Dataset: sed_C14
Deployment: NBP-98-2

C14 dates from sediment cores

Principal Investigator:

Robert F. Anderson (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS Antarctic Environment and Southern Ocean Process Study (AESOPS)

Version:

September 24, 2002

Deployment Synonyms:

NBP9802, NBP98_2

Version Date:

2002-09-24

Data URL:

https://www.bco-dmo.org/dataset-deployment/451127/data

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Description

C14 dates from sediment cores

Methods & Sampling

Dataset acquisition description

Deployment-specific acquisition description

   PI:              Bob Anderson
   of:              Lamont-Doherty Earth Observatory
   dataset:         C14 dates from sediment cores
   dates:           March 03, 1998 to March 25, 1998
   location:        N: -56.9415  S: -66.1422  W: -170.2333  E: -169.4922
   project/cruise:  AESOPS/NBP98-2 Ross Sea Benthic Processes Cruise
   ship:            R/V Nathaniel B. Palmer
 
   Note:  Carbon-14 age dating was performed at National Ocean Sciences
   Accelerator Mass Spectrometry Facility (NOSAMS) in Woods Hole, MA

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Gravity Corer

Supplied Description:

Instrument Type

Generic Name: Gravity Corer

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

Generic Description:

The gravity corer allows researchers to sample sediment layers at the bottom of lakes or oceans. The coring device is deployed from the ship and gravity carries it to the seafloor. (http://www.whoi.edu/instruments/viewInstrument.do?id=1079).

Multi Corer

Supplied Description:

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.

Piston Corer

Supplied Description:

Instrument Type

Generic Name: Piston Corer

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

Generic Description:

The piston corer is a type of bottom sediment sampling device. A long, heavy tube is plunged into the seafloor to extract samples of mud sediment. A piston corer uses a "free fall" of the coring rig to achieve a greater initial force on impact than gravity coring. A sliding piston inside the core barrel reduces inside wall friction with the sediment and helps to evacuate displaced water from the top of the corer. A piston corer is capable of extracting core samples up to 90 feet in length.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	event number from event log		event
sta	station number from event log		no_bcodmo_term
lat	latitude, minus value means South	decimal degrees	lat
lon	longitude, minus value means West	decimal degrees	lon
core_type	type of coring instrument used, where GC = gravity core where PC = piston core where MC = multi core		no_bcodmo_term
depth_w	ocean depth	meters	depth_w
depth_core	depth in core, mid-point of interval sampled	centimeters	no_bcodmo_term
depth_core_sd	depth in core, standard deviation	centimeters	no_bcodmo_term
C_source	sample carbon source, where: CaCO3_b = bulk CaCO3 sed_cf = sediment, coarse fraction foram = Foraminifera		no_bcodmo_term
dC13	delta C13	per mil (ppt)	no_bcodmo_term
Fm	fraction modern - a standard parameter reported by AMS labs. It is a unitless parameter.		no_bcodmo_term
Fm_err	fraction modern error		no_bcodmo_term
C14_age	carbon-14 age dating (uncorrected)	years	no_bcodmo_term
C14_age_err	carbon-14 age error, +/- one sigma	years	no_bcodmo_term

Database

Contribute Data

Dataset: sed_C14
Deployment: NBP-98-2

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: sed_C14Deployment: NBP-98-2

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: sed_C14
Deployment: NBP-98-2