http://lod.bco-dmo.org/id/dataset/1010977
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
2026-10-28
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Biomass-derived and Free Biomarker Concentrations in Cores U1545, U1546, and U1547 from R/V JOIDES Resolution IODP Expedition 385 Guaymas Basin Tectonics and Biosphere between September and November 2019
2026-10-29
publication
2026-10-29
revision
BCO-DMO Linked Data URI
2026-10-29
creation
http://lod.bco-dmo.org/id/dataset/1010977
Sunita R. Shah Walter
University of Delaware
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: Wood, L., Shah Walter, S. R. (2026) Biomass-derived and Free Biomarker Concentrations in Cores U1545, U1546, and U1547 from R/V JOIDES Resolution IODP Expedition 385 Guaymas Basin Tectonics and Biosphere between September and November 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-10-29 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/1010977 [access date]
Guaymas Basin Biomass-derived and Free Biomarker Data Dataset Description: Methods and Sampling: <p>Samples were collected by the IODP Expedition 385 Scientific Party aboard the drilling ship JOIDES Resolution. Samples were obtained from IODP cores U1545, U1546, and U1547, which are 52, 51, and 27 kilometers northwest of the axial graben of the northern Guaymas Basin. We analyzed samples from three depth horizons (5-10 mbsf, 26-30 mbsf, and 54-57 mbsf) from U1545 and U1547. Samples from U1546 only contained two depth horizons (26-30 mbsf and 54-57 mbsf).</p>
<p>Cores were drilled using an advanced piston corer (APC) and half-length APC and sectioned by the science party (Teske et al., 2021). Samples were handled and preserved anoxically according to best practices for microbiological studies and stored at -80 degrees Celsius (C) in clean glass jars. After being transferred to the laboratory, frozen samples were thawed and extracted using a modified Bligh and Dyer solvent extraction to account for water content and to preserve intact lipid structures. All extractions were performed with cleaned glassware (combusted at 450 degrees C) or in cleaned Teflon bottles (pre-extracted with solvents). Extracts were separated into three polarity fractions using silica gel chromatography to remove intact polar lipids from the other compound classes. All extracts were then transesterified and re-separated into a fine scale chromatography scheme with 10 polarity fractions to allow for high-resolution analysis.</p>
<p>An Agilent 8890 gas chromatograph (GC) was used with 5977C MSD for identification and a FID for quantification. Samples were injected twice to analyze with both detectors. The GC was equipped with He carrier gas with either an Agilent 60m DB-5ms Ultra Inert column or a Thermo TR-FAME column for each compound class.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2023656 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2023656
onGoing
Sunita R. Shah Walter
University of Delaware
302-645-4262
suni@udel.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Biomarker_ID
Biomarker_Short_ID
Mean_RT
Sample_ID
Concentration
advanced piston corer (APC) and half-length APC
Agilent 8890 gas chromatograph was used with 5977C MSD
theme
None, User defined
compound_name
time_elapsed
sample identification
chemical concentration
featureType
BCO-DMO Standard Parameters
Advanced Piston Corer
Gas Chromatograph
instrument
BCO-DMO Standard Instruments
IODP-385
service
Deployment Activity
Guaymas Basin 27 N 111 W
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.
