TY  - JOUR
A1  - Mesbahi, Fatemeh
A1  - Mohajjel, Mohammad
A1  - Oberhänsli, Roland
A1  - Moazzen, Mohsen
T1  - The mafic rocks along the North Tabriz Fault, possible remnants of Neo-Tethys oceanic crust in NW Iran
JF  - Geopersia
N2  - The North Tabriz Fault is seismologically an active fault with current right lateral strike-slip movements. Restricted mafic to intermediate Fate Cretaceous igneous rocks are exposed along the North Tabriz Fault. Whole rock and clinopyroxene phenocrysts geochemistry were studied in order to characterize the petrogenesis of these mafic rocks and their possible relation to an oceanic crust. The results indicate a tholeiitic parental magma that formed in an evolved mid-ocean ridge tectonic setting similar to the Iceland mid-Atlantic ridge basalts. The ocean floor basalt characteristics give evidence of an oceanic crust along the North Tabriz Fault. Therefore, the trend of the North Tabriz Fault more likely marks a suture zone related to the closure of a branch of the Neo-Tethys Ocean in the NW Iran. This fault, in addition to the Caucasus and Zagros suture zones, compensates an important part of the convergence between the Arabian and Eurasian plates resulting from the Red Sea divergence. It is concluded that the North Tabriz Fault appears to be possible southeastern continuation of the North Anatolian suture zone.
KW  - North Tabriz Fault
KW  - Mafic Rocks
KW  - Tholeiite
KW  - Late Cretaceous
Y1  - 2017
U6  - https://doi.org/10.22059/geope.2017.232747.648323
SN  - 2228-7817
VL  - 7
SP  - 301
EP  - 311
PB  - Graduate Faculty of Environment, University of Theran
CY  - Tehran
ER  - 
TY  - JOUR
A1  - Behyari, Mahdi
A1  - Mohajjel, Mohammad
A1  - Sobel, Edward
A1  - Rezaeian, Mahnaz
A1  - Moayyed, Mohssen
A1  - Schmidt, Alexander
T1  - Analysis of exhumation history in Misho Mountains, NW Iran
BT  - insights from structural and apatite fission track data
JF  - Neues Jahrbuch für Geologie und Paläontologie : merged with Neues Jahrbuch für Geol. und Paläont. Monatshefte". Abhandlungen
N2  - The Misho complex in Northwest Iran is a prominent topographic massif bounded by well known active faults. Our new structural analysis of this area indicates that faulting has important role in the exhumation of this complex. The conjugate orientation of the North and South Misho Faults caused uplift in the Misho and exhumation of the Precambrian crystalline basement. Our structural and stratigraphic data shows that rapid uplift could have been initiation since the 21-22 Ma and exhumation rate was about 0.16 to 0.24 km/Ma. To refine this age, we performed U/Pb analysis of detrital zircon from the Upper Red Formation using LA-ICP-MS. We conducted AFT analysis on 6 basement samples from the hanging wall and 1 sample from the Upper Red Formation in the footwall NMF. Uplift in the hanging wall of NMF led to resting of sample 916 marl. This geochronologic and thermochronologic data shows that exhumation in the MC is diachronously along strike and affected by faults. The phase of exhumation is documented in the study area and entire Iranian plateau is related to the final closure of the Neo-Tethys and northward motion of the Arabian Plate.
KW  - Misho complex
KW  - NW Iran
KW  - North Tabriz Fault
KW  - apatite fission track
KW  - exhumation
Y1  - 2017
U6  - https://doi.org/10.1127/njgpa/2017/0642
SN  - 0077-7749
VL  - 283
IS  - 3
SP  - 291
EP  - 308
PB  - Schweizerbart
CY  - Stuttgart
ER  -