Martha Gabriela Gómez‐Vasconcelos

Universidad Michoacana de San Nicolás de Hidalgo

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Denis Ramón Avellán

Universidad Nacional Autónoma de México

José Luis Macías

Universidad de Morelia

Víctor Hugo Garduño‐Monroy

Universidad Michoacana de San Nicolás de Hidalgo

Paul W. Layer

University of Alaska Fairbanks

Pilar Villamor

GNS Science

Giovanni Sosa-Ceballos

Universidad Nacional Autónoma de México

Guillermo Cisneros-Máximo

Universidad Nacional Autónoma de México

Shane J. Cronin

University of Auckland

Alan Palmer

Massey University

Jeffrey A. Benowitz

University of Alaska Fairbanks

Cooperative Institutions

Universidad Nacional Autónoma de México

Universidad Michoacana de San Nicolás de Hidalgo

Universidad de Morelia

Massey University

Université du Québec à Montréal

GNS Science

Centre National de la Recherche Scientifique

University of Auckland

National University of Salta

Center for Scientific Research and Higher Education at Ensenada

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Volcanic evolution through geomorphological mapping: A case study of Cerro Bravo volcano (Colombia)

Journal of South American Earth Sciences (2023)

Emilce Bustos Marcelo Arnosio Hugo Murcia Eliana Arango Palacio Martha Gabriela Gómez‐Vasconcelos

Volcanic hazards

Effusive eruption

Volcanic cone

Chronology

Volcanology

Caldera

10.1016/j.jsames.2023.104472

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Citations (3)

Characterisation of faults as earthquake sources from geomorphic data in the Tongariro Volcanic Complex, New Zealand

New Zealand Journal of Geology and Geophysics (2018)

Martha Gabriela Gómez‐Vasconcelos Pilar Villamor J. Procter Alan Palmer Shane J. Cronin

At the southern Taupo Rift, tectonic faults and volcanic edifices have interacted during the last 350 kyr. The NNE-striking Tongariro Volcanic Complex is bounded and displaced by four parallel normal faults: National Park, Waihi, Poutu and Upper Waikato Stream, which collectively define the Tongariro Graben. Offsets of geomorphic surfaces of known age and fault trace geometry were used to characterise the seismic parameters of these faults. Along-strike distribution of fault displacement suggests that these faults could rupture as a whole. However, geomorphic data and geometrical characteristics of surface ruptures suggest that they could also rupture in shorter segments. This study calculates higher slip-rates (∼2.6 ± 0.8 and 2.2 ± 1.9 mm/yr for Waihi and Poutu fault zones, respectively) and greater earthquake magnitudes (up to MW 7.2 ± 0.1 and 6.9 ± 0.1, respectively) than previous studies, suggesting an important seismic hazard for the Tongariro area.

Fault trace

Echelon formation

10.1080/00288306.2018.1548495

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Citations (4)

The Nieve volcanic cluster: A Pliocene - Pleistocene lava dome cluster in the Michoacán-Guanajuato volcanic field (México)

Journal of Volcanology and Geothermal Research (2024)

Denis Ramón Avellán Silvestre Cardona-Melchor Martha Gabriela Gómez‐Vasconcelos José Luis Macías Paul W. Layer

Dome (geology)

Lava dome

Volcanic plateau

Lava field

10.1016/j.jvolgeores.2024.108091

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Citations (1)

Geology of the late Pliocene – Pleistocene Acoculco caldera complex, eastern Trans-Mexican Volcanic Belt (México)

Journal of Maps (2018)

Denis Ramón Avellán José Luis Macías Paul W. Layer Guillermo Cisneros Juan Manuel Sánchez-Núñez

ABSTRACT We present a new 1:80,000-scale geologic map of the Acoculco caldera (Ac) located between the states of Puebla and Hidalgo in eastern México. The map, encompassing an area of 856 km2, is grounded on an ArcMap data set and is supported by nine new 40Ar/39Ar dates. The caldera lies upon Cretaceous limestones and Miocene to Pliocene volcanic rocks (13–3 Ma). The caldera consists of 31 lithostatrigraphic units formed between 2.7 and 0.06 Ma that include a wide variety of volcanic landforms (cinder cones, lava domes). The caldera has a semi-circular shape (18–16 km) bounded by the Atotonilco scarp to the north, the NW–SE Manzanito fault to the west, and scattered vents to the east and southern parts. The distribution of the Acoculco ignimbrite, the lithic breccia, and lacustrine sediments define the caldera ring fault. Late Pleistocene activity and pervasive hydrothermal alteration suggest a high geothermal potential in the area.