Hydrothermal and microbial controls on organic carbon mobilization from Guaymas Basin sediments
https://osprey.bco-dmo.org/project/856440
Hydrothermal and microbial controls on organic carbon mobilization from Guaymas Basin sediments
<p><em>NSF award abstract:</em><br />
Organic carbon stored in marine sediments and sedimentary rocks are a critical component of the global carbon cycle. Buried organic carbon balances atmospheric CO2 concentrations over long timescales and is linked to the regulation of Earth’s climate. Microbial activity is a key driver of processes that break down and release carbon from sediments. This project investigates organic carbon in marine sediments and examines its bioavailability to microbes. The setting for the project is the Guaymas Basin of the Gulf of California which receives organic matter inputs from land during seasonal rains and from marine phytoplankton at the sea surface. Guaymas Basin is also a site of active seafloor spreading and hydrothermal heating (i.e., the transfer of heat from magma to sediments and ocean water), which will allow the effects of heating on the bioavailable portion of organic carbon to be investigated. Results from this project will improve our understanding of how microbes reintroduce this buried organic carbon back into the “active” carbon cycle, as well as how this microbial activity is influenced by hydrothermal heating and organic carbon composition. The project also incorporates an international collaboration and an educational cross-border exchange of students between the US and Canada. Results will be shared broadly through videos produced by the Delaware Sea Grant and a content created by the Canadian podcast, Broad Science.</p>
<p>Using the gradients available in the context of Guaymas Basin sediments, we will investigate the effects of hydrothermal heating, burial depth (physical factors), sedimentary organic carbon composition and oxygen availability (geochemical factors) and microbial community (biological factors) on the bioavailability and mobilization/utilization of sedimentary organic carbon. Guaymas Basin features several advantages that make it uniquely suited for our proposed studies including the fact that 150 meters of sediment thickness are within the analytical window of radiocarbon dating which will allow us to take advantage of 14C (radiocarbon) as a natural tracer of marine carbon sources. Large gradients of temperature and geochemistry are also created by widespread emplacement of magmatic sills at varied depths in the sediment column. Such hydrothermal heating transforms sedimentary organic carbon in some locations from freshly synthesized photosynthetic biomass to petroleum hydrocarbons on a compressed, 14C-friendly timescale. Analyses will include: (1) carbon isotopic analysis of biomarkers representative of marine-derived, terrestrial and hydrothermal organic carbon reservoirs within sediments, (2) carbon isotopic measurements on biomolecules representative of natural microbial populations, (3) aerobic bioreactor incubations of sediments with their natural microbial population and analysis of the isotopic composition of CO2 released by respiration, and (4) aerobic bioreactor incubations of sediments that have been pre-heated to promote organic carbon transformations and isotopic analysis of CO2 respired by a bacterial isolate. Our results will provide an exceptionally detailed view of the dependence of organic carbon bioavailability on burial depth, heating history, in situ temperature, oxygen availability, organic carbon composition, and microbial functional capabilities that, to our knowledge, will be unprecedented.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
GuaymasCarbon
largerWorkCitation
project
eng; USA
oceans
Guaymas Basin 27 N 111 W
-111.89
-111.63
27.47
27.66
2019-09-01
2019-11-30
Guaymas Basin
0
BCO-DMO catalogue of parameters from Biomass-derived and Free Biomarker Concentrations in Cores U1545, U1546, and U1547 from R/V JOIDES Resolution IODP Expedition 385 Guaymas Basin Tectonics and Biosphere between September and November 2019
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/1011020.rdf
Name: Biomarker_ID
Units: Unitless
Description: <p>Full name of biomarker</p>
http://lod.bco-dmo.org/id/dataset-parameter/1011021.rdf
Name: Biomarker_Short_ID
Units: Unitless
Description: <p>Shortened name of biomarker</p>
http://lod.bco-dmo.org/id/dataset-parameter/1011022.rdf
Name: Mean_RT
Units: Minutes
Description: <p>Retention time (RT) for biomarker</p>
http://lod.bco-dmo.org/id/dataset-parameter/1011023.rdf
Name: Sample_ID
Units: Unitless
Description: <p>Sample Code, from IODP Sample descriptions</p>
http://lod.bco-dmo.org/id/dataset-parameter/1011024.rdf
