ERDDAP > info > bcodmo_dataset_780225

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	[AT39-01 CathodicEET Experiment Metadata] - Metadata for cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01 (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)		F   I   M	background			BCO-DMO	bcodmo_dataset_780225

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	access_formats	String	.htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute	NC_GLOBAL	acquisition_description	String	Samples for this study come from CORK observatories installed at IODP Holes U1382A and U1383C as described elsewhere (Edwards et al., 2012b). In brief, instrument strings containing OsmoSampler systems (Wheat et al., 2011) were deployed at different depths within the holes from 2011-2017. Additional OsmoSampler systems were deployed at the wellhead of the CORKs in 2014 and were inoculated with bottom seawater, making them useful for identifying differences between crustal subsurface and bottom seawater inoculated microbial communities. OsmoSampler systems included Flow-through Osmo Colonization Systems (FLOCS) for mineral colonization experiments, as described elsewhere (Ramrez et al., 2019). Each FLOCS contained sterile (autoclaved and ethanol-rinsed) substrates including crushed basalts, pyrite, pyrrhotite, or inert glass beads housed within polycarbonate cassettes and sleeves. Fluids were introduced into the FLOCS via the OsmoSampler pumps, allowing fluid microbial communities to colonize the substrates. All FLOCS were recovered in October 2017 during cruise AT39-01 of the RV Atlantis with the ROV Jason (Woods Hole Oceanographic Institution) following methods described elsewhere (Ramrez et al., 2019). In brief, the instrument strings with the downhole FLOCS were pulled up to the ship on a wire, then immediately disassembled to store the FLOCS in a cold room. Wellhead FLOCS incubated in milkcrates attached to crustal fluid umbilicals at the seafloor were also collected on this cruise with the ROV. FLOCS contents were distributed inside an ethanol-rinsed and UV-irradiated HEPA-filtered hood using sterile instruments. Substrates for the experiment were stored cold (2-4C) and in the dark in sterile centrifuge tubes with ultrafiltered (0.22 m-mesh Millipore Sterivex and 0.02 m-mesh Whatman Anotop 25 filters) crustal fluid until incubation at the shore-based laboratory. Parallel samples for initial characterization of the substrate biofilms were transferred to sterile cyrovials, flash frozen with liquid nitrogen, and stored at -80C until analysis. In addition to the FLOCS samples, 4-10L samples of raw and unfiltered crustal fluids were collected into ethanol-rinsed cubitainers after collection into gamma-irradiated bags on the seafloor using a Mobile Pumping System. Cubitainers were stored cold (2-4C) and in the dark for approximately one year before beginning the experiments. A detailed description of the cathodic poised potential protocol used is available elsewhere (Jones and Orcutt, 2019). In brief, glass two-cell, three-electrode MFC systems (Adams and Chittenden, CA, USA) were used as incubations chambers, run in parallel with a multichannel potentiostat (model CHI1030C, CHI Instruments, TX, USA). Nafion 117 proton exchange membrane (Fuel Cell Store, TX) separated the half- cells. Cells were filled with distilled water and autoclaved prior to filling with media and sample inocula. Ag/AgCl reference electrodes (Gamry Instruments, PA, USA part 932-00018 and/or Analytical Instrument Systems, NY, USA) were calibrated before each run by immersion in 3 M NaCl and compared against a known electrode kept only for that purpose (max +/- 20 mV drift from the value of lab master electrode). Working electrodes (WEs) were 2 4 cm2 Indium Tin Oxide (ITO) coated glass slides (Delta Technologies Ltd, CO, USA part CB-50IN-1111), constructed for MFC as described elsewhere (Rowe et al., 2015). Counter electrodes (CEs) were carbon cloth with a 4 4 cm2 surface area. Electrodes were sterilized by rinsing with 80% ethanol, air-drying, then exposing to UV radiation for 15 minutes per side. Each experiment consisted of five treatments: Three MFCs filled with buffered and double autoclaved crustal fluid (cool and oxic), inoculated with samples, and incubated with a WE set poised at -200 mV versus a standard hydrogen electrode (SHE) referred to as the Echem treatments; one MFC filled with the same fluid and WE but without any