Dataset: vent chemical composition-Crab Spa
Deployment: AT26-10

Chemical composition of diffuse flow vent fluids collected from Crab Spa, 9N on the East Pacific Rise

Principal Investigator:

Dionysis Foustoukos (Carnegie Institution for Science, CIS)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

An Integrated Study of Energy Metabolism, Carbon Fixation, and Colonization Mechanisms in Chemosynthetic Microbial Communities at Deep-Sea Vents (Microbial Communities at Deep-Sea Vents)

Current State:

Final no updates expected

Version:

2014-09-30

Version Date:

2014-09-30

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/529034/data

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Description

This dataset includes chemical composition (Cl, SO4, Na, K, Mg, and Ca concentrations) of diffuse flow vent fluids collected from the Crab Spa (9.8398º N, 104.2913º W) site at East Pacific Rise during the RV/Atlantic AT26-10 oceanographic expedition, Jan. 2014.

Methods & Sampling

Dataset acquisition description

These samples were collected with Isobaric-Gas-Tight samplers and processed onboard R/V Atlantis. The IGT samplers were deployed by Dr. Jeff Seewald from WHOI. Chemical analysis of the major cation/anion species was conducted at the Geophysical Lab, Carnegie Institution of Washington

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:

added conventional header with dataset name, PI name, version date
added lat, lon, date columns
renamed parameters to BCO-DMO standard
sorted by date
reformated date from m/d/yyyy to yyyy-mm-dd

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1136608	NSF Division of Ocean Sciences

Instruments

Ion Chromatograph

Supplied Description:

Metrohm/Dionex, for cation and anion species.

Instrument Type

Generic Name: Ion Chromatograph

Generic Description:

Ion chromatography is a form of liquid chromatography that measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size. Ion chromatographs are able to measure concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium in the parts-per-billion (ppb) range. (from http://serc.carleton.edu/microbelife/research_methods/biogeochemical/ic.html)

Isobaric Gas-Tight Sampler

Supplied Name: IGT Sampler

Supplied Description:

Instrument Type

Generic Name: Isobaric Gas-Tight Sampler

Acronym: IGT Sampler

Generic Description:

Isobaric Gas Tight (IGT) samplers, designed and built by scientists and engineers at WHOI, are titanium instruments designed to be used with deep submergence vehicles to sample corrosive hydrothermal vent fluids at high temperature and high pressure. The IGT prevents the sampled fluid from degassing as pressure decreases during the vehicle’s ascent to the surface.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
date	sampling date. Format: YYYY-MM-DD	unitless	date
site	sample location	unitless	site
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
sample	sample identification	unitless	sample
Cl	chloride ion concentration	mmoles/kg	no_bcodmo_term
Cl_stdev	chloride ion concentration standard deviation	mmoles/kg	std_dev
SO4	sulfate concentration	mmoles/kg	SO4
SO4_stdev	sulfate concentration standard deviation	mmoles/kg	std_dev
Na	sodium ion concentration	mmoles/kg	Na
K	potassium ion concentration	mmoles/kg	K
Mg	magnesium ion concentration	mmoles/kg	Mg
Ca	calcium ion concentration	mmoles/kg	Ca
depth	depth where sample was taken	meters	depth

Database

Contribute Data

Dataset: vent chemical composition-Crab Spa
Deployment: AT26-10

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: vent chemical composition-Crab SpaDeployment: AT26-10

Dataset acquisition description

Dataset Processing Description

Dataset: vent chemical composition-Crab Spa
Deployment: AT26-10