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PANGAEA.
Data Publisher for Earth & Environmental Science
Abstract:
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).
Keyword(s):
Bering Sea; element ratios; Fe/S; Fe/Ti; high resolution; IODP Exp. 323; laminated; North Pacific; Si/Ti; X-ray fluorescence; X-ray fluorescence scanning; XRF
Related to:
Knudson, Karla P; Ravelo, Ana Christina; Aiello, Ivano W; Knudson, C P; Drake, Michelle K; Sakamoto, Tatsuhiko (accepted): Causes and Timing of Subarctic Pacific Hypoxia. Science Advances
Coverage:
Median Latitude: 54.828328 * Median Longitude: 176.916826 * South-bound Latitude: 54.828312 * West-bound Longitude: 176.916712 * North-bound Latitude: 54.828362 * East-bound Longitude: 176.917053
Minimum Elevation: -818.8 m * Maximum Elevation: -818.2 m
Event(s):
323-U1342A * Latitude: 54.828312 * Longitude: 176.916712 * Elevation: -818.3 m * Recovery: 57.39 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 53.3 m cored; 108 % recovered
323-U1342C * Latitude: 54.828362 * Longitude: 176.917053 * Elevation: -818.8 m * Recovery: 47.06 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 6 cores; 45.4 m cored; 104 % recovered
323-U1342D * Latitude: 54.828312 * Longitude: 176.916712 * Elevation: -818.2 m * Recovery: 86.37 m * Campaign: Exp323 (Bering Sea Paleoceanography) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 127.7 m cored; 68 % recovered
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventKnudson, Karla P
2Latitude of eventLatitudeKnudson, Karla P
3Longitude of eventLongitudeKnudson, Karla P
4Sample code/labelSample labelKnudson, Karla PDSDP/ODP/IODP sample designation
5Depth, correctedDepth corrmKnudson, Karla PF2
6Section Top in meters below surfaceTopmbsfKnudson, Karla Pm, CSF-A
7OffsetOffsetmKnudson, Karla P
8Depth, compositeDepth compmcdKnudson, Karla Pm, CSF-A
9AGEAgeka BPKnudson, Karla PGeocode
10MaterialMaterialKnudson, Karla P
11SiliconSicpsKnudson, Karla PX-ray fluorescence (XRF)INT (elemental fluorescence intensity)
12Silicon dioxideSiO2%Knudson, Karla PX-ray fluorescence (XRF)ms%
13Silicon dioxideSiO2%Knudson, Karla PX-ray fluorescence (XRF)mol%
14SulfurScpsKnudson, Karla PX-ray fluorescence (XRF)INT (elemental fluorescence intensity)
15SulfurS%Knudson, Karla PX-ray fluorescence (XRF)ms%
16SulfurS%Knudson, Karla PX-ray fluorescence (XRF)mol%
17TitaniumTicpsKnudson, Karla PX-ray fluorescence (XRF)INT (elemental fluorescence intensity)
18Titanium dioxideTiO2%Knudson, Karla PX-ray fluorescence (XRF)ms%
19Titanium dioxideTiO2%Knudson, Karla PX-ray fluorescence (XRF)mol%
20IronFecpsKnudson, Karla PX-ray fluorescence (XRF)INT (elemental fluorescence intensity)
21Iron oxide, Fe2O3Fe2O3%Knudson, Karla PX-ray fluorescence (XRF)ms%
22Iron oxide, Fe2O3Fe2O3%Knudson, Karla PX-ray fluorescence (XRF)mol%
23Electric currentElect curAKnudson, Karla P
24Iron/Sulfur ratioFe/SKnudson, Karla PCalculated
25Silicon/Titanium ratioSi/TiKnudson, Karla PCalculated
26Iron/Titanium ratioFe/TiKnudson, Karla PCalculated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
196768 data points

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