Anatomy of the Xáltipan ignimbrite at Los Humeros Volcanic Complex; the largest eruption of the Trans-Mexican Volcanic Belt

Cavazos-Álvarez, Jaime Alberto; Carrasco-Núñez, Gerardo

doi:10.1016/j.jvolgeores.2019.106755

Cited by 17 publications

(4 citation statements)

References 46 publications

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“…Large quantities of quartz minerals were also recognized in the matrix, indicating a dacitic to rhyolitic composition similarly to the Pyroclastic fall deposits (Pyr). Ignimbrite 2 is related to the Los Humeros 'caldera group' (Carrasco-Núñez et al, 2017;Cavazos-Álvarez & Carrasco-Núñez, 2020) and consequently its age is supposed to be Middle-Upper Pleistocene.…”

Section: Stratigraphic Successionmentioning

confidence: 99%

Geology of Las Minas: an example of an exhumed geothermal system (Eastern Trans-Mexican Volcanic Belt)

et al. 2020

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The Las Minas area corresponds to an exhumed geothermal system considered a proxy for the deep part of the nearby Los Humeros active geothermal system. The stratigraphic succession is made up of: Palaeozoic-Miocene granitoids, a thick Jurassic-Cretaceous carbonate succession, Neogene lava flows and volcano-sedimentary deposits. Linked to a Miocene magma intrusion, marble and skarn rock-volumes developed by contact metamorphism and geothermal fluid flow. Faults are arranged in SW-and NNW-striking systems. These controlled the morphological evolution and favored Neogene-Quaternary dyke emplacement. Faulting gave rise to a tectonic depression where lacustrine sediments and pyroclastics deposited. Skarn rocks are mainly located at fault intersections and along pre-existing discontinuities, suggesting the role of bedding and/or fractures in channeling deep fluids. Results give inputs for exploration at depth of Los Humeros geothermal system.

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Section: Stratigraphic Successionmentioning

confidence: 99%

Geology of Las Minas: an example of an exhumed geothermal system (Eastern Trans-Mexican Volcanic Belt)

et al. 2020

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“…In this study, we focus on the Los Humeros Volcanic Complex (LHVC) that is located in the eastern margin of the Trans-Mexican Volcanic Belt (TMVB), central Mexico. This system is characterized by two nested caldera collapses, the older is the larger Los Humeros caldera, which experienced the largest Quaternary eruption reported so far in the TMVB (Cavazos-Alvarez & Carrasco-Núñez, 2020), while the more recent is the inner and smaller Los Potreros caldera (Carrasco-Núñez et al, 2018;Ferriz & Mahood, 1984;Flores-Armenta & Gutiérrez-Negrín, 2011). The Los Potreros caldera hosts an important superhot geothermal system that is currently exploited for electric power production (Calcagno et al, 2018;Carrasco-Núñez et al, 2015).…”

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confidence: 99%

Modeling Intra‐Caldera Resurgence Settings: Laboratory Experiments With Application to the Los Humeros Volcanic Complex (Mexico)

et al. 2021

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• Scaled experimental models have explored the influence of different boundary conditions in controlling the style of caldera resurgence • Models investigated the role of intrusion depth, symmetry of collapse and the presence of existing faults on resurgence processes • Models simulate many characteristics of resurgent calderas, such as the sub-orthogonal fault pattern at the Los Humeros Volcanic Complex

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“…A stratotype locality is referred adjacent to the Xáltipan town (northern LHVC). Nevertheless, the complete stratigraphy of this unit can be better assessed by following the two stratotype sections described in Cavazos and Carrasco-Núñez (2020) since this is a composite, facies-variating ignimbrite (from proximal outflow sheet to distal valley-pond; outcrops are all around Los Humeros caldera).…”

Section: Qxig-xáltipan Ignimbrite (Lhvc)mentioning

confidence: 99%

Volcanic geology of the easternmost sector of the Trans-Mexican Volcanic Belt, Mexico

et al. 2021

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This work presents the volcanic geology of the easternmost sector of the Trans-Mexican Volcanic Belt, including the Serdán-Oriental basin and Cofre de Perote-Citlaltépetl volcanic range, two contrasting Quaternary volcanic fields. The first comprises dominant monogenetic volcanism of bimodal composition including isolated rhyolitic domes and tuff rings, basaltic andesite maar volcanoes, cinder and lava cones, and an active caldera complex (Los Humeros). The second is dominated by large composite polygenetic volcanoes of andesitic-dacitic composition, including the shield-like compound Cofre de Perote volcano, La Gloria and Las Cumbres complexes, and the active Citlaltépetl stratovolcano. Mapping units include a pre-volcanic basement made of metamorphic (Paleozoic), and sedimentary (Jurassic-Cretaceous); intrusive (Miocene) rocks; multiple basaltic-andesitic lava flows and rhyolitic domes; volcaniclastic sequences (debris avalanches and lahars; and pyroclastic deposits (block-and-ash flows, ignimbrites, fallouts, and surges) (Miocene-Holocene). This map provides a comprehensive view of the highly diverse volcanism, which may reference for future research work.

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Anatomy of the Xáltipan ignimbrite at Los Humeros Volcanic Complex; the largest eruption of the Trans-Mexican Volcanic Belt

Cited by 17 publications

References 46 publications

Geology of Las Minas: an example of an exhumed geothermal system (Eastern Trans-Mexican Volcanic Belt)

Geology of Las Minas: an example of an exhumed geothermal system (Eastern Trans-Mexican Volcanic Belt)

Modeling Intra‐Caldera Resurgence Settings: Laboratory Experiments With Application to the Los Humeros Volcanic Complex (Mexico)

Volcanic geology of the easternmost sector of the Trans-Mexican Volcanic Belt, Mexico

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