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  • 2000-2004  (43)
Document type
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary (2001)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 413 (2001), S. 719-723 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO2 concentrations were twice as high as today, the Antarctic ice sheets may have been unstable. Oxygen isotope records from deep-sea ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35099534
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Carbon and oxygen isotopic compositions of Cibicidoides spp. and fine fraction separates (〈10 µm) from ODP Holes 113-689B, 119-738B, and 120-748B (2003)
    PANGAEA
    In:  Supplement to: Bohaty, Steven M; Zachos, James C (2003): Significant Southern Ocean warming event in the late middle Eocene. Geology, 31(11), 1017-1020, https://doi.org/10.1130/G19800.1
    Details
    Publication Date: 2024-01-09
    Description: A prominent middle Eocene warming event is identified in Southern Ocean deep-sea cores, indicating that long-term cooling through the middle and late Eocene was not monotonic. At sites on Maud Rise and the Kerguelen Plateau, a distinct negative shift in d18O values (~1.0 per mil) is observed ca. 41.5 Ma. This excursion is interpreted as primarily a temperature signal, with a transient warming of 4°C over 600 k.y. affecting both surface and middle-bathyal deep waters in the Indian-Atlantic region of the Southern Ocean. This isotopic event is designated as the middle Eocene climatic optimum, and is interpreted to represent a significant climatic reversal in the midst of middle to late Eocene deep-sea cooling. The lack of a significant negative carbon isotope excursion, as observed during the Paleocene-Eocene thermal maximum, and the gradual rate of high-latitude warming suggest that this event was not triggered by methane hydrate dissociation. Rather, a transient rise in pCO2 levels is suspected, possibly as a result of metamorphic decarbonation in the Himalayan orogen or increased ridge/arc volcanism during the late middle Eocene.
    Keywords: 113-689B; 119-738B; 120-748B; DRILL; Drilling/drill rig; Indian Ocean; Joides Resolution; Leg113; Leg119; Leg120; Ocean Drilling Program; ODP; South Atlantic Ocean; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Oligocene and lowermost Miocene diatom stratigraphy and datums of ODP Site 199-1220 sediments (2004)
    PANGAEA
    In:  Supplement to: Barron, John A; Fourtanier, Elisabeth; Bohaty, Steven M (2004): Oligocene and earliest Miocene diatom biostratigraphy of ODP Leg 199 Site 1220, equatorial Pacific. In: Wilson, PA; Lyle, M; Firth, JV (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 199, 1-25, https://doi.org/10.2973/odp.proc.sr.199.204.2004
    Details
    Publication Date: 2024-01-09
    Description: Completion of studies on material collected during Ocean Drilling Program Leg 199 at Site 1220 in the equatorial Pacific allows calibration of the ranges of 〉35 stratigraphically important diatoms to paleomagnetic stratigraphy for the Oligocene and earliest Miocene (~33.5-21.5 Ma). The taxonomy of these taxa is reviewed, and age estimates of their first and last occurrences are compiled. The diatom zonation for the Oligocene and earliest Miocene of the equatorial Pacific is revised and correlated with paleomagnetic stratigraphy. This biostratigraphy is likely to be applicable throughout the low-latitude regions of the world's oceans.
    Keywords: 199-1220; COMPCORE; Composite Core; Joides Resolution; Leg199; North Pacific Ocean; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 4
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    Quantitative silicoflagellate data from the southern Indic Ocean from ODP Holes 188-1165B, 120-748B and 120-751A (2003)
    PANGAEA
    In:  Supplement to: Whitehead, Jason M; Bohaty, Steven M (2003): Pliocene summer sea surface temperature reconstruction using silicoflagellates from Southern Ocean ODP Site 1165. Paleoceanography, 18(3), 1075, https://doi.org/10.1029/2002PA000829
    Details
    Publication Date: 2024-01-09
    Description: In the modern marine environment the silicoflagellate genus Dictyocha is rare, or absent, south of the Antarctic polar front (APF); the genus Distephanus, in contrast, is dominant. In sediments recovered from ODP Site 1165, 1600 km south of the front, however, three intervals where Dictyocha is abundant are interpreted to represent Pliocene warm events. Comparison of our data with Ciesielski and Weaver's [1974] modern core top silicoflagellate relationship with sea surface temperature (SST) indicates that at Site 1165 mean annual SST was approximately 5°C at 3.7 Ma (event I), and approximately 4°C at 4.3-4.4 Ma (event II) and 4.55-4.8 Ma (event III). Event I represents a 5.5°C warming, and events II and III represents a 4.5°C warming relative to modern mean annual SST. Dictyocha is absent from other Site 1165 Pliocene intervals, which suggests that cooler SST (〈2°C) prevailed. The warm events detected at Site 1165 may represent times when North Atlantic Deep Water production and ocean heat transport into the Southern Ocean exerted maximum influence.
