Geochemistry and petrogenesis of Raviz-Shanabad intrusions (SE UDMB): an evidence for Late Eocene magmatism

Nejad, Hamideh Salehi; Ahmadipour, Hamid; Moinzadeh, Hesamodin; Moradian, A.; Santos, J. F.

doi:10.1080/00206814.2020.1728585

Cited by 4 publications

(1 citation statement)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Data from the Tafresh district share similar Nd isotope ratios indicating mantle‐dominant melt, and dominantly high Al contents (i.e., Al 2 O 3 ˃ ca. 17.5) and SiO 2 content less than 58 wt% (Group I, 45–18 Ma) with the Eocene–Early Miocene UDMA mafic suites including these districts: Eshtehard (Babazadeh, D'Antonio, Cottle, et al, 2021), Kahrizak (Yazdani et al, 2019), Ardestan (Babazadeh et al, 2017; Babazadeh, Ghorbani, et al, 2019; Yeganehfar, Ghorbani, Shinjo, & Ghaderi, 2013), Rabor (Chekani Moghadam, Tahmasbi, Ahmadi‐Khalaji, & Santos, 2018), Natanz (Haschke, Ahmadian, Murata, & McDonald, 2010), Haji Abad (Kazemi, Kananian, Xiao, & Sarjoughian, 2019), Saveh (Nouri et al, 2018), Nodoushan (Shahsavari Alavijeh, Rashidnejad‐Omran, Toksoy‐Köksal, Xu, & Ghalamghash, 2019), Sarduiyeh (Nazarinia et al, 2020), Takht (SE UDMA; Pang, Fazlnia, Ji, Jamei, & Jafari, 2020), Raviz‐Shanabad (Salehi Nejad, Ahmadipour, Moinzadeh, Moradian, & Santos, 2021), Deh‐Siahan, Bande‐Bagh, and Baghe‐Khoshk Sharghi (Dargahi, Arvin, Pan, & Babaei, 2010), Kal‐e‐Kafi (Ahmadian et al, 2009), Khalkhab‐Neshveh (Rezaei‐Kahkhaei, Galindo, Pankhurst, & Esmaeily, 2011), Kajan (Golkaram et al, 2016), and Kahak (Moradi, Ghorbani, Jiang, & Christiansen, 2021). Mid‐Miocene Group II districts (<~16 Ma) with SiO 2 content more than 60 wt%, including Niyasar (Honarmand et al, 2014) and Takht (NW UDMA; Haghighi Bardineh, Zarei Sahamieh, Zamanian, & Ahmadi Khalaji, 2018), dominantly manifest lower Al 2 O 3 (≤16 wt%) and Nd isotopes with continental crust signature.…”

Section: Discussionmentioning

confidence: 99%

Petrogenesis of Miocene igneous rocks in the Tafresh area (central Urumieh‐Dokhtar magmatic arc, Iran): Insights into mantle sources and geodynamic processes

