Dataset: GP15 size-fractionated major, minor, & trace particle composition and concentration - Leg 1

Name: Size-fractionated major, minor, & trace particle composition and concentration from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from Sept to Oct 2018
Published: 2024-01-30
Keywords: particles, in-situ filtration, pumps, scavenging, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.918811.1

Spatial Extent: N:56.0585 E:-152 S:19.6808 W:-156.962

Full ocean water column sampling along a meridional transect at 152°W from 56°N to 20°S

Temporal Extent: 2018-09-24 - 2018-10-21

Project:

US GEOTRACES Pacific Meridional Transect (GP15) (U.S. GEOTRACES PMT)

US GEOTRACES PMT: the geochemistry of size-fractionated suspended particles collected by in-situ filtration (PMT Size-fractionated Suspended Particles)

Program:

U.S. GEOTRACES (U.S. GEOTRACES)

Principal Investigator:

Phoebe J. Lam (University of California-Santa Cruz, UCSC)

Scientist:

Jong-Mi Lee (University of California-Santa Cruz, UCSC)

Student:

Vinicius J. Amaral (University of California-Santa Cruz, UCSC)

Nicholas Carracino (University of California-Santa Cruz, UCSC)

Allison Laubach (University of California-Santa Cruz, UCSC)

Katherine Mateos (University of California-Santa Cruz, UCSC)

Sophie Rojas (University of California-Santa Cruz, UCSC)

BCO-DMO Data Manager:

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

Version:

Version Date:

2024-01-30

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Size-fractionated major, minor, & trace particle composition and concentration from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from Sept to Oct 2018

Abstract:

Size-fractionated particles were collected by in-situ filtration on the U.S. GEOTRACES GP15 Pacific Meridional Transect (PMT), which sampled from Alaska to Tahiti along 152°W Sept-Nov 2018. The PMT expedition was divided into two legs, with cruise IDs RR1814 and RR1815. This dataset results from leg 1, RR1814; data from RR1815 are available in a separate BCO-DMO dataset. This dataset includes a suite of trace elements (e.g. iron, aluminum, zinc, manganese, cadmium, copper, cobalt, titanium, and barium), some of which are required for life, and others that act as tracers of oceanographic processes, and major biologically-produced carrier phases (e.g. particulate organic carbon and the biominerals, calcium carbonate and biogenic silica) in the size-fractionated particles collected from the US PMT section. Along with collaboration with researchers from other institutions, these data are used to assess the relative importance of particle concentration, composition, and size distribution on the cycling and removal of trace elements and their isotopes (TEIs).

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2024-01-30	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.918811.1	2024-02-05

Methods & Sampling

Sampling:

Size-fractionated particles were collected using dual-flow McLane Research in-situ pumps (WTS-LV) and 142-millimeter (mm) "mini-MULVFS" filter holders (Bishop et al., 2012; Lam et al., 2018; Lam et al., 2015a; Xiang and Lam, 2020). At most of the stations, two casts of 8 pumps each and two filter holders per pump were deployed to collect samples at 16 depths throughout the water column. At super stations, a 24-depth profile was obtained with three casts. The targeted depths of the wire-out were corrected using pressure readings from a self-recording Seabird 19plus CTD at the end of the line. One filter holder/flowpath was loaded with a Sefar polyester mesh prefilter (51 micrometers (μm) pore size, called the "Qp" filter) and paired Whatman QMA quartz fiber filters (1 μm pore size) in series ("QMA-side"). The other filter holder/flowpath was also loaded with a 51 μm prefilter (called the "Sp" filter), but it was followed by paired 0.8 μm Pall Supor800 polyethersulfone filters ("Supor-side"). A 150 μm Sefar polyester mesh was placed underneath all 51 μm prefilters and QMA filters as a support to facilitate filter handling but not analyzed. All filters and filter holders were acid-leached before use based on the recommended methods in the GEOTRACES sample and sample-handling protocols Cutter et al., 2010). QMA filters were pre-combusted at 450 degrees Celsius (°C) for 4 hours after acid leaching.

A special plate was manufactured for one of the pumps that could hold two additional mini-MULVFS filter holders that were loaded with full filter sets but not connected to plumbing. These 'dipped blank' filters included the full filter sets (51 µm prefilter on top of paired QMA or paired Supor filters) with a 0.2um Supor polyethersulfone filter on top of the 51 µm polyester prefilters to exclude all particles from the main filter set. These were processed identically to the regular filters and functioned as full process blanks A total of 49 dipped blank filters were used for blank subtraction, calculations of uncertainties, and determination of detection limits (Table 2).

In this dataset, data reported from the 51 μm prefilter are referred to with an "LPT" suffix to indicate large particulate total concentrations (>51 μm). Samples could come from the QMA side ("Qp" filter) or the Supor side ("Sp" filter) and are treated equivalently. Data reported from the main filters (QMA—1-51 μm —or Supor—0.8-51 μm) are from the top filter of the pair only, and are referred to with an "SPT" suffix to indicate the small particulate total concentrations.

Analytical Procedures:

Particulate organic carbon (POC) and particulate nitrogen (PN):
For SPT particles, a 25 mm punch of QMA filter was dried at 55°C at sea. LPT (>51 µm) particles were rinsed at sea from the Sp filter using 0.2 µm-filtered seawater onto a 25mm 0.8µm Ag filter (Sterlitech) and dried at 55°C at sea. These samples were beta counted for ²³⁴Th at sea by the CafeTh lab at WHOI, then sent to the Lam lab at UCSC for POC and PN analyses. POC and PN sample processing was similar to what was described in Xiang and Lam (2020). Filter samples were dismounted from the beta mounts. Typically, a 22 mm QMA subpunch or the entire 25 mm 0.8 µm Ag filter were fumed in a desiccator with concentrated HCl and dried in the oven at 60 °C overnight, and then pelletized with 30mm tin discs from EA Consumables. Tin disc encapsulated samples were measured using a CE Instruments NC 2500 model Carbon/Nitrogen Analyzer interfaced to a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer (IRMS) at the Stable Isotope Laboratory at University of California, Santa Cruz. Isotopic results obtained from the IRMS were calibrated using reference materials Acetanilide (C8H9NO). The effect of dissolved organic carbon sorption is corrected with isotopic values of dipped blanks. The isotopic data are expressed in the standard delta notation as per mil deviations (‰) with respect to international standards of Pee Dee Belemnite (PDB) and atmospheric nitrogen. The precision of the internal standard (Pugel) analyzed along with the samples in the run is 0.07‰ for d13C and 0.14‰ for d15N.

