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  • 1
    Publication Date: 2023-10-05
    Keywords: Beckman Coulter Laser diffraction particle size analyzer LS 13 320; DEPTH, sediment/rock; Elevation of event; Event label; INOPEX; Latitude of event; Longitude of event; MUC; MultiCorer; North Pacific Ocean; Size fraction 0.397-0.370 µm, 11.3-11.4 phi; Size fraction 0.45-0.41 µm, 11.1-11.3 phi; Size fraction 0.488-0.456 µm, 11.0-11.1 phi; Size fraction 0.523-0.488 µm, 10.9-11.0 phi; Size fraction 0.6-0.54 µm, 10.7-10.9 phi; Size fraction 0.644-0.601 µm, 10.6-10.7 phi; Size fraction 0.72-0.66 µm, 10.4-10.6 phi; Size fraction 0.793-0.740 µm, 10.3-10.4 phi; Size fraction 0.850-0.793 µm, 10.2-10.3 phi; Size fraction 0.95-0.87 µm, 10.0-10.2 phi; Size fraction 1.047-0.977 µm, 9.9-10.0 phi; Size fraction 1.122-1.047 µm, 9.8-9.9 phi; Size fraction 1.26-1.15 µm, 9.6-9.8 phi; Size fraction 1.381-1.289 µm, 9.5-9.6 phi; Size fraction 1.480-1.381 µm, 9.4-9.5 phi; Size fraction 1.67-1.52 µm, 9.2-9.4 phi; Size fraction 1.822-1.700 µm, 9.1-9.2 phi; Size fraction 1.953-1.822 µm, 9.0-9.1 phi; Size fraction 10.78-9.82 µm, 6.5-6.7 phi; Size fraction 101.532-94.732 µm, 3.3-3.4 phi; Size fraction 1041.05-948.34 µm, (-0.1)-0.1 phi; Size fraction 108.819-101.532 µm, 3.2-3.3 phi; Size fraction 11.842-11.049 µm, 6.4-6.5 phi; Size fraction 1148.698-1071.773 µm, (-0.2) to (-0.1) phi; Size fraction 12.691-11.842 µm, 6.3-6.4 phi; Size fraction 121.84-110.99 µm, 3.0-3.2 phi; Size fraction 1231.144-1148.698 µm, (-0.3) to (-0.2) phi; Size fraction 133.972-125.000 µm, 2.9-3.0 phi; Size fraction 1377.2-1254.55 µm, (-0.5) to (-0.3) phi; Size fraction 14.26-12.99 µm, 6.1-6.3 phi; Size fraction 143.587-133.972 µm, 2.8-2.9 phi; Size fraction 15.625-14.579 µm, 6.0-6.1 phi; Size fraction 1515.717-1414.214 µm, (-0.6) to (-0.5) phi; Size fraction 16.746-15.625 µm, 5.9-6.0 phi; Size fraction 161.18-146.82 µm, 2.6-2.8 phi; Size fraction 1624.505-1515.717 µm, (-0.7) to (-0.6) phi; Size fraction 176.777-164.938 µm, 2.5-2.6 phi; Size fraction 18.86-17.18 µm, 5.7-5.9 phi; Size fraction 1821.89-1659.64 µm, (-0.9) to (-0.7) phi; Size fraction 189.465-176.777 µm, 2.4-2.5 phi; Size fraction 2.21-2.01 µm, 8.8-9.0 phi; Size fraction 2.405-2.244 µm, 8.7-8.8 phi; Size fraction 2.577-2.405 µm, 8.6-8.7 phi; Size fraction 2.92-2.66 µm, 8.4-8.6 phi; Size fraction 20.617-19.237 µm, 5.6-5.7 phi; Size fraction 2000.000-1866.066 µm, (-1.0) to (-0.9) phi; Size fraction 213.22-194.23 µm, 2.2-2.4 phi; Size fraction 22.097-20.617 µm, 5.5-5.6 phi; Size fraction 233.258-217.638 µm, 2.1-2.2 phi; Size fraction 24.95-22.73 µm, 5.3-5.5 phi; Size fraction 250.000-233.258 µm, 2.0-2.1 phi; Size fraction 27.205-25.383 µm, 5.2-5.3 phi; Size fraction 282.07-256.95 µm, 1.8-2.0 phi; Size fraction 29.157-27.205 µm, 5.1-5.2 phi; Size fraction 3.173-2.960 µm, 8.3-8.4 phi; Size fraction 3.401-3.173 µm, 8.2-8.3 phi; Size fraction 3.86-3.52 µm, 8.0-8.2 phi; Size fraction 307.786-287.175 µm, 1.7-1.8 phi; Size fraction 329.877-307.786 µm, 1.6-1.7 phi; Size fraction 33.01-30.07 µm, 4.9-5.1 phi; Size fraction 35.897-33.493 µm, 4.8-4.9 phi; Size fraction 373.15-339.92 µm, 1.4-1.6 phi; Size fraction 38.473-35.897 µm, 4.7-4.8 phi; Size fraction 4.187-3.906 µm, 7.9-8.0 phi; Size fraction 