    Keywords: 120-748B; 120-751A; 188-1165B; DRILL; Drilling/drill rig; Indian Ocean; Joides Resolution; Leg120; Leg188; Ocean Drilling Program; ODP; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 5
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    (Table T3) Pliocene-Pleistocene diatom zones and datums in ODP Hole 183-1138A (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1138A; AGE; Age, maximum/old; Age, minimum/young; Age model, Berggren et al (1995) BKSA95; Ageprofile Datum Description; DEPTH, sediment/rock; Diatom zone; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epoch; Indian Ocean; Joides Resolution; Leg183; Ocean Drilling Program; ODP; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 392 data points
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    DATA PANGAEA
  • 6
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    (Table T2) Silicoflagellate abundance in ODP Hole 183-1140A sediments (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1140A; Bachmannocena apiculata; Bachmannocena circulus; Bachmannocena diodon; Bachmannocena elliptica; Corbisema hastata; Corbisema triacantha; Counting, silicoflagellates; DEPTH, sediment/rock; Dictyocha aculeata; Dictyocha extensa; Dictyocha fibula fibula; Distephanus antarcticus; Distephanus boliviensis; Distephanus crux; Distephanus depressus; Distephanus longispinus; Distephanus raupii; Distephanus speculum hemisphaericus; Distephanus speculum pentagonus; Distephanus speculum speculum; Distephanus speculum speculum cylindrus; Distephanus speculum speculum notabilis; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epoch; Indian Ocean; Joides Resolution; Leg183; Naviculopsis biapiculata; Naviculopsis eobiapiculata; Naviculopsis lata; Ocean Drilling Program; ODP; Proportion; Sample code/label; Silicoflagellates; Silicoflagellates, aberrant; Silicoflagellate zone
    Type: Dataset
    Format: text/tab-separated-values, 750 data points
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    DATA PANGAEA
  • 7
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    (Table T2) Miocene diatom zones and datums in ODP Hole 183-1138A (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1138A; AGE; Age, maximum/old; Age, minimum/young; Age model, Berggren et al (1995) BKSA95; Ageprofile Datum Description; DEPTH, sediment/rock; Diatom zone; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epoch; Indian Ocean; Joides Resolution; Leg183; Ocean Drilling Program; ODP; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 284 data points
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    DATA PANGAEA
  • 8
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    (Table T4) Argon 40 - Argon 39 incremental heating ages from Neogene ash layers in ODP Hole 183-1138A (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1138A; Age, dated; Age, dated material; Age, dated standard deviation; Argon-39; Argon-40/Argon-36; Argon-40/Argon-36, standard deviation; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Leg183; Mass spectrometer MAP215-50; Ocean Drilling Program; ODP; Parameter; Sample code/label; Sample comment; Sample ID
    Type: Dataset
    Format: text/tab-separated-values, 85 data points
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    DATA PANGAEA
  • 9
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    (Table T5) Neogene biostratigraphy datums and ages in ODP Hole 183-1138A (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1138A; Age, maximum/old; Age, minimum/young; Age model; Age model, Berggren et al (1995) BKSA95; Ageprofile Datum Description; Ageprofile Datum Type; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Indian Ocean; Joides Resolution; Leg183; Ocean Drilling Program; ODP; Reference/source; Sample comment
    Type: Dataset
    Format: text/tab-separated-values, 296 data points
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    DATA PANGAEA
  • 10
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    (Table T1) Silicoflagellate abundance in ODP Hole 183-1138A sediments (2003)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 183-1138A; Bachmannocena apiculata; Bachmannocena circulus; Bachmannocena diodon; Bachmannocena elliptica; Counting, silicoflagellates; DEPTH, sediment/rock; Dictyocha calida; Dictyocha extensa; Dictyocha fibula fibula; Dictyocha messanensis; Dictyocha perlaevis; Dictyocha pumila; Dictyocha varia; Distephanus boliviensis; Distephanus crux; Distephanus pulchra; Distephanus raupii; Distephanus speculum hemisphaericus; Distephanus speculum pentagonus; Distephanus speculum speculum; Distephanus speculum speculum notabilis; Distephanus speculum speculum pseudofibula; Distephanus speculum speculum pseudopentagonus; Distephanus speculum speculum varians; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epoch; Indian Ocean; Joides Resolution; Leg183; Naviculopsis eobiapiculata; Naviculopsis lata; Ocean Drilling Program; ODP; Proportion; Sample code/label; Silicoflagellates; Silicoflagellates, aberrant; Silicoflagellate zone
    Type: Dataset
    Format: text/tab-separated-values, 1295 data points
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    DATA PANGAEA
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