http://lod.bco-dmo.org/id/dataset/925132
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
2024-04-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Solid phase measurements of sediment cores from the Cocos Ridge (Eastern Equatorial Pacific) acquired during cruise SR2113 between November - December 2021.
2024-06-20
publication
2024-06-20
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-06-20
publication
https://doi.org/10.26008/1912/bco-dmo.925132.1
Jess F. Adkins
California Institute of Technology
principalInvestigator
William M. Berelson
University of Southern California
principalInvestigator
Sijia Dong
California Institute of Technology
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: Cetiner, J. E., Berelson, W. M., Rollins, N. E., Dong, S., Adkins, J. F. (2024) Solid phase measurements of sediment cores from the Cocos Ridge (Eastern Equatorial Pacific) acquired during cruise SR2113 between November - December 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-06-20 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.925132.1 [access date]
Cocos Ridge Solid Phase Data Dataset Description: Methods and Sampling: <p>The sediment cores are taken from the Cocos Ridge in the Eastern Equatorial Pacific using a multicorer at 4 different locations. This cruise was aboard the R/V Sally Ride between 2021-11-20 and 2021-12-20.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1834475 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1834475
completed
Jess F. Adkins
California Institute of Technology
626-395-8550
MC 100-23, 1200 E. California Blvd
Pasadena
CA
91125
USA
jess@gps.caltech.edu
pointOfContact
William M. Berelson
University of Southern California
310-804-8981
Department of Earth Sciences (ZHS 227) 3651 Trousdale Pky.
Los Angeles
CA
90089-0740
USA
berelson@usc.edu
pointOfContact
Sijia Dong
California Institute of Technology
213-359-9725
1200 E California Blvd. MC 131-24
Pasadena
CA
91125
USA
sijiadong@nju.edu.cn
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Station
Date
Latitude
Longitude
Water_Column_Depth
Sediment_Depth
Porosity
CaCO3
Organic_C
Elemental Analyzer (EA, Costech)
Liaison autosampler
Ocean Instruments MC 800 Multicolor
Picarro Cavity Ring-Down Spectrometer (G2131-i)
theme
None, User defined
station
date
latitude
longitude
depth_w
depth core
sediment porosity
Calcium Carbonate
particulate organic Carbon (POC)
featureType
BCO-DMO Standard Parameters
Elemental Analyzer
Laboratory Autosampler
Multi Corer
Spectrophotometer
instrument
BCO-DMO Standard Instruments
SR2113
service
Deployment Activity
Cocos Ridge, Eastern Equatorial Pacific
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.
Collaborative Research: New approaches to study calcium carbonate dissolution on the sea floor and its impact on paleo-proxy interpretations
https://osprey.bco-dmo.org/project/917871
Collaborative Research: New approaches to study calcium carbonate dissolution on the sea floor and its impact on paleo-proxy interpretations
<p><em>NSF Award Abstract:</em><br />
The uptake of anthropogenic CO2 by the ocean will eventually be mitigated by the dissolution of CaCO3 on the sea floor. Dissolution is an important component of the carbon cycle in models used for climate projections though the relative importance of where it occurs (water column versus sediments) and the rates and processes involved are not fully understood. This ambitious field and laboratory study is designed to advance our knowledge of the important factors that control carbonate dissolution/ preservation in deep ocean sediments. Using a novel tracer approach and multiple in situ sampling strategies, the project will investigate sea floor dissolution rates, their kinetic controlling factors, the depth in sediments at which dissolution occurs, the role that oxidation of particulate organic carbon plays, and the ramifications of solid phase alteration for the use of geochemically-based paleoceanographic proxies. The project will foster further development of benthic lander technology and yield key information relating sea floor conditions to carbonate dissolution rate, thereby helping to constrain the rate at which the ocean can neutralize the impacts of ocean acidification. Graduate and undergraduate students will be trained and the research team will use film and animation to bring this work to a broader audience through a collaboration with the Los Angeles Natural History Museum.</p>
<p>The research team has developed a new approach to quantify calcium carbonate dissolution rates based on 13-C labeled carbonate substrates, a technique which is significantly more sensitive than traditional approaches based on alkalinity and/or calcium measurements. This has opened a range of new opportunities and insights into the governing mechanisms and rates of calcium carbonate dissolution, a challenging and long-standing geochemical problem. Carbonate dissolution rates on the sea floor will be directly assessed by benthic chamber flux measurements of alkalinity and calcium as well as pore water models of TCO2 and alkalinity and their isotopic composition. The potential impacts of organic carbon remineralization will be measured through oxygen and nutrient flux determinations, pore water gradients and modeling. Labeled 13C-enriched calcite will serve as a tracer of near surface dissolution processes when added to benthic chambers and of down-core dissolution processes using 13C-labeled rods inserted into the sediment column. These in situ experiments of labeled carbonate dissolution will be the first of their kind. To complement these measurements, the team will continue development of a rhizon-based pore water sampler that works on a multi-corer at all ocean depths. Field experiments will be conducted at sea at 4-6 sites in a transect through water column supersaturation to undersaturation between Panama and the Galapagos. Dissolution rate measurements, coupled with analyses of cation/Ca ratios in CaCO3 foraminiferal shells will help calibrate the impact of dissolution on paleo-proxy interpretations. Further, analyses of sediment calcite and aragonite fractions will help explain net dissolution and sediment response with time. The results from this study should help to better parameterize sediment variables in ocean-climate models (GCMs), which has important implications for predicting the consequences of ocean acidification and the modeling of paleoceanographic records. The methodologies and new techniques will surely be adopted by other researchers, therefore impacting the larger geochemical community.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
CDISP 2021
largerWorkCitation
project
eng; USA
oceans
Cocos Ridge, Eastern Equatorial Pacific
-88.2609
-86.5999
5.35008
6.78487
2021-12-01
2021-12-14
Cocos Ridge, Eastern Equatorial Pacific
0
BCO-DMO catalogue of parameters from Solid phase measurements of sediment cores from the Cocos Ridge (Eastern Equatorial Pacific) acquired during cruise SR2113 between November - December 2021.