sample inoculum referred to as the Fluid treatment; and one glass bottle with a mixed sample inoculum and ITO electrode without any voltage applied referred to as the Offline treatment. Samples were transferred into the MFCs in HEPA-filtered, UV-irradiated biosafety cabinet or hood using sterile tools. An aliquot of each sample was also collected into a sterile plastic tube for microbial community analysis representing a time zero (T0) condition that may have changed from the Shipboard (SB) initial condition. For the Echem and Fluid treatments, the counter cell redox couple was H2O/O2. Testing (data not shown) determined that a strong kill control method was necessary to achieve sterility of the crustal fluid, consisting of 1 h autoclaving at 121C, incubation at room temperature in the dark for ~24 h to allow for spore germination, and then another 1 h autoclaving at 121C before cooling down to 4C for the addition of substrate. Sodium bicarbonate was added to the media (0.1 M) as a buffer. MFCs were incubated at 4C in the dark. Once the MFCs were constructed, a cyclic voltammetry (CV) sweep was performed for each cell with the potentiostat before each poised potential experiment at a scan rate of 0.1 V s-1 and sample interval of 0.001 V, across -1 to 1 V range. Then the chronoamperometry (CA) experiments began by applying a constant voltage (-200 mV versus SHE) to the Echem and Fluid MFCs. Current generation was monitored and recorded until current changes began to decline after a period of approximately 15 days. At the end of each CA experiment, two further CV sweeps were performed: one with the incubated ITO electrode (Tend i) and one with a fresh ITO electrode dipped into the incubated media (Tend ii).
attribute	NC_GLOBAL	awards_0_award_nid	String	707761
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1536539
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1536539
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	Barbara Ransom
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	661067
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	CA Experimental metadata PI: Beth Orcutt Data Version 1: 2019-10-30
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2019-10-30T18:45:33Z
attribute	NC_GLOBAL	date_modified	String	2020-02-11T16:02:21Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.780225.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-46.053
attribute	NC_GLOBAL	geospatial_lat_max	double	22.8023
attribute	NC_GLOBAL	geospatial_lat_min	double	22.7564
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-46.053
attribute	NC_GLOBAL	geospatial_lon_min	double	-46.0817
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/780225
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	780231
attribute	NC_GLOBAL	instruments_0_description	String	Instruments that obtain information about an analyte by applying a potential and measuring the current produced in the analyte.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB35/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Voltammetry Analyzers
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	698
attribute	NC_GLOBAL	instruments_0_supplied_name	String	multichannel potentiostat (model CHI1030C, CHI Instruments, TX, USA)
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, borehole, channel, chemical, cruise, data, dataset, date, depth, dmo, erddap, experiment, ExperimentID, flocsdeploy, flocsdeployment, FLOCSdeploymentCruise, flocsdepth, flocsname, flocsrecover, FLOCSrecoverCruise, FLOCSrecoverDate, flocssource, FLOCSsourceDepth, flocssubstrate, flocstype, fluid, fluidcollection, FluidcollectionCruise, FluidcollectionDate, FluidSource, latitude, longitude, management, mediasource, MediasourceDepth, oceanography, office, preliminary, source, time, treatment, water, WaterDepth
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/780225/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/780225
attribute	NC_GLOBAL	Northernmost_Northing	double	22.8023
attribute	NC_GLOBAL	param_mapping	String	{'780225': {'Latitude': 'flag - latitude', 'Longitude': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/780225/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Bigelow Laboratory for Ocean Sciences
attribute	NC_GLOBAL	people_0_person_name	String	Beth N. Orcutt
attribute	NC_GLOBAL	people_0_person_nid	String	565799
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_1_person_name	String	Amber York
