Dataset: delta-13C and delta-18O

Name: Globobulimina delta 13C and 18O isotopes from sediment cores collected on R/V Endeavor EN524 on the continental shelf off New England, May 2013 (OA, Hypoxia and Warming project)
Published: 2017-01-19
Keywords: biota, oceans

Cite This Dataset

Spatial Extent: N:40.4375 E:-70.4924 S:40.4375 W:-70.4924

Project:

Ocean Acidification, Hypoxia and Warming: Experimental Investigations into Compounded Effects of Global Change on Benthic Foraminifera (OA, Hypoxia and Warming)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Principal Investigator:

Joan M. Bernhard (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2017-01-19

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Globobulimina delta 13C and 18O isotopes from sediment cores collected on R/V Endeavor EN524 on the continental shelf off New England, May 2013 (OA, Hypoxia and Warming project)

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Description

This dataset includes Globobulimina turgida stable isotopes of carbon and oxygen from sediment cores collected on R/V Endeavor EN524 on the continental shelf off New England (40.43 N 70.5 W), May 2013

Methods & Sampling

Foraminiferal bearing sediments were collected using MC800 multicorer. All samples were from one multicore deployment (MC14), from two different multicores (CTG designated mostly for CellTracker Green studies; DC designated mostly for downcore studies). Each was sliced into selected 1-cm intervals. In the CTG core, live specimens were distinguished from dead using CellTracker Green CMFDA. Globobulimina turgida specimens were isolated from sediments and air dried. Pools of 10-15 conspecifics (depending on individual sizes) were analyzed using the Isocarb (common acid bath) prep system on the NOSAMS VG Prism-II SIRMS.

Data Processing Description

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- reformatted date from d-Mon-yy to yyyy-mm-dd

Data Files

File
Globo_isotopes.csv (Comma Separated Values (.csv), 1.45 KB) MD5:1eb34d499d13e5e65e3510fe357a6537 Primary data file for dataset ID 675272

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1219948

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
EN524		2013-05-19	R/V Endeavor	Joan M. Bernhard (Chief Scientist)	data info

Instruments

Mass Spectrometer

Supplied Name: NOSAMS VG Prism-II SIRMS

Supplied Description:

Instrument Type

Generic Name: Mass Spectrometer

Acronym: Mass Spec

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

Generic Description:

General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.

Multi Corer

Supplied Name: MC800 multicorer

Supplied Description:

Used to collect sediment samples

Instrument Type

Generic Name: Multi Corer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/51/

Generic 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.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
sample	sample identifier	unitless	sample
cruise_id	cruise identifier	unitless	cruise_id
event	event number	unitless	event
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
date	date formatted as yyyy-mm-dd	unitless	date
time_utc	UTC time formatted as HH:MM	unitless	time
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted based on ISO 8601:2004(E) with format YYYY-mm-ddTHH:MM:SS+0000	unitless	ISO_DateTime_UTC
depth_w	depth of water	meters	depth_w
depth_sediment_cm	sample depth range of with the mulitcore	centimeters	depth_core
viability	whether specimen was alive or dead at determined using CellTracker Green CMFDA	unitless	no_bcodmo_term
d13C_VPDB_corr	the ratio of stable isotopes 13C:12C measurements on living (at the time of sampling) organism; measured against Vienna Peedee Belemnite	parts per thousand (per mil	Nd
d18O_VPDB_corr	the ratio of stable isotopes 13C:12C measurements on living (at the time of sampling) organism; measured against Vienna Peedee Belemnite	parts per thousand (per mil	Nd

Status message

Database

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Dataset: delta-13C and delta-18O