4.66-4.24 µm, 7.7-7.9 phi; Size fraction 406.126-378.929 µm, 1.3-1.4 phi; Size fraction 43.67-39.78 µm, 4.5-4.7 phi; Size fraction 435.275-406.126 µm, 1.2-1.3 phi; Size fraction 47.366-44.194 µm, 4.4-4.5 phi; Size fraction 493.63-449.67 µm, 1.0-1.2 phi; Size fraction 5.154-4.809 µm, 7.6-7.7 phi; Size fraction 5.524-5.154 µm, 7.5-7.6 phi; Size fraction 52.63-47.94 µm, 4.2-4.4 phi; Size fraction 535.887-500.000 µm, 0.9-1.0 phi; Size fraction 58.315-54.409 µm, 4.1-4.2 phi; Size fraction 594.87-541.89 µm, 0.7-0.9 phi; Size fraction 6.16-5.61 µm, 7.3-7.5 phi; Size fraction 6.801-6.346 µm, 7.2-7.3 phi; Size fraction 62.500-58.315 µm, 4.0-4.1 phi; Size fraction 659.754-615.572 µm, 0.6-0.7 phi; Size fraction 69.62-63.42 µm, 3.8-4.0 phi; Size fraction 7.289-6.801 µm, 7.1-7.2 phi; Size fraction 707.107-659.754 µm, 0.5-0.6 phi; Size fraction 76.947-71.794 µm, 3.7-3.8 phi; Size fraction 786.95-716.87 µm, 0.3-0.5 phi; Size fraction 8.15-7.42 µm, 6.9-7.1 phi; Size fraction 8.974-8.373 µm, 6.8-6.9 phi; Size fraction 82.469-76.947 µm, 3.6-3.7 phi; Size fraction 870.551-812.252 µm, 0.2-0.3 phi; Size fraction 9.618-8.974 µm, 6.7-6.8 phi; Size fraction 92.1-83.9 µm, 3.4-3.6 phi; Size fraction 933.033-870.551 µm, 0.1-0.2 phi; SO202/1; SO202/1_02-4; SO202/1_03-4; SO202/1_04-3; SO202/1_05-3; SO202/1_06-2; SO202/1_08-1; SO202/1_09-2; SO202/1_23-4; SO202/1_24-2; SO202/1_25-1; SO202/1_27-1; SO202/1_28-1; SO202/1_29-5; SO202/1_31-5; SO202/1_32-5; SO202/1_33-5; SO202/1_34-4; SO202/1_36-6; SO202/1_38-1; SO202/1_39-2; SO202/1_41-3; SO202/1_42-3; SO202/1_45-2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 2116 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-10-05
    Keywords: Alkaline extraction and molbydate blue spectrophotometry; Bering Sea; Calcium carbonate; Calcium carbonate, standard deviation; Calculated; Cerium; Coulometer CM5012 CO2; DEPTH, sediment/rock; Dysprosium; Elevation of event; Erbium; Europium; Event label; Gadolinium; Helium-4, terrestrial; Helium-4, terrestrial, standard deviation; Holmium; ICP-MS, VG Elemental Axiom; ICP-MS, VG-Plasma-Quad ExCell; INOPEX; Lanthanum; Latitude of event; Longitude of event; Lutetium; MUC; MultiCorer; Neodymium; North Pacific Ocean; Opal, biogenic silica; Opal, biogenic silica, standard deviation; Praseodymium; Samarium; SO202/1; SO202/1_01-3; SO202/1_02-4; SO202/1_03-4; SO202/1_04-3; SO202/1_05-3; SO202/1_06-2; SO202/1_08-1; SO202/1_09-2; SO202/1_10-2; SO202/1_11-1; SO202/1_12-2; SO202/1_13-4; SO202/1_14-5; SO202/1_15-4; SO202/1_18-1; SO202/1_19-5; SO202/1_21-2; SO202/1_22-1; SO202/1_23-4; SO202/1_24-2; SO202/1_25-1; SO202/1_26-1; SO202/1_27-1; SO202/1_28-1; SO202/1_29-5; SO202/1_31-5; SO202/1_32-5; SO202/1_33-5; SO202/1_34-4; SO202/1_36-6; SO202/1_37-1; SO202/1_38-1; SO202/1_39-2; SO202/1_40-2; SO202/1_41-3; SO202/1_42-3; SO202/1_45-2; Sonne; Terbium; Thorium-230; Thorium-230, flux normalized; Thorium-230, flux normalized, standard deviation; Thorium-230, standard deviation; Thorium-230 excess, decay-corrected; Thorium-230 excess, decay-corrected, standard deviation; Thorium-232; Thorium-232, standard deviation; Thulium; Uranium-238; Uranium-238, standard deviation; Ytterbium
    Type: Dataset
    Format: text/tab-separated-values, 1110 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2023-10-05