Name: Concentration
Units: micrograms per cubic centimeter (ug/cm3)
Description: <p>Quantified concentration of biomarker in sediments for the respective extraction technique. Uncertainty of 0.00014 ug/cm3 per biomarker</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
https://osprey.bco-dmo.org/dataset/1010977/data/download
download
onLine
dataset
<p>Samples were collected by the IODP Expedition 385 Scientific Party aboard the drilling ship JOIDES Resolution. Samples were obtained from IODP cores U1545, U1546, and U1547, which are 52, 51, and 27 kilometers northwest of the axial graben of the northern Guaymas Basin. We analyzed samples from three depth horizons (5-10 mbsf, 26-30 mbsf, and 54-57 mbsf) from U1545 and U1547. Samples from U1546 only contained two depth horizons (26-30 mbsf and 54-57 mbsf).</p>
<p>Cores were drilled using an advanced piston corer (APC) and half-length APC and sectioned by the science party (Teske et al., 2021). Samples were handled and preserved anoxically according to best practices for microbiological studies and stored at -80 degrees Celsius (C) in clean glass jars. After being transferred to the laboratory, frozen samples were thawed and extracted using a modified Bligh and Dyer solvent extraction to account for water content and to preserve intact lipid structures. All extractions were performed with cleaned glassware (combusted at 450 degrees C) or in cleaned Teflon bottles (pre-extracted with solvents). Extracts were separated into three polarity fractions using silica gel chromatography to remove intact polar lipids from the other compound classes. All extracts were then transesterified and re-separated into a fine scale chromatography scheme with 10 polarity fractions to allow for high-resolution analysis.</p>
<p>An Agilent 8890 gas chromatograph (GC) was used with 5977C MSD for identification and a FID for quantification. Samples were injected twice to analyze with both detectors. The GC was equipped with He carrier gas with either an Agilent 60m DB-5ms Ultra Inert column or a Thermo TR-FAME column for each compound class.</p>
Specified by the Principal Investigator(s)
<p>GC-MS were processed using Agilent MassHunter Unknowns Analysis while GC-FID were processed using Agilent MassHunter Qualitative. Identification of biomarkers from GC-MSD were verified using authentic standards and comparison of mass spectra to NIST library.</p>
Specified by the Principal Investigator(s)
This section documents curation actions performed prior to publication review with the submitter, and additional information relevant to understanding and reusing this dataset. It distinguishes changes made to the submitted (meta)data from unresolved issues and/or enhancements that improve future reuse and interoperability.
CURATION ACTIONS PERFORMED ON DATA
- Imported the original file, "Free_IPL_Biomarkers_20260710.csv" into the BCO-DMO data processing system.
- Treated "N.D.", "NA", and "N.D" as missing values (note that missing values are empty/blank in the final CSV file).
- Saved the final file as "1010977_v1_free_ipl_biomarkers.csv".
CURATION ACTIONS PERFORMED ON METADATA
- BCO-DMO's standard metadata entry and text formatting steps were performed. See: https://www.bco-dmo.org/how-to/standard-curation-edits
ISSUES POTENTIALLY IMPACTING REUSE
- The exact date/time and location (latitude, longitude) of collection of each core has not been provided.
Specified by BCO-DMO Data Managers
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
advanced piston corer (APC) and half-length APC
advanced piston corer (APC) and half-length APC
PI Supplied Instrument Name: advanced piston corer (APC) and half-length APC Instrument Name: Advanced Piston Corer Instrument Short Name:APC Instrument Description: The JOIDES Resolution's Advanced Piston Corer (APC) is used in soft ooze and sediments. The APC is a hydraulically actuated piston corer designed to recover relatively undisturbed samples from very soft to firm sediments.
More information is available from IODP (PDF).
Agilent 8890 gas chromatograph was used with 5977C MSD
Agilent 8890 gas chromatograph was used with 5977C MSD
PI Supplied Instrument Name: Agilent 8890 gas chromatograph was used with 5977C MSD 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/
Cruise: IODP-385
IODP-385
R/V JOIDES Resolution
Community Standard Description
International Council for the Exploration of the Sea
R/V JOIDES Resolution
vessel
IODP-385
Daniel Lizarralde
Woods Hole Oceanographic Institution
https://doi.org/10.14379/iodp.pr.385.2020
Report describing IODP-385
R/V JOIDES Resolution
Community Standard Description
International Council for the Exploration of the Sea
R/V JOIDES Resolution
vessel