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
  • 1
    facet.materialart.
    Unknown
    Element analysis from sediment core ORI-891-16-P1 (2021)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Description: The here presented data comprises the z-score normalised XRF data counts for the elements Si, K, Ti, Mn, Fe, Br, Rb, Sr and Zr from sediment core ORI-891-16-P1 (19° 33.36'N, 116° 6.77'E; 1595 m water depth). Data is provided against age.
    Keywords: AGE; Bromine, normalized; Calcium, normalized; Iron, normalized; Manganese, normalized; ORI-891-16-P1; PC; Piston corer; Potassium, normalized; Rubidium, normalized; Silicon, normalized; Strontium, normalized; Titanium, normalized; X-ray fluorescence (XRF); Zirconium, normalized
    Type: Dataset
    Format: text/tab-separated-values, 7310 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    ln-Titanium/Calcium ratio from sediment core ORI-891-16-P1 (2021)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Description: The here presented data contains the ln(Ti/Ca) ratio against core depth (m) and age (kyr) from sediment core ORI-891-16-P1 (19° 33.36'N, 116° 6.77'E; 1595 m water depth). The XRF core scanning measurements were conducted at the National Taiwan University (NTU) using an Itrax Cox XRF core scanner. The measurements were conducted using a generator setting of 30 kV, a current of 50 mA and a count time of 5 s. To eliminate non-linear matrix effects and constant-sum constraints, we used logratios to account for a statistically more robust representation of element ratio. The ln(Ti/Ca) element ratio is considered a proxy for terrigenous input, with Ti being dominated by the presence of various heavy minerals e.g. ilmenite, perovskite, rutile and titanite. In contrast, Ca contents have been related to biogenic carbonate variability which is considered a background pelagic signal.
    Keywords: AGE; DEPTH, sediment/rock; East Asian summer monsoon; ln-Titanium/Calcium ratio; ORI-891-16-P1; PC; Piston corer; South China Sea; X-ray fluorescence (XRF); XRF data
    Type: Dataset
    Format: text/tab-separated-values, 731 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Geochemical data from sediment core ORI-891-16-P1 (2021)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Description: The here presented data comprises the dry bulk density in g/cc, the total organic content (TOC) in %, the total inorganic content (TIC) in %, the total carbon content (TC) in %, the calcium carbonate content (CaCO3) in %, the terrigenous influx rate in g kyr-1 cm-2 and the z-score normalised XRF data counts for the elements Si, K, Ti, Mn, Fe, Br, Rb, Sr and Zr from sediment core ORI-891-16-P1 (19° 33.36'N, 116° 6.77'E; 1595 m water depth). Data is provided against age.
    Keywords: ORI-891-16-P1; PC; Piston corer
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    Carbon content and terrestrial flux data from sediment core ORI-891-16-P1 (2021)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Description: The here presented data comprises the dry bulk density in g/cc, the total organic content (TOC) in %, the total inorganic content (TIC) in %, the total carbon content (TC) in %, the calcium carbonate content (CaCO3) in %, the terrigenous influx rate in g kyr-1 cm-2 from sediment core ORI-891-16-P1 (19° 33.36'N, 116° 6.77'E; 1595 m water depth). Data is provided against age.
    Keywords: AGE; Calcium carbonate; Calculated; Carbon, inorganic, total; Carbon, organic, total; Carbon, total; Density, dry bulk; ORI-891-16-P1; PC; Piston corer; Terrigenous, flux
    Type: Dataset
    Format: text/tab-separated-values, 483 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    Decadal hydroclimatic variability in the western coastal United States: temporal and spatial variations in precipitation, streamflow, and lake level (2021)
    In:  http://aquaticcommons.org/id/eprint/15829 | 8 | 2014-12-10 23:14:35 | 15829
    Details
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):We have analyzed streamflow variations recorded at 15 USGS gauging stations in California during the past 90 years or so. The anomalies (departures from the 1960-1990 mean discharge) of streamflow on annual-to-decadal time scales are strongly correlated with precipitation anomalies in each drainage basin. ... Although causes of the decadal climate (precipitation) variability are not known with certainty, the use of streamflow records may help us understand the relative strengths of moisture sources and shift of the jet stream in atmospheric circulation.
    Keywords: Atmospheric Sciences ; Limnology ; PACLIM ; hydrology
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 79-91
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Carbon isotope exchange during anaerobic oxidation of methane (AOM) in sediments of the northeastern South China Sea (2019)
    Elsevier
    In:  Geochimica et Cosmochimica Acta, 246 . pp. 138-155.
    Details
    Publication Date: 2022-01-31
    Description: The major processes that determine the distribution of methane (CH4) in anoxic marine sediments are methanogenesis and the anaerobic oxidation of methane (AOM), with organoclastic sulfate reduction exerting an important secondary control. However, the factors leading to the distribution of stable carbon isotopes (δ13C) of CH4 are currently poorly understood, in particular the commonly-observed minimum in δ13C-CH4 at the sulfate-methane transition (SMT) where AOM rates reach maximum values. Conventional isotope systematics predict 13C-enrichment of CH4 in the SMT due to preferential 12CH4 consumption by AOM. Two hypotheses put forward to explain this discrepancy are the addition of 12C-enriched CH4 to porewaters by methanogenesis in close proximity to AOM, and enzymatically-mediated carbon isotope equilibrium between forward and backward AOM at low concentrations of sulfate. To examine this in more detail, field data including δ13C of CH4 and dissolved inorganic carbon (DIC) from the continental margin offshore southwestern Taiwan were simulated with a reaction-transport model. Model simulations showed that the minima in δ13C-CH4 and δ13C-DIC in the SMT could only be simulated with carbon isotope equilibrium during AOM. The potential for carbon cycling between methanogenesis and AOM in and just below the SMT was insignificant due to very low rates of methanogenesis. Backward AOM also gives rise to a pronounced kink in the δ13C-DIC profile several meters below the SMT that has been observed in previous studies. We suggest that this kink marks the true base of the SMT where forward and backward AOM are operating at very low rates, possibly sustained by cryptic sulfur cycling or barite dissolution.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/j.gca.2018.11.003
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...