Particulate inorganic carbon (PIC):
A UIC Carbon dioxide coulometer was used for PIC measurement. Briefly, PIC on SPT QMA punches or 1/16 LPT QMA-side prefilter was converted to CO₂ by addition of 2 N sulfuric acid. CO₂ produced is carried by a gas stream into a coulometer cell where CO₂ is quantitatively absorbed by a cathode solution, reacted to form a titratable acid and measured based on the change in current.

Biogenic silica (bSi):
A 1-hour alkaline leach with 0.2 M NaOH at 85°C was used to leach bSi for both size fractions prior to the measurement on a Lachat QuikChem 8000 Flow Injection Analyzer at UCSC. A 4-hour time-series leaching approach to correct for the contribution from lithogenic Si was applied to a subset of stations and the deepest 3-4 bare bottom samples from all stations (cf., Barão et al., 2015; DeMaster, 1981; Lam et al., 2018). Lithogenic Si was only important for some near-bottom samples, so the intercept ("t0" value) was used for the near-bottom samples; the 1-hour timepoint was used for all other samples.

Particulate trace metals (pTM):
pTM total concentrations (SPT, LPT): The digestion method of pTM is based on a refluxing method (Cullen and Sherrell, 1999; Planquette and Sherrell, 2012) with light modifications similar to the "Piranha method" in Ohnemus et al. (2014). In brief, the Supor filter was adhered to the wall by surface tension in a 15-milliliter (mL) flat-bottom screw-cap Savillex vial to avoid immersion. After 4-hours of refluxing at 110 °C with an ultrapure (ARISTAR® or Optima grade) 50% HNO3/10% HF (v/v) mixture, digestion acids were transferred into secondary vials and heated to near dryness. The residue was heated in 50% HNO3/15% H2O2 (v/v) to dryness at 110 °C. The final residue was re-dissolved with 2 mL 5% HNO3 spiked with 1 ppb In. Two certified reference materials (BCR-414 and PACS-2) were digested routinely alongside the samples to assure the quality of each digestion.

pTM leachable concentrations (SPL): A 1/16ᵗʰ slice of Supor filter was leached using the "Berger Leach", a weak acid leach comprising 25% Q-grade acetic acid and 0.02M reagent grade hydroxylamine hydrochloride (Berger et al. 2008). Samples are submerged in the Berger Leach solution and heated in a 95°C water bath for 10 minutes, cooled at room temperature for about 1.3 hours, and then centrifuged for 30 minutes at 4100 rpm. Total leach time should be 2 hours. The supernatant is transferred to a 15 mL Savillex vial and dried for over an hour at 110°C. The residue is redissolved and dried in concentrated HNO3 twice and brought up in 5% HNO2 spiked with 1 ppb In. Two certified reference materials (BCR-414 and PACS-2) were leached routinely alongside the samples to assure the quality of each leach.

Analysis by ICP-MS: Sample solutions were analyzed using an Element XR high-resolution ICP-MS (Thermo Scientific) at the UCSC Plasma Analytical Facility. Elemental concentrations were standardized using multi-element, external standard curves prepared from NIST atomic absorption-standards in 5% HNO₃. Instrument drift and matrix effects were corrected using the internal 1ppb In standard and monitored using a mixed element run standard. Concentrations were determined using external standard curves of mixed trace elements standards. If a parameter was measured on the ICP-MS, the isotope and resolution (LR=Low Resolution; MR=Medium Resolution) used for the concentration measurement are indicated in Table 4.

Further details on instrumentation can be found in Table 3.

Data Processing Description

Blank subtraction:
Dipped blanks were assessed for each analyte for spatial trends, indicating potential variation in adsorption blanks, and grouped accordingly (see Table 1). Outliers for each measurement type were excluded using Chauvenet's criterion (Glover et al., 2011). The median of the appropriately grouped db filters was then used in blank subtraction to take into account the adsorption and sample handling blanks.

No blank corrections were made to the stable isotopic composition of C (d13C) and N (d15N) for the LPT and SPT particles and are given as raw values. Note that poorly loaded filters will have great uncertainty in the isotopic compositions.

Error propagation:
For most parameters, we could not routinely run replicates, so almost all errors reported are determined from the standard deviation of dipped blank filters (Table 1), converted to concentrations using volume filtered. This assumes that the blank subtraction is the largest source of error.

Quality Flags:
The detection limit was defined as three times the standard deviation of the dipped blank filters. Values below the detection limit were flagged as QF=6 in the GTSPP convention (also adopted by SeaDataNet and recommended by the GEOTRACES programme).

Lab quality control (QC) included running standard reference materials for POC&PN (acetanilide), and for pTM (BCR414 and PACS-2; see Table 2), as well as participation in intercalibration exercises.

All data have been assigned quality flags using the GTSPP convention and interpretation:

1 = good; passed lab QC and oceanographically consistent.

2 = possibly good; oceanographically consistent, but have minor sampling/instrumental issues.

3 = possibly bad; not oceanographically consistent, or have major sampling/instrumental issues

4 = bad; failed lab QC (including all failed pumps when only small or no volume was pumped through the filter), or known issue with samples. For a measured parameter from a failed pump, if the filter sample was analyzed and a non-zero volume was recorded so that a concentration could be derived, this concentration is reported with QF=4. These values are generally not reliable because recorded volumes for failed pumps are probably not correct. If a zero volume was recorded, then a concentration could not be derived, and the value is reported as "NaN" with QF=4. For a derived parameter from a failed pump, this QF=4 applies if any of the parameters on which it is based had a QF=4 but is not "NaN".

6 = below detection limit.

9 = data missing (including all "nd"). For a measured parameter, this QF applies to lost or missing samples that were not measured. For a derived parameter, this QF=9 applies if any of the parameters on which it is based is missing (QF=9) or is "NaN".

