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Matul, Alexander G (1999): (Table 2) Maximum values of relative abundances of radiolarian species in samples of surface layer sediments from the North Atlantic. PANGAEA,, Supplement to: Matul, AG (1999): On the relation of Radiolaria distribution to the water masses participating in the formation of the North Atlantic deep water. Translated from Okeanologiya, 1999, 39(1), 152-157, Oceanology, 39(1), 137-142

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Distribution of twelve Radiolaria species in the surface layer of sediments was analyzed from the author's data for the North Atlantic and from published materials for the Norwegian-Greenland Basin. Presumably, the groups of species are distinguished with respect to their relation and not related to water masses participating in formation of the North Atlantic Deep Water. They are as follows: (a) the group of species (A. tumudulum, L. arachnea) from surface and subsurface water masses of the Labrador Sea, which is relatively independent of the mechanism of North Atlantic Deep Water formation; (b) the group of species (Ph. clevei, S. osculosus, S. glacialis) from regions of generation (Norwegian-Greenland Basin, ? Labrador Sea) and transport to the North Atlantic (Denmark Strait, Labrador Sea) of transformed North Atlantic water involved into formation of the North Atlantic Deep Water; and (c) the group of species (A. setosa, Cr. borealis, C. davisiana, Ps. gracilipes) from areas of intensive transformation of North Atlantic water masses (Norwegian-Greenland Basin). An analysis of distribution of these Radiolaria species from sediments of Core MK-340 collected on the Reykjanes Ridge allows to suppose that no long hiatuses (with duration of few hundreds of years) in the generation of water masses forming the North Atlantic Deep Water occurred during the period from 12.3 to 8 ky ago.
Median Latitude: 54.586065 * Median Longitude: -27.098241 * South-bound Latitude: 41.475000 * West-bound Longitude: -50.050000 * North-bound Latitude: 66.070000 * East-bound Longitude: -4.088333
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m
AMat-1121 * Latitude: 52.983333 * Longitude: -41.570000 * Location: North Atlantic * Device: Grab (GRAB)
AMat-1153 * Latitude: 50.031667 * Longitude: -49.183333 * Location: North Atlantic * Device: Grab (GRAB)
AMat-1180 * Latitude: 59.075000 * Longitude: -23.058333 * Location: North Atlantic * Device: Grab (GRAB)
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4DEPTH, sediment/rockDepthmGeocode
5Depth, top/minDepth topmMatul, Alexander G
6Depth, bottom/maxDepth botmMatul, Alexander G
7Amphimelissa setosaA. setosa%Matul, Alexander GCounting, radiolarians
8Artobotrys borealisA. borealis%Matul, Alexander GCounting, radiolarians
9Artostrobium tumidulumA. tumidulum%Matul, Alexander GCounting, radiolarians
10Cromyechinus borealisC. borealis%Matul, Alexander GCounting, radiolarians
11Cycladophora davisianaC. davisiana%Matul, Alexander GCounting, radiolarians
12Lithomitra arachneaL. arachnea%Matul, Alexander GCounting, radiolarians
13Lithomitra lineataL. lineata%Matul, Alexander GCounting, radiolarians
14Phorticium cleveiP. clevei%Matul, Alexander GCounting, radiolarians
15Pseudodictyophimus gracilipesP. gracilipes%Matul, Alexander GCounting, radiolarians
16Spongodiscus osculosusS. osculosus%Matul, Alexander GCounting, radiolarians
17Spongodiscus resurgensS. resurgens%Matul, Alexander GCounting, radiolarians
18Spongotrochus glacialisS. glacialis%Matul, Alexander GCounting, radiolarians
151 data points

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