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  • 1
    Electronic Resource
    Electronic Resource
    Regional climate shifts caused by gradual global cooling in the Pliocene epoch (2004)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 429 (2004), S. 263-267 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Earth's climate has undergone a global transition over the past four million years, from warm conditions with global surface temperatures about 3 °C warmer than today, smaller ice sheets and higher sea levels to the current cooler conditions. Tectonic changes and their influence ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature02567
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Raw and normalized X-ray fluorescence (XRF) scannings of IODP Expedition 321, Site U1338 (2012)
    PANGAEA
    In:  Supplement to: Lyle, Mitchell W; Olivarez Lyle, Annette; Gorgas, T J; Holbourn, Ann E; Westerhold, Thomas; Hathorne, Ed C; Kimoto, Katsunori; Yamamoto, Shinya (2012): Data report: raw and normalized elemental data along the Site U1338 splice from X-ray flourescence scanning. In: Pälike, H; Lyle, M; Nishi, H; Raffi, I; Gamage, K; Klaus, A; and the Expedition 320/321 Scientists, Proc. IODP, 320/321: Tokyo (Integrated Ocean Drilling Program Management International, Inc.)., 320/321, https://doi.org/10.2204/iodp.proc.320321.203.2012
    Details
    Publication Date: 2023-04-25
    Description: We used X-ray fluorescence (XRF) scanning on Site U1338 sediments from Integrated Ocean Drilling Program Expedition 321 to measure sediment geochemical compositions at 2.5 cm resolution for the 450 m of the Site U1338 spliced sediment column. This spatial resolution is equivalent to ~2 k.y. age sampling in the 0-5 Ma section and ~1 k.y. resolution from 5 to 17 Ma. Here we report the data and describe data acquisition conditions to measure Al, Si, K, Ca, Ti, Fe, Mn, and Ba in the solid phase. We also describe a method to convert the data from volume-based raw XRF scan data to a normalized mass measurement ready for calibration by other geochemical methods. Both the raw and normalized data are reported along the Site U1338 splice.
    Keywords: 321-U1338; COMPCORE; Composite Core; Exp321; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Pacific Equatorial Age Transect II / Juan de Fuca
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Biogenic sedimentation of DSDP Site 85-574
    PANGAEA
    In:  Supplement to: Piela, Christine; Lyle, Mitchell W; Marcantonio, Franco; Baldauf, Jack G; Olivarez Lyle, Annette (2012): Biogenic sedimentation in the equatorial Pacific: Carbon cycling and paleoproduction, 12–24 Ma. Paleoceanography, 27(2), PA2204, https://doi.org/10.1029/2011PA002236
    Details
    Publication Date: 2023-06-27
    Description: The equatorial Pacific is an important part of the global carbon cycle and has been affected by climate change through the Cenozoic (65 Ma to present). We present a Miocene (12-24 Ma) biogenic sediment record from Deep Sea Drilling Project (DSDP) Site 574 and show that a CaCO3 minimum at 17 Ma was caused by elevated CaCO3 dissolution. When Pacific Plate motion carried Site 574 under the equator at about 16.2 Ma, there is a minor increase in biogenic deposition associated with passing under the equatorial upwelling zone. The burial rates of the primary productivity proxies biogenic silica (bio-SiO2) and biogenic barium (bio-Ba) increase, but biogenic CaCO3 decreases. The carbonate minimum is at ~17 Ma coincident with the beginning of the Miocene climate optimum; the transient lasts from 18 to 15 Ma. Bio-SiO2 and bio-Ba are positively correlated and increase as the equator was approached. Corg is poorly preserved, and is strongly affected by changing carbonate burial. Terrestrial 232Th deposition, a proxy for aeolian dust, increases only after the Site 574 equator crossing. Since surface production of bio-SiO2, bio-Ba, and CaCO3 correlate in the modern equatorial Pacific, the decreased CaCO3 burial rate during the Site 574 equator crossing is driven by elevated CaCO3 dissolution, representing elevated ocean carbon storage and elevated atmospheric CO2. The length of the 17 Ma CaCO3 dissolution transient requires interaction with a 'slow' part of the carbon cycle, perhaps elevated mantle degassing associated with the early stages of Columbia River Basalt emplacement.