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/925222.rdf
Name: Station
Units: unitless
Description: <p>Station ID number</p>
http://lod.bco-dmo.org/id/dataset-parameter/925223.rdf
Name: Date
Units: unitless
Description: <p>Date of porewater sampler/multi-corer deployment in ISO format (yyyy-mm-dd)</p>
http://lod.bco-dmo.org/id/dataset-parameter/925224.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Station latitude, south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/925225.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Station longitude, west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/925226.rdf
Name: Water_Column_Depth
Units: meters (m)
Description: <p>Water column depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/925227.rdf
Name: Sediment_Depth
Units: centimeters (cm)
Description: <p>Sediment depth relative to sediment-water interface</p>
http://lod.bco-dmo.org/id/dataset-parameter/925228.rdf
Name: Porosity
Units: percent (%)
Description: <p>Porosity</p>
http://lod.bco-dmo.org/id/dataset-parameter/925229.rdf
Name: CaCO3
Units: percent (%)
Description: <p>CaCO3 (carbonate) content; Particulate Inorganic Carbon (PIC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/925230.rdf
Name: Organic_C
Units: percent (%)
Description: <p>Organic carbon content; Particulate Organic Carbon (POC)</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
4341
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/9d3f651c-188b-4f75-ba9a-25303c26e4db/content
download
https://doi.org/10.26008/1912/bco-dmo.925132.1
download
onLine
dataset
<p>The sediment cores are taken from the Cocos Ridge in the Eastern Equatorial Pacific using a multicorer at 4 different locations. This cruise was aboard the R/V Sally Ride between 2021-11-20 and 2021-12-20.</p>
Specified by the Principal Investigator(s)
<p>Porosity was obtained by mass of water loss upon drying and assigned a&nbsp;standard salinity (34.6 ppt) and sediment grain density (2.6 g/cm3). Bulk sediment samples were&nbsp;dried in an oven at 50°C for 72 h and then homogenized for TC and mineralogical analyses.</p>
<p>2-10&nbsp;mg of the samples were used for PIC (% CaCO3) and delta 13C of PIC and analyzed on a Picarro Cavity&nbsp;Ring-Down Spectrometer (G2131-i) with Liaison autosampler, following acidification. TC and delta 13C of TC measurements were conducted using an Elemental Analyzer (EA, Costech) coupled to&nbsp;a Picarro Cavity Ring-Down Spectrometer (G2131-i).</p>
<p>Particulate Organic Carbon (POC) was calculated by subtracting PIC from TC. Uncertainties in PIC and TC concentrations were evaluated based on the average offset between duplicate sample measurements and were identified to be ± 0.04 % PIC (7 pairs of duplicates) and ± 0.03 % TC (5 pairs of duplicates).&nbsp;Uncertainty in delta 13C was evaluated based on the standard error of the measured optical calcite&nbsp;standard and was 0.02&nbsp;‰.</p>
<p>Mineralogy of the sediment was measured with a Bruker D8 Advance&nbsp;X-Ray Diffraction (XRD). Roughly 200 mg of each ground sediment sample was mounted onto a&nbsp;rotating disc and scanned for ~1 h. Data analysis was conducted using the software Jade.</p>
Specified by the Principal Investigator(s)
* Added sample acquisition description (approved by submitter)
* Adjusted parameter names to comply with database requirements
Specified by BCO-DMO Data Managers
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
Elemental Analyzer (EA, Costech)
Elemental Analyzer (EA, Costech)
PI Supplied Instrument Name: Elemental Analyzer (EA, Costech) PI Supplied Instrument Description:Elemental Analyzer (EA, Costech) coupled to a Picarro Cavity Ring-Down Spectrometer (G2131-i) was used to measure Total Carbon Instrument Name: Elemental Analyzer Instrument Short Name: Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/
Liaison autosampler
Liaison autosampler
PI Supplied Instrument Name: Liaison autosampler PI Supplied Instrument Description:A Picarro Cavity Ring-Down Spectrometer (G2131-i) coupled to a Liaison autosampler was used to measure PIC and delta13C of PIC. Instrument Name: Laboratory Autosampler Instrument Short Name: Instrument Description: Laboratory apparatus that automatically introduces one or more samples with a predetermined volume or mass into an analytical instrument.
Ocean Instruments MC 800 Multicolor
Ocean Instruments MC 800 Multicolor
PI Supplied Instrument Name: Ocean Instruments MC 800 Multicolor PI Supplied Instrument Description:Ocean Instruments MC 800 Multicolor was used to collect sediment cores. Instrument Name: Multi Corer Instrument Short Name:Multi Corer Instrument Description: The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/51/
Picarro Cavity Ring-Down Spectrometer (G2131-i)
Picarro Cavity Ring-Down Spectrometer (G2131-i)
PI Supplied Instrument Name: Picarro Cavity Ring-Down Spectrometer (G2131-i) PI Supplied Instrument Description:Elemental Analyzer (EA, Costech) coupled to a Picarro Cavity Ring-Down Spectrometer (G2131-i) was used to measure Total Carbon.
A Picarro Cavity Ring-Down Spectrometer (G2131-i) coupled to a Liaison autosampler was used to measure PIC and delta13C of PIC. Instrument Name: Spectrophotometer Instrument Short Name:Spectrophotometer Instrument Description: An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
Cruise: SR2113
SR2113
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2113
Jess F. Adkins
California Institute of Technology
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel