Zircon U–Pb age constraints from Iran on the magmatic evolution related to Neotethyan subduction and Zagros orogeny

Chiu, Han-Pang; Chung, Sun‐Lin; Zarrinkoub, Mohammad Hossein; Mohammadi, Seyyed Saeid; Khatib, Mohammad Mahdi; Iizuka, Yoshiyuki

doi:10.1016/j.lithos.2013.01.006

Cited by 362 publications

(262 citation statements)

References 86 publications

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“…In the Sanandaj-Sirjan Metamorphic Belt (SSMB), two metamorphic belts are distinguished, which are separated by an andesitic-granitic Mesozoic island arc (Berberian and Berberian 1981;Desmon and Beccaluva 1983;Malekizadeh 1999;Mohajjel et al 2003;Chiu et al 2013). In the ZOB, the metamorphic belt is located in the northeast of the ophiolitic belt (Figs 1 and 2).…”

mentioning

confidence: 99%

Tectonic evolution of the Zagros Orogen in the realm of the Neotethys between the Central Iran and Arabian Plates: An ophiolite perspective

Ajirlu

Moazzen

Hajialioghli

2016

Central European Geology

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confidence: 99%

Tectonic evolution of the Zagros Orogen in the realm of the Neotethys between the Central Iran and Arabian Plates: An ophiolite perspective

Ajirlu

Moazzen

Hajialioghli

2016

Central European Geology

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“…Therefore, the tectonic regime between the Arabian margin and Sanandaj-Sirjan plate altered from passive to convergent (Ricou 1994). During the Mesozoic, the oceanic crust of the Neotethys was subducted beneath the Eurasian plate (Golonka 2004;Molinaro et al 2005;Agard et al 2011;Yousefirad 2011;Mouthereau et al 2012;Karimi et al 2012;Mohajjel & Fergusson 2014;Sheikholeslami 2015), and the Sanandaj-Sirjan zone occupied the position of a magmatic arc Agard et al 2005;Agard et al 2011;Karimi et al 2012;Mouthereau et al 2012;Chiu et al 2013;Mohajjel & Fergusson 2014;Akbari et al 2016;Hassanzadeh & Wernicke 2016). Subduction and arc magmatism began in latest Triassic/Early Jurassic time, culminating at ~170 Ma (Hassanzadeh & Wernicke 2016).…”

Section: Geological Settingmentioning

confidence: 99%

Geochemical characteristics and conditions of formation of the Chah-Bazargan peraluminous granitic patches, ShahrBabak, Iran

Fazlnia¹

2017

Geologica Carpathica

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Xenoliths of garnet-biotite-kyanite schist from the Qori metamorphic complex (southern part of the Sanandaj-Sirjan zone, northeast Neyriz, Zagros orogen in Iran) in the 173.0±1.6 Ma Chah-Bazargan leuco-quartz diorite intrusion were studied. This intrusion caused these schist xenoliths to be metamorphosed to the pyroxene hornfels facies (approximately 4.5±1.0 kbar and 760±35 °C), converting them to diatexite migmatite as a result of partial melting of the xenoliths. These melts are granites in composition. Melt volumes of 20 to 30 vol. % were calculated for small patches of the peraluminous granites. It is possible that anatectic melting affected only the leucosome, such that melting was more than 20 to 30 vol. %. It is possible that a large amount of melt was not extracted due to balanced in situ crystallization, the adhesion force between melt and crystal (restite), and high viscosity of the leucosome. The Chah-Bazargan peraluminous granites are depleted in trace elements such as REEs, HFSE (Ti, Zr, Ta, Nb, Th, U, Hf, Y), Ba, Pb, and Sr. These elements are largely insensitive to source enrichment, but sensitive to the amounts of main and accessory minerals. These elements were hosted by minerals such as garnet, biotite, muscovite, K-feldspar, plagioclase, ilmenite, apatite, monazite, and zircon in the source (diatexitic migmatitic xenoliths).

