RT info:eu-repo/semantics/article
T1 Raman-IR vibrational and XRD characterization of ancient and modern mineralogy from volcanic eruption in Tenerife Island: Implication for Mars
A1 Lalla, Emmanuel Alexis
A1 López Reyes, Guillermo Eduardo
A1 Sansano Caramazana, Antonio
A1 Sanz Arranz, Aurelio
A1 Martínez Frías, Jesús
A1 Medina García, Jesús
A1 Rull Pérez, Fernando
AB A detailed vibrational Raman-IR spectroscopic and diffractional analyses have been performed on basaltsfrom two locations from Tenerife Island: (1) the Arenas Negras volcano which belongs to the historicaleruption not showing visible alteration and (2) Pillow Lavas zone from Anaga Massif which shows aclearly fluid-rock interaction caused by submarine alteration. These places have been extensively studieddue to its similarity with the surface of Mars. The analysis is based on the mineral detection of selectedsamples by a Micro-Raman study of the materials. The complementary techniques have confirmed themineralogy detected by the Raman measurement. The results show a volcanic environment behaviorwith primary phases like olivine, pyroxene, and feldspar/plagioclase. Moreover, the presence of accessoryminerals or secondary mineralization like phosphate, iron oxides, zeolite or carbonates shows thealteration processes on each outcrop. The variation in the crystallinity and amorphous phases is relatedto fluid-rock interaction caused by hydrothermal episodes and external weathering processes, whichshows several analogies with the ancient volcanic activity from Mars.
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/23003
UL http://uvadoc.uva.es/handle/10324/23003
LA eng
NO Geoscience Frontiers 7 (2016) 673-681
DS UVaDOC
RD 26-abr-2024