Dataset: sed_comp
Deployment: TT041

Sediment Composition from Cores

Principal Investigator:

Dr Warren Prell (Brown University)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Arabian Sea (Arabian Sea)

Version:

December 16, 2002

Deployment Synonyms:

TTN041, TN041, TTN-041

Version Date:

2002-12-16

Data URL:

https://www.bco-dmo.org/dataset-deployment/450757/data

Expand/Collapse All

Description

Sediment Composition from Cores

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

  PI:              Warren Prell
  of:              Brown University
  dataset:         Sediment Composition
  dates:           November 1994 and May 1995
  location:        N: 17.812  S: 10.0345  W: 57.5058  E: 65.0852
  project/cruise:  Arabian Sea
  ship:            R/V Thomas Thompson

  PI Notes and Methodology

  
  Some additional undocumented information was submitted 
  with this data and is available for download as Excel files:
  -- core meta data
  -- fauna flux data
  -- C14 data for G.menardii and G.sacculifer

Data Processing Description

Dataset Processing Description

U.S. JGOFS Arabian Sea Process Study

Sediment Composition

jgofs.whoi.edu/images/greendot.gif" alt="-- line--">

Processing notes:

December 2002, Warren Prell

1. Data for -1 to O interval are measure on unconsolidated phytodetritus layer

sitting on top of sediment water interface

2. Letter for each core refers to a multicore section

3. Opal determined using Mortlock and Froelich (1989, DSR, vol 36, 1415-1426)

4. CaCO3 detemined on automated Carbonate rig similar to Ostermann et al. (1990)

5. CaCO3-ICP = 2.5* Ca determined from ICP.

6. Corg and N% determined using technique of Verardo et al. (1990, DSR, 37, 157-165)

7. Ca, Mn, Fe, Al, Ti, and P determined on ICP-AES using technique of

Murray and Leinen (1996, GCA, 3869-3878)

8. Density calculated from dried weight of known volume of sample extruded from subcore

9. Sedimentation rates estimated from C-14 dating of monospecific foraminifer shells

from sampled depths. For all but JGOFS-1, both menardii and sacculifer (when available)

ages were used to calculate sedimentation rate. In practice JGOFS-5 had one sacculifer

and 5 menardii and Owen Ridge 2 had 8 menardii and 6 sacculifer, the rest have only

menardii. For JGOFS-1, the data on the 2 species measured were significantly different

so two separate rates were calculated- one for each species (C14_sed_rate calculated

from G. menardii, and C14_sed_rate_2 from G. sacculifer).

jgofs.whoi.edu/images/greendot.gif" alt="-- line--">

References:
Mortlock, R.A., and Froelich, P.N., 1989.  A simple method for the rapid
determination of biogenic opal in pelagic marine sediments.  Deep-Sea Res.,
36:1415-1426.

Ostermann, D.R., Karbott, D., and Curry, W.B., 1990. Automated system to
measure carbonate concentration of sediments. Woods Hole Oceanog. Inst.
Tech. Rept., WHOI-90-03.

Verardo, D., Froelich, P.N., and McIntyre, A., 1990. Determination of
organic carbon and nitrogen in marine sediments using the Carlo Erba NA-1500
analyzer. Deep-Sea Research, 37: 157-165.

Murray, R. W. and Leinen, M. 1996.  Scavenged excess aluminum and its
relationship to bulk titanium in biogenic sediment from the central
equatorial Pacific Ocean.  Geochimica et Cosmochimica Acta, 60 (20):
3869-3878.

