Climate Change Data Portal
| DOI | 10.1016/j.tecto.2020.228588 |
| A new tectonic map of the Iranian plateau based on aeromagnetic identification of magmatic arcs and ophiolite belts | |
| Teknik V.; Thybo H.; Artemieva I.M.; Ghods A. | |
| 发表日期 | 2020 |
| ISSN | 00401951 |
| 卷号 | 792 |
| 英文摘要 | The Iranian plateau is one of the most complex geodynamic settings within the Alpine-Himalayan belt. The Paleo-Tethys and Neo-Tethys ocean subduction is responsible for the formation of several magmatic arcs and sedimentary basins within the plateau. These zones mostly are separated by thrust faults related to paleo-suture zones, which are highlighted by ophiolites. Sediment cover and overprint of a different magmatic phase from late Triassic to the Quaternary impede identification of some magmatic arcs and ophiolite belts. We track the known magmatic arcs, such as the Urmia-Dokhtar Magmatic Arc (UDMA), and unknown, sediment covered magmatic arcs by aeromagnetic data. We present a new map of average susceptibility calculated by the radially averaged power spectrum method. High average susceptibility values indicate the presence of a number of lineaments that correlate with known occurrences of Magmatic-Ophiolite Arcs (MOA), and low average susceptibility coincides with known sedimentary basins like Zagros, Makran, Kopeh-Dagh, and Tabas. In analogy to Zagros, low average susceptibility values indicate sedimentary basins to the south of the Darouneh fault and in the northern part of the Lut, Tabas and Yazd blocks. We interpret the Tabas basin as a pull-apart or back-arc basin. We identify hitherto unknown parallel MOAs in eastern Iran and the SE part of UDMA which both indicate steeply dipping (>60° dip) paleo-subduction zones. In contrast, we interpret shallow subduction (<20° dip) of Neo-Tethys in the NW part of UDMA as well as in the Sabzevar-Kavir MOA. © 2020 Elsevier B.V. |
| 关键词 | Aeromagnetic dataIranian plateauMagmatic arcsOphiolitesSedimentary basinsSusceptibilityTectonics |
| 英文关键词 | Birds; Geodynamics; Sedimentology; Settling tanks; Aeromagnetic data; Averaged power spectrums; Back-arc basin; Geodynamic setting; Late Triassic; Magmatic arcs; Sedimentary basin; Subduction zones; Faulting; aeromagnetic survey; geological mapping; magnetic susceptibility; ophiolite; sedimentary basin; subduction; tectonic setting; Tethys; volcanic arc; Iranian Plateau |
| 语种 | 英语 |
| 来源期刊 | Tectonophysics
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/207888 |
| 作者单位 | Eurasia Institute of Earth Sciences, Istanbul Technical University, Istanbul, Turkey; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Institute for Advanced Studies in Basic Sciences, Zanjan, Iran; Centre for Earth Evolution and Dynamics, University of Oslo, Oslo, Norway; Department of Geophysics, Stanford University, Stanford, CA, United States; Section of Marine Dynamics, GEOMAR Helmholtz Center for Ocean Research, Kiel, Germany |
| 推荐引用方式 GB/T 7714 | Teknik V.,Thybo H.,Artemieva I.M.,et al. A new tectonic map of the Iranian plateau based on aeromagnetic identification of magmatic arcs and ophiolite belts[J],2020,792. |
| APA | Teknik V.,Thybo H.,Artemieva I.M.,&Ghods A..(2020).A new tectonic map of the Iranian plateau based on aeromagnetic identification of magmatic arcs and ophiolite belts.Tectonophysics,792. |
| MLA | Teknik V.,et al."A new tectonic map of the Iranian plateau based on aeromagnetic identification of magmatic arcs and ophiolite belts".Tectonophysics 792(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
