Dataset: Coral Isotope Ratios from Mini Core
Deployment: RAPID_Kiritimati_2014-2016

Isotopic ratios d18O and d13C from coral mini core samples

Co-Principal Investigator:

Kim Cobb (Georgia Institute of Technology, GA Tech)

Ruth D Gates (Hawaii Institute of Marine Biology)

Contact:

Austin Landry Bennett (Georgia Institute of Technology, GA Tech)

Kim Cobb (Georgia Institute of Technology, GA Tech)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

RAPID: Tracking coral reef impacts of the 2014/2015 El Nino event (RAPID Kiritimati)

Data URL:

https://www.bco-dmo.org/dataset-deployment/660102/data

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Description

This dataset includes stable isotope ratios (d18O and d13C) from mini-core coral samples taken at Kiritimati in the Northern Line Islands on 01 Apr 2016.

Methods & Sampling

Dataset acquisition description

Mini-cores of a 1" diameter were recovered from large living coral colonies using a hydraulic drilling rig (Nemo Powertools drill). Oxygen isotopic (d18O and d13C) content of the coral skeletal aragonite were sampled every 1mm down-core.

Cores were taken from the following locations on 1 April 2016:

Kiritimati, Drill Site, 1.954383 -157.488350
Kiritimati Lagoon Site, 1.974833 -157.452483

Data Processing Description

Dataset Processing Description

BCO-DMO Data Manager Processing Notes:
* added a conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions
* d13C and d18O values rounded to three decimal places
* column added for sample_id and data from all samples concatenated
* added lat, lon, and date of sampling

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1446274	NSF Division of Ocean Sciences

Instruments

Drill Core

Supplied Name: Nemo Powertools drill

Supplied Description:

Instrument Type

Generic Name: Drill Core

Generic Description:

A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.

Core drills are used frequently in mineral exploration where the coring may be several hundred to several thousand feet in length. The core samples are recovered and examined by geologists for mineral percentages and stratigraphic contact points. This gives exploration companies the information necessary to begin or abandon mining operations in a particular area.

Mass Spectrometer

Supplied Name: ThermoFisher Delta V Plus

Supplied Description:

ThermoFisher Delta V Plus mass spectrometer with Kiel prep device.

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.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
depth	Depth of sample in core	mm	depth_core
d18O	Ratio of stable isotopes oxygen-18 (18O) and oxygen-16.	dimensionless	no_bcodmo_term
d13C	Ratio of stable isotopes 13C to 12C.	dimensionless	no_bcodmo_term
sample_id	Sample ID of core	unitless	sample
lat	Latitude of sample	decimal degrees	lat
lon	Longitude of sample	decimal degrees	lon
date	Date (local) in format yyyy-mm-dd	unitless	date

Database

Contribute Data

Dataset: Coral Isotope Ratios from Mini Core
Deployment: RAPID_Kiritimati_2014-2016

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Coral Isotope Ratios from Mini CoreDeployment: RAPID_Kiritimati_2014-2016

Dataset acquisition description

Dataset Processing Description

Dataset: Coral Isotope Ratios from Mini Core
Deployment: RAPID_Kiritimati_2014-2016