On the association of Magmatic Microgranular Enclaves (MMEs) and cordierite-bearing monzogranites at the Sierra Bermeja Pluton (SW Spain)

Authors

  • Jon Errandonea-Martin Dpto. Geología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Leioa (Bizkaia)
  • Fernando Sarrionandia Dpto. Geología, Facultad de Farmacia, Universidad del País Vasco UPV/EHU, Vitoria-Gasteiz (Álava)
  • Manuel Carracedo-Sánchez Dpto. Geología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Leioa (Bizkaia)
  • Idoia Garate-Olave Dpto. Geología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Leioa (Bizkaia)
  • José Ignacio Gil Ibarguchi Dpto. Geología, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Leioa (Bizkaia)

DOI:

https://doi.org/10.55407/geogaceta102352

Keywords:

magmatic microgranular enclaves, cordierite-bearing monzogranites, Sierra Bermeja, Central Iberian Zone

Abstract

Magmatic Microgranular Enclaves (MMEs) found within the cordierite-bearing monzogranites of the Sierra Bermeja Pluton (southern Iberian Massif) were investigated to understand their potential petrogenetic relationship. Variations in mineralogy, such as the absence of cordierite (Crd) and potassium feldspar (Kfs) in the MMEs, as well as differences in the compositions of biotite (Bt) and plagioclase (Pl), along with the lack of correlations of certain elements in whole-rock geochemistry, suggest a distinct origin for the MMEs compared to the host monzogranites. The MMEs may represent minor globules of a more mafic magma injected into and mixed with the host monzogranitic magma, with no significant alterations in the geochemical characteristics of the latter.

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Published

2021-06-12

How to Cite

Errandonea-Martin, J., Sarrionandia, F., Carracedo-Sánchez, M., Garate-Olave, I., & Gil Ibarguchi, . J. I. (2021). On the association of Magmatic Microgranular Enclaves (MMEs) and cordierite-bearing monzogranites at the Sierra Bermeja Pluton (SW Spain). GEOGACETA, 69, 27–30. https://doi.org/10.55407/geogaceta102352

Issue

Vol. 69 (2021): Enero-Junio

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Artículos

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