Dataset: Minor Ion Concentrations

Name: Minor ion concentrations in OsmoSamplers that were recovered on R/V Atlantis Expedition AT39-01 with the ROV Jason-II (Depart October 2, 2018 and returned 11/2/2017).
Published: 2020-08-28
Keywords: OsmoSampler, Ridge Flank, hydrothermal, North Pond, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.820188.1

Spatial Extent: N:22.802213 E:-46.052593 S:22.7520683 W:-46.081516

Temporal Extent: 2011-10-11 - 2017-10-20

Project:

Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust (North Pond 2017)

Program:

Center for Dark Energy Biosphere Investigations (C-DEBI)

Principal Investigator:

C. Geoffrey Wheat (University of Alaska Fairbanks, UAF)

Contact:

C. Geoffrey Wheat (University of Alaska Fairbanks, UAF)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-08-28

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Minor ion concentrations in OsmoSamplers that were recovered on R/V Atlantis Expedition AT39-01 with the ROV Jason-II (Depart October 2, 2018 and returned 11/2/2017).

Abstract:

Minor ion concentrations in OsmoSamplers that were recovered on R/V Atlantis Expedition AT39-01 with the ROV Jason-II (Depart October 2, 2018 and returned 11/2/2017).

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-08-28	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.820188.1	2020-10-14

Description

These data will be submitted in Orcutt et al.: “Subsurface oceanic crust microbe-mineral biogeography from multi-year incubations at North Pond, Mid-Atlantic Ridge”

Similar, relevant data were published in Wheat et al., 2020.

OsmoSampler descriptions:

NP 2017 1383 B Acid-Addition OsmoSampler was deployed in IODP Hole 1383B on 4/22/12, removed from the borehole on 10/21/17 (J2-1032), and recovered on the ship on 10/22/17 (J2-1033). The pump worked as planned.
1383 C blue Acid-Addition OsmoSampler was deployed on the wellhead at IODP Hole 1383C on 4/08/14 (J2-771) and recovered on 10/21/17 (J2-1032). This sampler pumped more than expected, resulting in a salinity of 46 per mil in the fresh water reservoir. The timeline was adjusted for the excess pumping.
1383 C black Acid-Addition OsmoSampler was deployed on the wellhead of IODP Hole 1383C on 4/08/14 (J2-771) and recovered on 10/21/17 (J2-1032). This sampler pumped more than expected, resulting in a salinity of 24 per mil in the fresh water reservoir. The timeline was adjusted for excess pumping.
1383 C upper Acid-Addition osmoSampler was deployed in Hole U1383C on 11/6/11 and recovered on 10/16/17 (J2-1030). This sampler pumped more than expected, resulting in a salinity of 10 per mil in the fresh water reservoir. The timeline was adjusted for the excess pumping.
1382 A green Acid-Addition OsmoSampler was deployed on the wellhead of IODP Hole 1382A on 4/08/14 (J2-771) and recovered on 10/23/17 (J2-1028). This sampler pumped more than expected, resulting in a salinity of 71 per mil in the fresh water reservoir. The timeline was adjusted for the excess pumping.
Acid was added to four of the five sample streams. The exception was the 1382A Green Acid-Addition Osmosampler. Concentrations account for the addition of acid (HCl).
Hole U1383B downhole (DH) MBIO1 FLOCS OsmoSampler minor ion concentrations. The sampler was deployed on 4/22/12, removed from the borehole on 10/21/17, and recovered on 10/22/17. The pump worked as planned.
Hole U1383B downhole (DH) MBIO2 FLOCS OsmoSampler minor ion concentrations. The sampler was deployed on 4/22/12, removed from the borehole on 10/21/17, and recovered on 10/22/17. The pump worked as planned.
Hole U1383B downhole (DH) ENRICH FLOCS OsmoSampler minor ion concentrations. The ampler was deployed on 4/22/12, removed from the borehole on 10/21/17, and recovered on 10/22/17. The pump worked as planned.
Hole U1383C upper downhole (DH) MBIO FLOCS OsmoSampler minor ion concentrations. The sampler was deployed on 11/6/11. Samplers were recovered on 10/16/17. This sampler pumped more than expected, resulting in a salinity of 24 per mil in the fresh water reservoir. An additional 168 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C lower downhole (DH) MBIO FLOCS OsmoSampler minor ion concentrations. The sampler was deployed on 11/6/11. Samplers were recovered on 10/16/17. This sampler pumped more than expected, resulting in a salinity of 40 per mil in the fresh water reservoir. An additional 279 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C downhole (DH) upper enrichment OsmoSampler minor ion concentrations. The sampler was deployed on 11/6/11 and recovered on 10/16/17. This sampler pumped more than expected, resulting in a salinity of 27 per mil in the fresh water reservoir. An additional 188 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) Blue JP FLOCS OsmoSampler minor ion concentrations. This Sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity o 33 per mil in the fresh water reservoir. An additional 255 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) Blue Orcutt FLOCS OsmoSampler minor ion concentrations. This Sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity o 35 per mil in the fresh water reservoir. An additional 271 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) JP middle horizon "black" FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity o 33 per mil in the fresh water reservoir. An additional 255 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) Orcutt middle horizon "black" FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity o 28 per mil in the fresh water reservoir. An additional 217 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) shallow horizon JP "red" FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity of more than 100 per mil in the fresh water reservoir. This additional fluid was not considered in the time estimate.
Hole U1383C wellhead (WH) shallow horizon Orcutt "red" FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity of more than 100 per mil in the fresh water reservoir. This additional fluid was not considered in the time estimate.
Hole U1382A downhole (DH) upper MBIO FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 10/11/11 and recovered on 10/20/17. The pump worked as planned.
Hole U1382A downhole (DH) lower MBIO FLOCS OsmoSampler minor ion concentrations. This sampler was deployed on 10/11/11 and recovered on 10/20/17. This pump worked as planned.
Hole U1382A wellhead (WH) green JP FLOCS OsmoSampler minor ion concentrations. Samplers deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity o 35 per mil in the fresh water reservoir. An additional 271 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.
Hole U1382A wellhead (WH) green Orcutt FLOCS OsmoSampler minor ion concentrations. Samplers deployed on 4/08/14 (J2-771) and recovered on 10/20/17. This sampler pumped more than expected, resulting in a salinity fo 45 per mil in the fresh water reservoir. An additional 349 ml of borehole fluid was pulled into the pump. This additional fluid was not considered in the time estimate.

