Sediment pore water and solid phase geochemical analyses from samples collected on R/V Savannah cruise SAV-15-18 at the Cape Lookout Continental Shelf and Slope during July 2015 (NCEI Accession 0277822)
This dataset contains chemical data collected on R/V Savannah during cruise SAV-15-18 in the North Atlantic Ocean from 2015-07-08 to 2015-07-20. These data include dissolved inorganic Carbon, reactive phosphorus (PO4), and sulfate. The instruments used to collect these data include Flow Injection Analyzer, High Performance Liquid Chromatograph, Multi Corer, and Spectrophotometer. These data were collected by Martial Taillefert of Georgia Institute of Technology as part of the "Source, Composition, and Stability of Soluble Iron Fluxing from Continental Margin Sediments (Soluble Fe Fluxing)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2020-01-21.
The following is the text of the dataset description provided by BCO-DMO:
Sediment pore water and solid phase geochemical analyses
Dataset Description:
Acquisition Description:
Sediments were collected and profiled immediately with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator (Beckler et al., 2016). Sediment pore waters were then extracted from the same core and either preserved until analysis or analyzed immediately onboard ship. Sampling and analyses were conducted immediately after sediment collection to minimize artifacts from exposure to the atmosphere.
Sediment cores were obtained by a MC-800 multi-corer and profiled within 30 minutes with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator. After profiling, sediments were immediately sliced under N₂ atmosphere and pore waters extracted by centrifugation at 3000 rpm under N₂ atmosphere. Finally, pore waters were immediately filtered (0.2 µM PSE Puradisc syringe filters, Whatman) under N₂ atmosphere and either preserved at -20C until analysis (SO₄²⁻), dispensed directly into reagents for analysis (SPO₄³⁻), or analyzed immediately (DIC). SO₄²⁻ was measured by non-suppressed HPLC with UV detection (Beckler et al., 2014). SPO₄³⁻ was measured spectrophotometrically using the molybdate-blue method after natural color correction to avoid interferences from dissolved silica and sulfides (Murphy and Riley, 1962). Finally, DIC was measured by flow injection analysis with conductivity detection after spiking samples with 10 mM ZnCl₂ to prevent dissolved sulfide interferences (Hall and Aller, 1992). All errors reported for the electrochemical measurements represent the standard deviation of at least triplicate measurements. Errors of all other parameters represent the analytical error propagated from calibration curves, dilution, and instrumental drift.
Problem report: Some of the data are missing because pore water volumes were too low to make all the measurements.
The following is the text of the dataset description provided by BCO-DMO:
Sediment pore water and solid phase geochemical analyses
Dataset Description:
Acquisition Description:
Sediments were collected and profiled immediately with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator (Beckler et al., 2016). Sediment pore waters were then extracted from the same core and either preserved until analysis or analyzed immediately onboard ship. Sampling and analyses were conducted immediately after sediment collection to minimize artifacts from exposure to the atmosphere.
Sediment cores were obtained by a MC-800 multi-corer and profiled within 30 minutes with voltammetric Hg/Au microelectrodes deployed on a computer-controlled micromanipulator. After profiling, sediments were immediately sliced under N₂ atmosphere and pore waters extracted by centrifugation at 3000 rpm under N₂ atmosphere. Finally, pore waters were immediately filtered (0.2 µM PSE Puradisc syringe filters, Whatman) under N₂ atmosphere and either preserved at -20C until analysis (SO₄²⁻), dispensed directly into reagents for analysis (SPO₄³⁻), or analyzed immediately (DIC). SO₄²⁻ was measured by non-suppressed HPLC with UV detection (Beckler et al., 2014). SPO₄³⁻ was measured spectrophotometrically using the molybdate-blue method after natural color correction to avoid interferences from dissolved silica and sulfides (Murphy and Riley, 1962). Finally, DIC was measured by flow injection analysis with conductivity detection after spiking samples with 10 mM ZnCl₂ to prevent dissolved sulfide interferences (Hall and Aller, 1992). All errors reported for the electrochemical measurements represent the standard deviation of at least triplicate measurements. Errors of all other parameters represent the analytical error propagated from calibration curves, dilution, and instrumental drift.
Problem report: Some of the data are missing because pore water volumes were too low to make all the measurements.
Dataset Citation
- Cite as: Taillefert, Martial (2023). Sediment pore water and solid phase geochemical analyses from samples collected on R/V Savannah cruise SAV-15-18 at the Cape Lookout Continental Shelf and Slope during July 2015 (NCEI Accession 0277822). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0277822. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0277822
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2015-07-08 to 2015-07-20 |
Spatial Bounding Box Coordinates |
West: -76.434
East: -75.806
South: 33.871
North: 34.266
|
Spatial Coverage Map |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
Use Limitations |
|
Dataset Citation |
|
Cited Authors | |
Principal Investigators | |
Contributors | |
Resource Providers | |
Points of Contact | |
Publishers | |
Acknowledgments |
Theme keywords |
NODC DATA TYPES THESAURUS
NODC OBSERVATION TYPES THESAURUS
WMO_CategoryCode
|
Data Center keywords | NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords |
Platform keywords | NODC PLATFORM NAMES THESAURUS BCO-DMO Platform Names Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes |
Instrument keywords |
NODC INSTRUMENT TYPES THESAURUS
BCO-DMO Standard Instruments
Global Change Master Directory (GCMD) Instrument Keywords
|
Place keywords | NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names |
Project keywords | BCO-DMO Standard Projects Provider Cruise IDs Provider Funding Award Information |
Keywords | NCEI ACCESSION NUMBER |
Use Constraints |
|
Data License | |
Access Constraints |
|
Fees |
|
Lineage information for: dataset | |
---|---|
Processing Steps |
|
Output Datasets |
|
Acquisition Information (collection) | |
---|---|
Instrument |
|
Platform |
|
Last Modified: 2024-05-31T15:15:28Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov