Dataset: GN01 Dissolved REEs LDEO
Deployment: HLY1502

Dissolved REE concentrations from LDEO

Principal Investigator:

Steven L. Goldstein (Lamont-Doherty Earth Observatory, LDEO)

Co-Principal Investigator:

Brian Haley (Oregon State University, OSU)

Leopoldo D. Pena (Lamont-Doherty Earth Observatory, LDEO)

Howard Scher (University of South Carolina)

Analyst:

Paulina Pinedo-Gonzalez (Lamont-Doherty Earth Observatory, LDEO)

Yingzhe Wu (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

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

Project:

Collaborative Research: GEOTRACES Arctic Section: Nd isotopes and REEs in the Arctic (Arctic GEOTRACES Nd/eNd)

U.S. Arctic GEOTRACES Study (GN01) (U.S. GEOTRACES Arctic)

Deployment Synonyms:

GN01, U.S. GEOTRACES Arctic, 32H120150809

Data URL:

https://www.bco-dmo.org/dataset-deployment/835553/data

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Description

This dataset contains data from samples analyzed at Lamont-Doherty Earth Observatory (LDEO). Additional dissolved REE data are reported by Oregon State University (OSU) in a separate dataset (see 'Related Datasets').

Methods & Sampling

Dataset acquisition description

Samples were filtered, acidified, and split at sea. Samples were collected by Niskin bottle. Refer to the cruise report for more information on cruise operations (http://dmoserv3.whoi.edu/data_docs/GEOTRACES/Arctic/ARC01-report.pdf).

For REE concentration analyses, aliquots of 50 mL were taken from each sample. About 12 mL of each sample was then weighed and 30-300 mg of a mixed REE spike enriched in ¹⁴²Ce, ¹⁴⁵Nd, ¹⁴⁹Sm, ¹⁵³Eu, ¹⁵⁵Gd, ¹⁶¹Dy, ¹⁶⁷Er, and ¹⁷¹Yb was added. Samples were then preconcentrated offline using a SeaFast PICO system (ESI) following the methodology described in Behrens et al., 2016 and Wu et al., 2020. Resulting solutions were analyzed at Lamont Doherty Earth Observatory (Palisades, NY) using a Nu Attom ES HR-ICP-MS.

Data Processing Description

Dataset Processing Description

Data Processing:
Dissolved concentrations were determined by a combination of isotope dilution (Ce, Nd, Sm, Eu, Gd, Dy, Er, and Yb) and for La, Lu and the mono‐isotopic elements Pr, Tb, Ho, and Tm, their concentrations are calculated by comparing their intensities to intensities of non-spiked isotopes of the elements calculated by isotope dilution. We employed the REE Calculation Workbook published by Wu et al., 2020 to calculate the REE abundances. Precision was determined by repeated analyzes of seawater from a GEOTRACES intercalibration station Bermuda Atlantic Time Series (BATS; 31.7°N, 64.1°W) in the North Atlantic at 20 m and 2,000 m.

Known Problems/Issues:
Gaps in REE concentrations data are due to missing samples, data is flagged with QV:IODE code 9, missing value.

Quality Flags:
Data quality flags have been applied following the IODE scheme, defined as:
1 = good;
2 = not evaluated, not available, or unknown;
3 = questionable/suspect;
4 = bad;
9 = missing data.

BCO-DMO Processing:
- renamed fields;
- replaced "N/A#" with missing data identifier of "nd";
- added ISO8601 date/time fields.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1459716	NSF Division of Ocean Sciences
OCE-1459513	NSF Division of Ocean Sciences
OCE-1458936	NSF Division of Ocean Sciences

Instruments

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: High Resolution Inductively Coupled Plasma Mass Spectrometer (HR-ICP-MS)

Supplied Description:

High Resolution Inductively Coupled Plasma Mass Spectrometer (HR-ICP-MS). Attom ES (Nu Instruments). Rare earth element dissolved concentrations were analyzed at Lamont Doherty Earth Observatory using a Nu Attom ES HR-ICP-MS. The HR-ICP-MS is a type of mass spectrometry that uses an inductively couple plasma to ionize a liquid sample. The ions of specific mass-to-charge ratios are then quantified in a mass spectrometer.