BCO-DMO Processing

- Imported original file "RR1814_allparams_DoOR_data_submit_Lam_v1.xlsx" into the BCO-DMO system.
- Added the start date and start time columns from the RR1814 event log, based on GEOTRACES event number; used event log (v4) obtained from BCO-DMO (dataset ID 776755) on 2024-01-30.
- Renamed fields/columns to comply with BCO-DMO naming conventions.
- Removed empty columns.
- Rounded depth column to 1 decimal place (only if values had more than 1 decimal place); rounded all other numeric columns to 5 decimal places.
- Saved the final file as "918811_v1_rr1814_size-fractionated_particles.csv".

Data Files

File
918811_v1_rr1814_size-fractionated_particles.csv (Comma Separated Values (.csv), 214.71 KB) MD5:e595c2d10c30ecaf7cbd880f969771b9 Primary data file for dataset ID 918811, version 1

Supplemental Files

File
Table_1.pdf (Portable Document Format (.pdf), 867.48 KB) MD5:e278db17abf7e2eee5e9c354f96638b7 Supplemental file for dataset IDs 918811 and 919139. Table 1: The median and standard deviation of LPT and SPT dipped blanks (db). The detection limit (DL) was defined as three times the standard deviation of the dipped blanks. The active filter area is 125 cm2.
Table_2.pdf (Portable Document Format (.pdf), 326.01 KB) MD5:a74c32f846c51bb75c9853f84e3dfed1 Supplemental file for dataset IDs 918811 and 919139. Table 2: Recoveries of pTM for certified reference materials (BCR-414 plankton and PACs-2 sediment).
Table_3.pdf (Portable Document Format (.pdf), 371.53 KB) MD5:a0dd87d4cd3ce8e33bcf4fb5cd49d5e2 Supplemental file for dataset IDs 918811 and 919139. Table 3: Instrumentation used in the sample analysis.
Table_4.pdf (Portable Document Format (.pdf), 626.20 KB) MD5:ac5fe37ad59273d17c01af2198329cff Supplemental file for dataset IDs 918811 and 919139. Table 4: Descriptions of all measured and derived parameters. If a parameter was measured on the ICP-MS, the isotope and resolution (LR=Low Resolution; MR=Medium Resolution) used for the concentration measurement are indicated in this table. Please see the quality flags section and the parameters section of the metadata for additional information.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1736601

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
RR1814	GP15 GP15 Leg1 33RR20180918 PMT US GEOTRACES PMT	2018-09-18	R/V Roger Revelle	Gregory A. Cutter (Chief Scientist) Karen L. Casciotti (Co-Chief Scientist) Phoebe J. Lam (Co-Chief Scientist)	data info

Instruments

CO2 Coulometer

Supplied Name: UIC Carbon dioxide coulometer

Supplied Description:

Used in the measurement of PIC, and to derive CaCO3.

Instrument Type

Generic Name: CO2 Coulometer

Acronym: CO2 coulometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB12

Generic Description:

A CO2 coulometer semi-automatically controls the sample handling and extraction of CO2 from seawater samples. Samples are acidified and the CO2 gas is bubbled into a titration cell where CO2 is converted to hydroxyethylcarbonic acid which is then automatically titrated with a coulometrically-generated base to a colorimetric endpoint.

Elemental Analyzer

Supplied Name: CE Instruments NC2500

Supplied Description:

Used in the measurement of POC and PN, and to derive POM.

Instrument Type

Generic Name: Elemental Analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/

Generic Description:

Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: Element XR high-resolution ICP-MS (Thermo)

Supplied Description:

Used in the measurement of pTM, and to derive LITHO, FeOH3, and MnO2.

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Isotope-ratio Mass Spectrometer

Supplied Name: ThermoFinnigan Delta Plus XP isotope ratio

Supplied Description:

Used in the measurement of d13C and d15N.

Instrument Type

Generic Name: Isotope-ratio Mass Spectrometer

Acronym: IR Mass Spec; IRMS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/

Generic Description:

The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).

Lachat QuikChem 8500 flow injection analysis system

Supplied Name: Lachat QuikChem 8000 Flow Injection Analyzer

Supplied Description:

Used in the measurement of bSi, and to derive OPAL.

Instrument Type

Generic Name: Lachat QuikChem 8500 flow injection analysis system

Acronym: QuikChem 8500

Generic Description:

The Lachat QuikChem 8500 Series 2 Flow Injection Analysis System features high sample throughput and simple, but rapid, method changeover. The QuikChem 8500 Series 2 system maximises productivity in determining ionic species in a variety of sample types, from sub-ppb to percent concentrations. Analysis takes 20 to 60 seconds, with a sample throughput of 60 to 120 samples per hour.

McLane Large Volume Pumping System WTS-LV

Supplied Name: dual-flow McLane Research in-situ pumps (WTS-LV)

Supplied Description:

Size-fractionated particles were collected using dual-flow McLane Research in-situ pumps (WTS-LV). More details can be found in the patent description (https://patents.google.com/patent/US20130298702) and the official website of the manufacturer (https://mclanelabs.com/wts-lv-large-volume-pump/).

Instrument Type

Generic Name: McLane Large Volume Pumping System WTS-LV

Acronym: WTS-LV

Generic Description:

The WTS-LV is a Water Transfer System (WTS) Large Volume (LV) pumping instrument designed and manufactured by McLane Research Labs (Falmouth, MA, USA). It is a large-volume, single-event sampler that collects suspended and dissolved particulate samples in situ.

Ambient water is drawn through a modular filter holder onto a 142-millimeter (mm) membrane without passing through the pump. The standard two-tier filter holder provides prefiltering and size fractioning. Collection targets include chlorophyll maximum, particulate trace metals, and phytoplankton. It features different flow rates and filter porosity to support a range of specimen collection. Sampling can be programmed to start at a scheduled time or begin with a countdown delay. It also features a dynamic pump speed algorithm that adjusts flow to protect the sample as material accumulates on the filter. Several pump options range from 0.5 to 30 liters per minute, with a max volume of 2,500 to 36,000 liters depending on the pump and battery pack used. The standard model is depth rated to 5,500 meters, with a deeper 7,000-meter option available. The operating temperature is -4 to 35 degrees Celsius.

