Dataset: vent chemical composition-Crab Spa

Name: Chemical composition of diffuse flow vent fluids collected from the Crab Spa site at East Pacific Rise during the AT26-10 oceanographic expedition, Jan. 2014 (Microbial Communities at Deep-Sea Vents project)
Published: 2014-10-01
Keywords: hydrothermal vents, East Pacific Rise, Crab Spa, high-pressure incubations, piezophiles, nitrate, oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.682102

Spatial Extent: N:9.83992 E:-104.2915 S:9.83992 W:-104.2915

Temporal Extent: 2014-01-03 - 2014-01-12

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)

Program:

Dimensions of Biodiversity (Dimensions of Biodiversity)

Center for Dark Energy Biosphere Investigations (C-DEBI)

Principal Investigator:

Dionysis Foustoukos (Carnegie Institution for Science, CIS)

BCO-DMO Data Manager:

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

Version:

2014-10-01

Version Date:

2014-10-01

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Chemical composition of diffuse flow vent fluids collected from the Crab Spa site at East Pacific Rise during the AT26-10 oceanographic expedition, Jan. 2014 (Microbial Communities at Deep-Sea Vents project)

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2014-10-01	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.682102	2017-02-13

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

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

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

Data Files

File
crab_spa_chem.csv (Comma Separated Values (.csv), 1.17 KB) MD5:21be896f3b4f62b61d20e5517c903efd Primary data file for dataset ID 529026

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT26-10		2013-12-29	R/V Atlantis	Stefan M. Sievert (Chief Scientist)	data info

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

Date and time formats are described in python strftime() syntax.

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

Database

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Dataset: vent chemical composition-Crab Spa