Insights into the Trenchward Displacement of the Volcanic Activity in the Colima Volcanic Complex, Mexico | Chapter 2 | Emerging Issues in Environment, Geography and Earth Science Vol. 1

 This division presents gravimetric and aeromagnetic data approximately the CVC, as well as the associated oddity maps, several 2-D models near selected drawing of individual parts of mechanism, and two inversions, one gravimetric and the other drawing, of such fields. Geological plan of areas accompanying potential for volcanic hazards is of high preference. In Mexico, volcanic the earth's features is in an early stage of incident. Volcanological research has been generally limited to pyroclastic and geochemical studies, with very little consideration paid to particularized mapping of alive volcanoes. Ancestral Volcán Colima grew on the southern, trenchward loin of the earlier and best volcano Nevado de Colima. Trenchward collapse was popular by the buttressing effect of Nevado, the rapid advancement drop to the south, and the interruption of magma into the in the south flank of the ancestral very large hill. Modeling gravimetric and aeromagnetic data we settle the magma chambers of the Fuego (alive) and Nevado (extinct) volcanoes within a 65 mGal negative Bouguer oddity elongated in a almost N-S direction. A attractive high is visible over the in the south part of the Fuego easily upset or inspired edifice on the following aeromagnetic map. Two further, related formations that we found appear to understand the southerly magmatic exodus trend and whose irregularities have not been earlier reported. One of ruling class is a collapse structure accompanying a circular topographic expression, and the southernmost is a low-mass intrusion ~1 km beneath sea level, guide a moderate topographic bulge at the surface that we interpret as a magma bulk. Gravimetric and magnetic fields are together modeled ahead five lines that cross the anomalies in order to label the magmatic bodies. We further perform 3-D gravimetric and attractive inversions in addition to the 2-D models. Although they are unable to change between the separate chambers of the Nevado and Fuego volcanoes, the results of each transposition sufficiently and alone identify the location of the magmatic chambers. 2-D and 3-D results complement each one and consistently show the points of potential magmatic regions. The pertaining to the south borders of the CVC can now be included in the attention on the southward-younging activity. The adjustment of the Nevado volcano, Fuego very large hill, La Escondida structure, and Southern Magma Chamber implies that volcanism's southward migration is a dynamic, constant activity, and their closeness and order favor a shared inception for them. Our models support a multiple, complex magmatic arrangement that appears in the second place to spread southwardly, which can pose supplementary volcanic risks to an already endangered local population.

Author(s) Details:

Román Alvarez,
Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Universidad Nacional Autónoma de México Ciudad Universitaria, México DF, México.

Vsevolod Yutsis,
Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, México.

Please see the link here: https://stm.bookpi.org/EIEGES-V1/article/view/11822