Sakamoto Tatsuhiko tats@bio.mie-u.ac.jp Ravelo Ana Christina acr@ucsc.edu 0000-0003-3929-677X Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 2021 High resolution XRF from IODP Site 323-U1342 dataset https://doi.org/10.1594/PANGAEA.932968 2021-06-24T09:05:00 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). Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Ravelo Ana Christina acr@ucsc.edu 0000-0003-3929-677X Aiello Ivano W iaiello@mlml.calstate.edu 0000-0001-9794-6852 Drake Michelle K mkdrake@ucsc.edu 0000-0001-9618-1325 Sakamoto Tatsuhiko tats@bio.mie-u.ac.jp 2021 Causes and timing of recurring subarctic Pacific hypoxia journal article Science Advances 7(23) https://doi.org/10.1126/sciadv.abg2906 eabg2906 176.91671166667 176.91705333333 54.828311666667 54.828361666667 176.91682555555667 54.828328333333666 -818.8 -818.2 not specified 323-U1342A 54.828311666667 176.91671166667 -818.3 Exp323 Exp323 Bering Sea Paleoceanography Bering Sea Paleoceanography 2009-07-05T00:00:00 2009-07-05 2009-09-04T00:00:00 2009-09-04 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Takahashi, Kozo Takahashi, Kozo Ravelo, Ana Christina Ravelo, Ana Christina doi:10.2204/iodp.proc.323.2011 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 57.39 m 9 cores; 53.3 m cored; 108 % recovered 323-U1342C 54.828361666667 176.91705333333 -818.8 Exp323 Exp323 Bering Sea Paleoceanography Bering Sea Paleoceanography 2009-07-05T00:00:00 2009-07-05 2009-09-04T00:00:00 2009-09-04 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Takahashi, Kozo Takahashi, Kozo Ravelo, Ana Christina Ravelo, Ana Christina doi:10.2204/iodp.proc.323.2011 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 47.06 m 6 cores; 45.4 m cored; 104 % recovered 323-U1342D 54.828311666667 176.91671166667 -818.2 Exp323 Exp323 Bering Sea Paleoceanography Bering Sea Paleoceanography 2009-07-05T00:00:00 2009-07-05 2009-09-04T00:00:00 2009-09-04 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Takahashi, Kozo Takahashi, Kozo Ravelo, Ana Christina Ravelo, Ana Christina doi:10.2204/iodp.proc.323.2011 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 86.37 m 19 cores; 127.7 m cored; 68 % recovered 196768 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Event Latitude of event Latitude Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Latitude Longitude of event Longitude Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Longitude Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Sample label (DSDP/ODP/IODP sample designation) Depth, corrected Depth corr m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 F2 Depth corr [m] (F2) Section Top in meters below surface Top mbsf surface http://purl.obolibrary.org/obo/ENVO_00010504 Length L http://dbpedia.org/resource/Length Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 m, CSF-A Top [mbsf] (m, CSF-A) Offset Offset m offset http://purl.obolibrary.org/obo/PATO_0002436 Length L http://dbpedia.org/resource/Length Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Offset [m] Depth, composite Depth comp mcd depth http://purl.obolibrary.org/obo/PATO_0001595 Luminous Intensity J http://dbpedia.org/resource/Luminous_intensity Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 m, CSF-A Depth comp [mcd] (m, CSF-A) AGE Age ka BP http://en.wikipedia.org/wiki/Kyr age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Age [ka BP] Material Material Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Material Silicon Si cps silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 Frequency http://dbpedia.org/resource/Frequency X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 INT (elemental fluorescence intensity) Si [cps] (INT (elemental fluorescence i...) Silicon dioxide SiO2 % https://en.wikipedia.org/wiki/Silicon_dioxide silicon dioxide http://purl.obolibrary.org/obo/CHEBI_30563 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 ms% SiO2 [%] (ms%, X-ray fluorescence (XRF)) Silicon dioxide SiO2 % https://en.wikipedia.org/wiki/Silicon_dioxide silicon dioxide http://purl.obolibrary.org/obo/CHEBI_30563 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 mol% SiO2 [%] (mol%, X-ray fluorescence (XRF)) Sulfur S cps sulfur Frequency http://dbpedia.org/resource/Frequency X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 INT (elemental fluorescence intensity) S [cps] (INT (elemental fluorescence i...) Sulfur S % sulfur Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 ms% S [%] (ms%, X-ray fluorescence (XRF)) Sulfur S % sulfur Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 mol% S [%] (mol%, X-ray fluorescence (XRF)) Titanium Ti cps titanium Ti https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:33341 Frequency http://dbpedia.org/resource/Frequency X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 INT (elemental fluorescence intensity) Ti [cps] (INT (elemental fluorescence i...) Titanium dioxide TiO2 % https://en.wikipedia.org/wiki/Titanium_dioxide titanium dioxide http://purl.obolibrary.org/obo/CHEBI_32234 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 ms% TiO2 [%] (ms%, X-ray fluorescence (XRF)) Titanium dioxide TiO2 % https://en.wikipedia.org/wiki/Titanium_dioxide titanium dioxide http://purl.obolibrary.org/obo/CHEBI_32234 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 mol% TiO2 [%] (mol%, X-ray fluorescence (XRF)) Iron Fe cps Frequency http://dbpedia.org/resource/Frequency X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 INT (elemental fluorescence intensity) Fe [cps] (INT (elemental fluorescence i...) Iron oxide, Fe2O3 Fe2O3 % iron oxide http://purl.obolibrary.org/obo/CHEBI_50816 ferric oxide Fe2O3 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 ms% Fe2O3 [%] (ms%, X-ray fluorescence (XRF)) Iron oxide, Fe2O3 Fe2O3 % iron oxide http://purl.obolibrary.org/obo/CHEBI_50816 ferric oxide Fe2O3 Dimensionless Ratio ψ X-ray fluorescence (XRF) Optical tools & radiometric sensors X-ray fluorescence analysers http://vocab.nerc.ac.uk/collection/L05/current/LAB25/ Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 mol% Fe2O3 [%] (mol%, X-ray fluorescence (XRF)) Electric current Elect cur A http://en.wikipedia.org/wiki/Electric_current Electric Current I http://dbpedia.org/resource/Electric_current Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Elect cur [A] Iron/Sulfur ratio Fe/S sulfur ratio Calculated Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Fe/S (Calculated) Silicon/Titanium ratio Si/Ti silicon Si https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27573 titanium Ti https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:33341 ratio Calculated Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Si/Ti (Calculated) Iron/Titanium ratio Fe/Ti titanium Ti https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:33341 ratio Calculated Knudson Karla P knudsonk@gmail.com 0000-0002-1020-3042 Fe/Ti (Calculated) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable 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 GFBio author25054 author25759 author28242 author40140 author62107 basis5 campaign3397419 campaign34228 curlevel30 event2596960 event2596962 event2596963 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 journal16776 license21 method10974 method36 method50 method5059 param115210 param123794 param135115 param15077 param16056 param186962 param19989 param2 param45229 param52476 param6212 param6213 param6251 param6810 param702 param703 param705 param790 pi62107 ref108993 term1073131 term1073135 term1073145 term1073224 term1073388 term1074061 term1074190 term2299416 term233 term2663825 term38478 term38522 term40685 term40802 term43794 term43806 term43838 term43863 term43884 term43975 term43997 term47910 term492 term50387 term50790 term50792 term53375 term67649 term68609 term68610 term68611 term68612 term68613 term68614 topotype1