Geochemistry and petrogenesis of lamprophyric dykes and the associated rocks from Eslamy peninsula, NW Iran: Implications for deep-mantle metasomatism

Moayyed, Mohsen; Moazzen, Mohssen; Calagari, Ali Asghar; Jahangiri, Ahmad; Modjarrad, Monir

doi:10.1016/j.chemer.2006.04.002

Cited by 25 publications

(19 citation statements)

References 22 publications

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“…The thickness of the crust under the Eslamy peninsula located in the central part of Lake Urmia is about 41 km, and it increases to about 48 km towards the east and west of the peninsula. This may reflect more crustal thinning in the central part of Lake Urmia and consequent mantle diapirism under the Eslamy peninsula (Moayyed et al, 2008).…”

mentioning

confidence: 99%

Quaternary travertine ridges in the Lake Urmia area: active extension in NW Iran

Mohajjel¹,

Taghipour²

2014

Turkish J Earth Sci

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mentioning

confidence: 99%

Quaternary travertine ridges in the Lake Urmia area: active extension in NW Iran

Mohajjel¹,

Taghipour²

2014

Turkish J Earth Sci

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“…Spider diagrams pattern for the phlogopite is similar to the pattern for the whole rock but Rh, Ti, K, and Ba contents in the phlogopite are higher than the entire rock and Zr, Nd, P, Sr, Ce, La, Nb and Th contents are lower than those for the whole rock (Moayyed et al 2008).…”

Section: Lamprophyric Dykesmentioning

confidence: 57%

“…The error in the analyses was about 1%. In addition to the above-mentioned samples, the results of analyses included 15 samples (Moayyed et al 2008) were used for drawing the graphs and conclusions (table 2).…”

Section: Methodsmentioning

confidence: 99%

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Petrography, geochemistry and geodynamic environment of potassic alkaline rocks in Eslamy peninsula, northwest of Iran

2009

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Eslamy peninsula, 360 km 2 in area, is located in the eastern coast of Urmieh lake in the northwest of Iran. This peninsula is a complex stratovolcano with a collapsed center, which is elevated due to later intrusions of sub-volcanic masses with trachytic to microsyenitic composition. The composite cone consists of a sequence of leucite tephrite, tephrite, leucite basanite, basanite and related pyroclastic rocks. Magmatic activities in the Eslamy peninsula begin with potassic alkaline to ultrapotassic and basic, silica-undersaturated shoshonitic rocks and they are followed by intrusions of lamprophyric dykes and end with acidic magmatism including trachytic, microsyenitic, syenitic and phonolitic domes. The original magma of the Eslamy peninsula rocks has a potassic alkaline nature (Roman type) rich in LREE and LILE and depleted of HREE. These characteristics suggest that the origin of magma can be from deep mantle with a garnet lherzolite composition, a low partial melting rate which has been contaminated by crustal materials in its way up. Fractional crystallization of olivine, diopsidic clinopyroxene and leucite played an important role in the evolution of magmas. Scrutinizing the geodynamic environment of Eslamy peninsula rocks in discrimination diagrams indicates that these rocks must have been formed in a post-collision magmatic arc setting.

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“…Lamprophyric rocks of different nature are reported from northwestern Iran (e.g., Moayyed et al, 2008;Aghazadeh, 2009;Aghazadeh et al, 2010;Aghazadeh and Badrzadeh, 2012). They crop out as dykes and sills cutting Cretaceous and Cenozoic terranes, and they are related to the evolution of the Zagros orogen and to the subduction of Neo-Tethys ocean crust in northwestern Iran.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Geochemistry, Sr–Nd–Pb isotopes and geochronology of amphibole- and mica-bearing lamprophyres in northwestern Iran: Implications for mantle wedge heterogeneity in a palaeo-subduction zone

Aghazadeh

Prelević

Badrzadeh

et al. 2015

Lithos

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Please cite this article as: Aghazadeh, Mehraj, Prelević, Dejan, Badrzadeh, Zahra, Braschi, Eleonora, van den Bogaard, Paul, Conticelli, Sandro, Geochemistry, Sr-NdPb isotopes and geochronology of amphibole-and mica-bearing lamprophyres in northwestern Iran: Implications for mantle wedge heterogeneity in a paleo-subduction zone, LITHOS (2015), doi: 10.1016/j.lithos.2015.01.001 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T Nd/ 144 Nd down to 0.512463 with a negative correlation, consistent with the trace element distribution related with an enriched mantle source modified after sediment recycling during subduction and continental collision. ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Geochemistry and petrogenesis of lamprophyric dykes and the associated rocks from Eslamy peninsula, NW Iran: Implications for deep-mantle metasomatism

Cited by 25 publications

References 22 publications

Quaternary travertine ridges in the Lake Urmia area: active extension in NW Iran

Quaternary travertine ridges in the Lake Urmia area: active extension in NW Iran

Petrography, geochemistry and geodynamic environment of potassic alkaline rocks in Eslamy peninsula, northwest of Iran

Geochemistry, Sr–Nd–Pb isotopes and geochronology of amphibole- and mica-bearing lamprophyres in northwestern Iran: Implications for mantle wedge heterogeneity in a palaeo-subduction zone

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