991 resultados para 32-313
Resumo:
Small glassy spheres, ellipsoids, teardrops, cylinders and dumbbells occur in large numbers in Tertiary deep sea clays cored in the northeastern Pacific by the Deep Sea Drilling Project. These objects morphologically resemble microtektites, but have the composition of an oceanic tholeiite. On the basis of their composition and stratigraphic relationship it is considered that they are of volcanic origin and most likely have been formed in deep water by submarine volcanic processes.
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Fil: Costarelli Brandi, Hugo Emilio. Universidad Nacional de Cuyo. Facultad de Filosofía y Letras
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Fil: Corso de Estrada, Laura. Universidad Católica Argentina. Sede Buenos Aires
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Fil: Peretó Rivas, Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas
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Fil: Peretó Rivas, Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas
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Fil: Martin De Blassi, Fernando.