Dataset: Guaymas Basin 2014 Sulfide
Deployment: Guaymas_2014

Porewater sulfide concentrations from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin in 2014

Principal Investigator:

Andreas Teske (University of North Carolina at Chapel Hill, UNC-Chapel Hill)

Co-Principal Investigator:

Ivano Aiello (Moss Landing Marine Laboratories, MLML)

Ana Christina Ravelo (University of California-Santa Cruz, UCSC)

Contact:

Andreas Teske (University of North Carolina at Chapel Hill, UNC-Chapel Hill)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Characterizing subseafloor life and environments in the Guaymas Basin (C-DEBI Guaymas Subseafloor Life)

RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin (RAPID Guaymas Basin)

Current State:

Final no updates expected

Version:

14 Oct 2016

Version Date:

2016-10-14

Data URL:

https://www.bco-dmo.org/dataset-deployment/661818/data

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Description

Porewater sulfide concentrations from sediment cores P3, P6, P10, P11, P12 and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

Methods & Sampling

Dataset acquisition description

Spectrophotometric analysis of porewater for sulfide concentrations was performed in the Teske lab using the methylene blue method (Cline, 1969).

References:
Cline, JD. (1969) Spectrophotometric determination of hydrogen sulfide in natural waters. Limnol Oceanogr 14: 454 – 458. doi:10.4319/lo.1969.14.3.0454

Data Processing Description

Dataset Processing Description

The data were measured by using sulfide standard curves. When necessary, extremely sulfide-rich samples were diluted to fall into the range of the standard curve.

BCO-DMO Processing:
- created a column for core number;
- added lat, lon, and depth for each core from the metadata form;
- modified parameter names to conform with BCO-DMO naming conventions.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0939564	NSF Division of Ocean Sciences
OCE-1449604	NSF Division of Ocean Sciences

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
core	Core identifier	unitless	core_id
lat	Latitude of sampling location; postive = north	decimal degrees	lat
lon	Longitude of sampling location; negative = west	decimal degrees	lon
depth	Water depth at sampling location	meters	depth_w
core_sample	Identifier for the core sample	unitless	sample
actual_depth	Sample depth, within the core	centimeters (cm)	depth_core
sulfide_uM	Sulfide concentration	micromolar (uM)	sulfide
sulfide_uM_repeat	Repeat measurement of sulfide concentration (core P10 only)	micromolar (uM)	sulfide

Database

Contribute Data

Dataset: Guaymas Basin 2014 Sulfide
Deployment: Guaymas_2014

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Guaymas Basin 2014 SulfideDeployment: Guaymas_2014

Dataset acquisition description

Dataset Processing Description

Dataset: Guaymas Basin 2014 Sulfide
Deployment: Guaymas_2014