attribute	NC_GLOBAL	people_1_person_nid	String	643627
attribute	NC_GLOBAL	people_1_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_1_role_type	String	related
attribute	NC_GLOBAL	project	String	North Pond 2017
attribute	NC_GLOBAL	projects_0_acronym	String	North Pond 2017
attribute	NC_GLOBAL	projects_0_description	String	NSF Award Abstract: Seawater circulates through the upper part of the oceanic crust much like groundwater flows through continental aquifers. However, in the ocean this seawater circulation, many times heated by buried magmatic bodies, transports and releases 25% of the Earth's heat. The rate of fluid flow through ocean crust is estimated to be equal to the amount of water delivered by rivers to the ocean. Much of what we know of this subseafloor fluid flow comes from studies in the eastern Pacific Ocean on ocean crust created by medium and fast spreading mid-ocean ridges. These studies indicate that seawater and its circulation through the seafloor significantly impact crustal evolution and biogeochemical cycles in the ocean and affect the biosphere in ways that are just now beginning to be quantified and understood. To expand this understanding, this research focuses on fluid flow of seafloor generated by slow spreading ridges, like those in the Atlantic, Indian and Arctic Oceans because it is significantly different in structure, mineralogy, and morphology than that formed at fast and intermediate spreading ridges. This research returns to North Pond, a long-term; seafloor; fluid flow monitoring site, drilled and instumented by the Ocean Drilling Program in the Atlantic Ocean. This research site was punctured by boreholes in which fluid flow and geochemical and biological samplers have been deployed for a number of years to collect data and samples. It also provides resources for shipboard and on-shore geochemical and biological analysis. Broader impacts of the work include sensor and technology development, which increases infrastructure for science and has commercial applications. It also provides training for students and the integration of education and research at three US academic institutions, one of which is an EPSCoR state (Mississippi), and supports a PI whose gender is under-represented in sciences and engineering. Public outreach will be carried out in conjunction with the Center for Dark Energy Biosphere Investigations. This project completes a long-term biogeochemical and hydrologic study of ridge flank hydrothermal processes on slow-spreading, 8 million year old crust on the western flank of the Mid-Atlantic Ridge. The site, North Pond, is an isolated northeast-trending sediment pond, bounded by undersea mountains that have been studied since the 1970s. During Integrated Ocean Drilling Program Expedition 336 in 2011 and an expedition five months later (2012), sensors, samplers, and experiments were deployed in four borehole observatories drilled into the seafloor that penetrated into volcanic crust, with the purpose of monitoring changes in hydrologic properties, crustal fluid composition and mineral alteration, among other objectives. Wellhead sampling in 2012 and 2014 already revealed changes in crustal fluid compositions; and associated pressure data confirm that the boreholes are sealed and overpressured, reflecting a change in the formation as the boreholes recover from drilling disturbances. This research includes a 13-day oceanographic expedition and use of on-site robotically operated vehicles to recover downhole instrument packages at North Pond. It will allow the sampling of crustal fluids, recovering pressure data, and measuring fluid flow rates. Ship- and shore-based analyses will be used to address fundamental questions related to the hydrogeology of hydrothermal processes on slow-spread crust.
attribute	NC_GLOBAL	projects_0_end_date	String	2018-09
attribute	NC_GLOBAL	projects_0_geolocation	String	North Pond, Mid-Atlantic Ridge flank CORKs
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust
attribute	NC_GLOBAL	projects_0_project_nid	String	707762
attribute	NC_GLOBAL	projects_0_project_website	String	http://www.darkenergybiosphere.org/research-activities/field-sites/
attribute	NC_GLOBAL	projects_0_start_date	String	2015-10
attribute	NC_GLOBAL	publisher_name	String	Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	22.7564
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Metadata for cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01.
