Magma mingling and hybridization in the Kuh-e Dom pluton, Central Iran

Sarjoughian, Fatemeh; Kananian, Ali; Haschke, Michael; Ahmadian, Jamshid; Ling, Weijun; Zong, Keqing

doi:10.1016/j.jseaes.2012.03.013

Cited by 38 publications

(17 citation statements)

References 71 publications

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“…This study have allowed us to clarify the magmatic, geodynamic and metallogenic evolution , 2011Asiabanha and Foden, 2012;Castro et al, 2013), IV -Eocene rocks from central Alborz (Verdel et al, 2011), V -Eocene to Mio-Pliocene rocks from the northern UrumiehDokhtar belt (Omrani et al, 2008;Rezaei-Kahkhaei et al, 2011;Sarjoughian et al, 2012;Yeganehfar et al, 2013;Honarmand et al, 2014). The Zangezur and Nakhitchevan blocks belong to the South Armenian block of Gondwanian origin.…”

Section: Discussionmentioning

confidence: 95%

Long-lived, stationary magmatism and pulsed porphyry systems during Tethyan subduction to post-collision evolution in the southernmost Lesser Caucasus, Armenia and Nakhitchevan

et al. 2016

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Section: Discussionmentioning

confidence: 95%

Long-lived, stationary magmatism and pulsed porphyry systems during Tethyan subduction to post-collision evolution in the southernmost Lesser Caucasus, Armenia and Nakhitchevan

et al. 2016

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“…; Kananian et al, 2014;Sarjoughian et al, 2012). Also, voluminous magmatic rocks linearly distributed along the western margin of the Central Iranian within a number of obducted ophiolites from the collisional suture zone are geological evidence of an arc in Iran.…”

Section: Tectonic Settingmentioning

confidence: 99%

“…The Kal-e-Kafi porphyry Cu deposit was formed under high ƒO 2 similar to highly oxidized, magnetite series I-type granitoids that contain abundant primary magnetite and hematite in equilibrium with hypogene copper-iron sulfide minerals; have Fe 3+ /Fe 2+ ratios in biotites (green) from the studied samples plot in the field between NNO and MH oxygen buffers in the Fe 3+ -Fe 2+ -Mg diagram (see Ahmadian, 2012). The high H 2 O and oxidation state inferred for the Kal-e-Kafi adakitic magmas, which increased SO 2 /H 2 S ratios (Burnham, 1979), give them considerable ore-forming potential, because they keep ore-forming components, such as Cu, Au, and S, in the melt, enabling them to partition efficiently into an exsolving fluid phase from the evolved magmas as incompatible elements (Carroll and Rutherford, 1985), and prevent the metals from partitioning into magmatic sulfide residues (Kilian and Stern, 2002).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Eocene K-rich adakitic rocks in the Central Iran: Implications for evaluating its Cu–Au–Mo metallogenic potential

Ahmadian

Sarjoughian

Lentz

et al. 2016

Ore Geology Reviews

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“…The geochemical data and petrographic features of the Toveireh pluton were compared with other adjacent granites in the Naein block, such as Kal-e-Kafi (Ahmadian, 2009), Sohail-Pakuh (Bakhshi, 2014), and Kuh-e-Dom (Sarjoughian et al, 2012) (Table 8).…”

Section: Comparison With the Eocene Intrusions Of The Surrounding Areasmentioning

confidence: 99%

Petrological characteristics of the Middle Eocene Toveireh pluton (southwest of Jandaq, central Iran): implications for the eastern branch of the Neo-Tethys subduction

Sargazi¹,

Torabi²,

Morishita³

2019

Turkish J Earth Sci

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The Middle Eocene Toveireh plutonic body is located in the western margin of the Central-East Iranian Microcontinent (CEIM). This plutonic body consists of granodiorite, syenogranite, and monzogranite compositions. Granodiorite is the most predominant rock unit, which is composed of quartz, plagioclase, K-feldspar, hornblende, and biotite main mineral phases. The Toveireh pluton is metaluminous to weakly peraluminous (A/CNK = 0.85-1.04) and shows a calc-alkaline I-type affinity. Primitive mantle-normalized spidergrams show enrichment of large ion lithophile elements (Rb, Ba, Th, U) and light rare earth elements (REEs) (La/Yb N = 6.8-8.24), as well as depletion of high-field strength elements (Nb, Ta, Ti, P). These rocks are characterized by unfractionated heavy REEs [(Gd/Yb) N = 1.02-1.80] and a moderate negative Eu anomaly (Eu/Eu* = 0.39-0.77) in the chondrite-normalized REE patterns. The geochemical data suggest that the Toveireh pluton was derived from a low degree of partial melting of a mixed source, primarily of mafic and metasedimentary rock, in the middle crust by underplating of mafic magma. Geochemical and petrological features of the studied samples, such as a wide range of Mg# values (21.3-62.2, average: 35.6) and low amounts of mafic microgranular enclaves, indicated minor involvement of the mantle-derived magma components in the source and about 10% mixing with a felsic melt. Magma chamber processes, including melting, assimilation, storage and homogenization, magma mixing, and assimilation and fractional crystallization, played an important role in the magmatic evolution. The hornblende thermobarometry yielded 720 °C to 840 °C ± 23.5 °C and 0.6-1.4 ± 0.16 kbar for the granodiorites, and the biotite thermobarometry revealed 700 °C to 750 °C and 0.77-0.78 kbar for the syenogranites. The combined results suggest that the studied rocks were crystallized in shallow crustal magma chambers. The Toveireh pluton was formed by the subduction of the eastern branch of Neo-Tethyan oceanic crust beneath the CEIM during the Late Triassic to Early Tertiary.

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Magma mingling and hybridization in the Kuh-e Dom pluton, Central Iran

Cited by 38 publications

References 71 publications

Long-lived, stationary magmatism and pulsed porphyry systems during Tethyan subduction to post-collision evolution in the southernmost Lesser Caucasus, Armenia and Nakhitchevan

Long-lived, stationary magmatism and pulsed porphyry systems during Tethyan subduction to post-collision evolution in the southernmost Lesser Caucasus, Armenia and Nakhitchevan

Eocene K-rich adakitic rocks in the Central Iran: Implications for evaluating its Cu–Au–Mo metallogenic potential

Petrological characteristics of the Middle Eocene Toveireh pluton (southwest of Jandaq, central Iran): implications for the eastern branch of the Neo-Tethys subduction

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