Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics
We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the st...
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Gespeichert in:
| Autor*in: |
Jentzer, Michael [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Rechteinformationen: |
Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. |
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| Übergeordnetes Werk: |
Enthalten in: Tectonics - Washington, DC : Union, 1982, 36(2017), 2, Seite 321-339 |
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| Übergeordnetes Werk: |
volume:36 ; year:2017 ; number:2 ; pages:321-339 |
| Links: |
|---|
| DOI / URN: |
10.1002/2016TC004275 |
|---|
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| 245 | 1 | 0 | |a Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics |
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| 520 | |a We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene | ||
| 540 | |a Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. | ||
| 650 | 4 | |a Sistan | |
| 650 | 4 | |a Iran | |
| 650 | 4 | |a paleostress | |
| 650 | 4 | |a faults | |
| 650 | 4 | |a Neogene | |
| 650 | 4 | |a Plate tectonics | |
| 650 | 4 | |a Seismology | |
| 700 | 1 | |a Fournier, Marc |4 oth | |
| 700 | 1 | |a Agard, Philippe |4 oth | |
| 700 | 1 | |a Omrani, Jafar |4 oth | |
| 700 | 1 | |a Khatib, Mohammad Mahdi |4 oth | |
| 700 | 1 | |a Whitechurch, Hubert |4 oth | |
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10.1002/2016TC004275 doi PQ20170721 (DE-627)OLC1992831289 (DE-599)GBVOLC1992831289 (PRQ)p1903-3493f342d3d986ef460600ab5861a4d84fbe6a4bd24395be4052ed7f2c3908e70 (KEY)0112887620170000036000200321neogenetopresentpaleostressfieldineasterniransista DE-627 ger DE-627 rakwb eng 550 DNB Jentzer, Michael verfasserin aut Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. Sistan Iran paleostress faults Neogene Plate tectonics Seismology Fournier, Marc oth Agard, Philippe oth Omrani, Jafar oth Khatib, Mohammad Mahdi oth Whitechurch, Hubert oth Enthalten in Tectonics Washington, DC : Union, 1982 36(2017), 2, Seite 321-339 (DE-627)130545341 (DE-600)780264-X (DE-576)016105346 0278-7407 nnns volume:36 year:2017 number:2 pages:321-339 http://dx.doi.org/10.1002/2016TC004275 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_2014 GBV_ILN_2027 AR 36 2017 2 321-339 |
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10.1002/2016TC004275 doi PQ20170721 (DE-627)OLC1992831289 (DE-599)GBVOLC1992831289 (PRQ)p1903-3493f342d3d986ef460600ab5861a4d84fbe6a4bd24395be4052ed7f2c3908e70 (KEY)0112887620170000036000200321neogenetopresentpaleostressfieldineasterniransista DE-627 ger DE-627 rakwb eng 550 DNB Jentzer, Michael verfasserin aut Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. Sistan Iran paleostress faults Neogene Plate tectonics Seismology Fournier, Marc oth Agard, Philippe oth Omrani, Jafar oth Khatib, Mohammad Mahdi oth Whitechurch, Hubert oth Enthalten in Tectonics Washington, DC : Union, 1982 36(2017), 2, Seite 321-339 (DE-627)130545341 (DE-600)780264-X (DE-576)016105346 0278-7407 nnns volume:36 year:2017 number:2 pages:321-339 http://dx.doi.org/10.1002/2016TC004275 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_2014 GBV_ILN_2027 AR 36 2017 2 321-339 |
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10.1002/2016TC004275 doi PQ20170721 (DE-627)OLC1992831289 (DE-599)GBVOLC1992831289 (PRQ)p1903-3493f342d3d986ef460600ab5861a4d84fbe6a4bd24395be4052ed7f2c3908e70 (KEY)0112887620170000036000200321neogenetopresentpaleostressfieldineasterniransista DE-627 ger DE-627 rakwb eng 550 DNB Jentzer, Michael verfasserin aut Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. Sistan Iran paleostress faults Neogene Plate tectonics Seismology Fournier, Marc oth Agard, Philippe oth Omrani, Jafar oth Khatib, Mohammad Mahdi oth Whitechurch, Hubert oth Enthalten in Tectonics Washington, DC : Union, 1982 36(2017), 2, Seite 321-339 (DE-627)130545341 (DE-600)780264-X (DE-576)016105346 0278-7407 nnns volume:36 year:2017 number:2 pages:321-339 http://dx.doi.org/10.1002/2016TC004275 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_2014 GBV_ILN_2027 AR 36 2017 2 321-339 |