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.

Niskin bottle

Supplied Name: Niskin

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

SeaFAST Automated Preconcentration System

Supplied Name: SeaFast PICO system (ESI)

Supplied Description:

SeaFast Automated Preconcentration System for Undiluted Seawater. Elemental Scientific Inc. (ESI), Omaha, Nebraska, USA. Rare earth element were preconcentrated using a commercially available preconcentration unit that separates the REEs.

Instrument Type

Generic Name: SeaFAST Automated Preconcentration System

Generic Description:

The seaFAST is an automated sample introduction system for analysis of seawater and other high matrix samples for analyses by ICPMS (Inductively Coupled Plasma Mass Spectrometry).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Start_Date_UTC	Date the event started (UTC); format: DD/MM/YYYY	unitless	date
End_Date_UTC	Date the event ended (UTC); format: DD/MM/YYYY	unitless	date
Sample_Depth	Sample depth	meters (m)	depth
Event_ID	Event number	unitless	event
Start_ISO_DateTime_UTC	Date and time (UTC) at start of event; format: YYYY-MM-DDThh:mmZ	unitless	ISO_DateTime_UTC
End_ISO_DateTime_UTC	Date and time (UTC) at end of event; format: YYYY-MM-DDThh:mmZ	unitless	ISO_DateTime_UTC
Start_Latitude	Latitude the event started	degrees North	lat
End_Latitude	Latitude the event ended	degrees North	lat
Start_Longitude	Longitude the event started	degrees East	lon
End_Longitude	Longitude the event ended	degrees East	lon
Flag_Ce_D_CONC_BOTTLE_pedhml	Data quality flag using IODE scheme for Ce_D_CONC_BOTTLE_pedhml	unitless	q_flag
Flag_Gd_D_CONC_BOTTLE_tregzv	Data quality flag using IODE scheme for Gd_D_CONC_BOTTLE_tregzv	unitless	q_flag
Flag_Nd_D_CONC_BOTTLE_bik2po	Data quality flag using IODE scheme for Nd_D_CONC_BOTTLE_bik2po	unitless	q_flag
Flag_Sm_D_CONC_BOTTLE_pmlcpz	Data quality flag using IODE scheme for Sm_D_CONC_BOTTLE_pmlcpz	unitless	q_flag
Flag_Dy_D_CONC_BOTTLE_sznkhf	Data quality flag using IODE scheme for Dy_D_CONC_BOTTLE_sznkhf	unitless	q_flag
Flag_Eu_D_CONC_BOTTLE_zkeses	Data quality flag using IODE scheme for Eu_D_CONC_BOTTLE_zkeses	unitless	q_flag
Flag_Ho_D_CONC_BOTTLE_jrd3wq	Data quality flag using IODE scheme for Ho_D_CONC_BOTTLE_jrd3wq	unitless	q_flag
Flag_Tm_D_CONC_BOTTLE_dbgjvc	Data quality flag using IODE scheme for Tm_D_CONC_BOTTLE_dbgjvc	unitless	q_flag
Flag_Lu_D_CONC_BOTTLE_aoadnb	Data quality flag using IODE scheme for Lu_D_CONC_BOTTLE_aoadnb	unitless	q_flag
Flag_Tb_D_CONC_BOTTLE_zupl71	Data quality flag using IODE scheme for Tb_D_CONC_BOTTLE_zupl71	unitless	q_flag
Flag_La_D_CONC_BOTTLE_8v9ps0	Data quality flag using IODE scheme for La_D_CONC_BOTTLE_8v9ps0	unitless	q_flag
Flag_Yb_D_CONC_BOTTLE_gt9iau	Data quality flag using IODE scheme for Yb_D_CONC_BOTTLE_gt9iau	unitless	q_flag
Flag_Er_D_CONC_BOTTLE_xsrukw	Data quality flag using IODE scheme for Er_D_CONC_BOTTLE_xsrukw	unitless	q_flag
Flag_Pr_D_CONC_BOTTLE_d4ydto	Data quality flag using IODE scheme for Pr_D_CONC_BOTTLE_d4ydto	unitless	q_flag
Sample_ID	GEOTRACES sample number	unitless	sample
Station_ID	Station number	unitless	station
Start_Time_UTC	Time the event started (UTC); format: hh:mm	unitless	time
End_Time_UTC	Time the event ended (UTC); format: hh:mm	unitless	time
