form an asymmetric drape fold over the topography. These observations, together with tomographic evidence for slab steepening and break-off beneath the Eastern Anatolian Plateau, suggest that at least some of the ∼2 km of post–8 Ma uplift of the southern Central Anatolian Plateau margin is compensated by low-density asthenospheric mantle that upwelled following slab break-off.
    Print ISSN: 0016-7606
    Electronic ISSN: 1943-2674
    Topics: Geosciences
    Published by Geological Society of America (GSA)
    Location Call Number Limitation Availability
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    PAPER CURRENT
  • 2
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    Unknown
    Planktonic foraminifera shell size from sediment traps Cape Blanc-3 and Cape Blanc-18 (2021)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Description: We present the first analysis of the relative contribution of variability in shell flux, shell size, and calcification intensity (weight/size) in individual species to the total calcite flux by the planktonic foraminifera community on intra-annual (seasonal) and interannual timescales. We investigated the export flux of planktonic foraminifera in two one-year sediment trap time series from the Northeastern Atlantic Ocean and placed the observed variability of shell flux, shell size, and calcification intensity of each species in the context of the resulting calcite flux. For this issue, we selected 1990-1991 (Cape Blanc-3) and 2007-2008 (Cape Blanc-18) time series from the Cape Blanc upwelling area. Each of these deployments covered an entire year continuously, with an average sampling resolution of ~20 days. Here, we provide the data concerning the species individual size during the studied time series, which were picked from size fractions 〉 150 µm.
    Keywords: Aperture size; Area; Cape Blanc; CB18; CB18_trap; CB3_trap; Center for Marine Environmental Sciences; DATE/TIME; DEPTH, water; Diameter, maximum; Diameter, minimum; Duration, number of days; Elevation of event; Event label; Latitude of event; Longitude of event; M12/1; Maria S. Merian; MARUM; Meteor (1986); MOOR; Mooring; MSM04/4b; northeaster; Northeastern Atlantic; Perimeter; Planktonic foraminifera; Sample code/label; sediment trap; Shell size; Species; time-series; Trap; TRAP
    Type: Dataset
    Format: text/tab-separated-values, 187800 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    X-ray micro computed tomography images of shells of planktic foraminifer Praeorbulina glomerosa circularis, Orbulina suturalis and Velapertina indigena (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Planktic foraminifera (Protista, Rhizaria) are marine zooplankton that precipitate calcareous shells. Their shells are built during their ontogeny, which is characterized by the sequential addition of chambers with various morphology. Here we present computed tomography image stacks of mid-Miocene (Langhian and Serravallian) planktic foraminifera species of Praeorbulina glomerosa circularis, Orbulina suturalis and Velapertina indigena, obtained from sediment and core samples from the Western Carpathians and Pacific Ocean. The X-ray computed tomography scanning was performed with the SkyScan 1172 high-resolution micro-computed tomography device at the Natural Museum in Prague (Czech Republic). The reconstructed 3D models were used to reconstruct the morphological changes accompanied by the species ontogenetic development. In this way we provided new insights into the planktonic foraminifera shell architecture and the three species phylogenetic relatedness.
    Keywords: Center for Marine Environmental Sciences; Computed Tomography; MARUM; middle Miocene; Ocean Drilling Program; ODP; planktic foraminifera; X-ray micro-CT
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Unknown
    X-ray micro computed tomography images of shells of Praeorbulina glomerosa circularis, Orbulina suturalis and Velapertina indigena (planktic foraminifera) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Keywords: 144-872C; Binary Object; Center for Marine Environmental Sciences; Chiuza; Computed Tomography; DRILL; Drilling/drill rig; Image, specimens; Jevicko; Joides Resolution; Leg144; MARUM; middle Miocene; Modrany-1; North Pacific Ocean; planktic foraminifera; X-ray micro-CT
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Shell characteristics of planktic foraminifera Praeorbulina glomerosa circularis, Orbulina suturalis and Velapertina indigena (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Keywords: 144-872C; Area; Center for Marine Environmental Sciences; Chiuza; Computed Tomography; DEPTH, sediment/rock; Distance; DRILL; Drilling/drill rig; Elevation of event; Elongation ratio; Event label; Flatness coefficient; Foraminifera, planktic, chamber height; Foraminifera, planktic, chamber lenght; Foraminifera, planktic, chamber volume; Foraminifera, planktic, chamber width; Foraminifera, planktic, shell height; Foraminifera, planktic, shell lenght; Foraminifera, planktic, shell volume; Foraminifera, planktic, shell width; Generating curve; Jevicko; Joides Resolution; Latitude of event; Leg144; Longitude of event; MARUM; middle Miocene; Modrany-1; North Pacific Ocean; Number of chambers; Ocean Drilling Program; ODP; planktic foraminifera; Shell, number of whorls; Species; Specimen identification; Translation rate; Whorl expansion rate; X-ray micro-CT
    Type: Dataset
    Format: text/tab-separated-values, 1726 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    Planktonic foraminifera counts and shell weight from sediment traps Cape Blanc-3 and Cape Blanc-18 (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We present the first analysis of the relative contribution of variability in shell flux, shell size, and calcification intensity (weight/size) in individual species to the total calcite flux by the planktonic foraminifera community on intra-annual (seasonal) and interannual timescales. We investigated the export flux of planktonic foraminifera in two one-year sediment trap time series from the Northeastern Atlantic Ocean and placed the observed variability of shell flux, shell size, and calcification intensity of each species in the context of the resulting calcite flux. For this issue, we selected 1990-1991 (Cape Blanc-3) and 2007-2008 (Cape Blanc-18) time series from the Cape Blanc upwelling area. Each of these deployments covered an entire year continuously, with an average sampling resolution of ~20 days. Here, we provide the data concerning the species counts and shell weight, picked from size fractions 〉 150 µm, captured during the studied time series. Shell mass error was calculated as the standard deviation of the measurements divided by the square root of number of measurements, divided by the number of the weighed specimens.
