de.pangaea.dataset932968 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-07-15T18:41:42Z https://doi.pangaea.de/10.1594/PANGAEA.932968 <gco:CharacterString>High resolution XRF from IODP Site 323-U1342</gco:CharacterString> 2021-06-24T09:05:00 publication https://doi.org/10.1594/PANGAEA.932968 Sakamoto, Tatsuhiko
tats@bio.mie-u.ac.jp
author Ravelo, Ana Christina
acr@ucsc.edu
https://orcid.org/0000-0003-3929-677X information author Knudson, Karla P
knudsonk@gmail.com
https://orcid.org/0000-0002-1020-3042 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital We present new high resolution records of elemental ratios from Integrated Ocean Drilling Program Expedition 323 Site U1342 in the Bering Sea. Sediment cores measured by non-disruptive XRF with the TATSCAN-F2 at the Japan Agency for Marine-Earth Technology in 2009. Si/Ti, Fe/Ti, and Fe/S ratios were calculated based on the mass measurements (at 0.50 cm resolution) of each of these elements. XRF measurements are likely not greatly affected by water attenuation, since precautions were taken to scan IODP cores after they had been opened and were no longer damp. Core tops (including the B/A laminated interval at this site) may be an exception for XRF reliability, as they are relatively soft and have greatest porosity and water content. In Knudson et al. (2021, Science Advances), Fe/Ti ratios were used to look at a possible change in iron source, and Si/Ti ratios were used as a proxy for biogenic opal deposition. This instrument, analytical methods, precision, and accuracy are described in detail in Sakamoto et al., 2006: T. Sakamoto, K. Kuroki, T. Sugawara, K. Aoike, K. Iijima, S. Sugisaki, Non-destructive X-ray fluorescence (XRF) core-imaging scanner, TATSCAN-F2. Sci. Drill 2, 37-39 (2006). completed Knudson, Karla P
knudsonk@gmail.com
https://orcid.org/0000-0002-1020-3042 information principalInvestigator Bering Sea element ratios Fe/S Fe/Ti High resolution IODP IODP Exp. 323 laminated North Pacific Si/Ti X-ray fluorescence X-ray fluorescence scanning XRF theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 176.91671166667 176.91705333333 54.828311666667 54.828361666667 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Sample code/label thematicClassification DSDP/ODP/IODP sample designation Depth, corrected physicalMeasurement F2 m m Section Top in meters below surface physicalMeasurement m, CSF-A mbsf mbsf Offset physicalMeasurement m m Depth, composite physicalMeasurement m, CSF-A mcd mcd AGE physicalMeasurement ka BP ka BP Material thematicClassification Silicon physicalMeasurement X-ray fluorescence (XRF); INT (elemental fluorescence intensity) cps cps Silicon dioxide physicalMeasurement X-ray fluorescence (XRF); ms% % % Silicon dioxide physicalMeasurement X-ray fluorescence (XRF); mol% % % Sulfur physicalMeasurement X-ray fluorescence (XRF); INT (elemental fluorescence intensity) cps cps Sulfur physicalMeasurement X-ray fluorescence (XRF); ms% % % Sulfur physicalMeasurement X-ray fluorescence (XRF); mol% % % Titanium physicalMeasurement X-ray fluorescence (XRF); INT (elemental fluorescence intensity) cps cps Titanium dioxide physicalMeasurement X-ray fluorescence (XRF); ms% % % Titanium dioxide physicalMeasurement X-ray fluorescence (XRF); mol% % % Iron physicalMeasurement X-ray fluorescence (XRF); INT (elemental fluorescence intensity) cps cps Iron oxide, Fe2O3 physicalMeasurement X-ray fluorescence (XRF); ms% % % Iron oxide, Fe2O3 physicalMeasurement X-ray fluorescence (XRF); mol% % % Electric current physicalMeasurement A A Iron/Sulfur ratio thematicClassification Calculated Silicon/Titanium ratio thematicClassification Calculated Iron/Titanium ratio thematicClassification Calculated text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.932968?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 323-U1342A * LATITUDE: 54.828312 * LONGITUDE: 176.916712 * ELEVATION: -818.3 m * RECOVERY: 57.39 m * CAMPAIGN: Exp323 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 9 cores; 53.3 m cored; 108 % recovered EVENT LABEL: 323-U1342C * LATITUDE: 54.828362 * LONGITUDE: 176.917053 * ELEVATION: -818.8 m * RECOVERY: 47.06 m * CAMPAIGN: Exp323 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 6 cores; 45.4 m cored; 104 % recovered EVENT LABEL: 323-U1342D * LATITUDE: 54.828312 * LONGITUDE: 176.916712 * ELEVATION: -818.2 m * RECOVERY: 86.37 m * CAMPAIGN: Exp323 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 19 cores; 127.7 m cored; 68 % recovered Related to <gco:CharacterString>Causes and timing of recurring subarctic Pacific hypoxia</gco:CharacterString> 2021-01-01 publication https://doi.org/10.1126/sciadv.abg2906 Knudson, Karla P
knudsonk@gmail.com
https://orcid.org/0000-0002-1020-3042 information author Ravelo, Ana Christina
acr@ucsc.edu
https://orcid.org/0000-0003-3929-677X information author Aiello, Ivano W
iaiello@mlml.calstate.edu
https://orcid.org/0000-0001-9794-6852 information author Drake, Michelle K
mkdrake@ucsc.edu
https://orcid.org/0000-0001-9618-1325 information author Sakamoto, Tatsuhiko
tats@bio.mie-u.ac.jp
author documentDigital Science Advances 7(23) eabg2906