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“…The northward migration of the Afro-Arabian plate caused subduction during the late Cretaceous to Miocene beneath the Iranian block, followed by collision between the Anatolian-Iranian and Arabian plates during middle to late Miocene (Berberian and King, 1981;Alici Sen et al, 2004;Chiu et al, 2013). This continental collision was accommodated by crustal shortening and thickening in eastern Anatolia and northwestern Iran (Sengor and Yılmaz, 1981;Temel et al, 1998;Alici Sen et al, 2004;Dilek et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The late Miocene magmatic rocks with calc-alkaline and shoshonitic (or ultrapotassic) characteristics are found mainly along the UDMA (Chiu et al, 2013) and occur in the northern parts of the TurkishIranian High Plateau (Moine-Vaziri et al, 1991;Dilek et al, 2010;Eyuboglu et al, 2012). Plio-Quaternary magmatic rocks are represented by alkaline rocks with and/or without subduction overprints and by shoshonitic rocks in several regions of the UDMA, but mostly in NW Iran, in the Turkish-I ranianHighPlateau (e.g., Keskin, 2003;Kheirkhah et al, 2009;Elitok et al, 2010;Eyuboglu et al, 2012;Allen et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Adakitic volcanism is minor in the region north of the Bitlis-Zagros suture zone in the northern and southern parts (e.g., Jahangiri, 2007;Omrani et al, 2008;Chiu et al, 2013). However, different pulses of magmatism are widespread in the Eastern Pontides-Lesser Caucasus and eastern Iranian-Azerbaijan regions, which have been correlated with the northward subduction of the southern Neotethyan Ocean (Yılmaz et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

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Late Miocene K-rich volcanism in the Eslamieh Peninsula (Saray), NW Iran: Implications for geodynamic evolution of the Turkish–Iranian High Plateau

et al. 2014

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a b s t r a c tKeywords: High-K lavas Geochemistry, Sr-Nd-Pb isotopes, Post-collisional magmatism Iran Post-collisional volcanism in northwestern Iran is represented by the Saray high-K rocks including leucite-bearing under-saturated and leucite-free silica saturated rocks. We report Ar-Ar age data which constrain the age as ca. 11Ma (late Miocene). Most of clinopyroxene phenocrysts from the volcanic rocks have complex oscillatory zoning, with high Ti and Al cores, low Ti and high Al mantled clinopyroxenes, grading into low Ti and Al outer rims. All the rocks are highly enriched in incompatible trace elements and have identical Sr-Nd-Pb isotopes. Enrichment in incompatible elements and other geochemical features for the Saray lavas suggest a metasomatized sub-continental lithospheric mantle (SCLM) as the magma source. The negative Nb- Ta Pb isotopic values of the Saray lavas imply the involvement of slab terrigenous sediments and/or a continental lithosphere. Isotopically, the volcanic rocks define a binary trend, representing 5-8% mixing between the primary mantle and sediment melts. Our melting models suggest residual garnet in the source and are incompatible with partial melting of amphibole and/or phlogopite bearing lherzolites, although the complex geochemical features might indicate the result of mixing between melts produced by different sources or a homogenous melt passing through a compositionally-zoned mantle during multiple stages of partial melting and melt migration. The geochronological, geochemical and isotopic data for the Saray rocks suggest that these Late Miocene magmas were derived from a small degree of partial melting of subduction-metasomatized (subcontinental) lithospheric mantle source in a post-collisional setting.

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Zircon U–Pb age constraints from Iran on the magmatic evolution related to Neotethyan subduction and Zagros orogeny

Cited by 362 publications

References 86 publications

Tectonic evolution of the Zagros Orogen in the realm of the Neotethys between the Central Iran and Arabian Plates: An ophiolite perspective

Tectonic evolution of the Zagros Orogen in the realm of the Neotethys between the Central Iran and Arabian Plates: An ophiolite perspective

Geochemical characteristics and conditions of formation of the Chah-Bazargan peraluminous granitic patches, ShahrBabak, Iran

Late Miocene K-rich volcanism in the Eslamieh Peninsula (Saray), NW Iran: Implications for geodynamic evolution of the Turkish–Iranian High Plateau

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