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Polyakova, Elena I; Pavlidis, Yury A; Levin, A A (1992): (Table 1) Grain size composition of surface sediments from the Barents Sea shelf. PANGAEA, https://doi.org/10.1594/PANGAEA.759112, Supplement to: Polyakova, EI et al. (1992): Factors governing diatom fossil distributions in the surface layer of bottom sediments on the Barents Sea shelf. Oceanology, 32(1), 112-119

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Abstract:
The surface layer of bottom sediments on the Barents Sea shelf has an irregular but generally very low abundance of diatoms. Tests of species belonging to present-day diatom flora were absent in nearly half of samples; their abundance was only a few shells per gram of dry sediment in 30% of the samples, it was up to 100 shells per gram in 9% of the samples, and was in thousands of shells per gram in only 13% of the samples. The lowest abundances of diatom shells were found in sediments of the eastern and northeastern parts of the sea owing to unfavorable sedimentation conditions and deficiency of dissolved silica in water. But distribution of diatom species on the surface of bottom sediments is strictly consistent with their present-day ranges. About 30% of the samples contained re-deposited Cretaceous and Paleogene diatoms indicating that bottom sediments have largely formed by scouring and re-deposition of underlying material.
Project(s):
Coverage:
Median Latitude: 74.371700 * Median Longitude: 48.442767 * South-bound Latitude: 73.571700 * West-bound Longitude: 41.503300 * North-bound Latitude: 74.961700 * East-bound Longitude: 52.973300
Minimum DEPTH, sediment/rock: 0.010 m * Maximum DEPTH, sediment/rock: 0.025 m
Event(s):
PS-1268 * Latitude: 73.571700 * Longitude: 41.503300 * Elevation: -330.0 m * Location: Barents Sea * Campaign: PS-16 * Basis: Professor Shtokman * Method/Device: Grab (GRAB)
PS-1301 * Latitude: 74.961700 * Longitude: 50.851700 * Elevation: -148.0 m * Location: Barents Sea * Campaign: PS-16 * Basis: Professor Shtokman * Method/Device: Gravity corer (GC)
PS-1303 * Latitude: 74.581700 * Longitude: 52.973300 * Elevation: -226.0 m * Location: Barents Sea * Campaign: PS-16 * Basis: Professor Shtokman * Method/Device: Grab (GRAB)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5Area/localityAreaPolyakova, Elena I
6DEPTH, sediment/rockDepth sedmGeocode
7Depth, top/minDepth topmPolyakova, Elena I
8Depth, bottom/maxDepth botmPolyakova, Elena I
9Size fraction > 1 mm, gravel>1 mm%Polyakova, Elena IGrain size, sieving
10Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand1-0.5 mm%Polyakova, Elena IGrain size, sieving
11Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand500-250 µm%Polyakova, Elena IGrain size, sieving
12Size fraction 0.250-0.100 mm250-100 µm%Polyakova, Elena IGrain size, sieving
13Size fraction 0.100-0.050 mm100-50 µm%Polyakova, Elena IGrain size, sieving/settling tube
14Size fraction 0.050-0.010 mm50-10 µm%Polyakova, Elena IGrain size, sieving/settling tube
15Size fraction 0.010-0.005 mm10-5 µm%Polyakova, Elena IGrain size analysis after Petelin (1967, Nauka, Moscow)
16Size fraction 0.005-0.001 mm5-1 µm%Polyakova, Elena IGrain size analysis after Petelin (1967, Nauka, Moscow)
17Size fraction < 0.001 mm, clay<1 µm%Polyakova, Elena IGrain size analysis after Petelin (1967, Nauka, Moscow)
Size:
36 data points

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