http://lod.bco-dmo.org/id/dataset/680091
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2017-02-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Particulate multi-element geochemical concentrations, dissolved barium concentrations and barium-isotopic data collected during the R/V Blue Heron cruise BH15-11 in Lake Superior during August 2015
2017-03-24
publication
2017-03-24
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2017-03-28
publication
https://doi.org/10.1575/1912/bco-dmo.680972
Tristan J. Horner
Woods Hole Oceanographic Institution
principalInvestigator
Helena Pryer
University of Bristol, UK
principalInvestigator
Richard D. Ricketts
University of Minnesota Duluth
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Horner, T., Pryer, H., Ricketts, R. (2017) Particulate multi-element geochemical concentrations, dissolved barium concentrations and barium-isotopic data collected during the R/V Blue Heron cruise BH15-11 in Lake Superior during August 2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-03-24 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.680972 [access date]
Particulate multi-element geochemical concentrations - Lake Superior Dataset Description: <p>This dataset includes geochemical profiles of water samples collected in August 2015 at two stations in the western arm of Lake Superior.</p>
<p><strong>These data were published in:</strong><br />
Tristan J. Horner, Helena V. Pryer, Sune G. Nielsen, Peter W. Crockford, Julia M. Gauglitz, Boswell A. Wing &amp; Richard D. Ricketts (2017) Pelagic barite precipitation at micromolar ambient sulfate. Nature Communications 8, Article number: 1342 (2017) doi:10.1038/s41467-017-01229-5</p>
<p><strong>Other relevant files and publications:</strong><br />
Horner, T. J., Kinsley, C. W., &amp; Nielsen, S. G. (2015). Barium-isotopic fractionation in seawater mediated by barite cycling and oceanic circulation. Earth and Planetary Science Letters, 430, 511-522.</p> Methods and Sampling: <p>Sampling was performed aboard the RV Blue Heron during cruise BH15-11, which sailed from Duluth MN to Duluth MN during August 2015. Best-practice metal-clean protocols were followed to the greatest extent possible before, during, and after the cruise using only acid-washed sample containers, filters, labware, etc. Particulate sampling comprised one cast at FWM and two casts at WM. The first water drawn from each Nisken was used to fill a 20 mL high-density polyethylene bottle for analysis of total dissolvable barium concentrations and barium-isotopic compositions; the remaining water (~8 L) was transferred to 10 L low-density polyethylene cubitainers to be taken below deck for filtration.</p>
<p>Samples were filtered immediately after collection using negative pressure from a central vacuum line. Each sample was drawn across a polyethersulphone filter membrane (0.45 μm cutoff) from a collapsible cubitainer. Filters were held in place using acid-cleaned Swinnex filter holders (EMD Millipore) and connected to the tubing lines with Luer taper fittings; filters were stored before and after use in sealed polycarbonate petri slide holders and manipulated using plastic forceps. Filtration proceeded for a minimum of three hours or until the filters clogged, at which point the filters were removed from their holders, stored, and the water level recorded; filtered volumes ranged from 0.5-3 L.</p>
<p>Particulate samples were prepared for analysis by leaching in 0.6 M hydrochloric acid at 80 °C for ≥16 hours. Total dissolvable (i.e. unfiltered) samples were weighed and acidified with hydrochloric acid to a concentration of 0.01 M. Samples were left to equilibrate for several months before any sample processing took place.</p>
<p>Following multi-element geochemical analyses—but before ion-exchange chromatography—all samples were dried and spiked with an appropriate amount of barium double spike to ensure the ratio of spike- to sample-derived barium was between one and two. Samples were additionally fluxed in a 1:1 mixture of concentrated hydrogen peroxide and nitric acid for ≥16 hours at 135 °C to oxidize any organic matter in the sample that could interfere with column chemistry or mass spectrometry.</p>
<p><strong>Problem report:</strong><br />
Two minor issues to note:<br />
- The shallowest particulate samples contained insufficient barium to perform a precise isotopic measurement. As such, samples from these depths were ‘pooled’ to yield a depth-integrated value; the depth noted for these pooled samples reflects the average depth of the pooled sample, weighted by the fractional contribution to the total (measured) barium present in each pooled sample. This pooling does not apply to the multi-element geochemical data as these measurements were performed on separate aliquots.</p>