Nd_D_CONC_BOTTLE_bik2po	Dissolved Concentration of Neodymium (Nd) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Gd_D_CONC_BOTTLE_tregzv	1-sigma error of dissolved Gd from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Nd_D_CONC_BOTTLE_bik2po	1-sigma error of dissolved Nd from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Sm_D_CONC_BOTTLE_pmlcpz	Dissolved Concentration of Samarium (Sm) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Dy_D_CONC_BOTTLE_sznkhf	Dissolved Concentration of Dysprosium (Dy) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Sm_D_CONC_BOTTLE_pmlcpz	1-sigma error of dissolved Sm from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Eu_D_CONC_BOTTLE_zkeses	Dissolved Concentration of Europium (Eu) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Dy_D_CONC_BOTTLE_sznkhf	1-sigma error of dissolved Dy from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Eu_D_CONC_BOTTLE_zkeses	1-sigma error of dissolved Eu from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Ho_D_CONC_BOTTLE_jrd3wq	Dissolved Concentration of Holmium (Ho) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Tm_D_CONC_BOTTLE_dbgjvc	Dissolved Concentration of Thulium (Tm) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Ho_D_CONC_BOTTLE_jrd3wq	1-sigma error of dissolved Ho from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Lu_D_CONC_BOTTLE_aoadnb	Dissolved Concentration of Lutetium (Lu) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Tm_D_CONC_BOTTLE_dbgjvc	1-sigma error of dissolved Tm from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Lu_D_CONC_BOTTLE_aoadnb	1-sigma error of dissolved Lu from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Tb_D_CONC_BOTTLE_zupl71	Dissolved Concentration of Terbium (Tb) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Tb_D_CONC_BOTTLE_zupl71	1-sigma error of dissolved Tb from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
La_D_CONC_BOTTLE_8v9ps0	Dissolved Concentration of Lanthanum (La) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_La_D_CONC_BOTTLE_8v9ps0	1-sigma error of dissolved La from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Yb_D_CONC_BOTTLE_gt9iau	Dissolved Concentration of Ytterbium (Yb) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Yb_D_CONC_BOTTLE_gt9iau	1-sigma error of dissolved Yb from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Er_D_CONC_BOTTLE_xsrukw	Dissolved Concentration of Erbium (Er) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Er_D_CONC_BOTTLE_xsrukw	1-sigma error of dissolved Er from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Pr_D_CONC_BOTTLE_d4ydto	Dissolved Concentration of Praseodymium (Pr) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Ce_D_CONC_BOTTLE_pedhml	Dissolved Concentration of Cerium (Ce) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Pr_D_CONC_BOTTLE_d4ydto	1-sigma error of dissolved Pr from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
Gd_D_CONC_BOTTLE_tregzv	Dissolved Concentration of Gadolinium (Gd) from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc
SD1_Ce_D_CONC_BOTTLE_pedhml	1-sigma error of dissolved Ce from bottle samples	picomoles per kilogram (pmol/kg)	trace_element_conc

Database

Contribute Data

Dataset: GN01 Dissolved REEs LDEO
Deployment: HLY1502

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: GN01 Dissolved REEs LDEODeployment: HLY1502

Dataset acquisition description

Dataset Processing Description

Dataset: GN01 Dissolved REEs LDEO
Deployment: HLY1502