    Keywords: 85-574_Site; COMPCORE; Composite Core; Deep Sea Drilling Project; DSDP; Glomar Challenger; Leg85; North Pacific/TROUGH
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    (Table T1) Raw XRF scan peak area data for all scans on Site U1338, unspliced (2012)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: 321-U1338; Aluminium (peak area); Barium (peak area); Calcium (peak area); Chlorine (peak area); COMPCORE; Composite Core; Date; Depth, composite; DEPTH, sediment/rock; Exp321; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Iron (peak area); Joides Resolution; Manganese (peak area); Pacific Equatorial Age Transect II / Juan de Fuca; Potassium (peak area); Sample code/label; Silicon (peak area); Sulfur (peak area); Titanium (peak area); X-ray fluorescence core scanner (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 282763 data points
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    DATA PANGAEA
  • 5
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    (Table T2) Normalized median-scaled (NMS) data for all scans along splice for Site U1338 (2012)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Keywords: 321-U1338; Aluminium (peak area); Aluminium median-scale; Aluminium oxide, normalized median-scaled; Barium (peak area); Barium median-scale; Barium sulfate, normalized median-scaled; Calcium (peak area); Calcium carbonate, normalized median-scaled; Calcium median-scale; Chlorine (peak area); COMPCORE; Composite Core; Date; Depth, composite; DEPTH, sediment/rock; Exp321; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Iron (peak area); Iron median-scale; Iron oxide, normalized median-scaled; Joides Resolution; Manganese (peak area); Manganese median-scale; Manganese oxide, normalized median-scaled; Pacific Equatorial Age Transect II / Juan de Fuca; Potassium (peak area); Potassium median-scale; Potassium oxide, normalized median-scaled; Sample code/label; Silica, normalized median-scaled; Silicon (peak area); Silicon median-scale; Sulfur (peak area); Sum; Titanium (peak area); Titanium dioxide, normalized median-scaled; Titanium median-scale; X-ray fluorescence core scanner (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 511440 data points
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    DATA PANGAEA
  • 6
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    (Table 2) Average accumulation rates for DSDP Site 85-574
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 85-574_Site; Accumulation rate, barium; Accumulation rate, calcium carbonate; Accumulation rate, mass; Accumulation rate, opal; Accumulation rate, thorium; Accumulation rate, total organic carbon; Accumulation rate, uranium; AGE; Age, maximum/old; Age, minimum/young; Barium; Calcium carbonate; Carbon, organic, total; COMPCORE; Composite Core; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg85; North Pacific/TROUGH; Opal, biogenic silica; Paleolatitude; Paleolongitude; Sample code/label; Sample code/label 2; Sedimentation rate; Thorium; Uranium
    Type: Dataset
    Format: text/tab-separated-values, 522 data points
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    DATA PANGAEA
  • 7
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    (Table 1) Chronostratigraphy for DSDP Site 85-574
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 85-574_Site; AGE; Age model; Age model, optional; Ageprofile Datum Description; COMPCORE; Composite Core; Deep Sea Drilling Project; DEPTH, sediment/rock; DSDP; Glomar Challenger; Group; Leg85; North Pacific/TROUGH
    Type: Dataset
    Format: text/tab-separated-values, 417 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    (Table T1) Carbon composition and biogenic silica of ODP Hole 199-1221C sediments (2006)
    PANGAEA
    In:  Supplement to: Murphy, Brandi; Lyle, Mitchell W; Olivarez Lyle, Annette (2006): Biogenic burial across the Paleocene/Eocene boundary: Ocean Drilling Program Leg 199 Site 1221. In: Wilson, PA; Lyle, M; Firth, JV (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 199, 1-12, https://doi.org/10.2973/odp.proc.sr.199.215.2006
    Details
    Publication Date: 2024-01-09
    Description: The Paleocene/Eocene (P/E) boundary, at ~55 Ma, is characterized by a transient warm period lasting 10,000 yr. This interval is globally characterized by significant chemical and biological signals. Ocean Drilling Program Core 199-1221C-11X captured the P/E boundary section at a depth of 154 meters composite depth. Biogenic components of the sediment were measured across this interval in order to better define the events that occurred at the P/E boundary in the equatorial Pacific Ocean. A 26-cm interval low in CaCO3 was identified, whereas biogenic silica and organic carbon remained unchanged. Although CaCO3, biogenic silica, and organic carbon (C-org) production is controlled by different constraints, it is unlikely that an environmental factor would cease production by CaCO3-producing organisms without affecting biogenic silica or C-org production. The data indicate that the CaCO3 P/E boundary event was caused by a change in CaCO3 preservation rather than a change in CaCO3 production.
    Keywords: 199-1221C; Calcium carbonate; Carbon, inorganic, total; Carbon, organic, total; Carbon, total; Coulometry; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg199; North Pacific Ocean; Ocean Drilling Program; ODP; Opal, biogenic silica; Sample code/label; Sample comment
    Type: Dataset
    Format: text/tab-separated-values, 1134 data points
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    DATA PANGAEA
  • 9
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    (Table T1) Accumulation rates and concentrations of organic carbon, carbonate and silicate in ODP Site 199-1218 sediments (2005)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 199-1218; Accumulation rate, calcium carbonate; Accumulation rate, mass; Accumulation rate, silica; Accumulation rate, total organic carbon; AGE; Calcium carbonate; Carbon, organic, total; COMPCORE; Composite Core; Density, dry bulk; Density, wet bulk; Depth, composite mean; Depth, composite revised; Depth, composite revised mean; DEPTH, sediment/rock; Differential Offset; DSDP/ODP/IODP sample designation; Joides Resolution; Leg199; North Pacific Ocean; Ocean Drilling Program; ODP; Opal, biogenic silica; Paleolatitude; Paleolongitude; Reference/source; Sample code/label; Sedimentation rate
    Type: Dataset
    Format: text/tab-separated-values, 13946 data points
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    DATA PANGAEA
  • 10
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    (Table 1) Age model of ODP Leg 198 sites (2010)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 198-1209; 198-1210; 198-1211; Age model; Ageprofile Datum Description; COMPCORE; Composite Core; DEPTH, sediment/rock; Event label; Joides Resolution; Leg198; North Pacific Ocean; Ocean Drilling Program; ODP; Reference/source
    Type: Dataset
    Format: text/tab-separated-values, 39 data points
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    DATA PANGAEA
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