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  • 1
    facet.materialart.
    Unknown
    Micro-XRF scanning results of rhyolitic tephra layers from the Auckland Volcanic Field, Chromium X-ray tube (2019)
    PANGAEA
    In:  Supplement to: Peti, Leonie; Gadd, Patricia S; Hopkins, Jenni L; Augustinus, Paul C (2019): Itrax μ‐XRF core scanning for rapid tephrostratigraphic analysis: a case study from the Auckland Volcanic Field maar lakes. Journal of Quaternary Science, https://doi.org/10.1002/jqs.3133
    Details
    Publication Date: 2024-03-01
    Description: Itrax Micro-XRF scanning results recorded at the Australian Nuclear Science and Technology Organisation (ANSTO; Sydney, Australia) on Molybdenum and Chromium X-ray tubes. Various step sizes, exposure times and scanning positions. Tephra names following EMPA ID as stated in the related manuscript.
    Keywords: Aluminium; Antimony; Auckland, New Zealand; Barium; Calcium; Chlorine; Coherent scatter, counts; Core wireline system; Count rate, incoming; Count rate, outgoing; CWS; Dead time; Gallium; Height; Identification; Incoherent scatter, counts; Iron; Itrax; Lanthanum; Magnesium; Manganese; Mean squared error; Micro-X-ray fluorescence ITRAX core scanner; micro-XRF; New Zealand; Nickel; Orakei_Basin_2016; Phosphorus; Position; Position, length; Potassium; Praseodymium; Rubidium; Samarium; Scandium; Section; Sediment cores; Silicon; Strontium; Sulfur; Tephra; Tephra/volcanic ash; Tephrastatigraphy; Thulium; Time in seconds; Tin; Titanium; Tubes; Validation flag/comment; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 414018 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Micro-XRF scanning results of rhyolitic tephra layers from the Auckland Volcanic Field, Molybdenum X-ray tube (2019)
    PANGAEA
    In:  Supplement to: Peti, Leonie; Gadd, Patricia S; Hopkins, Jenni L; Augustinus, Paul C (2019): Itrax μ‐XRF core scanning for rapid tephrostratigraphic analysis: a case study from the Auckland Volcanic Field maar lakes. Journal of Quaternary Science, https://doi.org/10.1002/jqs.3133
    Details
    Publication Date: 2024-03-01
    Description: Itrax Micro-XRF scanning results recorded at the Australian Nuclear Science and Technology Organisation (ANSTO; Sydney, Australia) on Molybdenum and Chromium X-ray tubes. Various step sizes, exposure times and scanning positions. Tephra names following EMPA ID as stated in the related manuscript.
    Keywords: Aluminium; Antimony; Arsenic; Auckland, New Zealand; Barium; Bromine; Calcium; Chlorine; Chromium; Coherent scatter, counts; Core wireline system; Count rate, incoming; Count rate, outgoing; CWS; Dead time; Height; Identification; Incoherent scatter, counts; Iron; Itrax; Lanthanum; Manganese; Mean squared error; Micro-X-ray fluorescence ITRAX core scanner; micro-XRF; New Zealand; Nickel; Orakei_Basin_2016; Phosphorus; Position; Position, length; Potassium; Praseodymium; Rubidium; Samarium; Section; Sediment cores; Selenium; Silicon; Strontium; Sulfur; Tephra; Tephra/volcanic ash; Tephrastatigraphy; Thulium; Time in seconds; Tin; Titanium; Tubes; Validation flag/comment; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 220920 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
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    Unknown
    Chronostratigraphy of a 270-ka sediment record from Lake Selina, Tasmania: Combining radiometric, geomagnetic and climatic dating (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Lake sediment archives covering several glacial cycles are scarce in the Southern Hemisphere and they are challenging to date. Here we present the chronostratigraphy of the oldest continuous lake sediment archive in Tasmania, Australia; a 5.5 m and 270 ka (Marine Isotope Stage 8) sediment core from Lake Selina. We employ radiometric dating (radiocarbon and optically stimulated luminescence) and relative dating (geomagnetic and climate comparisons). Bayesian modeling of the radiometric ages reaches back to 80 ka (1.7 m) and relative dating using a dynamic programing algorithm allows dating of the full sequence. Elemental data, magnetic properties and beryllium isotopes from Lake Selina reveal a close fit to Antarctic ice core climate proxies. Weaker correlation during the Last Glacial Period (MIS 2-4) is attributed to additional local factors impacting Lake Selina proxies at a time of climate changes and human arrival into Tasmania. Over that period, full vector paleomagnetic records and authigenic 10Be/9Be ratios are combined to identify the Laschamp geomagnetic excursion for the first time in Australia and constrain the chronology. The multi-method approach provides two preferred age models, indiscernible within their uncertainties, which allows the use of a geomagnetic dipole-independent (full archive) or a climate-independent (111 ka to present) age model.
    Keywords: Core; CORE; Paleomagnetic data; TAS1402; Tasmania, Australia
    Type: Dataset
    Format: application/zip, 2.4 MBytes
    Location Call Number Limitation Availability
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    DATA PANGAEA
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