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1. Trace metal and organic iron ligand data collected during the PLUME RAIDERS cruise (RR2106) on the R/V Roger Revelle from 18 September – 6 November 2021 along the 16-18ºS section of the Southern East Pacific Rise.

   https://doi.org/10.26008/1912/bco-dmo.944890.1  

   Moore, Laura; Buck, Nathan; Resing, Joseph A; Bundy, Randelle M; Moore, Laura; Bundy, Randelle M (January 2024, Biological and Chemical Oceanography Data Management Office (BCO-DMO))

   This dataset includes the concentrations of total dissolvable iron and manganese, dissolved iron and manganese, and dissolved organic iron-binding ligands collected on the PLUME RAIDERS expedition. Samples were collected during the PLUME RAIDERS cruise (RR2106) on the R/V Roger Revelle from 18 September – 6 November 2021. The main study area was located along the 16-18ºS section of the Southern East Pacific Rise, and the sampling was focused near the ride crest at depths below 1,500 m. Both the total dissolvable and dissolved iron and manganese concentrations were determined shipboard using flow injection analysis. The total organic iron-binding ligand data was generated both shipboard and in the lab using competitive ligand exchange adsorptive cathodic stripping voltammetry. The siderophore concentrations were measured following a solid phase extraction step, and then eluents were measured using inductively coupled plasma mass spectrometry. The dissolvable and dissolved metal data was generated by Dr. Joe Resing and Nathan Buck at NOAA-PMEL and the ligand and siderophore data was generated by Dr. Laura Moore and Dr. Randelle Bundy at the University of Washington. 

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2. Chen et al. Tectonothermal evolution of the NW Wyoming Province: Insights from coupled garnet Lu-Hf and Sm-Nd geochronology

   https://doi.org/10.60520/ieda/113263  

   Chen, Tsai-Wei; Vervoort, Jeffrey; Baldwin, Julia; Baker, Peter (January 2026, Interdisciplinary Earth Data Alliance (IEDA))

   These datasets include (1) major- and trace-element compositions of garnet obtained by electron probe microanalysis (EPMA) and inductively coupled plasma mass spectrometry (ICPMS), (2) Lu-Hf and Sm-Nd isotope data for whole-rock and garnet samples obtained by multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS), and (3) major- and trace-element compositions of whole-rock samples obtained by X-ray fluorescence (XRF) and ICPMS. All data were acquired at Washington State University (WSU), Pullman, Washington, USA, in the Radiogenic Isotope and Geochronology Laboratory (RIGL) and the GeoAnalytical Laboratory (GAL). 

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3. Subset of particulate iron, particulate sulfur, dissolved hydrogen, and dissolved methane collected during the PLUME RAIDERS cruise (RR2106) on the R/V Roger Revelle from 18 September – 6 November 2021 along the 16-18ºS section of the Southern East Pacific Rise

   https://doi.org/10.5281/zenodo.17428310  

   Baumberger, Tamara; Buck, Nathaniel; Antriasian, Anson; Bundy, Randelle M; Resing, Joseph; Moore, Laura (January 2025, Zenodo)

