http://lod.bco-dmo.org/id/dataset/842974
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2021-03-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Porewater methane concentrations and d13C-CH4 values in Alvin pushcore samples from Guaymas Basin hydrothermal sediments collected on R/V Atlantis cruise AT37-06 in December 2016
2021-03-11
publication
2021-03-11
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-03-12
publication
https://doi.org/10.26008/1912/bco-dmo.842974.1
Andreas Teske
University of North Carolina at Chapel Hill
principalInvestigator
Samantha B. Joye
University of Georgia
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Teske, A., Joye, S. B. (2021) Porewater methane concentrations and d13C-CH4 values in Alvin pushcore samples from Guaymas Basin hydrothermal sediments collected on R/V Atlantis cruise AT37-06 in December 2016. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-03-11 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.842974.1 [access date]
Guaymas porewater methane Dataset Description: Methods and Sampling: <p><strong>Methodology:</strong> Porewater Methane concentrations were determined by headspace Gas Chromatography - flame ionization detection, and d13C signatures of methane were determined by Gas Chromatography coupled to Mass Spectrometry, using a Finnigan MAT Delta S isotope ratio Mass Spectrometer inlet system.</p>
<p><strong>Sampling and Analytical Procedures:</strong> For combined concentration and δ<sup>13</sup>C analysis of methane, 2 ml sediment subsamples were added to 30 ml serum vials containing 2 ml of 1 M sodium hydroxide solution, sealed with thick butyl rubber stoppers, crimped with aluminum seals and stored at 4°C. Due to shipping problems and a resulting shortage of serum vials, only selected sediment cores were sampled for methane. Since cores were retrieved unpressurized, outgassing may have impacted in particular the measurements of methane concentrations near and above saturation, 1.5 mM. After the cruise, the methane samples were analyzed by headspace gas chromatography-flame ionization detection (GC-FID) at Florida State University (Magen et al., 2014). Gas samples were analyzed for δ<sup>13</sup>C by injecting 0.1 to 0.5 ml of sample into a gas chromatograph interfaced to a Finnigan MAT Delta S isotope ratio Mass Spectrometer inlet system as previously described (Chanton and Liptay 2000). Values are reported in the per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB).&nbsp;Sampling site names are based on Teske et al. 2016 and Teske et al. 2021.</p>
<p><strong>Known Problems/Issues</strong>: Problems with Mexican customs and the agent used by WHOI at the time have resulted in limited availability of sampling gear and sampling vials on the ship. Transport problems during the return trip have caused sample losses among the porewater samples, which are evident in occasional gaps in porewater profiles or short profiles.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1357238 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1357238
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1357360 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1357360
completed
Andreas Teske
University of North Carolina at Chapel Hill
508-287-1648
Department of Marine Sciences 3117B Venable Hall, CB 3300
Chapel Hill
NC
27599
USA
teske@email.unc.edu
pointOfContact
Samantha B. Joye
University of Georgia
706-542-5893
Dept. of Marine Sciences 325 Sanford Drive
Athens
GA
30602
USA
mjoye@uga.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Site_Name
Site
Depth_Dive
Lat
Lon
Depth
del_CH4
del_CH4_Std_Dev
Conc_CH4_pcnt
Conc_CH4_ppm
Conc_CH4_mM
Finnigan MAT Delta S isotope ratio Mass Spectrometer
Alvin pushcore
theme
None, User defined
site
depth
latitude
longitude
depth core
methane
featureType
BCO-DMO Standard Parameters
Flame Ionization Detector
Gas Chromatograph
Isotope-ratio Mass Spectrometer
Push Corer
instrument
BCO-DMO Standard Instruments
AT37-06
AT37-06_Alvin_Dives
service
Deployment Activity
Guaymas Basin
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Collaborative Research: Microbial Carbon cycling and its interactions with Sulfur and Nitrogen transformations in Guaymas Basin hydrothermal sediments
https://osprey.bco-dmo.org/project/474317
Collaborative Research: Microbial Carbon cycling and its interactions with Sulfur and Nitrogen transformations in Guaymas Basin hydrothermal sediments
<p><em>Description from NSF award abstract:</em><br />