<p>- One sample yielded an anomalous total particulate titanium concentration (002.02.12) and one sample yielded an anomalous total particulate aluminum concentration (002.02.10); these have been listed as ‘nd’.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1430015 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1430015
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1443577 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1443577
completed
Tristan J. Horner
Woods Hole Oceanographic Institution
508-289-3825
266 Woods Hole Rd. Clark 448, MS# 25
Woods Hole
MA
02543
United States
thorner@whoi.edu
pointOfContact
Helena Pryer
University of Bristol, UK
Senate House, Tyndall Avenue
Bristol, BS8 1TH
UK
helena.pryer@bristol.ac.uk
pointOfContact
Richard D. Ricketts
University of Minnesota Duluth
Duluth
MN
55812
USA
ricketts@d.umn.edu
pointOfContact
asNeeded
Unknown
ISO_DateTime_UTC
lat
lon
depth_w
sta
sample
Rosette_Position
depth
CTDTMP
Ba_TD_CONC_BOTTLE
Ba_TD_CONC_BOTTLE_stdev
Ba_138_TD_DELTA_BOTTLE
Ba_138_TD_DELTA_BOTTLE_stdev
Al_TP_CONC_BOTTLE
Al_TP_CONC_BOTTLE_stdev
Ba_TP_CONC_BOTTLE
Ba_TP_CONC_BOTTLE_stdev
Ca_TP_CONC_BOTTLE
Ca_TP_CONC_BOTTLE_stdev
Cd_TP_CONC_BOTTLE
Cd_TP_CONC_BOTTLE_stdev
Fe_TP_CONC_BOTTLE
Fe_TP_CONC_BOTTLE_stdev
Mn_TP_CONC_BOTTLE
Mn_TP_CONC_BOTTLE_stdev
P_TP_CONC_BOTTLE
P_TP_CONC_BOTTLE_stdev
Sr_TP_CONC_BOTTLE
Sr_TP_CONC_BOTTLE_stdev
Ti_TP_CONC_BOTTLE
Ti_TP_CONC_BOTTLE_stdev
V_TP_CONC_BOTTLE
V_TP_CONC_BOTTLE_stdev
Y_TP_CONC_BOTTLE
Y_TP_CONC_BOTTLE_stdev
Ba_138_TP_DELTA_BOTTLE
Ba_138_TP_DELTA_BOTTLE_stdev
ThermoFisher ELEMENT 2 ICP-MS
ThermoFisher Neptune multi-collector ICP-MS at the WHOI Plasma Facility
theme
None, User defined
ISO_DateTime_UTC
latitude
longitude
depth_w
station number
sample identification
bottle
depth
water temperature at measurement depth
Barium
standard deviation
Aluminum
Calcium
trace element concentration
Iron
Manganese
featureType
BCO-DMO Standard Parameters
Inductively Coupled Plasma Mass Spectrometer
Inductively Coupled Plasma Mass Spectrometer
Niskin bottle
instrument
BCO-DMO Standard Instruments
BH15-11
service
Deployment Activity
western arm of Lake Superior
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
EAGER - Introducing Early Career Scientists to Research on the Great Lakes
https://osprey.bco-dmo.org/project/679912
EAGER - Introducing Early Career Scientists to Research on the Great Lakes
<p>NSF Award Abstract:</p>
<p>This proposal to fund a research training cruise on the University of Minnesota's R/V Blue Heron for early career scientists from the Great Lakes basin. The proposed work will have two goals: 1) teach early career lacustrine scientists how to acquire, plan for, and manage cruises aboard UNOLS ships, possibly having some impact on the long-term decrease in requests for ship time on UNOLS ships in general; and 2) expose members of the Great Lakes scientific community, which has an abysmally low submittal rate of proposals to NSF requesting UNOLS ships, to UNOLS and the academic fleet. This project mirrors the successful Chief Scientist training program that Dr. Claire Reimers at Oregon State University has run on ocean-going ships such as the R/V Wecoma, New Horizon and Endeavor.<br />
Intellectual Merit :<br />
The training cruise envisioned herein will allow early career scientists to collect seed data<br />
and test hypotheses for future proposals to NSF.<br />
Broader Impacts :<br />
This proposal intends to educate the next generation of researchers about the capabilities<br />
of UNOLS. This type of outreach between UNOLS and potential users is not only important for<br />
the broader scientific community, but doubly important for the Great Lakes community which<br />
seems resistant to using assets like the UNOLS fleet.</p>
Early Career Great Lakes research
largerWorkCitation
project
Calibration of a Novel Nutrient Paleoproxy in the Southern Ocean
https://osprey.bco-dmo.org/project/680957
Calibration of a Novel Nutrient Paleoproxy in the Southern Ocean
<p>NSF Award Abstract:</p>
