Mineralogía y génesis de las arcillas de las unidades del Campo de Gibraltar. I. Areniscas del Aljibe

P. Rodríguez Jiménez; M. D. Ruiz Cruz

doi:10.3989/egeol.88441-2522

Mineralogía y génesis de las arcillas de las unidades del Campo de Gibraltar. I. Areniscas del Aljibe

Authors

P. Rodríguez Jiménez Dpto. de Química Inorgánica, Cristalografía y Mineralogía. Fac. de Ciencias. Universidad de Málaga
M. D. Ruiz Cruz Dpto. de Química Inorgánica, Cristalografía y Mineralogía. Fac. de Ciencias. Universidad de Málaga

DOI:

https://doi.org/10.3989/egeol.88441-2522

Keywords:

Kaolinite, illite, interstratified mineral, diagenesis, Aljibe unit flysch, Campo de Gibraltar

Abstract

The «areniscas del Aljibe» are bimodal materials formed by eolic quartz with either clay or ferrous coatings and quartz sintaxial cemento The total mineralogical composition of the rocks and the fine fraction is very homogeneous in the sequences studied. The clay fraction is formed by kaolinite, illite and interstratified illite-5mectite. These minerals have variable origins, Thus, detritaI kaolinite pM and autbigenic kaolinite with high crystalinity are common, together with detrital illite and fibrous neoformed illite. Tbe smectite content of the mixed-layerd mineraIs suggests a different degree of diagenesis and a diverse paleogeographic situation for these sequences.

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Published

1988-04-30

How to Cite

Rodríguez Jiménez, P., & Ruiz Cruz, M. D. (1988). Mineralogía y génesis de las arcillas de las unidades del Campo de Gibraltar. I. Areniscas del Aljibe. Estudios Geológicos, 44(1-2), 31–46. https://doi.org/10.3989/egeol.88441-2522

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Issue

Vol. 44 No. 1-2 (1988)

Section

Articles

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