919 resultados para Byrsonima intermedia extract
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A large deposit of ferromanganese oxide concretions has been found in the northern portion of Lake Ontario. The concretions occur mainly in the form of coatings on sand grains but manganese nodules are present at several localities. Mineralogically, the ferromanganese oxide phases are amorphous, and their Fe and Mn contents are similar to those in concretions from other environments. However, their Ni, Co, and Cu contents are significantly higher than those reported in previously described North American lacustrine ferromanganese concretions, and this may, in part, be a reflection of their probable low rates of accumulation.
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With: Acts of Congress relating to the Union Pacific railroad and branches. Washington : J.L. Pearson, Printer, 1877. Bound together subsequent to publication.
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Prepared for Office of Research and Development, U.S. Environmental Protection Agency under contract 68-01-0729, program element 1H1093.
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PB90-215120
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Mode of access: Internet.
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James P. Pope, chairman.
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Mode of access: Internet.
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Green, J.S., prof., 1847-55; trustee, 1828-62.
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Translated from the Spanish by George William Erving.
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Mode of access: Internet.
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Mode of access: Internet.