    Keywords: DEPTH, sediment/rock; Dust, flux; Dust, flux, standard deviation; Dust contribution to lithogenic fraction; Dust contribution to lithogenic fraction, standard deviation; Elevation of event; Event label; Fine endmember contribution to lithogenic fraction; Fine endmember-derived, flux; Fine endmember-derived, flux, standard deviation; INOPEX; Latitude of event; Longitude of event; MUC; MultiCorer; North Pacific Ocean; SO202/1; SO202/1_01-3; SO202/1_02-4; SO202/1_03-4; SO202/1_04-3; SO202/1_05-3; SO202/1_06-2; SO202/1_08-1; SO202/1_09-2; SO202/1_23-4; SO202/1_24-2; SO202/1_25-1; SO202/1_27-1; SO202/1_28-1; SO202/1_29-5; SO202/1_31-5; SO202/1_32-5; SO202/1_33-5; SO202/1_34-4; SO202/1_36-6; SO202/1_37-1; SO202/1_38-1; SO202/1_39-2; SO202/1_40-2; SO202/1_41-3; SO202/1_42-3; SO202/1_45-2; Sonne
    Type: Dataset
    Format: text/tab-separated-values, 433 data points
    Location Call Number Limitation Availability
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  • 4
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    PANGAEA
    In:  Supplement to: Serno, Sascha; Winckler, Gisela; Anderson, Robert F; Hayes, Christopher T; McGee, David; Machalett, Björn; Ren, Haojia Abby; Straub, Susanne M; Gersonde, Rainer; Haug, Gerald H (2014): Eolian dust input to the Subarctic North Pacific. Earth and Planetary Science Letters, 387, 252-263, https://doi.org/10.1016/j.epsl.2013.11.008
    Publication Date: 2023-11-27
    Description: Eolian dust is a significant source of iron and other nutrients that are essential for the health of marine ecosystems and potentially a controlling factor of the high nutrient-low chlorophyll status of the Subarctic North Pacific. We map the spatial distribution of dust input using three different geochemical tracers of eolian dust, 4He, 232Th and rare earth elements, in combination with grain size distribution data, from a set of core-top sediments covering the entire Subarctic North Pacific. Using the suite of geochemical proxies to fingerprint different lithogenic components, we deconvolve eolian dust input from other lithogenic inputs such as volcanic ash, ice-rafted debris, riverine and hemipelagic input. While the open ocean sites far away from the volcanic arcs are dominantly composed of pure eolian dust, lithogenic components other than eolian dust play a more crucial role along the arcs. In sites dominated by dust, eolian dust input appears to be characterized by a nearly uniform grain size mode at ~4 µm. Applying the 230Th-normalization technique, our proxies yield a consistent pattern of uniform dust fluxes of 1-2 g/m**2/yr across the Subarctic North Pacific. Elevated eolian dust fluxes of 2-4 g/m**2/yr characterize the westernmost region off Japan and the southern Kurile Islands south of 45° N and west of 165° E along the main pathway of the westerly winds. The core-top based dust flux reconstruction is consistent with recent estimates based on dissolved thorium isotope concentrations in seawater from the Subarctic North Pacific. The dust flux pattern compares well with state-of-the-art dust model predictions in the western and central Subarctic North Pacific, but we find that dust fluxes are higher than modeled fluxes by 0.5-1 g/m**2/yr in the northwest, northeast and eastern Subarctic North Pacific. Our results provide an important benchmark for biogeochemical models and a robust approach for downcore studies testing dust-induced iron fertilization of past changes in biological productivity in the Subarctic North Pacific.