<p>Human observations of Earth's climate span only a narrow window of Earth History. Understanding how and why Earth's climate changed before human observations can be overcome through the measurement and interpretation of the chemical composition of marine sediments. Accurate interpretation of these records -- also known as "proxy" records, because they stand in for direct measurements of environmental conditions in the past -- first requires that the behavior of the proxy be properly calibrated against direct observations in modern environments. This project will develop a novel proxy for marine nutrient utilization based on a comprehensive characterization of the chemical composition of particulate organic matter in the Southern Ocean. The formation and export of organic matter in the ocean requires nutrients, consumes carbon, and can influence the global air-sea balance of carbon dioxide. New proxies and calibrations offer novel ways of looking at Earth's climate history and can potentially illuminate interactions within marine ecosystems.</p>
<p>The efficiency of the biological carbon pump depends critically on the availability and utilization of marine nutrients, particularly in the Southern Ocean. However, ambiguity in, and disagreement between current nutrient utilization paleoproxies renders reconstruction of past nutrient regimes uncertain. Cadmium -- a known proxy for phosphate -- offers a means to circumvent many of the known limitations of existing nutrient proxies, but requires a full isotopic characterization before its application. In this project, researchers will trace the stable isotopic composition of cadmium recorded in organic matter using multiple collector inductively coupled plasma mass spectrometry. The researchers will make isotopic measurements across numerous surface nutrient regimes in the Southern Ocean, with a focus on three critical geochemical transitions: the formation of organic carbon at the sea surface, its transit and decomposition through the ocean's interior, and its behavior during burial on the sea floor. This sea surface-to-sea floor calibration will thus comprehensively determine the utility and fidelity of a novel nutrient proxy, allowing a more accurate view of how Earth's climate was related to ocean biogeochemistry in the past.</p>
Novel Nutrient Paleoproxy
largerWorkCitation
project
eng; USA
oceans
western arm of Lake Superior
-91.24625
-89.821389
46.998528
47.331611
2015-08-26
2015-08-27
From projects that focused on the following 2 locations: 1. Great Lakes 2. Southern Ocean
0
BCO-DMO catalogue of parameters from Particulate multi-element geochemical concentrations, dissolved barium concentrations and barium-isotopic data collected during the R/V Blue Heron cruise BH15-11 in Lake Superior during August 2015
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/685866.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>collection date and time; ISO formatted: yyyy-mm-ddThh:mm:ss.sss [UTC]</p>
http://lod.bco-dmo.org/id/dataset-parameter/685867.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/685868.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/685869.rdf
Name: depth_w
Units: meters
Description: <p>depth of the water; bottom depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/685870.rdf
Name: sta
Units: unitless
Description: <p>station identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/685871.rdf
Name: sample
Units: unitless
Description: <p>sample identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/685872.rdf
Name: Rosette_Position
Units: unitless
Description: <p>bottle position on rosette</p>
http://lod.bco-dmo.org/id/dataset-parameter/685873.rdf
Name: depth
Units: meters
Description: <p>sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/685874.rdf
Name: CTDTMP
Units: degrees Celcius
Description: <p>water temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/685875.rdf
Name: Ba_TD_CONC_BOTTLE
Units: nanomoles per liter
Description: <p>total dissolvable barium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685876.rdf
Name: Ba_TD_CONC_BOTTLE_stdev
Units: nanomoles per liter
Description: <p>total dissolvable barium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685877.rdf
Name: Ba_138_TD_DELTA_BOTTLE
Units: per mil relative to NIST SRM 3104a
Description: <p>total dissolvable barium-isotopic compositions</p>
http://lod.bco-dmo.org/id/dataset-parameter/685878.rdf
Name: Ba_138_TD_DELTA_BOTTLE_stdev
Units: per mil relative to NIST SRM 3104a
Description: <p>total dissolvable barium-isotopic compositions standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685879.rdf
Name: Al_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate aluminum concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685880.rdf
Name: Al_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate aluminum concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685881.rdf
