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Journals / Turkish Journal of Earth Sciences / 2013 / Cilt: 22 - Sayı: 1

Magmatic processes at the volcanic front of Central Mexican Volcanic Belt: Sierra de Chichinautzin Volcanic Field (Mexico)

Fernando VELASCO-TAPIA
Surendra P. VERMA
Pages
32–60
Publication Date
2013-01-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Generally, an extensional setting is indicated for the SCN despite continuing subduction at the Middle America Trench.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The Sierra de Chichinautzin (SCN) volcanic field is considered one of the key areas to understand the complex petrogenetic processes at the volcanic front of the Mexican Volcanic Belt (MVB).
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Key Findings & Data:From inverse and direct modelling, combined 87Sr/86Sr and 143Nd/144Nd data, and use of multi-dimensional log-ratio discriminant function based diagrams and other geological and geophysical considerations, we infer that mafic magmas from the SCN were generated by partial melting of continental lithospheric mantle in an extensional setting.
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Conclusion & Impact:Generally, an extensional setting is indicated for the SCN despite continuing subduction at the Middle America Trench.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:geochemistry · subduction · extension

Abstract

The Sierra de Chichinautzin (SCN) volcanic field is considered one of the key areas to understand the complex petrogenetic processes at the volcanic front of the Mexican Volcanic Belt (MVB). New as well as published major- and trace-element and Sr and Nd isotopic data are used to constrain the magma generation and evolution processes in the SCN. From inverse and direct modelling, combined 87Sr/86Sr and 143Nd/144Nd data, and use of multi-dimensional log-ratio discriminant function based diagrams and other geological and geophysical considerations, we infer that mafic magmas from the SCN were generated by partial melting of continental lithospheric mantle in an extensional setting. Inverse modelling of primary magmas from the SCN further indicates that the source region is not depleted in high-field strength elements (HFSE) compared to large ion lithophile elements (LILE) and rare-earth elements (REE). The petrogenesis of evolved magmas from the SCN is consistent with the partial melting of the continental crust facilitated by influx of mantle-derived magmas. Generally, an extensional setting is indicated for the SCN despite continuing subduction at the Middle America Trench.

Özet

The Sierra de Chichinautzin (SCN) volcanic field is considered one of the key areas to understand the complex petrogenetic processes at the volcanic front of the Mexican Volcanic Belt (MVB). New as well as published major- and trace-element and Sr and Nd isotopic data are used to constrain the magma generation and evolution processes in the SCN. From inverse and direct modelling, combined 87Sr/86Sr and 143Nd/144Nd data, and use of multi-dimensional log-ratio discriminant function based diagrams and other geological and geophysical considerations, we infer that mafic magmas from the SCN were generated by partial melting of continental lithospheric mantle in an extensional setting. Inverse modelling of primary magmas from the SCN further indicates that the source region is not depleted in high-field strength elements (HFSE) compared to large ion lithophile elements (LILE) and rare-earth elements (REE). The petrogenesis of evolved magmas from the SCN is consistent with the partial melting of the continental crust facilitated by influx of mantle-derived magmas. Generally, an extensional setting is indicated for the SCN despite continuing subduction at the Middle America Trench.

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Cite This Article

VELASCO-TAPIA, F., VERMA, S. P. (2013). Magmatic processes at the volcanic front of Central Mexican Volcanic Belt: Sierra de Chichinautzin Volcanic Field (Mexico). Turkish Journal of Earth Sciences, Cilt: 22 - Sayı: 1, 32–60. https://ajindex.com/articles/219080

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References (10)

  1. Agostini, S., Corti, G., Doglioni, C., Carminati, E., Innocenti, F., Tonarini, S., Manetti, P., Di Vincenzo, G. & Montanari, D. 200 Tectonic and magmatic evolution of the active volcanic front in El Salvador: insight into the Berlín and Ahuachapán geothermal areas. Geothermics 35, 368–408.
  2. Agrawal, S. 1999. Geochemical discrimination diagrams: a simple way of replacing eye-fitted boundaries with probability based classifier surfaces. Journal of the Geological Society of India 54, 335–346.
  3. Agrawal, S., Guevara, M. & Verma, S.P. 2008. Tectonic discrimination of basic and ultrabasic rocks through log-transformed ratios of immobile trace elements. International Geology Review 50, 1057–1079. Aguirre-Díaz, G.J., Dubois, M., Laureyns, J. & Schaaf, P. 2002. Nature and P-T conditions of the crust beneath the central Mexican Volcanic Belt based on Precambrian crustal xenolith. International Geology Review 44, 222–242.
  4. Aitchison, J. 1986. The Statistical Analysis of Compositional Data. Chapman and Hall, London. Alaniz-Alvarez, S.A., Nieto-Samaniego, A.F. & Ferrari, L. 1998. Effect of strain rate in the distribution of monogenetic and polygenetic volcanism in the Transmexican Volcanic Belt. Geology 26, 591–594.
  5. Alvarado, G.E., Soto, G.J., Schmincke, H.-U., Bolge, L.L. & Sumita, M. 200 The 1968 andesitic lateral blast eruption at Arenal volcano, Costa Rica. Journal of Volcanology and Geothermal Research 157, 9–33.
  6. Bardintzeff, J.M. & Deniel, C. 1992. Magmatic evolution of Pacaya and Cerro Chiquito volcanological complex, Guatemala. Bulletin of Volcanology 54, 267–283.
  7. Barnett, V. & Lewis, T. 1994. Outliers in Statistical Data. John Wiley & Sons, Chichester. Bevington, P.R. & Robinson, D.K. 2003. Data Reduction and Error Analysis for the Physical Sciences. Mc-Graw Hill, Boston. Bergantz, G.W. 1989. Underplating and partial melting: implications for melt generation and extraction. Science 245, 1093–1095.
  8. Blatter, D.L., Farmer, G.L. & Carmichael, I.S.E. 2007. A north-south transect across the Central Mexican Volcanic Belt at ~100°W: spatial distribution, petrological, geochemical and isotopic characteristics of Quaternary volcanism. Journal of Petrology 48, 901–950.
  9. Bloomfield, K. 1975. A late-Quaternary monogenetic volcano field in central Mexico. Geologische Rundschau 64, 476–497.
  10. Bolge, L.L., Carr, M.J., Feigenson, M.D. & Alvarado, G.E. 2006. Geochemical stratigraphy and magmatic evolution at Arenal volcano, Costa Rica. Journal of Volcanology and Geothermal Research 15