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2023-11-28
    Keywords: Alkaline extraction and molbydate blue spectrophotometry; Bering Sea; Calcium carbonate; Calcium carbonate, standard deviation; Calculated; Cerium; Coulometer CM5012 CO2; DEPTH, sediment/rock; Dysprosium; Elevation of event; Erbium; Europium; Event label; Gadolinium; Helium-3/Helium-4; Helium-3/Helium-4, standard deviation; Helium-4; Helium-4, standard deviation; Helium-4, terrestrial; Helium-4, terrestrial, standard deviation; Holmium; ICP-MS, VG Elemental Axiom; ICP-MS, VG-Plasma-Quad ExCell; INOPEX; Lanthanum; Latitude of event; Longitude of event; Lutetium; MUC; MultiCorer; Neodymium; Noble gas mass spectrometry; North Pacific Ocean; Opal, biogenic silica; Opal, biogenic silica, standard deviation; Praseodymium; Salinity; Salt content; Samarium; Sample mass; SO202/1; SO202/1_01-3; SO202/1_02-4; SO202/1_03-4; SO202/1_04-3; SO202/1_05-3; SO202/1_06-2; SO202/1_08-1; SO202/1_09-2; SO202/1_10-2; SO202/1_11-1; SO202/1_12-2; SO202/1_13-4; SO202/1_14-5; SO202/1_15-4; SO202/1_18-1; SO202/1_19-5; SO202/1_21-2; SO202/1_22-1; SO202/1_23-4; SO202/1_24-2; SO202/1_25-1; SO202/1_26-1; SO202/1_27-1; SO202/1_28-1; SO202/1_29-5; SO202/1_31-5; SO202/1_32-5; SO202/1_33-5; SO202/1_34-4; SO202/1_36-6; SO202/1_37-1; SO202/1_38-1; SO202/1_39-2; SO202/1_40-2; SO202/1_41-3; SO202/1_42-3; SO202/1_45-2; Sonne; Terbium; Thorium-230; Thorium-230, standard deviation; Thorium-232; Thorium-232, standard deviation; Thulium; Uranium-238; Uranium-238, standard deviation; Water loss per dry weight; Ytterbium
    Type: Dataset
    Format: text/tab-separated-values, 1293 data points
    Location Call Number Limitation Availability
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  • 6
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    Unknown
    ELSEVIER SCIENCE BV
    In:  EPIC3Earth and Planetary Science Letters, ELSEVIER SCIENCE BV, 387, pp. 252-263, ISSN: 0012-821X
    Publication Date: 2019-07-17
    Description: Eolian dust is a significant source of iron and other nutrients that are essential for the health of marine ecosystems and potentially a controlling factor of the high nutrient-low chlorophyll status of the Subarctic North Pacific. We map the spatial distribution of dust input using three different geochemical tracers of eolian dust, 4He, 232Th and rare earth elements, in combination with grain size distribution data, from a set of core-top sediments covering the entire Subarctic North Pacific. Using the suite of geochemical proxies to fingerprint different lithogenic components, we deconvolve eolian dust input from other lithogenic inputs such as volcanic ash, ice-rafted debris, riverine and hemipelagic input. While the open ocean sites far away from the volcanic arcs are dominantly composed of pure eolian dust, lithogenic components other than eolian dust play a more crucial role along the arcs. In sites dominated