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Título: Raman-IR vibrational and XRD characterization of ancient and modern mineralogy from volcanic eruption in Tenerife Island: Implication for Mars
Autor: Lalla, Emmanuel
Lopez-Reyes, Guillermo
Sansano, Antonio
Sanz-Arranz, Aurelio
Martínez-Frías, Jesús
Medina, Jesús
Rull, Fernando
Año del Documento: 2016
Documento Fuente: Geoscience Frontiers 7 (2016) 673-681
Resumen: A detailed vibrational Raman-IR spectroscopic and diffractional analyses have been performed on basalts from two locations from Tenerife Island: (1) the Arenas Negras volcano which belongs to the historical eruption not showing visible alteration and (2) Pillow Lavas zone from Anaga Massif which shows a clearly fluid-rock interaction caused by submarine alteration. These places have been extensively studied due to its similarity with the surface of Mars. The analysis is based on the mineral detection of selected samples by a Micro-Raman study of the materials. The complementary techniques have confirmed the mineralogy detected by the Raman measurement. The results show a volcanic environment behavior with primary phases like olivine, pyroxene, and feldspar/plagioclase. Moreover, the presence of accessory minerals or secondary mineralization like phosphate, iron oxides, zeolite or carbonates shows the alteration processes on each outcrop. The variation in the crystallinity and amorphous phases is related to fluid-rock interaction caused by hydrothermal episodes and external weathering processes, which shows several analogies with the ancient volcanic activity from Mars.
Revisión por Pares: SI
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/23003
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:DEP32 - Artículos de revista

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