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OAS accession Detail for 0278352
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| accessions_id: | 0278352 | archive |
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| Title: | Porewater nutrient, sulfide, and sulfate concentrations in Alvin pushcore samples collected from Guaymas Basin hydrothermal vents during R/V Atlantis cruise AT42-05 in November 2018 and analyzed at the Max Planck Institute for Marine Microbiology (NCEI Accession 0278352) |
| Abstract: | This dataset contains chemical data collected on Alvin and R/V Atlantis during cruise AT42-05 and deployment AT42-05_Alvin_Dives in the Gulf of California from 2018-11-17 to 2018-11-25. These data include Nitrate, Nitrite, Silicate, reactive phosphorus (PO4), and sulfate. The instruments used to collect these data include Alvin tube core, Ion Chromatograph, Nutrient Autoanalyzer, and Sediment Porewater Sampler. These data were collected by Andreas P. Teske of University of North Carolina at Chapel Hill and Virginia P. Edgcomb of Woods Hole Oceanographic Institution as part of the "Collaborative Research: Hydrothermal Fungi in the Guaymas Basin Hydrocarbon Ecosystem (HOTFUN)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2020-08-24. The following is the text of the dataset description provided by BCO-DMO: Guaymas nutrients (MPI) Dataset Description: Porewater nutrient, sulfide, and sulfate (NH4+, NO2-, NO3-, PO43-, SiO42-, Cl-, S2-, SO24-) concentrations in Alvin pushcore samples from Guaymas Basin hydrothermal vents, R/V Atlantis cruise AT42-05, Nov. 2018. These samples were analyzed at the Max Planck Institute for Marine Microbiology in Bremen, Germany. Porewater samples from this cruise were also reported by Woods Hole Oceanographic Institution (NO3+NO2, NH4, PO4) and the University of North Carolina at Chapel Hill (sulfate and sulfide). See related datasets: https://www.bco-dmo.org/dataset/773129 (WHOI) https://www.bco-dmo.org/dataset/816852 (UNC) |
| Date received: | 20200824 |
| Start date: | 20181117 |
| End date: | 20181125 |
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| West boundary: | -111.407 |
| East boundary: | -111.404 |
| North boundary: | 27.012 |
| South boundary: | 27.007 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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| Supplementary information: | Acquisition Description: This porewater dataset was obtained at the Max-Planck-Institute for Marine Microbiology in Bremen, Germany. The sampling site names in the data are based on Teske et al. 2016. For analyses at the Max-Planck Institute for Marine Microbiology (Gunter Wegener), intact sediment cores were sampled using the Rhizons (Rhizosphere Research Products, Wageningen, NL) as described previously (Seeberg-Elversfeldt et al., 2005). The overlying water was removed from the cores and holes were drilled into designated sediment sampling depths. Pretreated Rhizons were injected and suction was applied with syringes for approx. 30 min. The rhizome depths are given in the dataset (depth_bsf). For sulfide analysis, 1 ml porewater subsamples were fixed with 0.1 ml of 0.1 M zinc acetate solution to preserve the sulfide as zinc sulfide until analysis by the methylene blue method (Cline 1969). The same fixed porewater sample was used for measuring sulfate concentrations using ion chromatography (Metrohm 930 Compact IC flex oven, Metrosep A PCC HC/4.0 preconcentration column, and Metrosep A Supp 5 Guard/4.0 chromatography column). The concentrations of ammonia, nitrite, nitrate, phosphate, and silicate were determined from porewater using a continuous flow nutrient analyzer (QuAAtro39; Seal Analytical) as published previously (Grasshoff et al., 2009). Problem report: Transport problems have caused sample losses among the porewater samples, which are evident in occasional gaps in porewater profiles. |
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| Metadata version: | 1 |
| Keydate: | 2023-05-17 13:02:14+00 |
| Editdate: | 2023-05-17 13:02:48+00 |