Table of Contents
Geosciences, Volume 7, Issue 2 (June 2017)
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Cover Story (view full-size image) The Betic Ophiolites originated along an ultra-slow mid-ocean ridge located at the westernmost end [...] Read more. The Betic Ophiolites originated along an ultra-slow mid-ocean ridge located at the westernmost end of the Tethys Ocean. This oceanic floor was developed, according to SHRIMP dating of their igneous zircons, from the Lower Jurassic, just at the beginning of the Pangaea break-up between the Iberia–European and the Africa–Adrian plates. Subsequently, the oceanic spreading migrated northeastward, to form the Ligurian and Alpine Tethys oceans, from Middle Jurassic times according to the same dating method (Figures 6–9). In the cover, CL images of zircons, from representative outcrops of eclogitized Betic Ophiolites, show their igneous ages and some of their eoalpine metamorphic ones. View this paper