986 resultados para Logging Residue
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Particles of red brown to yellow brown semiopaque oxides (RSO) dominate the insoluble residue fraction of the sediments at Site 597. Unlike the X-ray amorphous particles in the Bauer Deep sediments, these particles are composed of mainly goethite; the amount of X-ray amorphous ferric hydroxide and poorly crystalline ferromanganese oxyhydroxides is generally small relative to the amount of goethite. A qualitative goethite crystallinity index was established. The variations observed in the crystallinity of goethite with increasing depth and changes in lithology suggest that aging and long-term exposure to seawater in a high water/sediment regime influence and increase the rate of recrystallization of the Fe-oxyhydroxides of the RSO particles. The percentage of organic carbon is low in these sediments; it varies primarily between 0.2 and 0.4 wt.%. Phillipsite is present throughout the sediment column and is more concentrated in the youngest clay layer and in the oldest basal sediments.
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Tables.
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This report was written on work performed under Federal solid waste management demonstration grant no. S-801535 awarded to Lowell, Mass. in October, 1972, and cancelled at the request of the grantee in July, 1975.
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Cover title.
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"Date Declassified: September 23, 1955."
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"Bibliographical note" at end of chapters.
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Mode of access: Internet.
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"October 1985"--P. [2] of cover.
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Mode of access: Internet.
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Cover title: The physical effect of logging on salmon streams of southeast Alaska.
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Mode of access: Internet.
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Bibliogr.: p. 263-282.