attribute	NC_GLOBAL	title	String	[AT39-01 CathodicEET Experiment Metadata] - Metadata for cathodic poised potential experiments with subsurface crustal samples from CORK borehole observatories at North Pond on the Mid-Atlantic Ridge during R/V Atlantis cruise AT39-01 (Collaborative Research: Completing North Pond Borehole Experiments to Elucidate the Hydrology of Young, Slow-Spread Crust)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-46.0817
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	ExperimentID		String
attribute	ExperimentID	bcodmo_name	String	exp_id
attribute	ExperimentID	description	String	Text description of experiment with microbial fuel cells; values of NP11, NP12, NP13, NP14 or NP15
attribute	ExperimentID	long_name	String	Experiment ID
attribute	ExperimentID	units	String	unitless
variable	Channel		String
attribute	Channel	bcodmo_name	String	sample_descrip
attribute	Channel	description	String	Channel used in the poised potential experiment microbial fuel cell; values of NA (not applicable), CH1 (channel 1), CH2 (channel 2), CH3 (channel 3), or CH4 (channel 4)
attribute	Channel	long_name	String	Channel
attribute	Channel	units	String	unitless
variable	Treatment		String
attribute	Treatment	bcodmo_name	String	treatment
attribute	Treatment	description	String	Treatment of the microbial fuel cell; values of Offline (with sample but no voltage applied), Fluid (with filtered fluid only/no sample and with voltage applied), or Echem (with sample and voltage applied)
attribute	Treatment	long_name	String	Treatment
attribute	Treatment	units	String	unitless
variable	FLOCSsubstrate		String
attribute	FLOCSsubstrate	bcodmo_name	String	sample_descrip
attribute	FLOCSsubstrate	description	String	Description of the FLOCS sample type put into the microbial fuel cell; values of Mixed (a mixture of samples), NA (not applicable, no sample), Basalt, Glass Wool, or Pyrrhotite
attribute	FLOCSsubstrate	long_name	String	FLOCSsubstrate
attribute	FLOCSsubstrate	units	String	unitless
variable	Borehole		String
attribute	Borehole	bcodmo_name	String	site_descrip
attribute	Borehole	description	String	Name of the IODP borehole that was the location of the FLOCS experiment; values of U1382A (from IODP Hole U1382A) or U1383C (from IODP Hole U1383C)
attribute	Borehole	long_name	String	Borehole
attribute	Borehole	units	String	unitless
variable	FluidSource		String
attribute	FluidSource	bcodmo_name	String	site_descrip
attribute	FluidSource	description	String	Name of the IODP borehole location where crustal fluid was collected for preparing microbial fuel cell media; values of U1382A (from IODP Hole U1382A shallow horizon), U1383Cdeep (from IODP Hole U1383C deep horizon), or U1383Cshallow (from IODP Hole U1383C shallow horizon)
attribute	FluidSource	long_name	String	Fluid Source
attribute	FluidSource	units	String	unitless
variable	FLOCStype		String
attribute	FLOCStype	bcodmo_name	String	exp_type
attribute	FLOCStype	description	String	Type of the FLOCS experiment; values of U1382A downhole (recovered from the shallow horizon of U1382A), U1382A wellhead (from the wellhead of IODP Hole U1382A), and U1383C wellhead bottom water (from IODP Hole U1383C wellhead)
attribute	FLOCStype	long_name	String	FLOCStype
attribute	FLOCStype	units	String	unitless
variable	FLOCSname		String
attribute	FLOCSname	bcodmo_name	String	exp_type
attribute	FLOCSname	description	String	Name of the FLOCS experiment
attribute	FLOCSname	long_name	String	FLOCSname
attribute	FLOCSname	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	22.7564, 22.8023
attribute	latitude	axis	String	Y
attribute	latitude	bcodmo_name	String	latitude
attribute	latitude	colorBarMaximum	double	90.0
attribute	latitude	colorBarMinimum	double	-90.0
attribute	latitude	description	String	Latitude of the FLOCS experiment
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LATX/
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-46.0817, -46.053
attribute	longitude	axis	String	X
attribute	longitude	bcodmo_name	String	longitude
attribute	longitude	colorBarMaximum	double	180.0
attribute	longitude	colorBarMinimum	double	-180.0
attribute	longitude	description	String	Longitude of the FLOCS experiment
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LONX/