Hydrothermally active sediments in the Guaymas Basin are dominated by novel microbial communities that catalyze important biogeochemical processes in these seafloor ecosystems. This project will investigate genomic potential, physiological capabilities and biogeochemical roles of key uncultured organisms from Guaymas sediments, especially the high-temperature anaerobic methane oxidizers that occur specifically in hydrothermally active sediments (ANME-1Guaymas). The study will focus on their role in carbon transformations, but also explore their potential involvement in sulfur and nitrogen transformations. First-order research topics include quantifying anaerobic methane oxidation under high temperature,in situ concentrations of phosphorus and methane , and with alternate electron acceptors; sulfate and sulfur-dependent microbial pathways and isotopic signatures under these conditions; and nitrogen transformations in methane-oxidizing microbial communities, hydrothermal mats and sediments.</p>
<p>This integrated biogeochemical and microbiological research will explore the pathways of and environmental controls on the consumption and production of methane, other alkanes, inorganic carbon, organic acids and organic matter that fuel the Guaymas sedimentary microbial ecosystem. The hydrothermal sediments of Guaymas Basin provide a spatially compact, high-activity location for investigating novel modes of methane cycling and carbon assimilation into microbial biomass. In the case of anaerobic methane oxidation, the high temperature and pressure tolerance of Guaymas Basin methane-oxidizing microbial communities, and their potential to uncouple from the dominant electron acceptor sulfate, vastly increase the predicted subsurface habitat space and biogeochemical role for anaerobic microbial methanotrophy in global deep subsurface diagenesis. Further, microbial methane production and oxidation interlocks with syulfur and nitrogen transformations, which will be explored at the organism and process level in hydrothermal sediment microbial communities and mats of Guaymas Basin. In general, first-order research tasks (rate measurements, radiotracer incorporation studies, genomes, in situ microgradients) define the key microbial capabilities, pathways and processes that mediate chemical exchange between the subsurface hydrothermal/seeps and deep ocean waters.</p>
Guaymas Basin Interactions
largerWorkCitation
project
eng; USA
oceans
Guaymas Basin
-111
-111
27
27
2016-12-09
2016-12-27
Guaymas Basin, Gulf of California, 27.00 N, 111.00W
0
BCO-DMO catalogue of parameters from Porewater methane concentrations and d13C-CH4 values in Alvin pushcore samples from Guaymas Basin hydrothermal sediments collected on R/V Atlantis cruise AT37-06 in December 2016
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/844854.rdf
Name: Site_Name
Units: unitless
Description: <p>Site/location name</p>
http://lod.bco-dmo.org/id/dataset-parameter/844855.rdf
Name: Site
Units: unitless
Description: <p>Site number</p>
http://lod.bco-dmo.org/id/dataset-parameter/844856.rdf
Name: Depth_Dive
Units: meters (m)
Description: <p>Depth of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/844857.rdf
Name: Lat
Units: decimal degrees North
Description: <p>Latitude of sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/844858.rdf
Name: Lon
Units: decimal degrees East
Description: <p>Longitude of sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/844859.rdf
Name: Depth
Units: centimeters (cm)
Description: <p>Core depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/844860.rdf
Name: del_CH4
Units: per mil
Description: <p>delCH4</p>
http://lod.bco-dmo.org/id/dataset-parameter/844861.rdf
Name: del_CH4_Std_Dev
Units: per mil
Description: <p>Standard deviation of del_CH4</p>
http://lod.bco-dmo.org/id/dataset-parameter/844862.rdf
Name: Conc_CH4_pcnt
Units: percent (%)
Description: <p>CH4 concentration, percent</p>
http://lod.bco-dmo.org/id/dataset-parameter/844863.rdf
Name: Conc_CH4_ppm
Units: parts per million (ppm)
Description: <p>CH4 concentration, parts per million</p>
http://lod.bco-dmo.org/id/dataset-parameter/844864.rdf
Name: Conc_CH4_mM
Units: millimolar (mM)
Description: <p>CH4 concentration, millimolar</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
6333
https://darchive.mblwhoilibrary.org/bitstream/1912/26798/1/dataset-842974_guaymas-porewater-methane__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.842974.1
download
onLine
dataset
<p><strong>Methodology:</strong> Porewater Methane concentrations were determined by headspace Gas Chromatography - flame ionization detection, and d13C signatures of methane were determined by Gas Chromatography coupled to Mass Spectrometry, using a Finnigan MAT Delta S isotope ratio Mass Spectrometer inlet system.</p>
