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Models of magnetic and Bouguer gravity anomalies for the deep structure of the central Alboran Sea basin |
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| Authors: | J Galindo-Zaldívar F González-Lodeiro A Jabaloy A Maldonado A A Schreider |
| Institution: | (1) Departamento de Geodinámica, Universidad de Granada, 18071-Granada, Spain, ES;(2) Instituto Andaluz de Ciencias de la Tierra (C.S.I.C – Universidad de Granada), 18071-Granada, Spain, ES;(3) P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, 23, Krasikova, 117218 Moscow, Russia, RU |
| Abstract: | Magnetic and gravimetric data from the central Alboran Sea allow identification of two axes of crustal thinning, which were probably active during the Oligocene–Early Miocene. The western Alboran basin axis is subparallel and may be related in origin to the Gibraltar Arc. The ENE–WSW trending Alboran Channel axis is probably intruded by basic igneous rocks and may represent the western end of the Algerian–Balearic basin rift. Present-day small areas with high heat flow may well be related to volcanism and an anomalous mantle. Areas of active deformation in the Alboran Sea accommodate the present Eurasia-Africa convergence. Received: 17 May 1996 / Revision received: 19 April 1997 |
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