Caldera

Landform

Lava field

Cinder cone

Breccia

10.1080/17445647.2018.1531075

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Citations (41)

Characterisation of faults as earthquake sources from geomorphic data in the Tongariro Volcanic Complex, New Zealand

Figshare (2018)

Martha Gabriela Gómez‐Vasconcelos Pilar Villamor J. Procter Alan Palmer Shane J. Cronin

At the southern Taupo Rift, tectonic faults and volcanic edifices have interacted during the last 350 kyr. The NNE-striking Tongariro Volcanic Complex is bounded and displaced by four parallel normal faults: National Park, Waihi, Poutu and Upper Waikato Stream, which collectively define the Tongariro Graben. Offsets of geomorphic surfaces of known age and fault trace geometry were used to characterise the seismic parameters of these faults. Along-strike distribution of fault displacement suggests that these faults could rupture as a whole. However, geomorphic data and geometrical characteristics of surface ruptures suggest that they could also rupture in shorter segments. This study calculates higher slip-rates (∼2.6 ± 0.8 and 2.2 ± 1.9 mm/yr for Waihi and Poutu fault zones, respectively) and greater earthquake magnitudes (up to M_W 7.2 ± 0.1 and 6.9 ± 0.1, respectively) than previous studies, suggesting an important seismic hazard for the Tongariro area.

10.6084/m9.figshare.7413563

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Citations (0)

Supplementary files "Characterisation of faults as earthquake sources from geomorphic data in the Tongariro Volcanic Complex, New Zealand"

Figshare (2018)

Martha Gabriela Gómez‐Vasconcelos Pilar Villamor J. Procter Alan Palmer Shane J. Cronin

Table A1. Fault strands vertical displacement and along-strike slip distribution calculations for the Waihi Fault zone. Table A2. Fault strands vertical displacement and along-strike slip distribution calculations for the Poutu Fault zone.

10.6084/m9.figshare.7261385

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Citations (0)

New Insights into Feeder Dike Swarms in Scoria Cones and Their Structural Control: A Case Study in the Michoacán-Guanajuato Volcanic Field

GSA Today (2022)

Martha Gabriela Gómez‐Vasconcelos Denis Ramón Avellán José Luis Macías Guillermo Cisneros-Máximo Juan Manuel Sánchez-Núñez

