THE MIDDLE JURASSIC SILICEOUS SEDIMENTARY COVER AT THE TOP OF THE VOURINOS OPHIOLITE (GREECE)

Authors

  • Marco Chiari C.N.R., Istituto di Geoscienze e Georisorse, Sezione di Firenze, Via La Pira 4, 50121, Italy
  • Valerio Bortolotti Dipartimento di Scienze della Terra, Università di Firenze, and C.N.R., Istituto di Geoscienze e Georisorse, Sezione di Firenze, Via La Pira 4, 50121, Italy
  • Marta Marcucci Dipartimento di Scienze della Terra, Università di Firenze, and C.N.R., Istituto di Geoscienze e Georisorse, Sezione di Firenze, Via La Pira 4, 50121, Italy
  • Adonis Photiades Institute of Geology and Mineral Exploration, 70 Messoghion Avenue, 11527 Athens, Greece
  • Gianfranco Principi Dipartimento di Scienze della Terra, Università di Firenze, and C.N.R., Istituto di Geoscienze e Georisorse, Sezione di Firenze, Via La Pira 4, 50121, Italy

DOI:

https://doi.org/10.4454/ofioliti.v28i2.197

Keywords:

Abstract

The age of the Vourinos ophiolitic massif, pertaining to the Jurassic Tethys Ocean, is not yet exactly known. Four sections in the cherts at the top of the basalts yielded well preserved radiolarian assemblages according to which the age of the end of the “ophiolitic activity” (= the end of ocean spreading) was immediately before or within the latest Bajocian interval. A radiometric (Ar/Ar) age of the metamorphic sole at the base of the ophiolite gave 171±4 Ma (late Bajocian), this is, an age slightly older than that of the cherts: this can mean that the metamorphic soles pertain to an intraoceanic hot thrust, doubling the oceanic crust/lithosphere.

Downloads

Published

2003-07-01

How to Cite

Chiari, M., Bortolotti, V., Marcucci, M., Photiades, A., & Principi, G. (2003). THE MIDDLE JURASSIC SILICEOUS SEDIMENTARY COVER AT THE TOP OF THE VOURINOS OPHIOLITE (GREECE). Ofioliti, 28(2), 95-103. https://doi.org/10.4454/ofioliti.v28i2.197

Issue

Vol. 28 No. 2 (2003)

Section

Articles