The WTS-LV is available in four different configurations: Standard, Upright, Bore Hole, and Dual Filter Sampler. The high-capacity upright WTS-LV model provides three times the battery life of the standard model. The Bore-Hole WTS-LV is designed to fit through a narrow opening such as a 30-centimeter borehole. The dual filter WTS-LV features two vertical intake 142 mm filter holders to allow simultaneous filtering using two different porosities.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Station_ID	Station ID number	unitless	station
Event_Date_Start	Date (UTC) at start of the sampling event; values were added from the RR1814 event log Format: %Y-%m-%d	unitless	date
Event_Time_Start_UTC	Time (UTC) at start of the sampling event; values were added from the RR1814 event log Format: %H:%M	unitless	time
Event_Date_End	Date (UTC) at end of the sampling event; values were added from the RR1814 event log Format: %Y-%m-%d	unitless	date
Event_Time_End_UTC	Time (UTC) at end of the sampling event; values were added from the RR1814 event log Format: %H:%M	unitless	time
Start_Latitude	Latitude at start of sample collection (positive values = North)	decimal degrees	lat
Start_Longitude	Longitude at start of sample collection (negative values = West)	decimal degrees	lon
Cast_number	Cast number	unitless	cast
Event_ID	Event number	unitless	event
Sample_ID	GEOTRACES sample ID number	unitless	sample
Sample_Depth	Sample depth	meters (m)	depth
Ag_LPT_CONC_PUMP_lhkpni	Concentration of particulate Ag from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ag_SPL_CONC_PUMP_jhzjha	Small particulate leachable ("SPL") concentration of Ag determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Ag_SPT_CONC_PUMP_bsfqc3	Concentration of particulate Ag from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Al_LPT_CONC_PUMP_1vbrvq	Concentration of particulate Al from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Al_SPL_CONC_PUMP_epg3zk	Small particulate leachable ("SPL") concentration of Al determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Al_SPT_CONC_PUMP_cs5fom	Concentration of particulate Al from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ba_LPT_CONC_PUMP_es07s2	Concentration of particulate Ba from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ba_SPL_CONC_PUMP_l0iien	Small particulate leachable ("SPL") concentration of Ba determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Ba_SPT_CONC_PUMP_f2nfdm	Concentration of particulate Ba from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
bSi_LPT_CONC_PUMP_1zcy7d	Concentration of biogenic silica from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
bSi_SPT_CONC_PUMP_qnkatr	Concentration of biogenic silica from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Cd_LPT_CONC_PUMP_qa6u3f	Concentration of particulate Cd from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Cd_SPL_CONC_PUMP_vgvitg	Small particulate leachable ("SPL") concentration of Cd determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Cd_SPT_CONC_PUMP_0gzntj	Concentration of particulate Cd from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Co_LPT_CONC_PUMP_u2ngvi	Concentration of particulate Co from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Co_SPL_CONC_PUMP_2kvai5	Small particulate leachable ("SPL") concentration of Co determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Co_SPT_CONC_PUMP_py5tf1	Concentration of particulate Co from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Cu_LPT_CONC_PUMP_uepqeb	Concentration of particulate Cu from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Cu_SPL_CONC_PUMP_igwmvp	Small particulate leachable ("SPL") concentration of Cu determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Cu_SPT_CONC_PUMP_o3yiow	Concentration of particulate Cu from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Fe_LPT_CONC_PUMP_wdw9n6	Concentration of particulate Fe from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Fe_SPL_CONC_PUMP_wiqnyf	Small particulate leachable ("SPL") concentration of Fe determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Fe_SPT_CONC_PUMP_15na7w	Concentration of particulate Fe from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Mn_LPT_CONC_PUMP_kbzgqx	Concentration of particulate Mn from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Mn_SPL_CONC_PUMP_jqsbal	Small particulate leachable ("SPL") concentration of Mn determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Mn_SPT_CONC_PUMP_yalvb1	Concentration of particulate Mn from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Mo_LPT_CONC_PUMP_isi23q	Concentration of particulate Mo from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Mo_SPL_CONC_PUMP_gwuo7p	Small particulate leachable ("SPL") concentration of Mo determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Mo_SPT_CONC_PUMP_8knj92	Concentration of particulate Mo from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
N_15_14_LPT_DELTA_PUMP_mpupya	d15N of particulate N from the large size fraction ("LPT" = "large particulate total")	permil	trace_element_conc
N_15_14_SPT_DELTA_PUMP_stlono	d15N of particulate N from the small size fraction ("SPT" = "small particulate total")	permil	trace_element_conc
N_LPT_CONC_PUMP_knaroj	Concentration of particulate N from the large size fraction ("LPT" = "large particulate total")	micromoles per liter (umol/L)	trace_element_conc
N_SPT_CONC_PUMP_ozfif6	Concentration of particulate N from the small size fraction ("SPT" = "small particulate total")	micromoles per liter (umol/L)	trace_element_conc