HomeJoinGSA StoreDonateContact Sign in Toggle search Keyword search Toggle navigation Keyword search Abstract View Volume 33 Issue 2 (February 2023) GSA Today Article, p. 4-10 | Full Text | PDF New Insights into Feeder Dike Swarms in Scoria Cones and Their Structural Control: A Case Study in the Michoacán-Guanajuato Volcanic Field Martha Gabriela Gómez-Vasconcelos* CONACYT–Instituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán, México, gabriela.gomez@umich.mx Denis-Ramón Avellán CONACYT–Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia, Michoacán, México, denisavellan@gmail.com José Luis Macías Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia, Michoacán, México, jlmv63@gmail.com Guillermo Cisneros-Máximo Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia, Michoacán, México, gcisneros@igeofisica.unam.mx Juan Manuel Sánchez-Núñez Instituto Politécnico Nacional–CIIEMAD, Gustavo A. Madero, Ciudad de México, México, jsancheznu@ipn.mx Daniel P. Miggins 40Ar/39Ar Geochronology Laboratory, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA, daniel.miggins@oregonstate.edu Abstract Understanding the feeder systems in scoria cones is essential because they serve as the conduits that feed the most common eruptions worldwide. Feeder dikes and their emplacement are presumably controlled by the tectonic stress field. However, the mechanism of dike propagation and structural control in monogenetic scoria cones remains poorly understood, as well as the conditions that allow dike swarms in scoria cones and in low magma-flux monogenetic volcanic fields. This is the first direct study of a magma feeder system in the Michoacán-Guanajuato Volcanic Field in central México. Quarrying in the Cerrito Colorado scoria cone displays six orthogonal feeder dikes—four of them are N-S oriented, parallel to the least compressive stress, intruding preexisting faults, and two are E-W oriented, perpendicular to the least compressive stress, forming their own fracture at the time of the eruption. Single feeder dikes are common in monogenetic volcanoes, but dike networks (swarms) can develop locally in the vicinity of scoria cones and other vent structures. We suggest that bifurcation of feeder dikes can result from temporary blockages of the conduit and during changes in the magma ascent rate and magma pressure. Feeder dikes at the surface can appear as tabular dikes, cylindrical conduits, or as a combination of both geometries. We suggest that tabular dikes splay-off tangentially, and cylindrical conduits bifurcate radially and axially to the main vent. Our study attests to the complexity and structural control that even small scoria cones can present. *Corresponding author Manuscript received 17 Mar. 2022. Revised manuscript received 30 June 2022. Manuscript accepted 18 July 2022. Posted 10 Aug. 2022. © The Geological Society of America, 2022. CC-BY-NC. https://doi.org/10.1130/GSATG539A.1 Cover Image Search Google Scholar for Martha Gabriela Gómez-Vasconcelos Denis-Ramón Avellán José Luis Macías Juan Manuel Sánchez-Núñez Daniel P. Miggins Search GSA Today About Membership Publications Events Education & Careers Science Policy News Advertising Place a Job Ad FAQs Jobs at GSA Center for Professional Excellence Code of Ethics Events Code of Conduct Privacy Policy Join GSA Contact Us www.geosociety.org © 2023 The Geological Society of America, Inc.

Scoria

Dike

10.1130/gsatg539a.1

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Citations (2)

The control of preexisting faults on the distribution, morphology, and volume of monogenetic volcanism in the Michoacán-Guanajuato Volcanic Field

Geological Society of America Bulletin (2020)

Martha Gabriela Gómez‐Vasconcelos José Luis Macías Denis Ramón Avellán Giovanni Sosa-Ceballos Víctor Hugo Garduño‐Monroy

Abstract Interactions between volcanic and tectonic processes affect the distribution, morphology, and volume of eruptive products in space and time. The Queréndaro area in the eastern Michoacán-Guanajuato Volcanic Field affords an exceptional opportunity to understand these relationships. Here, a Pleistocene lava plateau and 20 monogenetic volcanoes are vented from an active ENE-striking segment of the Morelia-Acambay fault system. Thirteen scoria cones are aligned along this structure, vented from an extensional gap in between two rotated hanging wall blocks of a listric fault. A new geological map, volcanic stratigraphy, and 40Ar/39Ar dating indicate that this lava plateau and volcanic cluster were emplaced from 0.81 to 0.25 Ma by 11 intermittent eruptive epochs separated by ca. 0.05 Ma, emplacing a total magma volume of 5 km3. Petrography and chemistry of rocks suggest that all volcanic structures were fed by three different magma batches but vented from independent feeder dikes. Our results indicate that preexisting faults exert a strong influence on volcanic spatial and temporal distribution, volcanic morphology, magma volume, and eruptive dynamics in this area. ENE-breached and ENE-elongated scoria cones indicate parallel subsurface fissure and feeder dikes. Additionally, points of maximum fault dilation at depth related to a transtensive state of stress coincide with less fragmented deposits and larger magma volumes. Furthermore, this study raises important questions on the geodynamics of volcano-tectonic interactions possible in similar monogenetic volcanic alignments worldwide.

Scoria

Lava field

Dike

Volcanic cone

Volcanic plateau

Cinder cone

Magma chamber

Volcanic belt

10.1130/b35397.1

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Citations (46)

Using paleoseismology and tephrochronology to reconstruct fault rupturing and hydrothermal activity since c. 40 ka in Taupo Rift, New Zealand