David García Pérez y Carolina Olivares Chávez (Eds). La persistencia de los clásicos. Supplementum IV, Noua Tellus, Anuario del Centro de Estudios Clásicos. Universidad Nacional Autónoma de México, Instituto de Investigaciones Filológicas, México, 2012, 126 pp.

Fil: Zamperetti Martín, Deidamia Sofía. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Susana Zanetti y otros, Las cenizas de la huella. Linajes y figuras de artista en torno al modernismo. Rosario, Beatriz Viterbo Editora, 1997, 126 págs.

Fil: Basile, María Teresa Gabriela. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Susana Zanetti y otros, Las cenizas de la huella. Linajes y figuras de artista en torno al modernismo. Rosario, Beatriz Viterbo Editora, 1997, 126 págs.

Fil: Basile, Teresa. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

David García Pérez y Carolina Olivares Chávez (Eds). La persistencia de los clásicos. Supplementum IV, Noua Tellus, Anuario del Centro de Estudios Clásicos. Universidad Nacional Autónoma de México, Instituto de Investigaciones Filológicas, México, 2012, 126 pp.

Fil: Zamperetti Martín, Deidamia Sofía. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Age and petrographic characterization of volcanic ash from ODP Leg 198 and Leg 126 sites

In this study of volcanic ash retrieved from Shatsky Rise during Ocean Drilling Program Leg 198, the texture and composition of the volcanic components (glass and crystals) were used to fingerprint ash layers for detailed correlation. Correlations among ash layers in holes drilled at the same site as well as between sites, including sites on different parts (highs) of the rise, were tested. Although high-to-high correlations failed, intrahigh correlations were more successful. Our data suggest a significantly different source for some pyroclastic debris, especially at Site 1208, possibly associated with pumice rafts carried northward from the Izu-Bonin arc by the Kuroshio Current. Other ashes are consistent with rhyolitic to dacitic air fall ash from Asian arc volcanoes. We were not able to texturally distinguish between air fall ash and pumice-raft fallout but suspect that the latter is associated with higher percentages of vesiculated ash components, as we demonstrate occur in more proximal Izu-Bonin pyroclastic deposits.