Nd_LPT_CONC_PUMP_zdatta	Concentration of particulate Nd from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Nd_SPL_CONC_PUMP_orslyj	Small particulate leachable ("SPL") concentration of Nd determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Nd_SPT_CONC_PUMP_je7vxa	Concentration of particulate Nd from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ni_LPT_CONC_PUMP_sexqmr	Concentration of particulate Ni from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ni_SPL_CONC_PUMP_xbyaz3	Small particulate leachable ("SPL") concentration of Ni determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Ni_SPT_CONC_PUMP_poigjk	Concentration of particulate Ni from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
P_LPT_CONC_PUMP_orrljq	Concentration of particulate P from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
P_SPL_CONC_PUMP_cfeh2e	Small particulate leachable ("SPL") concentration of P determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
P_SPT_CONC_PUMP_x4dkcu	Concentration of particulate P from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
PARTICLEMASS_LPT_CONC_PUMP_peljrb	Concentration of suspended particulate mass from the large size fraction ("LPT" = "large particulate total")	micrograms per liter (ug/L)	trace_element_conc
PARTICLEMASS_SPT_CONC_PUMP_yfcsrr	Concentration of suspended particulate mass from the small size fraction ("SPT" = "small particulate total")	micrograms per liter (ug/L)	trace_element_conc
Pb_LPT_CONC_PUMP_vwm4on	Concentration of particulate Pb from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Pb_SPL_CONC_PUMP_dwirml	Small particulate leachable ("SPL") concentration of Pb determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Pb_SPT_CONC_PUMP_t28loo	Concentration of particulate Pb from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
PIC_LPT_CONC_PUMP_fmdem2	Concentration of particulate inorganic carbon from the large size fraction ("LPT" = "large particulate total")	nanomoles per liter (nmol/L)	trace_element_conc
PIC_SPT_CONC_PUMP_ngbsmo	Concentration of particulate inorganic carbon from the small size fraction ("SPT" = "small particulate total")	nanomoles per liter (nmol/L)	trace_element_conc
POC_13_12_LPT_DELTA_PUMP_yoexye	d13C of particulate organic carbon from the large size fraction ("LPT" = "large particulate total")	permil	trace_element_conc
POC_13_12_SPT_DELTA_PUMP_wydung	d13C of particulate organic carbon from the small size fraction ("SPT" = "small particulate total")	permil	trace_element_conc
POC_LPT_CONC_PUMP_e6jwva	Concentration of particulate organic carbon from the large size fraction ("LPT" = "large particulate total")	micromoles per liter (umol/L)	trace_element_conc
POC_SPT_CONC_PUMP_vxq8vo	Concentration of particulate organic carbon from the small size fraction ("SPT" = "small particulate total")	micromoles per liter (umol/L)	trace_element_conc
Sc_LPT_CONC_PUMP_3p9xfq	Concentration of particulate Sc from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Sc_SPL_CONC_PUMP_magjgm	Small particulate leachable ("SPL") concentration of Sc determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Sc_SPT_CONC_PUMP_xxkrjd	Concentration of particulate Sc from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Th_LPT_CONC_PUMP_bi43na	Concentration of particulate Th from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Th_SPL_CONC_PUMP_y2n5wt	Small particulate leachable ("SPL") concentration of Th determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Th_SPT_CONC_PUMP_ztrrme	Concentration of particulate Th from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ti_LPT_CONC_PUMP_gwwlhw	Concentration of particulate Ti from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Ti_SPL_CONC_PUMP_q8ttoa	Small particulate leachable ("SPL") concentration of Ti determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Ti_SPT_CONC_PUMP_kgjnto	Concentration of particulate Ti from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
V_LPT_CONC_PUMP_zbwnah	Concentration of particulate V from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
V_SPL_CONC_PUMP_etyuwy	Small particulate leachable ("SPL") concentration of V determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
V_SPT_CONC_PUMP_lxljwh	Concentration of particulate V from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Zn_LPT_CONC_PUMP_ltgzx7	Concentration of particulate Zn from the large size fraction ("LPT" = "large particulate total")	picomoles per liter (pmol/L)	trace_element_conc
Zn_SPL_CONC_PUMP_n1rp4n	Small particulate leachable ("SPL") concentration of Zn determined after Berger Leach	picomoles per liter (pmol/L)	trace_element_conc
Zn_SPT_CONC_PUMP_a7yqif	Concentration of particulate Zn from the small size fraction ("SPT" = "small particulate total")	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ag_LPT_CONC_PUMP_lhkpni	Error estimate (one standard deviation) for Ag_LPT_CONC_PUMP_lhkpni	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ag_SPL_CONC_PUMP_jhzjha	Error estimate (one standard deviation) for Ag_SPL_CONC_PUMP_jhzjha	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ag_SPT_CONC_PUMP_bsfqc3	Error estimate (one standard deviation) for Ag_SPT_CONC_PUMP_bsfqc3	picomoles per liter (pmol/L)	trace_element_conc
SD1_Al_LPT_CONC_PUMP_1vbrvq	Error estimate (one standard deviation) for Al_LPT_CONC_PUMP_1vbrvq	picomoles per liter (pmol/L)	trace_element_conc
SD1_Al_SPL_CONC_PUMP_epg3zk	Error estimate (one standard deviation) for Al_SPL_CONC_PUMP_epg3zk	picomoles per liter (pmol/L)	trace_element_conc