Methods & Sampling

Once on deck, OsmoSamplers were sectioned. Individual coils of Teflon tubing (each ~300 m long) were removed, sealed, and labeled. Each coil was then sectioned into 1.2 m lengths and the fluid expelled into acid washed (60C for 14 hours in 10%HCl) and rinsed (18 mega ohm water) micro centrifuge tubes. Centrifuge tubes were labeled and packaged for shipment.

In the laboratory aliquots from these centrifuge tubes were diluted before being analyzed using an inductively coupled plasma optical emission spectrometer (ICPOES). In addition the fresh water reservoir for each of the OsmoSampler pumps was analyzed for salinity to asses if the samplers over pumped and if so, by how much.

Additional descriptions for the recovered samplers can be found at Edwards et al. (2012) and Wheat et al. (2011).

Data Processing Description

Fluids were analyzed with an inductively coupled plasma optical emission spectrometer (ICPOES) as described in Wheat et al. (2020). Analytical precision is listed as 2%, but individual runs were ofter lower.

BCO-DMO processing notes:

Reformatted table structure to flat file format
Adjusted column names to comply with database requirements
Adjusted date format to yyyy-mm-dd
Added latitude and longitude of samples

Data Files

File
ion_concentrations.csv (Comma Separated Values (.csv), 55.58 KB) MD5:f8a0b9f52a82dd3756592ced50e90564 Primary data file for dataset ID 820188

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1634025

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT39-01	North Pond 2017	2017-10-02	R/V Atlantis	C. Geoffrey Wheat (Chief Scientist)	data info

Instruments

Inductively Coupled Plasma Optical Emission Spectrometer

Supplied Name: ICPOES

Supplied Description:

Instrument Type

Generic Name: Inductively Coupled Plasma Optical Emission Spectrometer

Acronym: ICP-OES or ICP-AES

Generic Description:

Also referred to as an Inductively coupled plasma atomic emission spectroscope (ICP-AES). These instruments pass nebulised samples into an inductively-coupled gas plasma (8-10000 K) where they are atomised and excited. The de-excitation optical emissions at characteristic wavelengths are spectroscopically analysed. It is often used in the detection of trace metals.

ROV Jason

Supplied Name: ROV Jason-II

Supplied Description:

OsmoSamplers that were recovered on R/V Atlantis Expedition AT39-01 with the ROV Jason-II

Instrument Type

Generic Name: ROV Jason

Generic Description:

The Remotely Operated Vehicle (ROV) Jason is operated by the Deep Submergence Laboratory (DSL) at Woods Hole Oceanographic Institution (WHOI). WHOI engineers and scientists designed and built the ROV Jason to give scientists access to the seafloor that didn't require them leaving the deck of the ship. Jason is a two-body ROV system. A 10-kilometer (6-mile) fiber-optic cable delivers electrical power and commands from the ship through Medea and down to Jason, which then returns data and live video imagery. Medea serves as a shock absorber, buffering Jason from the movements of the ship, while providing lighting and a bird’s eye view of the ROV during seafloor operations. During each dive (deployment of the ROV), Jason pilots and scientists work from a control room on the ship to monitor Jason’s instruments and video while maneuvering the vehicle and optionally performing a variety of sampling activities. Jason is equipped with sonar imagers, water samplers, video and still cameras, and lighting gear. Jason’s manipulator arms collect samples of rock, sediment, or marine life and place them in the vehicle’s basket or on "elevator" platforms that float heavier loads to the surface. More information is available from the operator site at URL.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Borehole_type_coil	Borehole, type and coil	unitless	sample_descrip
Sample_number	Sample number	unitless	sample_descrip
Date	Samling data in ISO format (yyyy-mm-dd)	unitless	date
Ba	Barium (Ba) concentration	micromoles per kg (umol/kg)	Ba
B	Boron (B) concentration	micromoles per kg (umol/kg)	B
Mn	Manganese (Mn) concentration	micromoles per kg (umol/kg)	Mn
Fe	Iron (Fe) concentration	micromoles per kg (umol/kg)	Fe
Li	Lithium (Li) concentration	micromoles per kg (umol/kg)	Li
Si	Silicon (Si) concentration	micromoles per kg (umol/kg)	Si
Longitude	Sampling location - longitude, west is negative	decimal degrees	lon
Latitude	Sampling location - latitude, south is negative	decimal degrees	lat

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Dataset: Minor Ion Concentrations