<p><strong>Sampling and Analytical Procedures:</strong> For combined concentration and δ<sup>13</sup>C analysis of methane, 2 ml sediment subsamples were added to 30 ml serum vials containing 2 ml of 1 M sodium hydroxide solution, sealed with thick butyl rubber stoppers, crimped with aluminum seals and stored at 4°C. Due to shipping problems and a resulting shortage of serum vials, only selected sediment cores were sampled for methane. Since cores were retrieved unpressurized, outgassing may have impacted in particular the measurements of methane concentrations near and above saturation, 1.5 mM. After the cruise, the methane samples were analyzed by headspace gas chromatography-flame ionization detection (GC-FID) at Florida State University (Magen et al., 2014). Gas samples were analyzed for δ<sup>13</sup>C by injecting 0.1 to 0.5 ml of sample into a gas chromatograph interfaced to a Finnigan MAT Delta S isotope ratio Mass Spectrometer inlet system as previously described (Chanton and Liptay 2000). Values are reported in the per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB).&nbsp;Sampling site names are based on Teske et al. 2016 and Teske et al. 2021.</p>
<p><strong>Known Problems/Issues</strong>: Problems with Mexican customs and the agent used by WHOI at the time have resulted in limited availability of sampling gear and sampling vials on the ship. Transport problems during the return trip have caused sample losses among the porewater samples, which are evident in occasional gaps in porewater profiles or short profiles.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing:</strong><br />
- added Site_Name column;<br />
- renamed columns to comply with BCO-DMO naming conventions;<br />
- added columns for Lat, Lon, and Depth_Dive from separate file provided by data submitter.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
PI Supplied Instrument Name: PI Supplied Instrument Description:Methane samples were analyzed by headspace gas chromatography-flame ionization detection (GC-FID). Instrument Name: Flame Ionization Detector Instrument Short Name:FID Instrument Description: A flame ionization detector (FID) is a scientific instrument that measures the concentration of organic species in a gas stream. It is frequently used as a detector in gas chromatography. Standalone FIDs can also be used in applications such as landfill gas monitoring, fugitive emissions monitoring and internal combustion engine emissions measurement in stationary or portable instruments.
PI Supplied Instrument Name: PI Supplied Instrument Description:Methane samples were analyzed by headspace gas chromatography-flame ionization detection (GC-FID). Instrument Name: Gas Chromatograph Instrument Short Name:Gas Chromatograph Instrument Description: Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB02/
Finnigan MAT Delta S isotope ratio Mass Spectrometer
Finnigan MAT Delta S isotope ratio Mass Spectrometer
PI Supplied Instrument Name: Finnigan MAT Delta S isotope ratio Mass Spectrometer Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Alvin pushcore
Alvin pushcore
PI Supplied Instrument Name: Alvin pushcore Instrument Name: Push Corer Instrument Short Name: Instrument Description: Capable of being performed in numerous environments, push coring is just as it sounds. Push coring is simply pushing the core barrel (often an aluminum or polycarbonate tube) into the sediment by hand. A push core is useful in that it causes very little disturbance to the more delicate upper layers of a sub-aqueous sediment.
Description obtained from: http://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/
Cruise: AT37-06
AT37-06
R/V Atlantis
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis
vessel
AT37-06
Andreas Teske
University of North Carolina at Chapel Hill
https://datadocs.bco-dmo.org/d3/data_docs/GuaymasBasin_Interactions/AT37-06_CruiseReport.pdf
Report describing AT37-06
Deployment: AT37-06_Alvin_Dives
AT37-06_Alvin_Dives
HOV Alvin
Community Standard Description
International Council for the Exploration of the Sea
HOV Alvin
submarine-manned
AT37-06_Alvin_Dives
Andreas Teske
University of North Carolina at Chapel Hill
https://datadocs.bco-dmo.org/d3/data_docs/GuaymasBasin_Interactions/AT37-06_CruiseReport.pdf
Report describing AT37-06_Alvin_Dives
R/V Atlantis
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis
vessel
HOV Alvin
Community Standard Description
International Council for the Exploration of the Sea
HOV Alvin
submarine-manned