SD1_Al_SPT_CONC_PUMP_cs5fom	Error estimate (one standard deviation) for Al_SPT_CONC_PUMP_cs5fom	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ba_LPT_CONC_PUMP_es07s2	Error estimate (one standard deviation) for Ba_LPT_CONC_PUMP_es07s2	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ba_SPL_CONC_PUMP_l0iien	Error estimate (one standard deviation) for Ba_SPL_CONC_PUMP_l0iien	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ba_SPT_CONC_PUMP_f2nfdm	Error estimate (one standard deviation) for Ba_SPT_CONC_PUMP_f2nfdm	picomoles per liter (pmol/L)	trace_element_conc
SD1_bSi_LPT_CONC_PUMP_1zcy7d	Error estimate (one standard deviation) for bSi_LPT_CONC_PUMP_1zcy7d	picomoles per liter (pmol/L)	trace_element_conc
SD1_bSi_SPT_CONC_PUMP_qnkatr	Error estimate (one standard deviation) for bSi_SPT_CONC_PUMP_qnkatr	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cd_LPT_CONC_PUMP_qa6u3f	Error estimate (one standard deviation) for Cd_LPT_CONC_PUMP_qa6u3f	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cd_SPL_CONC_PUMP_vgvitg	Error estimate (one standard deviation) for Cd_SPL_CONC_PUMP_vgvitg	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cd_SPT_CONC_PUMP_0gzntj	Error estimate (one standard deviation) for Cd_SPT_CONC_PUMP_0gzntj	picomoles per liter (pmol/L)	trace_element_conc
SD1_Co_LPT_CONC_PUMP_u2ngvi	Error estimate (one standard deviation) for Co_LPT_CONC_PUMP_u2ngvi	picomoles per liter (pmol/L)	trace_element_conc
SD1_Co_SPL_CONC_PUMP_2kvai5	Error estimate (one standard deviation) for Co_SPL_CONC_PUMP_2kvai5	picomoles per liter (pmol/L)	trace_element_conc
SD1_Co_SPT_CONC_PUMP_py5tf1	Error estimate (one standard deviation) for Co_SPT_CONC_PUMP_py5tf1	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cu_LPT_CONC_PUMP_uepqeb	Error estimate (one standard deviation) for Cu_LPT_CONC_PUMP_uepqeb	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cu_SPL_CONC_PUMP_igwmvp	Error estimate (one standard deviation) for Cu_SPL_CONC_PUMP_igwmvp	picomoles per liter (pmol/L)	trace_element_conc
SD1_Cu_SPT_CONC_PUMP_o3yiow	Error estimate (one standard deviation) for Cu_SPT_CONC_PUMP_o3yiow	picomoles per liter (pmol/L)	trace_element_conc
SD1_Fe_LPT_CONC_PUMP_wdw9n6	Error estimate (one standard deviation) for Fe_LPT_CONC_PUMP_wdw9n6	picomoles per liter (pmol/L)	trace_element_conc
SD1_Fe_SPL_CONC_PUMP_wiqnyf	Error estimate (one standard deviation) for Fe_SPL_CONC_PUMP_wiqnyf	picomoles per liter (pmol/L)	trace_element_conc
SD1_Fe_SPT_CONC_PUMP_15na7w	Error estimate (one standard deviation) for Fe_SPT_CONC_PUMP_15na7w	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mn_LPT_CONC_PUMP_kbzgqx	Error estimate (one standard deviation) for Mn_LPT_CONC_PUMP_kbzgqx	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mn_SPL_CONC_PUMP_jqsbal	Error estimate (one standard deviation) for Mn_SPL_CONC_PUMP_jqsbal	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mn_SPT_CONC_PUMP_yalvb1	Error estimate (one standard deviation) for Mn_SPT_CONC_PUMP_yalvb1	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mo_LPT_CONC_PUMP_isi23q	Error estimate (one standard deviation) for Mo_LPT_CONC_PUMP_isi23q	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mo_SPL_CONC_PUMP_gwuo7p	Error estimate (one standard deviation) for Mo_SPL_CONC_PUMP_gwuo7p	picomoles per liter (pmol/L)	trace_element_conc
SD1_Mo_SPT_CONC_PUMP_8knj92	Error estimate (one standard deviation) for Mo_SPT_CONC_PUMP_8knj92	picomoles per liter (pmol/L)	trace_element_conc
SD1_N_15_14_LPT_DELTA_PUMP_mpupya	Error estimate (one standard deviation) for N_15_14_LPT_DELTA_PUMP_mpupya	permil	trace_element_conc
SD1_N_15_14_SPT_DELTA_PUMP_stlono	Error estimate (one standard deviation) for N_15_14_SPT_DELTA_PUMP_stlono	permil	trace_element_conc
SD1_N_LPT_CONC_PUMP_knaroj	Error estimate (one standard deviation) for N_LPT_CONC_PUMP_knaroj	micromoles per liter (umol/L)	trace_element_conc
SD1_N_SPT_CONC_PUMP_ozfif6	Error estimate (one standard deviation) for N_SPT_CONC_PUMP_ozfif6	micromoles per liter (umol/L)	trace_element_conc
SD1_Nd_LPT_CONC_PUMP_zdatta	Error estimate (one standard deviation) for Nd_LPT_CONC_PUMP_zdatta	picomoles per liter (pmol/L)	trace_element_conc
SD1_Nd_SPL_CONC_PUMP_orslyj	Error estimate (one standard deviation) for Nd_SPL_CONC_PUMP_orslyj	picomoles per liter (pmol/L)	trace_element_conc
SD1_Nd_SPT_CONC_PUMP_je7vxa	Error estimate (one standard deviation) for Nd_SPT_CONC_PUMP_je7vxa	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ni_LPT_CONC_PUMP_sexqmr	Error estimate (one standard deviation) for Ni_LPT_CONC_PUMP_sexqmr	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ni_SPL_CONC_PUMP_xbyaz3	Error estimate (one standard deviation) for Ni_SPL_CONC_PUMP_xbyaz3	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ni_SPT_CONC_PUMP_poigjk	Error estimate (one standard deviation) for Ni_SPT_CONC_PUMP_poigjk	picomoles per liter (pmol/L)	trace_element_conc
SD1_P_LPT_CONC_PUMP_orrljq	Error estimate (one standard deviation) for P_LPT_CONC_PUMP_orrljq	picomoles per liter (pmol/L)	trace_element_conc
SD1_P_SPL_CONC_PUMP_cfeh2e	Error estimate (one standard deviation) for P_SPL_CONC_PUMP_cfeh2e	picomoles per liter (pmol/L)	trace_element_conc
SD1_P_SPT_CONC_PUMP_x4dkcu	Error estimate (one standard deviation) for P_SPT_CONC_PUMP_x4dkcu	picomoles per liter (pmol/L)	trace_element_conc
SD1_PARTICLEMASS_LPT_CONC_PUMP_peljrb	Error estimate (one standard deviation) for PARTICLEMASS_LPT_CONC_PUMP_peljrb	micrograms per liter (ug/L)	trace_element_conc
SD1_PARTICLEMASS_SPT_CONC_PUMP_yfcsrr	Error estimate (one standard deviation) for PARTICLEMASS_SPT_CONC_PUMP_yfcsrr	micrograms per liter (ug/L)	trace_element_conc
SD1_Pb_LPT_CONC_PUMP_vwm4on	Error estimate (one standard deviation) for Pb_LPT_CONC_PUMP_vwm4on	picomoles per liter (pmol/L)	trace_element_conc
SD1_Pb_SPL_CONC_PUMP_dwirml	Error estimate (one standard deviation) for Pb_SPL_CONC_PUMP_dwirml	picomoles per liter (pmol/L)	trace_element_conc
