Vulcanismo submarino del Santoniense en el Subbético: datación con nannofósiles e interpretación (formación Capas Rojas, Alamedilla, provincia de Granada)

J. M. Molina; J. A. Vera; G. de Gea

doi:10.3989/egeol.98545-6218

Vulcanismo submarino del Santoniense en el Subbético: datación con nannofósiles e interpretación (formación Capas Rojas, Alamedilla, provincia de Granada)

Authors

J. M. Molina Departamento de Geología. Facultad de Ciencias Experimentales. Universidad de Jaén
J. A. Vera Departamento de Estratigrafía y Paleontología. Facultad de Ciencias. Universidad de Granada.
G. de Gea Departamento de Geología. Facultad de Ciencias Experimentales. Universidad de Jaén

DOI:

https://doi.org/10.3989/egeol.98545-6218

Keywords:

basic magmatism, pillow lavas, nannofossils, Median Subbetic, Santonian, Capas Rojas Formation

Abstract

Submarine volcanic rocks (pillow lavas) appear into the marly limestones and marls of the Capas Rojas Formation in the Median Subbetic. The dating with nannoplankton of the immediately underlying and overlying materials to these volcanic rocks has allow us to precise the age of this volcanic activity as Late Santonian (nannofossil biozone of Rucinolithus hayi. This volcanic event arose 84 million years ago, according to the absolute age obtained with the calibration of this biozone. It is the last Mesozoic volcanic activity registered until now in the External Zones of the Betic Cordilleras. The age of this event corresponds to the ending part of the interval of the Sudiberian continental margin evolution as an extensive margin, relatively nearly to the time in which it evolved to a convergent margin

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Published

1998-12-30

How to Cite

Molina, J. M., Vera, J. A., & de Gea, G. (1998). Vulcanismo submarino del Santoniense en el Subbético: datación con nannofósiles e interpretación (formación Capas Rojas, Alamedilla, provincia de Granada). Estudios Geológicos, 54(5-6), 191–197. https://doi.org/10.3989/egeol.98545-6218

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Issue

Vol. 54 No. 5-6 (1998)

Section

Articles

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