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	WaterDepth		short
attribute	WaterDepth	_FillValue	short	32767
attribute	WaterDepth	actual_range	short	4414, 4483
attribute	WaterDepth	bcodmo_name	String	depth_w
attribute	WaterDepth	description	String	water depth to seafloor of the IODP Hole
attribute	WaterDepth	long_name	String	Water Depth
attribute	WaterDepth	units	String	meters (m)
variable	FLOCSdepth		String
attribute	FLOCSdepth	bcodmo_name	String	meters below seafloor
attribute	FLOCSdepth	description	String	Approximate depth, in meters below seafloor, where the FLOCS experiment was deployed
attribute	FLOCSdepth	long_name	String	FLOCSdepth
attribute	FLOCSdepth	units	String	meters below seafloor (m)
variable	FLOCSsourceDepth		String
attribute	FLOCSsourceDepth	bcodmo_name	String	meters below seafloor
attribute	FLOCSsourceDepth	description	String	Approximate depth, in meters below seafloor, where the crustal fluids that inoculated the FLOCS were sourced from
attribute	FLOCSsourceDepth	long_name	String	FLOCSsource Depth
attribute	FLOCSsourceDepth	units	String	meters below seafloor (m)
variable	MediasourceDepth		String
attribute	MediasourceDepth	bcodmo_name	String	meters below seafloor
attribute	MediasourceDepth	description	String	Approximate depth, in meters below seafloor, where the crustal fluids were collected to prepare media for the microbial fuel cells
attribute	MediasourceDepth	long_name	String	Mediasource Depth
attribute	MediasourceDepth	units	String	meters below seafloor (m)
variable	FLOCSdeploymentCruise		String
attribute	FLOCSdeploymentCruise	bcodmo_name	String	cruise_id
attribute	FLOCSdeploymentCruise	description	String	Name of the cruise (and ROV Jason dive number) when the FLOCS was deployed; values of IODP Expedition 336, MSM37 (R/V Maria S. Merian cruise MSM37) + J2-#### (ROV Jason dive number)
attribute	FLOCSdeploymentCruise	long_name	String	FLOCSdeployment Cruise
attribute	FLOCSdeploymentCruise	units	String	unitless
variable	FLOCSrecoverCruise		String
attribute	FLOCSrecoverCruise	bcodmo_name	String	cruise_id
attribute	FLOCSrecoverCruise	description	String	Name of the cruise (and ROV Jason dive number) when the FLOCS was recovered; values of AT39-01 (R/V Atlantis cruise AT39-01) + J2-#### (ROV Jason dive number)
attribute	FLOCSrecoverCruise	long_name	String	FLOCSrecover Cruise
attribute	FLOCSrecoverCruise	units	String	unitless
variable	FluidcollectionCruise		String
attribute	FluidcollectionCruise	bcodmo_name	String	cruise_id
attribute	FluidcollectionCruise	description	String	Name of the cruise and ROV Jason dive number when the crustal fluid was collected; values of AT39-01 (R/V Atlantis cruise AT39-01) + J2-#### (ROV Jason dive number)
attribute	FluidcollectionCruise	long_name	String	Fluidcollection Cruise
attribute	FluidcollectionCruise	units	String	unitless
variable	FLOCSdeployDate		String
attribute	FLOCSdeployDate	bcodmo_name	String	date
attribute	FLOCSdeployDate	description	String	Date of the FLOCS deployment, in ISO 8601 format yyyy-mm-dd
attribute	FLOCSdeployDate	long_name	String	FLOCSdeploy Date
attribute	FLOCSdeployDate	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	FLOCSdeployDate	source_name	String	FLOCSdeployDate
attribute	FLOCSdeployDate	time_precision	String	1970-01-01
attribute	FLOCSdeployDate	units	String	unitless
variable	FLOCSrecoverDate		String
attribute	FLOCSrecoverDate	bcodmo_name	String	date
attribute	FLOCSrecoverDate	description	String	Date of the FLOCS recovery, in ISO 8601 format yyyy-mm-dd
attribute	FLOCSrecoverDate	long_name	String	FLOCSrecover Date
attribute	FLOCSrecoverDate	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	FLOCSrecoverDate	time_precision	String	1970-01-01
attribute	FLOCSrecoverDate	units	String	unitless
variable	FluidcollectionDate		String
attribute	FluidcollectionDate	bcodmo_name	String	date
attribute	FluidcollectionDate	description	String	Date of the collection of the crustal fluids, in ISO 8601 format yyyy-mm-dd
attribute	FluidcollectionDate	long_name	String	Fluidcollection Date
attribute	FluidcollectionDate	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	FluidcollectionDate	time_precision	String	1970-01-01
attribute	FluidcollectionDate	units	String	unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.