Un modelo geodinámico para el volcanismo Neógeno del Sureste Ibérico

C. Martín Escorza; J. López Ruiz

doi:10.3989/egeol.88443-4542

Un modelo geodinámico para el volcanismo Neógeno del Sureste Ibérico

Authors

C. Martín Escorza Museo Nacional de Ciencias Naturales. C.S.I.C.
J. López Ruiz Museo Nacional de Ciencias Naturales. C.S.I.C.

DOI:

https://doi.org/10.3989/egeol.88443-4542

Keywords:

Volcanisme, sliding crack, wrench fault, SE Iberia

Abstract

The chemical composition of the Neogene volcanic rocks from SE Iberia, and its geographic distribution in relation to the Palomares megafault (PF), suggests that this volcanism has been generated by a mechanism as the experimentaly proposed by Moss and Gupta (1982). According to this model, the volcanism oC this area is related to a dextral brittle event of the PF. Three stages of evolution have been identified in this event. The first stage produces a dextral strike slip along the PF plane with a plunge of 200, which generates the calc-alkaline magmas from the Cabo de Gata sector and the high-K calc-alcaline and shoshonitic magmas from the Mazarrón-Cartagena sector. During the second stage, with similar tectonic features as the former but horizontal strike slip, it takes place a new volcanic activity in the Cabo de Gata sector, and the genesis of the younger rocks from Mazarrón-Cartagena sector. Lastly, the ultrapotassic and shoshonitic rocks from Vera are related to the third stage.

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Published

1988-08-30

How to Cite

Martín Escorza, C., & López Ruiz, J. (1988). Un modelo geodinámico para el volcanismo Neógeno del Sureste Ibérico. Estudios Geológicos, 44(3-4), 243–251. https://doi.org/10.3989/egeol.88443-4542

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Issue

Vol. 44 No. 3-4 (1988)

Section

Articles

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