PANGAEA_932968
High resolution XRF from IODP Site 323-U1342
Sakamoto, Tatsuhiko; Ravelo, Ana Christina; Knudson, Karla P
High resolution XRF from IODP Site 323-U1342
2021-06-24
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.932968
Investigator
Karla P
Knudson
knudsonk@gmail.com
Earth Science
Event label
Latitude of event
Longitude of event
Sample code/label
Depth, corrected
Section Top in meters below surface
Offset
Depth, composite
AGE
Material
Silicon
Silicon dioxide
Sulfur
Sulfur
Titanium
Titanium dioxide
Iron
Iron oxide, Fe2O3
Electric current
Iron/Sulfur ratio
Silicon/Titanium ratio
Iron/Titanium ratio
geoscientificInformation
323-U1342A
323-U1342C
323-U1342D
Bering Sea
Drilling/drill rig
element ratios
Exp323
Fe/S
Fe/Ti
High resolution
IODP
IODP Exp. 323
laminated
North Pacific
Si/Ti
X-ray fluorescence
X-ray fluorescence scanning
XRF
DSDP/ODP/IODP sample designation
X-ray fluorescence (XRF)
Calculated
Joides Resolution
Complete
54.828311666667
54.828361666667
176.91671166667
176.91705333333
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
196768 data points
text/tab-separated-values
Knudson, Karla P; Ravelo, Ana Christina; Aiello, Ivano W; Drake, Michelle K; Sakamoto, Tatsuhiko (2021): Causes and timing of recurring subarctic Pacific hypoxia. Science Advances, 7(23), eabg2906, https://doi.org/10.1126/sciadv.abg2906
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). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.932968"!
http://en.wikipedia.org/wiki/Electric_current
Electric current
http://en.wikipedia.org/wiki/Kyr
AGE
https://doi.org/10.1126/sciadv.abg2906
Causes and timing of recurring subarctic Pacific hypoxia
https://en.wikipedia.org/wiki/Silicon_dioxide
Silicon dioxide
https://en.wikipedia.org/wiki/Titanium_dioxide
Titanium dioxide
https://hdl.handle.net/10013/epic.27914.d001
DSDP/ODP/IODP sample designation
https://www-odp.tamu.edu:443/resolutn.html
Joides Resolution
DIF
9.4
2021-06-24
2026-07-15