Evidence for superposed MORB, oceanic plateau and volcanic arc series in the Lesser Caucasus (Stepanavan, Armenia)
Abstract
New field and petro-geochemical investigations of Jurassic ophiolites from the Lesser Caucasus (Stepanavan area, northwestern Armenia) evidence the occurrence of several superposed magmatic suites, comprising: (1) a plutonic sequence from werhlites to gabbros and plagiogranites cross-cutting a serpentinized mantle, covered by scattered pillow-basalts and radiolarites, representative of a slow-spreading ophiolite type; (2) alkaline rocks possibly representative of a remnant oceanic plateau; (3) arc-type volcanic rocks of probable Upper Cretaceous age.
- Publication:
-
Comptes Rendus Geoscience
- Pub Date:
- June 2007
- DOI:
- 10.1016/j.crte.2007.06.002
- Bibcode:
- 2007CRGeo.339..482G