Soltan Maidan Complex (SMC) in the eastern Alborz structural zone, northern Iran: magmatic evidence for Paleotethys development

Derakhshi, Morteza; Ghasemi, Habibollah

doi:10.1007/s12517-013-1180-2

Cited by 22 publications

(20 citation statements)

References 48 publications

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“…Murphy et al 2008). A comparison of the gabbro's geochemical features with those reported by Derakhshi and Ghasemi (2015) for the Late Ordovician-Silurian Soltan Maidan basalts, 400-1200 m thick, in the rift zone north of our field area shows many similarities between the two sets, most notably comparable abundances for SiO 2 , Na 2 O and K 2 O, similar REE patterns with moderate fractionation and lack of significant Eu anomalies. There are also similarities in some trace elements, for example in a Zr/Y vs. Zr diagram (Pearce and Norry 1979) both data sets plot in the field of 'within plate basalt'.…”

Section: Neoproterozoic Arc Magmatism and Ordovician Riftingsupporting

confidence: 57%

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Ordovician mafic magmatism in an Ediacaran arc complex, Sibak, northeastern Iran: the eastern tip of the Rheic Ocean

et al. 2018

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The assembly of Gondwana in the Ediacaran was concluded by extensive arc magmatism along its northern margin. Extensional events in the early Paleozoic led to rifting and the eventual separation of terranes, which were later assimilated in different continents and orogens. The Sibak area of northeastern Iran records these events, including late Precambrian volcanic-sedimentary processes, metamorphism, and magmatism. A granite at Chahak in the Sibak Complex yields a zircon U–Pb age of 548.3 ± 1.1 Ma, whereas a spatially associated gabbro has an age of 471.1 ± 0.9 Ma. The latter corresponds to the earliest stages of rifting in the nearby Alborz domain, with the deposition of clastic sedimentary sequences, basaltic volcanism, and, as indicated by indirect evidence, coeval granitic plutonism. The Chahak gabbro is thus one of the earliest witnesses of the rifting processes that eventually led to the development of the Rheic Ocean and were indirectly linked to subduction of Iapetus at the Laurentian margin and the early development of the Appalachian orogen.

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Section: Neoproterozoic Arc Magmatism and Ordovician Riftingsupporting

confidence: 57%

“…There are also similarities in some trace elements, for example in a Zr/Y vs. Zr diagram (Pearce and Norry 1979) both data sets plot in the field of 'within plate basalt'. Derakhshi and Ghasemi (2015)…”

Section: Neoproterozoic Arc Magmatism and Ordovician Riftingmentioning

confidence: 99%

Ordovician mafic magmatism in an Ediacaran arc complex, Sibak, northeastern Iran: the eastern tip of the Rheic Ocean

et al. 2018

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“…Ordovician alkaline gabbros and diorites associated with volcanic rocks (Soltan-Meidan Formation) are common in NE Iran and mark early stages of the rifting that opened Paleotethys (Moghadam et al, 2015b). Volcanic rocks of the Soltan-Meidan Formation vary from basalt to basaltic-andesite with transitional to alkaline natures (within-plate geochemical signature), and high contents of REEs, Nb and Zr, which were suggested to originate from partial melting of a garnet peridotite mantle source within a rift-related tectonic setting (Derakhshi and Ghasemi, 2015). confirming that such rocks were exposed at this time and were able to contribute detritus to sediments.…”

Section: Implications For Paleozoic Sedimentary Sourcesmentioning

confidence: 99%

Early Paleozoic tectonic reconstruction of Iran: Tales from detrital zircon geochronology

Moghadam

Griffin

et al. 2017

Lithos

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In this study we use detrital zircons to probe the Early Paleozoic history of NE Iran and evaluate the link between sediment sources and Gondwanan pre-Cadomian, Cadomian and younger events. U-Pb zircon ages and Hf isotopic compositions are reported for detrital zircons from Ordovician and Early Devonian sedimentary rocks from NE Iran.These clastic rocks are dominated by zircons with major age populations at ~2.5 Ga, ~0.8-0.6 Ga, 0.5 Ga and ~0.5-0.4 Ga as well as a minor broad peak at ~1.0 Ga. The source of 2.5 Ga detrital zircons is enigmatic; they may have been supplied from the Saharan Metacraton (or West African Craton) to the southwest or Afghanistan-Tarim to the east. The detrital zircons with age populations at 0.8-0.6 Ga probably originated from Cryogenian-Ediacaran juvenile igneous rocks of the Arabian-Nubian Shield; this inference is supported by their juvenile Hf isotopes, although some negative εHf (t) values suggest that other sources (such as the West African Craton) were also involved.The age peak at ca 0.

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“…After this collision, early Ordovician to Silurian rifting was responsible for Paleo-Tethys, opening and separation of, Istanbul fragment (Ustaömer et al, 2005) from northern Gondwana. The evidence of this rifting in NE Iran includes the Soltan-Meidan basaltic rocks with upper Ordovician-lower Silurian in age (Derakhshi and Ghasemi, 2013). Further rifting of the Gondwana land during Permian times (∼280-250 Ma) and Neotethys propagation was responsible for the separation of central Iran, the Alborz and the Tauride-Anatolian blocks and their travel toward Eurasia, each containing Cadomian rocks.…”

Section: Geodynamic Implicationsmentioning

confidence: 97%

Petrology, geochemistry and zircon U–Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana

et al. 2015

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Soltan Maidan Complex (SMC) in the eastern Alborz structural zone, northern Iran: magmatic evidence for Paleotethys development

Cited by 22 publications

References 48 publications

Ordovician mafic magmatism in an Ediacaran arc complex, Sibak, northeastern Iran: the eastern tip of the Rheic Ocean

Ordovician mafic magmatism in an Ediacaran arc complex, Sibak, northeastern Iran: the eastern tip of the Rheic Ocean

Early Paleozoic tectonic reconstruction of Iran: Tales from detrital zircon geochronology

Petrology, geochemistry and zircon U–Pb dating of Band-e-Hezarchah metabasites (NE Iran): An evidence for back-arc magmatism along the northern active margin of Gondwana

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