Dataset

Paleomagnetic data from Kope-Dagh, Northeast Iran

Mattei, Massimo; Visconti, Andrea Leonardo; Cifelli, Francesca; Nozaem, Reza; Winkler, Aldo; Sagnotti, Leonardo;

2023-09 || GFZ Data Services

This dataset includes paleomagnetic data from 70 sampling sites, collected in northeastern Iran during two campaigns carried out in August 2016 and September 2017 (Table 1). The data are supplement to Mattei et al. (2019). Data allow to reconstruct the rotation history of the outer margin of the Eurasia-Arabia collision area represented by the Ala-Dagh, Binalud and Kopeh-Dagh mountain belts. The sampled formations are red beds units from the Lower Cretaceous Shurijeh Fm. and from the Middle-Upper Miocene Upper Red Fm (URF). Paleomagnetic results from all the sampled areas show a homogeneous amount of clockwise (CW) rotations measured in the above-mentioned Formations. These paleomagnetic results suggest that the oroclinal bending process that caused the curvature of Alborz mountain belt in north Iran after the Middle-Late Miocene, also extended to the Ala-Dagh, Binalud and Kopeh-Dagh mountain belts, at the north-eastern border of the Arabia-Eurasia deforming zone. This pattern of vertical axis rotations is inconsistent with the present-day kinematics of the northern Iranian blocks as described by seismicity and GPS data, suggesting that the tectonic processes responsible for the bending of northern Iran mountain chains are no longer active and that the westward motion of the South Caspian basin, and therefore the initiation of opposite strike-slip motion along the Ashk-Abad and Shahrud faults, occurred very recently (∼2My ago).

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Corresponding MSL vocabulary keywords

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paleomagnetism

MSL enriched sub domains	paleomagnetism
Source	http://doi.org/10.5880/fidgeo.2022.046
Source publisher	GFZ Data Services
DOI	10.5880/fidgeo.2022.046
License	CC BY 4.0
Authors	Mattei, Massimo 0000-0001-7800-8764 Department of Science, Roma Tre University, Rome, Italy Visconti, Andrea Leonardo Department of Science, Roma Tre University, Rome, Italy Cifelli, Francesca 0000-0002-6337-8786 Department of Science, Roma Tre University, Rome, Italy Nozaem, Reza School of Geology, College of Science, University of Tehran, Tehran, Iran Winkler, Aldo 0000-0002-0653-0059 National Institute of Geophysics and Volcanology, Via di Vigna Murata 605, 00143 Rome, Italy Sagnotti, Leonardo 0000-0003-3944-201X National Institute of Geophysics and Volcanology, Via di Vigna Murata 605, 00143 Rome, Italy
References	Fisher, R. (1953). Dispersion on a Sphere. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 217(1130), 295–305. https://doi.org/10.1098/rspa.1953.0064 10.1098/rspa.1953.0064 Cites Kirschvink, J. L. (1980). The least-squares line and plane and the analysis of palaeomagnetic data. Geophysical Journal International, 62(3), 699–718. https://doi.org/10.1111/j.1365-246x.1980.tb02601.x 10.1111/j.1365-246X.1980.tb02601.x Cites Cites Mattei, M., Visconti, A. L., Cifelli, F., Nozaem, R., Winkler, A., & Sagnotti, L. (2019). Clockwise paleomagnetic rotations in northeastern Iran: Major implications on recent geodynamic evolution of outer sectors of the Arabia-Eurasia collision zone. Gondwana Research, 71, 194–209. https://doi.org/10.1016/j.gr.2019.01.018 10.1016/j.gr.2019.01.018 IsSupplementTo
Contact	Mattei, Massimo Department of Science, Roma Tre University, Rome, Italy massimo.mattei@uniroma3.it
Citation	Mattei, M., Visconti, A. L., Cifelli, F., Nozaem, R., Winkler, A., & Sagnotti, L. (2023). Paleomagnetic data from Kope-Dagh, Northeast Iran [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2022.046
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