Name: Ba_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate barium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685882.rdf
Name: Ba_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate barium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685883.rdf
Name: Ca_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate calcium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685884.rdf
Name: Ca_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate calcium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685885.rdf
Name: Cd_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate cadmium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685886.rdf
Name: Cd_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate cadmium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685887.rdf
Name: Fe_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate iron concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685888.rdf
Name: Fe_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate iron concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685889.rdf
Name: Mn_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate manganese concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685890.rdf
Name: Mn_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate manganese concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685891.rdf
Name: P_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate phosphorus concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685892.rdf
Name: P_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate phosphorus concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685893.rdf
Name: Sr_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate strontium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685894.rdf
Name: Sr_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate strontium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685895.rdf
Name: Ti_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate titanium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685896.rdf
Name: Ti_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate titanium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685897.rdf
Name: V_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate vanadium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685898.rdf
Name: V_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate vanadium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685899.rdf
Name: Y_TP_CONC_BOTTLE
Units: picomoles per liter
Description: <p>total particulate yttrium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/685900.rdf
Name: Y_TP_CONC_BOTTLE_stdev
Units: picomoles per liter
Description: <p>total particulate yttrium concentration standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/685901.rdf
Name: Ba_138_TP_DELTA_BOTTLE
Units: per mil relative to NIST SRM 3104a
Description: <p>total particulate barium-isotopic compositions</p>
http://lod.bco-dmo.org/id/dataset-parameter/685902.rdf
Name: Ba_138_TP_DELTA_BOTTLE_stdev
Units: per mil relative to NIST SRM 3104a
Description: <p>total particulate barium-isotopic compositions standard deviation</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
7435
https://darchive.mblwhoilibrary.org/bitstream/1912/8836/1/data_particulate-and-dissolved-lake-superior-geochemistry.tsv
download
https://doi.org/10.1575/1912/bco-dmo.680972
download
onLine
dataset
<p>Sampling was performed aboard the RV Blue Heron during cruise BH15-11, which sailed from Duluth MN to Duluth MN during August 2015. Best-practice metal-clean protocols were followed to the greatest extent possible before, during, and after the cruise using only acid-washed sample containers, filters, labware, etc. Particulate sampling comprised one cast at FWM and two casts at WM. The first water drawn from each Nisken was used to fill a 20 mL high-density polyethylene bottle for analysis of total dissolvable barium concentrations and barium-isotopic compositions; the remaining water (~8 L) was transferred to 10 L low-density polyethylene cubitainers to be taken below deck for filtration.</p>
<p>Samples were filtered immediately after collection using negative pressure from a central vacuum line. Each sample was drawn across a polyethersulphone filter membrane (0.45 μm cutoff) from a collapsible cubitainer. Filters were held in place using acid-cleaned Swinnex filter holders (EMD Millipore) and connected to the tubing lines with Luer taper fittings; filters were stored before and after use in sealed polycarbonate petri slide holders and manipulated using plastic forceps. Filtration proceeded for a minimum of three hours or until the filters clogged, at which point the filters were removed from their holders, stored, and the water level recorded; filtered volumes ranged from 0.5-3 L.</p>