SD1_Pb_SPT_CONC_PUMP_t28loo	Error estimate (one standard deviation) for Pb_SPT_CONC_PUMP_t28loo	picomoles per liter (pmol/L)	trace_element_conc
SD1_PIC_LPT_CONC_PUMP_fmdem2	Error estimate (one standard deviation) for PIC_LPT_CONC_PUMP_fmdem2	nanomoles per liter (nmol/L)	trace_element_conc
SD1_PIC_SPT_CONC_PUMP_ngbsmo	Error estimate (one standard deviation) for PIC_SPT_CONC_PUMP_ngbsmo	nanomoles per liter (nmol/L)	trace_element_conc
SD1_POC_13_12_LPT_DELTA_PUMP_yoexye	Error estimate (one standard deviation) for POC_13_12_LPT_DELTA_PUMP_yoexye	permil	trace_element_conc
SD1_POC_13_12_SPT_DELTA_PUMP_wydung	Error estimate (one standard deviation) for POC_13_12_SPT_DELTA_PUMP_wydung	permil	trace_element_conc
SD1_POC_LPT_CONC_PUMP_e6jwva	Error estimate (one standard deviation) for POC_LPT_CONC_PUMP_e6jwva	micromoles per liter (umol/L)	trace_element_conc
SD1_POC_SPT_CONC_PUMP_vxq8vo	Error estimate (one standard deviation) for POC_SPT_CONC_PUMP_vxq8vo	micromoles per liter (umol/L)	trace_element_conc
SD1_Sc_LPT_CONC_PUMP_3p9xfq	Error estimate (one standard deviation) for Sc_LPT_CONC_PUMP_3p9xfq	picomoles per liter (pmol/L)	trace_element_conc
SD1_Sc_SPL_CONC_PUMP_magjgm	Error estimate (one standard deviation) for Sc_SPL_CONC_PUMP_magjgm	picomoles per liter (pmol/L)	trace_element_conc
SD1_Sc_SPT_CONC_PUMP_xxkrjd	Error estimate (one standard deviation) for Sc_SPT_CONC_PUMP_xxkrjd	picomoles per liter (pmol/L)	trace_element_conc
SD1_Th_LPT_CONC_PUMP_bi43na	Error estimate (one standard deviation) for Th_LPT_CONC_PUMP_bi43na	picomoles per liter (pmol/L)	trace_element_conc
SD1_Th_SPL_CONC_PUMP_y2n5wt	Error estimate (one standard deviation) for Th_SPL_CONC_PUMP_y2n5wt	picomoles per liter (pmol/L)	trace_element_conc
SD1_Th_SPT_CONC_PUMP_ztrrme	Error estimate (one standard deviation) for Th_SPT_CONC_PUMP_ztrrme	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ti_LPT_CONC_PUMP_gwwlhw	Error estimate (one standard deviation) for Ti_LPT_CONC_PUMP_gwwlhw	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ti_SPL_CONC_PUMP_q8ttoa	Error estimate (one standard deviation) for Ti_SPL_CONC_PUMP_q8ttoa	picomoles per liter (pmol/L)	trace_element_conc
SD1_Ti_SPT_CONC_PUMP_kgjnto	Error estimate (one standard deviation) for Ti_SPT_CONC_PUMP_kgjnto	picomoles per liter (pmol/L)	trace_element_conc
SD1_V_LPT_CONC_PUMP_zbwnah	Error estimate (one standard deviation) for V_LPT_CONC_PUMP_zbwnah	picomoles per liter (pmol/L)	trace_element_conc
SD1_V_SPL_CONC_PUMP_etyuwy	Error estimate (one standard deviation) for V_SPL_CONC_PUMP_etyuwy	picomoles per liter (pmol/L)	trace_element_conc
SD1_V_SPT_CONC_PUMP_lxljwh	Error estimate (one standard deviation) for V_SPT_CONC_PUMP_lxljwh	picomoles per liter (pmol/L)	trace_element_conc
SD1_Zn_LPT_CONC_PUMP_ltgzx7	Error estimate (one standard deviation) for Zn_LPT_CONC_PUMP_ltgzx7	picomoles per liter (pmol/L)	trace_element_conc
SD1_Zn_SPL_CONC_PUMP_n1rp4n	Error estimate (one standard deviation) for Zn_SPL_CONC_PUMP_n1rp4n	picomoles per liter (pmol/L)	trace_element_conc
SD1_Zn_SPT_CONC_PUMP_a7yqif	Error estimate (one standard deviation) for Zn_SPT_CONC_PUMP_a7yqif	picomoles per liter (pmol/L)	trace_element_conc
Flag_Ag_LPT_CONC_PUMP_lhkpni	Quality flag for Ag_LPT_CONC_PUMP_lhkpni; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ag_SPL_CONC_PUMP_jhzjha	Quality flag for Ag_SPL_CONC_PUMP_jhzjha; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ag_SPT_CONC_PUMP_bsfqc3	Quality flag for Ag_SPT_CONC_PUMP_bsfqc3; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Al_LPT_CONC_PUMP_1vbrvq	Quality flag for Al_LPT_CONC_PUMP_1vbrvq; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Al_SPL_CONC_PUMP_epg3zk	Quality flag for Al_SPL_CONC_PUMP_epg3zk; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Al_SPT_CONC_PUMP_cs5fom	Quality flag for Al_SPT_CONC_PUMP_cs5fom; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ba_LPT_CONC_PUMP_es07s2	Quality flag for Ba_LPT_CONC_PUMP_es07s2; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ba_SPL_CONC_PUMP_l0iien	Quality flag for Ba_SPL_CONC_PUMP_l0iien; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ba_SPT_CONC_PUMP_f2nfdm	Quality flag for Ba_SPT_CONC_PUMP_f2nfdm; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_bSi_LPT_CONC_PUMP_1zcy7d	Quality flag for bSi_LPT_CONC_PUMP_1zcy7d; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_bSi_SPT_CONC_PUMP_qnkatr	Quality flag for bSi_SPT_CONC_PUMP_qnkatr; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cd_LPT_CONC_PUMP_qa6u3f	Quality flag for Cd_LPT_CONC_PUMP_qa6u3f; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cd_SPL_CONC_PUMP_vgvitg	Quality flag for Cd_SPL_CONC_PUMP_vgvitg; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cd_SPT_CONC_PUMP_0gzntj	Quality flag for Cd_SPT_CONC_PUMP_0gzntj; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Co_LPT_CONC_PUMP_u2ngvi	Quality flag for Co_LPT_CONC_PUMP_u2ngvi; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Co_SPL_CONC_PUMP_2kvai5	Quality flag for Co_SPL_CONC_PUMP_2kvai5; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Co_SPT_CONC_PUMP_py5tf1	Quality flag for Co_SPT_CONC_PUMP_py5tf1; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cu_LPT_CONC_PUMP_uepqeb	Quality flag for Cu_LPT_CONC_PUMP_uepqeb; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cu_SPL_CONC_PUMP_igwmvp	Quality flag for Cu_SPL_CONC_PUMP_igwmvp; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Cu_SPT_CONC_PUMP_o3yiow	Quality flag for Cu_SPT_CONC_PUMP_o3yiow; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Fe_LPT_CONC_PUMP_wdw9n6	Quality flag for Fe_LPT_CONC_PUMP_wdw9n6; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Fe_SPL_CONC_PUMP_wiqnyf	Quality flag for