10 research outputs found
γ-Aminobutyric acid hydrochloride supported on superparamagnetic γ-Fe2O3@SiO2 as a novel heterogeneous nanocatalyst for the synthesis of 2-amino-5-alkylidene-thiazol-4-one derivatives
Geochemistry and tectonic significance of the Fannuj-Maskutan SSZ-type ophiolite (Inner Makran, SE Iran)
From Jurassic rifting to Cretaceous subduction in NW Iranian Azerbaijan: geochronological and geochemical signals from granitoids
Evidence for mantle exhumation along the Arabian margin in the Zagros (Kermanshah area, Iran)
The Kermanshah Crush Zone (Zagros, Iran) comprises elements from the
Tethys Ocean and the former ocean-continent transition. Serpentinites
and gabbros exposed in this area were formerly interpreted as originated
from Tethys ocean and other residual Tethys oceanic domains all situated
northeast of the Bisotoun platform. However, the structural
relationships between these ultramafic units remained unclear. New field
work in the Kermanshah-Harsin area led to the description of detachment
faults over serpentinised mantle. ``Mid-Cretaceous'' carbonate
``extensional allochthons'' (pre-rift) and pelagic sediments (syn- to
post-rift) dated from the Liassic are exposed above these detachments.
Such an age mismatch can be explained by a polyphased mantle exhumation
in a narrow basin along the Arabian margin with the assumption that no
radiolarite nappe has been thrusted over the Bisotoun. Another
detachment has been identified further to the NE on Eocene gabbro. So
far, this one is considered as an intra-oceanic detachment from the
residual Tethys. A first evolution model is proposed from early Jurassic
to late Cretaceous obduction along with how this interpretation may be
improved by future field work