    Keywords: Aperture size; Beella digitata; Beella digitata, shell, weight; Beella digitata, shell, weight, standard deviation; Calcium carbonate, flux; Cape Blanc; CB18; CB18_trap; CB3_trap; Center for Marine Environmental Sciences; Date/time end; Date/time start; Dentigloborotalia anfracta; Dentigloborotalia anfracta, shell, weight; Dentigloborotalia anfracta, shell, weight, standard deviation; DEPTH, water; Duration, number of days; Elevation of event; Event label; fluxes; Foraminifera, planktic, flux; Globigerina bulloides; Globigerina bulloides, shell, weight; Globigerina bulloides, shell, weight, standard deviation; Globigerina falconensis; Globigerina falconensis, shell, weight; Globigerina falconensis, shell, weight, standard deviation; Globigerinella calida; Globigerinella calida, shell, weight; Globigerinella calida, shell, weight, standard deviation; Globigerinella siphonifera; Globigerinella siphonifera, shell, weight; Globigerinella siphonifera, shell, weight, standard deviation; Globigerinita glutinata; Globigerinita glutinata, shell, weight; Globigerinita glutinata, shell, weight, standard deviation; Globigerinoides conglobatus; Globigerinoides conglobatus, shell, weight; Globigerinoides elongatus; Globigerinoides elongatus, shell, weight; Globigerinoides elongatus, shell, weight, standard deviation; Globigerinoides ruber albus; Globigerinoides ruber albus, shell, weight; Globigerinoides ruber albus, shell, weight, standard deviation; Globigerinoides ruber ruber; Globigerinoides ruber ruber, shell, weight; Globigerinoides ruber ruber, shell, weight, standard deviation; Globigerinoides tenellus; Globigerinoides tenellus, shell, weight; Globigerinoides tenellus, shell, weight, standard deviation; Globorotalia crassaformis; Globorotalia crassaformis, shell, weight; Globorotalia crassaformis, shell, weight, standard deviation; Globorotalia hirsuta; Globorotalia hirsuta, shell, weight; Globorotalia hirsuta, shell, weight, standard deviation; Globorotalia inflata; Globorotalia inflata, shell, weight; Globorotalia inflata, shell, weight, standard deviation; Globorotalia menardii; Globorotalia menardii, shell, weight; Globorotalia menardii, shell, weight, standard deviation; Globorotalia scitula; Globorotalia scitula, shell, weight; Globorotalia scitula, shell, weight, standard deviation; Globorotalia truncatulinoides; Globorotalia truncatulinoides, shell, weight; Globorotalia truncatulinoides, shell, weight, standard deviation; Globorotalia tumida; Globorotalia tumida, shell, weight; Globorotalia tumida, shell, weight, standard deviation; Globorotalia ungulata; Globorotalia ungulata, shell, weight; Globorotalia ungulata, shell, weight, standard deviation; Hastigerina pelagica; Hastigerina pelagica, shell, weight; Hastigerina pelagica, shell, weight, standard deviation; Latitude of event; Longitude of event; M12/1; Maria S. Merian; MARUM; Meteor (1986); MOOR; Mooring; MSM04/4b; Neogloboquadrina dutertrei; Neogloboquadrina dutertrei, shell, weight; Neogloboquadrina dutertrei, shell, weight, standard deviation; Neogloboquadrina incompta; Neogloboquadrina incompta, shell, weight; Neogloboquadrina incompta, shell, weight, standard deviaton; northwest Africa; Orbulina universa; Orbulina universa, shell, weight; Orbulina universa, shell, weight, standard deviation; Planktonic foraminifera; Pteropoda, flux; Pulleniatina obliquiloculata; Pulleniatina obliquiloculata, shell, weight; Pulleniatina obliquiloculata, shell, weight, standard deviation; Sample code/label; sediment trap; shell weight; Sphaeroidinella dehiscens; Sphaeroidinella dehiscens, shell, weight; Sphaeroidinella dehiscens, shell, weight, standard deviation; Split; Tenuitella fleisheri; Tenuitella fleisheri, shell, weight; Tenuitella fleisheri, shell, weight, standard deviation; time-series; Trap; TRAP; Trilobatus sacculifer; Trilobatus sacculifer, shell, weight; Trilobatus sacculifer, shell, weight, standard deviation; Turborotalita humilis; Turborotalita humilis, shell, weight; Turborotalita humilis, shell, weight, standard deviation; Turborotalita quinqueloba; Turborotalita quinqueloba, shell, weight; Turborotalita quinqueloba, shell, weight, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 2757 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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