Fe_SPL_CONC_PUMP_wiqnyf; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Fe_SPT_CONC_PUMP_15na7w	Quality flag for Fe_SPT_CONC_PUMP_15na7w; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mn_LPT_CONC_PUMP_kbzgqx	Quality flag for Mn_LPT_CONC_PUMP_kbzgqx; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mn_SPL_CONC_PUMP_jqsbal	Quality flag for Mn_SPL_CONC_PUMP_jqsbal; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mn_SPT_CONC_PUMP_yalvb1	Quality flag for Mn_SPT_CONC_PUMP_yalvb1; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mo_LPT_CONC_PUMP_isi23q	Quality flag for Mo_LPT_CONC_PUMP_isi23q; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mo_SPL_CONC_PUMP_gwuo7p	Quality flag for Mo_SPL_CONC_PUMP_gwuo7p; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Mo_SPT_CONC_PUMP_8knj92	Quality flag for Mo_SPT_CONC_PUMP_8knj92; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_N_15_14_LPT_DELTA_PUMP_mpupya	Quality flag for N_15_14_LPT_DELTA_PUMP_mpupya; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_N_15_14_SPT_DELTA_PUMP_stlono	Quality flag for N_15_14_SPT_DELTA_PUMP_stlono; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_N_LPT_CONC_PUMP_knaroj	Quality flag for N_LPT_CONC_PUMP_knaroj; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_N_SPT_CONC_PUMP_ozfif6	Quality flag for N_SPT_CONC_PUMP_ozfif6; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Nd_LPT_CONC_PUMP_zdatta	Quality flag for Nd_LPT_CONC_PUMP_zdatta; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Nd_SPL_CONC_PUMP_orslyj	Quality flag for Nd_SPL_CONC_PUMP_orslyj; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Nd_SPT_CONC_PUMP_je7vxa	Quality flag for Nd_SPT_CONC_PUMP_je7vxa; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ni_LPT_CONC_PUMP_sexqmr	Quality flag for Ni_LPT_CONC_PUMP_sexqmr; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ni_SPL_CONC_PUMP_xbyaz3	Quality flag for Ni_SPL_CONC_PUMP_xbyaz3; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ni_SPT_CONC_PUMP_poigjk	Quality flag for Ni_SPT_CONC_PUMP_poigjk; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_P_LPT_CONC_PUMP_orrljq	Quality flag for P_LPT_CONC_PUMP_orrljq; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_P_SPL_CONC_PUMP_cfeh2e	Quality flag for P_SPL_CONC_PUMP_cfeh2e; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_P_SPT_CONC_PUMP_x4dkcu	Quality flag for P_SPT_CONC_PUMP_x4dkcu; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_PARTICLEMASS_LPT_CONC_PUMP_peljrb	Quality flag for PARTICLEMASS_LPT_CONC_PUMP_peljrb; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_PARTICLEMASS_SPT_CONC_PUMP_yfcsrr	Quality flag for PARTICLEMASS_SPT_CONC_PUMP_yfcsrr; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Pb_LPT_CONC_PUMP_vwm4on	Quality flag for Pb_LPT_CONC_PUMP_vwm4on; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Pb_SPL_CONC_PUMP_dwirml	Quality flag for Pb_SPL_CONC_PUMP_dwirml; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Pb_SPT_CONC_PUMP_t28loo	Quality flag for Pb_SPT_CONC_PUMP_t28loo; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_PIC_LPT_CONC_PUMP_fmdem2	Quality flag for PIC_LPT_CONC_PUMP_fmdem2; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_PIC_SPT_CONC_PUMP_ngbsmo	Quality flag for PIC_SPT_CONC_PUMP_ngbsmo; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_POC_13_12_LPT_DELTA_PUMP_yoexye	Quality flag for POC_13_12_LPT_DELTA_PUMP_yoexye; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_POC_13_12_SPT_DELTA_PUMP_wydung	Quality flag for POC_13_12_SPT_DELTA_PUMP_wydung; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_POC_LPT_CONC_PUMP_e6jwva	Quality flag for POC_LPT_CONC_PUMP_e6jwva; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_POC_SPT_CONC_PUMP_vxq8vo	Quality flag for POC_SPT_CONC_PUMP_vxq8vo; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Sc_LPT_CONC_PUMP_3p9xfq	Quality flag for Sc_LPT_CONC_PUMP_3p9xfq; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Sc_SPL_CONC_PUMP_magjgm	Quality flag for Sc_SPL_CONC_PUMP_magjgm; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Sc_SPT_CONC_PUMP_xxkrjd	Quality flag for Sc_SPT_CONC_PUMP_xxkrjd; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Th_LPT_CONC_PUMP_bi43na	Quality flag for Th_LPT_CONC_PUMP_bi43na; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Th_SPL_CONC_PUMP_y2n5wt	Quality flag for Th_SPL_CONC_PUMP_y2n5wt; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Th_SPT_CONC_PUMP_ztrrme	Quality flag for Th_SPT_CONC_PUMP_ztrrme; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ti_LPT_CONC_PUMP_gwwlhw	Quality flag for Ti_LPT_CONC_PUMP_gwwlhw; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ti_SPL_CONC_PUMP_q8ttoa	Quality flag for Ti_SPL_CONC_PUMP_q8ttoa; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Ti_SPT_CONC_PUMP_kgjnto	Quality flag for Ti_SPT_CONC_PUMP_kgjnto; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_V_LPT_CONC_PUMP_zbwnah	Quality flag for V_LPT_CONC_PUMP_zbwnah; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_V_SPL_CONC_PUMP_etyuwy	Quality flag for V_SPL_CONC_PUMP_etyuwy; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_V_SPT_CONC_PUMP_lxljwh	Quality flag for V_SPT_CONC_PUMP_lxljwh; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Zn_LPT_CONC_PUMP_ltgzx7	Quality flag for Zn_LPT_CONC_PUMP_ltgzx7; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Zn_SPL_CONC_PUMP_n1rp4n	Quality flag for Zn_SPL_CONC_PUMP_n1rp4n; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag
Flag_Zn_SPT_CONC_PUMP_a7yqif	Quality flag for Zn_SPT_CONC_PUMP_a7yqif; flags were assigned following the GEOTRACES quality flag policy (see 'Data Processing Description' for definitions)	unitless	q_flag