by dust, eolian dust input appears to be characterized by a nearly uniform grain size mode at ∼4 μm. Applying the 230Th-normalization technique, our proxies yield a consistent pattern of uniform dust fluxes of 1–2 g/m2/yr across the Subarctic North Pacific. Elevated eolian dust fluxes of 2–4 g/m2/yr characterize the westernmost region off Japan and the southern Kurile Islands south of 45° N and west of 165° E along the main pathway of the westerly winds. The core-top based dust flux reconstruction is consistent with recent estimates based on dissolved thorium isotope concentrations in seawater from the Subarctic North Pacific. The dust flux pattern compares well with state-of-the-art dust model predictions in the western and central Subarctic North Pacific, but we find that dust fluxes are higher than modeled fluxes by 0.5–1 g/m2/yr in the northwest, northeast and eastern Subarctic North Pacific. Our results provide an important benchmark for biogeochemical models and a robust approach for downcore studies testing dust-induced iron fertilization of past changes in biological productivity in the Subarctic North Pacific.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 7
    Publication Date: 2022-08-05
    Description: Den Schwerpunkt dieser Arbeit bilden die Ergebnisse sedimentologischer, palynologischer, malakologischer und chronometrischer Untersuchungen an Sedimenten aus dem Zentralbereich des Paläoseebeckens Neumark-Nord 2. Die interdisziplinären Untersuchungen an dem 11 m mächtigen Hauptprofil A und benachbarten Profilen zeigen übereinstimmend, dass die limnische Sedimentation vom Ende des Saale-Komplexes über die Eem-Warmzeit bis in die Weichsel-Kaltzeit erfolgte. Das Profil lässt Seespiegelschwankungen mit einer generellen Tendenz der Verflachung und Verlandung sowie wechselnde Sedimentationsraten erkennen. Durch die palynologischen Untersuchungen sind außerdem mit Erosion und Sedimentumlagerungen verbundene Hiaten festgestellt worden. Eine von Laurat et al. (2006) und Mania et al. (2008, 2010) im Profil ausgewiesene zusätzliche Warmzeit, die durch eine Kaltphase von der Eem-Warmzeit separiert und zudem jünger als das Interglazial von NN1 sein soll, existiert nicht. Vor allem die palynostratigraphische, aber auch die malakologische Koinzidenz der Becken NN1 und NN2 belegt die Gleichaltrigkeit der Ablagerungen. Somit ist in Neumark-Nord zwischen der Saale-Grundmoräne der Zeitz-Phase und den periglaziären Bildungen der Weichsel-Kaltzeit nur eine Warmzeit nachweisbar, das Eem. Dies wird durch neue geochronologische Daten eindeutig verifiziert. Daher können die zuletzt von Mania et al. (2010) dokumentierten Lagerungsbeziehungen, nach denen die Beckenfolge von NN2 über der von NN1 liegen soll, nicht bestätigt werden. In Neumark-Nord werden die klimatischen Besonderheiten des Mitteldeutschen Trockengebietes während der Eem-Warmzeit deutlich. Insofern bietet der Vergleich der Eem-Vorkommen von Neumark-Nord, Gröbern und Grabschütz ein Lehrbeispiel für die standortspezifische Variabilität benachbarter synchroner Warmzeitprofile.
    Description: research
    Keywords: ddc:551.7
    Language: German
    Type: doc-type:article , publishedVersion
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