DANELIAN , Taniel

We present new biostratigraphic results from two ophiolite outcrops in Armenia. The discovery of upper Tithonian-lower Berriasian diagnostic radiolarian species (Vallupus gracilis Li and Sashida) in the lower radiolarites of the Dali section allows to date more accurately submarine lava eruptions of transitional to alkaline composition. The...

International audience

Radiolarians extracted from the sedimentary cover member of the Amasia ophiolite (NW Armenia), Foraminifera, and microfacies observed in the pre-obduction carbonate platform sequence of the South-Armenian Block (Vedi, SE of Yerevan) provide important time constraints for the geodynamic evolution of the Tethyan realm in the Lesser Caucasus.The...

he Khoy region (NW Iran) is important in the clarification of the structural framework of the alpine belt between the Taurides, the Lesser Caucasus and the NW Iran belt. The area is well-known for these ophiolitic units. We present here new stratigraphic and structural data that can be used to reconstruct the tectonic evolution of this region...