963 resultados para ECTOPLACENTAL CONE


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v.33:no.7(1975)

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Petrographic analysis of Quaternary terrigenous sand layers in eastern Mediterranean cores reveals distinct mineralogical differences between the Egyptian Shelf-Nile Cone region and the southern part of the Mediterranean Ridge. A compositionally and texturally immature suite in Ridge cores, mixed with a Nile-derived assemblage, identifies a fresh non-recycled mineral component derived from proximal igneous and metamorphic surface or near-surface exposures, probably in the south-central Ridge area rather than from distal African sources. The presence of such basement terrains would be consistent with a compressive thrust-belt origin for this part of the Mediterranean Ridge.

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"August 1984."

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Mode of access: Internet.

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Cover title.

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Glass, Anglo-Saxon, 5C; 10 7/16 in.x 3 15/32 in.; glass, greenish with everted rim and self-colored trails around the body

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Includes index.

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"References cited": p. 13.

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Mode of access: Internet.

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Three different cone photoreceptor visual pigments in the retina of striped marlin Tetrapturus audax were found with the aid of microspectrophotometry. This provides the first evidence for the basis of colour vision in the Istiophoridae. Furthermore, regional variations in photoreceptor density, type and spatial arrangement indicate differing visual capabilities along different visual axes. (C) 2003 The Fisheries Society of the British Isles.