GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 86-576; 86-576B; 86-578; Atomic absorption spectrometry (AAS); Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9, standard deviation; Beryllium-10/Beryllium-9 ratio; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg86; North Pacific; Sample code/label; see reference(s)  (1)
  • AGE; Age, 206Pb/207Pb Lead-Lead; Age, 230Thorium; Age, comment; Age, dated; Age, dated standard deviation; Corrected; DRILL; Drilling/drill rig; Florida shelf; Laboratory code/label; Legare_Anchorage; Measured; Method comment; Percivalia arata; Sample code/label; Thorium-230, standard deviation; Thorium-232; Thorium-232, standard deviation; Thorium-232/Thorium-230, standard deviation; Thorium-232/Thorium-230 ratio; Uranium-238; Uranium-238, standard deviation; δ234 Uranium; δ234 Uranium, standard deviation  (1)
  • Age, dated; Age, dated material; Age, dated standard error; Comment; Core; CORE; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gulf of California; LPAZ-21P; Sample ID  (1)
Document type
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    Foraminifera and wood 14C in the Gulf of California from sediment core LPAZ-21P (2018)
    PANGAEA
    Details
    Publication Date: 2023-02-08
    Keywords: Age, dated; Age, dated material; Age, dated standard error; Comment; Core; CORE; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gulf of California; LPAZ-21P; Sample ID
    Type: Dataset
    Format: text/tab-separated-values, 923 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    (Table 1) 10 Beryllium and CaCO3 at DSDP Holes 86-576B, 86-576, and 86-578
    PANGAEA
    In:  Supplement to: Ku, Teh-Lung; Southon, John R; Vogel, John S; Liang, Z C; Kusakabe, M; Nelson, D Erle (1985): 10Be distributions in Deep Sea Drilling Project Site 576 and Site 578 sediments studied by accelerator mass spectrometry. In: Heath GR; Burckle LH; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 86, 539-546, https://doi.org/10.2973/dsdp.proc.86.122.1985
    Details
    Publication Date: 2023-06-27
    Description: Extension of the 10Be geochronology for deep-sea sediments beyond the limit of late Pliocene age found in published works has been attempted. The results obtained on sediments from Deep Sea Drilling Project (DSDP) Sites 576 and 578 of Leg 86 suggest the feasibility of dating sediments as old as 12 to 15 m.y. At both sites, there have been large changes in sedimentation rate, with the Pleistocene sediments accumulating several times faster than those of the Pliocene, which in turn were deposited several times more rapidly than the late Miocene sediments. The Pleistocene-Pliocene section is considerably thicker in Hole 578 than in Hole 576B: the respective depths for the 7 m.y. time boundary in the two holes are about 125 and about 25 m. These 10Be-based age estimates are in agreement with the paleomagnetic stratigraphies established for the two sites. The suggested enhancement in the oceanic deposition of 10Be before 7 to 9 m.y. ago, as noticed in manganese crusts, has found tentative support from the present sedimentary records. A preliminary search for 10Be production variation during a geomagnetic field reversal has been conducted. In Hole 578, an enhanced 10Be concentration is found in a sample close to the Brunhes/Matuyama reversal boundary. More detailed and systematic measurements are required to confirm this observation, which bears on the detailed behavior of the geomagnetic field during the reversal.
    Keywords: 86-576; 86-576B; 86-578; Atomic absorption spectrometry (AAS); Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9, standard deviation; Beryllium-10/Beryllium-9 ratio; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg86; North Pacific; Sample code/label; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 201 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    (Table 1) U and Th isotopic composition and 230Th ages of samples from the A1 and C1 corals of Legare Anchorage (2008)
    PANGAEA
    In:  Supplement to: Druffel, Ellen R M; Robinson, Laura F; Griffin, Sheila; Halley, Roberet B; Southon, John R; Adkins, Jess F (2008): Low reservoir ages for the surface ocean from mid-Holocene Florida corals. Paleoceanography, 23(2), PA2209, https://doi.org/10.1029/2007PA001527
    Details
    Publication Date: 2023-12-11
    Description: The 14C reservoir age of the surface ocean was determined for two Holocene periods (4908-4955 and 3008-3066 calendar (cal) B.P.) using U/Th-dated corals from Biscayne National Park, Florida, United States. We found that the average reservoir ages for these two time periods (294 ± 33 and 291 ± 27 years, respectively) were lower than the average value between A.D. 1600 and 1900 (390 ± 60 years) from corals. It appears that the surface ocean was closer to isotopic equilibrium with CO2 in the atmosphere during these two time periods than it was during recent times. Seasonal d18O measurements from the younger coral are similar to modern values, suggesting that mixing with open ocean waters was indeed occurring during this coral's lifetime. Likely explanations for the lower reservoir age include increased stratification of the surface ocean or increased D14C values of subsurface waters that mix into the surface. Our results imply that a more correct reservoir age correction for radiocarbon measurements of marine samples in this location from the time periods ~3040 and ~4930 cal years B.P. is ~292 ± 30 years, less than the canonical value of 404 ± 20 years.
    Keywords: AGE; Age, 206Pb/207Pb Lead-Lead; Age, 230Thorium; Age, comment; Age, dated; Age, dated standard deviation; Corrected; DRILL; Drilling/drill rig; Florida shelf; Laboratory code/label; Legare_Anchorage; Measured; Method comment; Percivalia arata; Sample code/label; Thorium-230, standard deviation; Thorium-232; Thorium-232, standard deviation; Thorium-232/Thorium-230, standard deviation; Thorium-232/Thorium-230 ratio; Uranium-238; Uranium-238, standard deviation; δ234 Uranium; δ234 Uranium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 170 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...