@article { author = {}, title = {Geochemistry and tectonic setting of Maien Bolagh (Takab) alkali gabbros-NW Iran}, journal = {Quarterly Journal of Tethys}, volume = {1}, number = {4}, pages = {303-314}, year = {2013}, publisher = {Payame Noor University}, issn = {2476-7190}, eissn = {2345-2471}, doi = {}, abstract = {Some small gabbro patches emplaced along the thrust fault with W-E trend in the vicinity of Maien Bolagh village at the HT/MP metapelites, a part of the Central Iran zone (near to Sanandaj-Sirjan zone). The coarse-grained dark gabbro samples consist of amphibole, clinopyroxene, plagioclase, minor quartz, titanite, and biotite. Gabbros have high potassic calc-alkaline to shoshonitic affinity. The highly incompatible elements concentrations (e.g. Nb and La) and Zr/Y and Zr/Nb ratios are similar to within plate gabbros. At the assorted discrimination diagrams the gabbros exhibit mostly non-orogenic resemblance. The geochemical characteristics show that the gabrros can be interpreted as melts formed from an enriched mantle in a passive rift position, during an extensional or transtensional tectonic}, keywords = {Gabbro,Maien Bolagh,Within Plate,Geochmistry}, url = {https://jtethys.journals.pnu.ac.ir/article_2778.html}, eprint = {https://jtethys.journals.pnu.ac.ir/article_2778_8943576a51bbcf7d7d9940450503d4a4.pdf} }