Dataset: sed_comp
Deployment: NBP-96-4

Sediment composition

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:

October 1, 2002

Deployment Synonyms:

NBP9604, NBP96_4

Version Date:

2002-10-01

Data URL:

https://www.bco-dmo.org/dataset-deployment/451001/data

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Description

Sediment composition

Methods & Sampling

Dataset acquisition description

Deployment-specific acquisition description

   PI:              Bob Anderson
   of:              Lamont-Doherty Earth Observatory
   dataset:         Sediment composition
   dates:           September 07, 1996 to September 17, 1996
   location:        N: -56.9097  S: -63.8833  W: -170.1755  E: -169.2333
   project/cruise:  AESOPS/NBP96-4
   ship:            R/V Nathaniel B. Palmer
 
   Notes:  CaCO3 measured by coulometry.
   Opal measured by alkaline leach and spectrophotometry.
   The concentrations reported are for biogenic opal,
   which includes 11% by weight water (SiO2*0.4H2O).
 
   Reference:  Mortlock R.A., Froelich P.N., 1989. A simple method
   for the rapid determination of biogenic opal in pelagic
   marine sediments. Deep-Sea Research 36, 1415-1426.

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.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	event number from event log		event
sta	station number from event log		sta
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 MC = multi core		no_bcodmo_term
depth_w	water 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
CaCO3	calcium carbonate, weight percent	percent	no_bcodmo_term
Si_opal	opal, weight percent	percent	no_bcodmo_term
Si_opal_dup	opal, duplicate analysis, weight percent	percent	no_bcodmo_term
site	sediment trap mooring number		no_bcodmo_term
deploy_id	type of sampling device: MC=MultiCorer WHIMP=Woods Hole Interstitial Marine Probe		no_bcodmo_term
porosity	volume of pore water per volume of wet sediment		no_bcodmo_term
C_org	average weight percent of organic carbon	percent	no_bcodmo_term
C_org_sd	standard deviation of replicates	percent	no_bcodmo_term
biog_tot	Si_opal + CaCO3 + 2.8*C_org	percent	no_bcodmo_term
detrital	100 - biol_tot	percent	no_bcodmo_term
Pb210xs	excess Pb210 activity	dpm/gram	no_bcodmo_term
Pb210xs_sd	uncertainty in Pb210xs	dpm/gram	no_bcodmo_term
Th234xs	excess Th234 activity	dpm/gram	no_bcodmo_term
Th234xs_sd	uncertainty in Th234xs	dpm/gram	no_bcodmo_term

Database

Contribute Data

Dataset: sed_comp
Deployment: NBP-96-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: sed_compDeployment: NBP-96-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: sed_comp
Deployment: NBP-96-4