   This dataset includes the concentrations of particulate total sulfur, particulate iron, dissolved hydrogen, and dissolved methane measurements for a subset of near-seafloor (< 40 m above bottom) and background water column samples collected on the 18 September to 6 November 2021 PLUME RAIDERS cruise to the 16-18ºS sector of the Southern East Pacific Rise on R/V Roger Revelle. Particulate iron and particulate total sulfur samples were collected at sea and later measured in lab using energy dispersive X-ray fluorescence (ED-XRF). Dissolved hydrogen and methane measurements were collected and processed shipboard using gas chromatography. Dr. Tamara Baumberger and Anson Antriasian generated the dissolved hydrogen and methane data. Nathan Buck generated the particulate iron and particulate total sulfur data."],"Methods":["Samples were collected on the R/V Roger Revelle (cruise RR2106, “PLUME RAIDERS”) expedition to the 16-18ºS section of the southern East Pacific Rise from 18 September to 6 November 2021. Teflon-Lined Go-Flo samplers (General Oceanics) were used to collect water column seawater samples from a trace metal clean CTD-rosette (Seabird Scientific; Cutter and Bruland 2012). Subsamples (100 mL) for dissolved hydrogen and methane were collected via syringe on deck and then analyzed onboard using gas chromatography following the methods outlined in Baumberger et al. (2014) and Kelley et al. (1998). Samples for pFe and pStot were collected in a shipboard clean-air laboratory by filtering seawater (average ~ 6 L) onto 0.2um polycarbonate track etched membrane filters (Whatman) with cellulose ester filter backings (Whatman), followed by a 15 mL rinse step using pH 8 MilliQ-NH4OH solution to remove excess sea salts. Samples were stored in a desiccator until the end of the cruise then later analyzed in the lab using energy dispersion X-ray fluorescence (ED-XRF) following the methods outlined in Buck et al. (2021). References: Baumberger, T., M. D. Lilley, J. A. Resing, J. E. Lupton, E. T. Baker, D. A. Butterfield, E. J. Olson, and G. L. Früh-Green. 2014. Understanding a submarine eruption through time series hydrothermal plume sampling of dissolved and particulate constituents: West Mata, 2008–2012. Geochem. Geophys. Geosystems 15: 4631–4650. doi:10.1002/2014GC005460.Received\n\nBuck, N. J., P. M. Barrett, P. L. Morton, W. M. Landing, and J. A. Resing. 2021. Energy dispersive X-ray fluorescence methodology and analysis of suspended particulate matter in seawater for trace element compositions and an intercomparison with high-resolution inductively coupled plasma-mass spectrometry. Limnol. Oceanogr. Methods 19: 401–415. doi:10.1002/lom3.10433\n\nCutter, G. A., and K. W. Bruland. 2012. Rapid and noncontaminating sampling system for trace elements in global ocean surveys. Limnol. Oceanogr. Methods 10: 425–436. doi:10.4319/lom.2012.10.425\n\nKelley, D. S., M. D. Lilley, J. E. Lupton, and E. J. Olson. 1998. Enriched H2, CH4, 3He concentrations in hydrothermal plumes associated with the 1996 Gorda Ridge eruptive event. Deep-Sea Res. Part II Top. Stud. Oceanogr. 45: 2665–2682. doi:10.1016/S0967-0645(98)00088-5"],"Other":["Funding provided by the National Science Foundation\n\nCrossref Funder Registry ID: https://ror.org/021nxhr62\n\nAward number: 1756402"]} 

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4. Hf-Nd records of polymetamorphic terranes through multiple isotope systems of the Wyoming Province

   https://doi.org/10.60520/ieda/113642  

   Chen, Tsai-Wei; Vervoort, Jeffrey; Baldwin, Julia (January 2027, Interdisciplinary Earth Data Alliance (IEDA))

   This dataset includes Sm-Nd and U-Pb isotope data of apatite, monazite, and titanite obtained by laser ablation multi-collector inductively coupled plasma-mass spectrometry (LA-MC-ICP-MS) and laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS). All data were acquired at Washington State University (WSU), Pullman, Washington, USA, in the Radiogenic Isotope and Geochronology Laboratory (RIGL). 

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5. Depth profile chlorophyll, macronutrient, trace metal, metal speciation, and carbon system data from FeOA project cruise SKQ202209S on the R/V Sikuliaq in the Northeast Pacific between June and July 2022

   https://doi.org/10.26008/1912/bco-dmo.950296.1  

   Buck, Kristen N; Parente, Caitlyn E; Kondo, Yoshiko; Cochlan, William P; Caprara, Salvatore; Takeda, Shigenobu; Trick, Charles; Wells, Mark L; Parente, Caitlyn E; Buck, Kristen N (February 2025, Biological and Chemical Oceanography Data Management Office (BCO-DMO))

   This dataset includes the concentrations of dissolved inorganic macronutrients (phosphate, nitrate plus nitrite (N+N), silicic acid, and nitrite), chlorophyll a and phaeophytin, dissolved trace metals (iron, manganese, nickel, zinc, copper), and labile dissolved nickel, as well as pH and total alkalinity measurements, from discrete depth profile samples collected on the FeOA cruise SKQ202209S on R/V Sikuliaq in the Northeast Pacific from June to July 2022. This project investigates the effects of ocean acidification on the associations between iron and organic ligands in seawater and on iron bioavailability to marine phytoplankton communities. The project used a combination of shipboard incubation experiments and depth profiles to characterize iron speciation and cycling across coastal upwelling, oligotrophic open ocean, and iron-limited subarctic oceanographic regimes in the NE Pacific. Surface seawater was incubated at pH of 8.1, 7.6, and 7.1 with natural iron and with dissolved iron amendments in order to investigate interactions between pH and iron bioavailability across the different regimes. Understanding how pH influences iron and its relationship with ligands provides important information for assessing the impacts of ocean acidification on primary production and biogeochemical processes. 

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