Babazadeh

Raeisi

D’Antonio³

et al. 2022

Geological Journal

View full text Add to dashboard Cite

Cenozoic tectono‐magmatism in Iran is widely considered to be related to subduction of the Neo‐Tethys Ocean. We employed whole‐rock and mineral geochemistry and isotopic data of intrusive rocks from Tafresh, central Urumieh‐Dokhtar magmatic arc, to evaluate the role of the mantle in magmatism, to assess the timing of emplacement, and to interpret the tectonic setting. Rock compositions range from gabbro or gabbro‐diorite (plagioclase + pyroxene ± olivine), to diorite (plagioclase + amphibole ± pyroxene), to granodiorite (quartz + plagioclase + K‐feldspar + amphibole + biotite), exhibiting high‐alumina calc‐alkaline affinity. Major oxide and trace element variations vary systematically from less to more evolved rocks suggesting a major role for fractional crystallization processes. Zircon LA‐ICP‐MS U–Pb ages of major rock types are in the range of 24–19 Ma, whereas those of gabbroic dikes are ~17.5 Ma. ԐNd values range between −1.8 and 3.7, and (87Sr/86Sr)i is narrowly restricted to 0.705–0.706, suggesting a common mantle source. The enrichment in light rare earth element (REE) enrichment and flat heavy REE patterns couple depletion of Nb–Ta–Ti indicate that subducting oceanic crust had interacted with the overlying mantle wedge. High‐alumina, mid‐Mg# Tafresh plutonic rocks formed from hydrous melts from which Ca‐pyroxene and magnetite crystallized earlier than plagioclase, whereas late‐crystallizing zircon nucleated while magma traversed through lithospheric mantle and Cadomian crust. Modelling of isotope and incompatible‐element patterns suggests the contribution of no more than ~5% molten sediment or other crustal components in Tafresh magma, at a developmental stage before most plagioclase and amphibole had crystallized. The Miocene Tafresh plutons originated during the final stages of subduction, before the collision between the Arabian and Eurasian plates.

show abstract

Section: Discussionmentioning

confidence: 99%

Petrogenesis of Miocene igneous rocks in the Tafresh area (central Urumieh‐Dokhtar magmatic arc, Iran): Insights into mantle sources and geodynamic processes

Babazadeh

Raeisi

D’Antonio³

et al. 2022

Geological Journal

View full text Add to dashboard Cite

show abstract

Simulation of present and future land subsidence in the Rafsanjan plain, Iran, due to groundwater overexploitation using numerical modeling and InSAR data analysis

et al. 2023

View full text Add to dashboard Cite

In the Rafsanjan plain, Iran, the excessive use of groundwater for pistachio irrigation since the 1960s has led to a severe water level decline as well as land subsidence. In this study, the advantages of InSAR analyses and groundwater flow modeling are combined to improve the understanding of the subsurface processes causing groundwater-related land subsidence in several areas of the region. For this purpose, a calibration scheme for the numerical groundwater model was developed, which simultaneously accounts for hydraulic aquifer parameters and sediment mechanical properties of land subsidence and thus considers the impact of water release from aquifer compaction. Simulation results of past subsidence are calibrated with satellite-based InSAR data and further compared with leveling measurements. Modeling results show that land subsidence in this area occurs predominantly in areas with fine-grained sediments and is therefore only partly dependent on groundwater level decline. During the modeling period from 1960 to 2020, subsidence rates of up to 21 cm year−1 are simulated. Due to the almost solely inelastic compaction of the aquifer, this has already led to an irreversible aquifer storage capacity loss of 8.8 km3. Simulation results of future development scenarios indicate that although further land subsidence cannot be avoided, subsidence rates and the associated aquifer storage capacity loss can be reduced by up to 50 and 36%, respectively, by 2050 through the implementation of improved irrigation management for the pistachio orchards.

show abstract

Geochronology, petrogenesis, and tectonic setting of amphibolitic rocks from the Tutak metamorphic Complex, Sanandaj-Sirjan Zone, Iran

Moradian,

Shabanian,

Davoudian

et al. 2023

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

Geochemistry and petrogenesis of Raviz-Shanabad intrusions (SE UDMB): an evidence for Late Eocene magmatism

Cited by 4 publications

References 50 publications

Petrogenesis of Miocene igneous rocks in the Tafresh area (central Urumieh‐Dokhtar magmatic arc, Iran): Insights into mantle sources and geodynamic processes

Petrogenesis of Miocene igneous rocks in the Tafresh area (central Urumieh‐Dokhtar magmatic arc, Iran): Insights into mantle sources and geodynamic processes

Simulation of present and future land subsidence in the Rafsanjan plain, Iran, due to groundwater overexploitation using numerical modeling and InSAR data analysis

Geochronology, petrogenesis, and tectonic setting of amphibolitic rocks from the Tutak metamorphic Complex, Sanandaj-Sirjan Zone, Iran

Contact Info

Product

Resources

About