European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

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

Data holding centreInstitute of Marine Science (ISMAR) - Bologna
CountryItaly  Italy
Time periodAugust 1997
OngoingNo
Geographical area

Southern Adriatic Sea, Otranto Strait and Northern Ionian Sea

Observations 
Parameters

Particulate total and organic nitrogen concentrations in the water column

Instruments

Unconsolidated sediment corers

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.

OriginatorsInstitute of Marine Science (ISMAR) - Bologna
Availability 
OrganisationInstitute of Marine Science (ISMAR) - Bologna
AvailabilityMoratorium
ContactRavioli Mariangela (Director)
Address

Institute of Marine Science (ISMAR) - Bologna
Via Gobetti, 101
Bologna

40129
Italy

Administration 
Collating centreOGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale), Division of Oceanography
Local identifierOGS-EDMED-241
Global identifier3730
Last revised2003-09-17