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Petrology, geochemistry, source and tectonic setting of Malek Chah Ruii granitoid (East of Lut Block)

The Malek Chah Rouii granitoid pluton is exposed within the Deh-Salm metamorphic complex in the eastern margin of the Lut zone. The studied granitoid with peraluminous and calc-alkaline nature is composed of tonalite, granodiorite, and granite (monzo- and syenogranite). The predominant minerals are...

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Glavni autori: Abadullah Toulabi Nejad, Ahmad Ahamadi Khalaji, Mohammad Ebrahimi, Habib Biabangard, Rasoul Esmaeili
Format: Artigo
Jezik:Persa
Izdano: University of Isfahan 2021-05-01
Serija:پترولوژی
Teme:
the malek chah rouii granitoid pluton is exposed within the deh-salm metamorphic complex in the eastern margin of the lut zone. the studied granitoid with peraluminous and calc-alkaline nature is composed of tonalite
granodiorite
and granite (monzo- and syenogranite). the predominant minerals are quartz
plagioclase
microcline
orthoclase
biotite
and muscovite with granular
myrmekite to poikiliitic textures. the similar trends of trace and ree on geochemical diagrams normalized to primary mantle and chondrite could be indicative of the common origin of the rocks under study. furthermore
they are enriched in rb
th
u
k
pb
nd
la
sm
hf
ce
and pr and depleted in nb
sr
p
ti
and zr. these characteristics are the common features of the magmas formed in active continental subduction zones affected by continental crust. this pluton is a post-collision type originated in a normal to mature continental arc from a protolith wi
sio2 vs. p2o5
and. zr as well as the qtz-ab-or ternary diagram show that the malek chah rouii granitoid formed at ≥5 kbar water vapor pressure and an average temperature of 775℃. s-type granitoid
post-collision
source
nehbandan
lut block
Online pristup:https://ijp.ui.ac.ir/article_25761_f1eb9c553b7ad8c783d2825f352b88c6.pdf
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