Geochemometrics: Petrology of Quaternary Volcanism in the Central Mexican Volcanic Belt

Espinosa, J. G. Aguirre; Velasco-Tapia, Fernando; Rodríguez-Saavedra, P.; Salinas-Jasso, J. A.

doi:10.1007/978-981-19-4782-7_14

Cited by 4 publications

(3 citation statements)

References 31 publications

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“…Additionally, Márquez and De Ignacio (2002) and Aguirre‐Espinosa et al. (2022) geochemical studies suggest that the crust base beneath Sierra Chichinautzin may have been formed by underplating of mafic magmas, supporting our hypothesis. Consequently, we propose that underplating beneath Sierra Chichinautzin and Sierra de las Cruces may explain the high‐velocity crust base anomaly, and it might be responsible for our differences in Moho estimation versus the Cruz‐Atienza et al.…”

Section: Discussionsupporting

confidence: 86%

“…However, the A-A*, D-D*, E-E*, F-F*, G-G*, H-H*, I-I*, J-J*, and M-M* profiles suggest that this behavior is also present beneath Sierra de las Cruces, where the high-velocity crust base anomaly can be found around 34 km. Additionally, Márquez and De Ignacio (2002) and Aguirre-Espinosa et al (2022) geochemical studies suggest that the crust base beneath Sierra Chichinautzin may have been formed by underplating of mafic magmas, supporting our hypothesis. Consequently, we propose that underplating beneath Sierra Chichinautzin and Sierra de las Cruces may explain the high-velocity crust base anomaly, and it might be responsible for our differences in Moho estimation versus the Cruz-Atienza et al (2010) and Espíndola et al (2017) ones since, as discussed in Section 5.1, they may have averaged the effect of the underplated material and the mantle as a single layer.…”

Section: Rest Of the Crustal Structure And Its Complexitysupporting

confidence: 82%

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Crustal Structure Beneath Mexico City From Joint Inversion of Receiver Functions and Dispersion Curves

Aguilar‐Velázquez,

Pérez‐Campos,

Pita‐Sllim

2023

JGR Solid Earth

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Over the years, it has been clear to seismologists that the crustal structure beneath Mexico City is highly complex. This fact may influence the seismic waves' behavior when traveling through it. Consequently, many studies have been done to understand this crustal structure. This article presents a high‐resolution S‐wave velocity model obtained from joint inversion of radial receiver functions and group‐velocity dispersion curves beneath Mexico City (VMRFDC). This model includes azimuthal variations observed with receiver functions, which may be interpreted as crustal discontinuities. Receiver functions were retrieved from velocity and acceleration records, and dispersion curves were collected from a previous tomographic study. We performed a geostatistical analysis that revealed a horizontal spatial correlation of the crustal structure for up to 7.5 km. This distance was obtained from the S‐wave velocity omnidirectional semivariogram range per depth. Using ordinary kriging, we utilized this spatial correlation to estimate S‐wave velocities per depth and introduced two novel techniques: a resolution test for kriging and a geostatistical‐dependent smoothing technique. Finally, we compare our results with previous works, making our model consistent with geological and geophysical features reported in the literature.

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Section: Discussionsupporting

confidence: 86%

Section: Rest Of the Crustal Structure And Its Complexitysupporting

confidence: 82%

Crustal Structure Beneath Mexico City From Joint Inversion of Receiver Functions and Dispersion Curves

Aguilar‐Velázquez,

Pérez‐Campos,

Pita‐Sllim

2023

JGR Solid Earth

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“…Additional investigations on specific mineral phases can include diffusion modelling and calculations of magma ascent rates, among other approaches. Finally, we encourage to further analyse the CatVolc database content with other multivariate techniques, such as principal component analysis or clustering, or applying geochemometrics, a geochemistry systematized branch resulting from the combination of geochemical principles with statistical, mathematical, and computational tools (e.g., Aguirre Espinosa et al, 2022). Such endeavours will contribute to a more comprehensive characterization of the magmatic system(s) and its dynamic processes.…”

Section: Future Volcanic-driven Studies At the Cvzmentioning

confidence: 99%

CatVolc: A new database of geochemical and geochronological data of volcanic-related materials from the Catalan Volcanic Zone (Spain)

Geyer,

Miranda-Muruzábal,

Aulinas

et al. 2024

Preprint

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The Catalan Volcanic Zone (CVZ) in northeastern Spain constitutes an intraplate alkaline volcanic region linked to the opening of the Western Mediterranean and the development of the European Rift System. Volcanic activity in the CVZ started in the L’Empordà area (ca. > 12 - 8 Ma), extended to La Selva (7.9 - 1.7 Ma), and finally migrated to the Garrotxa Volcanic Field (< 0.7 - 0.01Ma). Despite ongoing scientific interest in the CVZ dating back to the early 19th century, certain aspects remain insufficiently defined. These include a comprehensive understanding of the spatial and temporal evolution of the magma plumbing system(s) and ascent mechanisms, as well as the chronology of volcanism across the CVZ. Unraveling these unresolved questions requires geochemical, petrological, and geochronological data, which, in the case of the CVZ, are scattered and have never been integrated or analysed within a unified framework. This study introduces the CatVolc (Catalan Volcanism) database, consolidating existing geochemical and geochronological data of volcanic-related materials within the CVZ. The current version of the database incorporates geochemical analyses from 405 rock samples (296 juvenile magmatic rocks -including lavas and pyroclasts- and 109 xenoliths), and radiometric/thermoluminescence dating data from 57 rocks (55 volcanogenic and two dykes), 4 paleosols samples developed between volcanic deposits and 1 sample from sediments. Each entry in the CatVolc database provides general information about the sampling site, sample lithology, whole-rock analyses (including major and trace elements), isotopic ratios, mineral chemistry, and radiometric/thermoluminescence dating details, if available. An initial analysis of the information contained in the CatVolc database highlights the critical limitations of the current state of knowledge and allows suggesting potential future directions for volcanic-driven investigations in the CVZ. Furthermore, the outcomes affirm the CatVolc database as an essential tool for understanding the spatial and temporal evolution of magmatic systems and volcanic activity in the CVZ, particularly within the Garrotxa Volcanic Field. This validation is crucial for advancing the assessment of volcanic hazards in the region and gaining a comprehensive understanding of future volcanic activity. This work has been developed under the financial support of the Institut Cartogràfic i Geològic de Catalunya (ICGC), the Parc Natural de la Zona Volcànica de La Garrotxa (PNZVG), the Fundación General CSIC's ComFuturo programme and the Marie Skłodowska-Curie grant agreement No. 101034263, the collaboration grant 2021 COLAB 00367 funded by the MEFP,  and the grant PID2022-139047NA-I00 funded by MCIN/AEI/ 10.13039/501100011033 and by “ERDF A way of making Europe”.

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Provenance significance of quartz grain microtextures in the Salina Cruz and Puerto Angel beaches, Oaxaca State, Mexican Pacific

et al. 2023

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Geochemometrics: Petrology of Quaternary Volcanism in the Central Mexican Volcanic Belt

Cited by 4 publications

References 31 publications

Crustal Structure Beneath Mexico City From Joint Inversion of Receiver Functions and Dispersion Curves

Crustal Structure Beneath Mexico City From Joint Inversion of Receiver Functions and Dispersion Curves

CatVolc: A new database of geochemical and geochronological data of volcanic-related materials from the Catalan Volcanic Zone (Spain)

Provenance significance of quartz grain microtextures in the Salina Cruz and Puerto Angel beaches, Oaxaca State, Mexican Pacific

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