Deployment-specific processing description

<h2>U.S. JGOFS Arabian Sea Process Study 
Sediment Composition</h2>

<img height=1 width="100%" http://us

jgofs.whoi.edu/images/greendot.gif" alt="-- line--">

Processing notes: 
 December 2002, Warren Prell 

1. Data for -1 to O interval are measure on unconsolidated phytodetritus layer 
sitting on top of sediment water interface 
2. Letter for each core refers to a multicore section 
3. Opal determined using Mortlock and Froelich (1989, DSR, vol 36, 1415-1426)

4. CaCO3 detemined on automated Carbonate rig similar to Ostermann et al. (1990) 
5. CaCO3-ICP = 2.5* Ca determined from ICP. 
6. Corg and N% determined using technique of Verardo et al. (1990, DSR, 37, 157-165) 
7. Ca, Mn, Fe, Al, Ti, and P determined on ICP-AES using technique of 
Murray and Leinen (1996, GCA, 3869-3878) 
8. Density calculated from dried weight of known volume of sample extruded from subcore 
9. Sedimentation rates estimated from C-14 dating of monospecific foraminifer shells 
from sampled depths. For all but JGOFS-1, both menardii and sacculifer (when available)

ages were used to calculate sedimentation rate. In practice JGOFS-5 had one sacculifer 
and 5 menardii and Owen Ridge 2 had 8 menardii and 6 sacculifer, the rest have only 
menardii. For JGOFS-1, the data on the 2 species measured were significantly different 
so two separate rates were calculated- one for each species (C14_sed_rate calculated 
from G. menardii, and C14_sed_rate_2 from G. sacculifer).

<img height=1 width="100%" http://us

jgofs.whoi.edu/images/greendot.gif" alt="-- line--">
<pre>
References:
Mortlock, R.A., and Froelich, P.N., 1989. A simple method for the rapid
determination of biogenic opal in pelagic marine sediments. Deep-Sea Res.,
36:1415-1426.

Ostermann, D.R., Karbott, D., and Curry, W.B., 1990. Automated system to
measure carbonate concentration of sediments. Woods Hole Oceanog. Inst.
Tech. Rept., WHOI-90-03.

Verardo, D., Froelich, P.N., and McIntyre, A., 1990. Determination of
organic carbon and nitrogen in marine sediments using the Carlo Erba NA-1500
analyzer. Deep-Sea Research, 37: 157-165.

Murray, R. W. and Leinen, M. 1996. Scavenged excess aluminum and its
relationship to bulk titanium in biogenic sediment from the central
equatorial Pacific Ocean. Geochimica et Cosmochimica Acta, 60 (20):
3869-3878.

</pre>

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown Arabian Sea NSF	National Science Foundation

Instruments

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
site	Arabian Sea site designation		no_bcodmo_term
core_id	core identification		no_bcodmo_term
lat	latitude	decimal degrees	lat
lon	longitude	decimal degrees	lon
depth_w	ocean depth	meters	depth_w
depth_core	average depth (from core top) of sediment sampling interval. -1 to 0 interval refers to unconsolidated phytodetritus layer	centimeters	no_bcodmo_term
depth_core_sd	standard deviation of interval	centimeters	no_bcodmo_term
Si_opal	opal	percent	no_bcodmo_term
CaCO3	calcium carbonate	percent	no_bcodmo_term
CaCO3_ICP	calcium carbonate by ICP	percent	no_bcodmo_term
C_org	organic carbon	percent	no_bcodmo_term
N	nitrogen	percent	no_bcodmo_term
Al	aluminum	percent	no_bcodmo_term
Fe	iron	percent	no_bcodmo_term
Ti	titanium	percent	no_bcodmo_term
Mn	manganese	percent	no_bcodmo_term
P	phosphorus	percent	no_bcodmo_term
density	calculated from dried weight of known volume	grams per cubic centimeter	density
C14_sed_rate	sedimentation rate estimated from C14 dating of forams	centimeters per 1000 years	no_bcodmo_term
C14_sed_rate_2	sedimentation rate estimated from C14 dating of forams	centimeters per 1000 years	no_bcodmo_term

Database

Contribute Data

Dataset: sed_comp
Deployment: TT041

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

U.S. JGOFS Arabian Sea Process Study

Sediment Composition

Deployment-specific processing description

Database

Contribute Data

Dataset: sed_compDeployment: TT041

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

U.S. JGOFS Arabian Sea Process Study Sediment Composition

Deployment-specific processing description

Dataset: sed_comp
Deployment: TT041

U.S. JGOFS Arabian Sea Process Study

Sediment Composition