EDMED Details

General

Dataset Name

Sediment cores analytical data collected in the Adriatic and Ionian Sea during MATER Project

Data Holding Centre

Institute of Marine Science (ISMAR) - Bologna

Time Period

August 1997

Start Date

1997-01-01

End Date

1997-12-31

Project

MEDITERRANEAN TARGETED PROJECT MTP II-MATER

Geographic Area

Geocoverage

Southern Adriatic Sea, Otranto Strait and Northern Ionian Sea

Geographic Box (south,north,west,east)

38, 14, 20, 44

Sea Area

Mediterranean Sea

Ionian Sea

Adriatic Sea

Observations

Parameters

Carbon concentrations in sediment

Mineralogical composition

Sediment grain size parameters

Nitrogen concentrations in sediment

Instruments

unconsolidated sediment corers

elemental analysers

Description

Summary

Sediment cores were collected by means of a Multicorer, and sliced into 0.5, 1, 2 cm thick sections. Total and organic C and total N were determined by dry combustion on a CHNS elemental analyzer (Fisons NA 2000). Subsamples for organic carbon were decarbonated using 1M HCl and dried (Hedges and Stern, 1984). Biogenic silica was extracted with 0.5 M NaOH solution at 85 C (Muller and Schneider, 1993), dissolved silica was determined spectrophotometrically (Strickland and Parsons; 1972). Sediment grainsize Sediment samples are first treated with Hydrogen peroxide in order to eliminate organic coatings. Grain size fraction > 63 mm (sand) is separated by wet If this fraction exceeds 5 %, further sand size class sorting is obtained by gravity settling through a sedimentation tube. The < 63 mm fraction is analysed by a Sedigraph 5000D (Micromeritics). Finest fraction is 0.025 mm diameter. Grain size composition is classified according to Shepard (1954)and referreed as sand, silt and clay percentages.

Originator

Institute of Marine Science (ISMAR) - Bologna

References

"Hedges, J.I., Stern, J.H., 1984. Carbon and nitrogen determination of carbonate-containing solids. Limnology and Oceanography 29, 657-663." 1984-06-01, unknown, unknown

"Muller P.J. and Schneider R. 1993. An automated leaching method for determination of opal in sediments and particulate matter. Deep Sea Research 40, 425-444." 1993-06-01, unknown, unknown

"Shepard F.P., 1954: Nomenclature based on sand-silt-clay ratios. J. Sedim. Petrol., 24, 151-158." 1954-06-01, unknown, unknown

"Strickland, J.D.H., Parsons, T.R., 1972. A pratical handbook of seawater analyses. Fisheries Research Board of Canada, Ottawa, 311 pp." 1972-06-01, unknown, unknown

Availability

Availability

by negotiation

Organization

Institute of Marine Science (ISMAR) - Bologna

Contact

Ravaioli Mariangela

Address

Institute of Marine Science (ISMAR) - Bologna

Bologna

40129

Italy

mariangela.ravaioli@bo.ismar.cnr.it

http://www.bo.ismar.cnr.it/

Administration

Local identifier

1079

Creation Date

2014-10-02

Revision Date

2013-07-26