Data report; Reanalysis of interstitial water barium, iron, and sulfur concentrations at Sites U1426 and U1427

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doi: 10.2204/iodp.proc.346.203.2017
Author(s): Miller, Clint M.; Dickens, Gerald R.
Integrated Ocean Drilling Program, Expedition 346 Scientists, College Station, TX
Author Affiliation(s): Primary:
Rice University, Department of Earth Sciences, Houston, TX, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Asian monsoon; Expedition 346 of the riserless drilling platform, Valdez, Alaska (USA), to Busan, Republic of Korea; Sites U1422-U1430, 29 July-28 September 2013
Volume Author(s): Tada, Ryuji; Murray, Richard W.; Alvarez Zarikian, Carlos; Lofi, Johanna; Anderson, William T., Jr.; Bassetti, Maria-Angela; Brace, Bobbi J.; Clemens, Steven C.; da Costa Gurgel, Marcio H.; Dickens, Gerald R.; Dunlea, Ann G.; Gallagher, Stephen J.; Giosan, Liviu; Henderson, Andrew C. G.; Holbourn, Ann E.; Ikehara, Ken; Irino, Tomohisa; Itaki, Takuya; Karasuda, Akinori; Kinsley, Christopher W.; Kubota, Yoshimi; Lee, Gwang Soo; Lee, Kyung Eun; Lopes, Cristina I. C. D.; Peterson, Larry C.; Saavedra-Pellitero, Mariem; Sagawa, Takuya; Singh, Raj K.; Sugisaki, Saiko; Toucanne, Samuel; Wan Shiming; Xuan, Chuang; Zheng Hongbo; Ziegler, Martin
Source: Proceedings of the Integrated Ocean Drilling Program; Asian monsoon; Expedition 346 of the riserless drilling platform, Valdez, Alaska (USA), to Busan, Republic of Korea; Sites U1422-U1430, 29 July-28 September 2013, Ryuji Tada, Richard W. Murray, Carlos Alvarez Zarikian, Johanna Lofi, William T. Anderson, Jr., Maria-Angela Bassetti, Bobbi J. Brace, Steven C. Clemens, Marcio H. da Costa Gurgel, Gerald R. Dickens, Ann G. Dunlea, Stephen J. Gallagher, Liviu Giosan, Andrew C. G. Henderson, Ann E. Holbourn, Ken Ikehara, Tomohisa Irino, Takuya Itaki, Akinori Karasuda, Christopher W. Kinsley, Yoshimi Kubota, Gwang Soo Lee, Kyung Eun Lee, Cristina I. C. D. Lopes, Larry C. Peterson, Mariem Saavedra-Pellitero, Takuya Sagawa, Raj K. Singh, Saiko Sugisaki, Samuel Toucanne, Wan Shiming, Chuang Xuan, Zheng Hongbo and Martin Ziegler; Integrated Ocean Drilling Program, Expedition 346 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.346, 7p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 1930-1014 CODEN: IDSDA6
Note: In English. 17 refs.; illus., incl. 2 tables, sketch map
Summary: Within the south of the marginal sea between Japan and Korea, interstitial water (IW) profiles exhibit a prominent sulfate-methane transition (SMT) in the upper few meters of sediment. As the SMT has become a focus of attention, IW samples were collected at high spatial resolution within shallow sediment at Sites U1426 and U1427 and examined on board the R/V JOIDES Resolution, under the auspices of the Integrated Ocean Drilling Program, for a wide range of dissolved species. However, irregularities were noted for the sulfate (SO42-), Ba, and Fe concentration profiles, each of importance to understanding the SMT. Splits of 134 IW samples, prepared with HNO3 during the expedition, were therefore reanalyzed at Rice University for S, Ba, and Fe, with S as a proxy for SO42-. Results of 134 samples included 29 duplicates with low percent difference (0.01%-14.69%, 0.01%-14.90%, and 0.03%-35.19%) and 6 spiked blanks with low percent error relative to stock solution concentration (1.59%, 2.41%, and 4.11%). The shore-based S and Ba profiles have trends similar to those determined on ship but with obvious offsets. The remeasured Fe profiles are comparable to those measured on ship, albeit with more data points. Although the IW samples were measured between 95 and 113 days after the expedition, the new results have high data reproducibility, render smooth profiles, and give more expected chemistry across the SMTs. For these three elements, we suggest the new results should replace the shipboard data.
Year of Publication: 2017
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 07 Marine Geology and Oceanography; Alkaline earth metals; Barium; Concentration; Cores; Expedition 346; Geochemistry; Hydrochemistry; IODP Site U1426; IODP Site U1427; Integrated Ocean Drilling Program; Iron; Japan Sea; Marine sediments; Metals; North Pacific; Northwest Pacific; Pacific Ocean; Pore water; Sea water; Sediments; Sulfate ion; Sulfur; West Pacific; Yamato Basin
Coordinates: N370200 N370200 E1344800 E1344759
N355755 N355756 E1342636 E1342636
Record ID: 2017086098
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