<p>Particulate samples were prepared for analysis by leaching in 0.6 M hydrochloric acid at 80 °C for ≥16 hours. Total dissolvable (i.e. unfiltered) samples were weighed and acidified with hydrochloric acid to a concentration of 0.01 M. Samples were left to equilibrate for several months before any sample processing took place.</p>
<p>Following multi-element geochemical analyses—but before ion-exchange chromatography—all samples were dried and spiked with an appropriate amount of barium double spike to ensure the ratio of spike- to sample-derived barium was between one and two. Samples were additionally fluxed in a 1:1 mixture of concentrated hydrogen peroxide and nitric acid for ≥16 hours at 135 °C to oxidize any organic matter in the sample that could interfere with column chemistry or mass spectrometry.</p>
<p><strong>Problem report:</strong><br />
Two minor issues to note:<br />
- The shallowest particulate samples contained insufficient barium to perform a precise isotopic measurement. As such, samples from these depths were ‘pooled’ to yield a depth-integrated value; the depth noted for these pooled samples reflects the average depth of the pooled sample, weighted by the fractional contribution to the total (measured) barium present in each pooled sample. This pooling does not apply to the multi-element geochemical data as these measurements were performed on separate aliquots.</p>
<p>- One sample yielded an anomalous total particulate titanium concentration (002.02.12) and one sample yielded an anomalous total particulate aluminum concentration (002.02.10); these have been listed as ‘nd’.</p>
Specified by the Principal Investigator(s)
<p>Elemental quantification in sample solutions was achieved via comparison of blank-corrected ion beam intensities to those of a reference curve constructed from measurement of eight standards with known concentrations (seven serially diluted standards plus origin). Ion beam intensities of barium, cadmium, and yttrium were measured in low-mass resolution mode whereas aluminum, calcium, iron, manganese, phosphorus, strontium, titanium, and vanadium were measured in medium-mass resolution mode; In was monitored in both modes and internal normalization was performed separately for low- and medium-mass resolution elements. Analytical uncertainties from ICP-MS analysis refer to the propagated uncertainties from ion counting statistics, In normalization, and from the goodness-of-fit of the standard reference curve. Measured concentrations were converted to Lake Superior particulate concentrations by subtracting the blank from the leachate and then normalizing by the measured volume of water passed through each filter.</p>
<p>Barium-isotopic data reduction was performed using baseline-corrected ion beams corresponding to m/z 131 (Xe, xenon), 135 (Ba), 136 (Xe; Ba; Ce, cerium), 137 (Ba), 138 (Ba; La, lanthanum; Ce), 139 (La) and 140 (Ce), which were measured simultaneously. Barium-isotopic compositions were calculated using the three-dimensional geometric interpretation of the double spike problem, with data reported in parts per one thousand deviations (‰) relative to NIST SRM 3104a.</p>
<p><strong>BCO-DMO Processing Notes:</strong><br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
ThermoFisher ELEMENT 2 ICP-MS
ThermoFisher ELEMENT 2 ICP-MS
PI Supplied Instrument Name: ThermoFisher ELEMENT 2 ICP-MS PI Supplied Instrument Description:Sample leachates were analyzed for their multi-element geochemical compositions Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/
ThermoFisher Neptune multi-collector ICP-MS at the WHOI Plasma Facility
ThermoFisher Neptune multi-collector ICP-MS at the WHOI Plasma Facility
PI Supplied Instrument Name: ThermoFisher Neptune multi-collector ICP-MS at the WHOI Plasma Facility PI Supplied Instrument Description:Used for Barium-isotopic analyses. Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/
PI Supplied Instrument Name: PI Supplied Instrument Description:For sample collection Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Cruise: BH15-11
BH15-11
R/V Blue Heron
Community Standard Description
International Council for the Exploration of the Sea
R/V Blue Heron
vessel
R/V Blue Heron
Community Standard Description
International Council for the Exploration of the Sea
R/V Blue Heron
vessel