. Acta Academiae Aboensis. Science; Mathematics. " ^, ^^> , '^ *?^ "'TÖfc ••. <«4b|^«^' Fig. 2. Sericitic, microfolded ferriferous schist. Nie. +. Magn. 20 X. Sierra de Umango ridge, eastern side. Quebrada Salto (N from Casa Piedra).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Åbo akademi (1918- ). Åbo : Åbo akademi

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectm, booksubjectscience