926 resultados para Minor planets, asteroids: individual: (2) Pallas


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The organic walled cyst content of 41 surface sediment samples from the south-eastern South Atlantic Ocean have been studied to create a dataset that can be used for palaeoceanographic reconstructions. In order to obtain insight into which environmental factors influence the distribution of individual cyst species, the cyst associations have been compared with oceanographic characteristics of the overlying water masses, i.e. temperature, salinity, density and stratification gradients. The associations and relationships have been established by visual examination of the dataset and the multivariate ordination techniques, Detrended Correspondence Analysis and Canonical Correspondence Analysis. Special attention has been given to the factors of transport and preservation of the cysts. Five associations have been recognised as being characteristic of (1) areas influenced by coastal upwelling and/or river outflow, (2) open ocean, (3) Agulhas Current and southern Benguela Current, (4) Benguela Current and (5) Walvis Bay, shelf break area. The factors dominant in influencing either directly or indirectly the cyst distributions appear to be the stratification in the upper 50 m of the water column, nutrient concentration and seasonality. Variations in sea surface temperatures and salinities have only minor effect on cyst distribution.

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Caption title.

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Publisher's no.: Collection Litolff no. 1506-1507.

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Orchestral acc. arr. for piano.

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No. 1, F major -- No. 2, G minor.

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Mode of access: Internet.

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Vol. 2 published by John Douglas, New York.

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The complete report forms v. 2 of the Papers of the school.

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"Sea Grant Publication No. IL-IN-SG-97-7"--P. 2 of cover.

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v. 1. Travels in Asia Minor -- v. 2. Travels in Greece.

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"Abbreviatio chronicorum Angliae," v. 3, p. 151-348, erroneously attributed to Paris by the editor. cf. Dict. nat. biog.

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Vol. 1 edited by Rev. R. F. Horton; v. 2 by Rev. S. R. Driver.

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"Includes all of Chaucer's genuine poetical works with the exception of ... the Canterbury tales, Troilus and Cressida, and the Legend of good women." Introd.

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Mode of access: Internet.