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10.1002/2016TC004275 doi PQ20170721 (DE-627)OLC1992831289 (DE-599)GBVOLC1992831289 (PRQ)p1903-3493f342d3d986ef460600ab5861a4d84fbe6a4bd24395be4052ed7f2c3908e70 (KEY)0112887620170000036000200321neogenetopresentpaleostressfieldineasterniransista DE-627 ger DE-627 rakwb eng 550 DNB Jentzer, Michael verfasserin aut Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. Sistan Iran paleostress faults Neogene Plate tectonics Seismology Fournier, Marc oth Agard, Philippe oth Omrani, Jafar oth Khatib, Mohammad Mahdi oth Whitechurch, Hubert oth Enthalten in Tectonics Washington, DC : Union, 1982 36(2017), 2, Seite 321-339 (DE-627)130545341 (DE-600)780264-X (DE-576)016105346 0278-7407 nnns volume:36 year:2017 number:2 pages:321-339 http://dx.doi.org/10.1002/2016TC004275 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_2014 GBV_ILN_2027 AR 36 2017 2 321-339 |
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10.1002/2016TC004275 doi PQ20170721 (DE-627)OLC1992831289 (DE-599)GBVOLC1992831289 (PRQ)p1903-3493f342d3d986ef460600ab5861a4d84fbe6a4bd24395be4052ed7f2c3908e70 (KEY)0112887620170000036000200321neogenetopresentpaleostressfieldineasterniransista DE-627 ger DE-627 rakwb eng 550 DNB Jentzer, Michael verfasserin aut Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene Nutzungsrecht: © 2017. American Geophysical Union. All Rights Reserved. Sistan Iran paleostress faults Neogene Plate tectonics Seismology Fournier, Marc oth Agard, Philippe oth Omrani, Jafar oth Khatib, Mohammad Mahdi oth Whitechurch, Hubert oth Enthalten in Tectonics Washington, DC : Union, 1982 36(2017), 2, Seite 321-339 (DE-627)130545341 (DE-600)780264-X (DE-576)016105346 0278-7407 nnns volume:36 year:2017 number:2 pages:321-339 http://dx.doi.org/10.1002/2016TC004275 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_2014 GBV_ILN_2027 AR 36 2017 2 321-339 |
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Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. 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Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics |
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neogene to present paleostress field in eastern iran (sistan belt) and implications for regional geodynamics |
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Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics |
| abstract |
We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene |
| abstractGer |
We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene |
| abstract_unstemmed |
We conducted a stress field analysis of the northern part of the ~700 km long north‐south trending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of a branch of the Neo‐Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stress regime of Eastern Iran during the late Cenozoic, with three successive directions of compression ( σ 1 ), from 90°N during the middle ‐ late Miocene to 60°N during the late Pliocene and 25°N during the Plio‐Quaternary, thereby evidencing a counterclockwise rotation of about 65° of σ 1 in less than 10 Myr. As shown by compilation of paleostress data, Plio‐Quaternary direction of compression in Sistan coincides with the one recorded across the whole of Iran and with present‐day Arabia‐Eurasia convergence direction. This result suggests effective stress transfer from the Zagros collision and that Sistan is at present mechanically coupled and shortened along with the rest of the Iranian crust/lithosphere. By contrast, Miocene compression is markedly different in the Iranian hinterland (e.g., Sistan, Central Iran, and Kopet Dagh) and in the Zagros orogen. This could tentatively be related to the end of Sistan collision and/or to the imprint of active deformation occurring further to the east. The intermediate late Pliocene compression (i.e., 60°N) could correspond to the progressive reorientation of the stress regime, as Sistan gets mechanically coupled to the Zagros collision. Stress evolution in the Sistan (Eastern Iran) during the Neogene Stress transfer throughout Iran during the Neogene Zagros collision and stress sources in Iran during the Neogene |
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| title_short |
Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implications for regional geodynamics |
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http://dx.doi.org/10.1002/2016TC004275 http://onlinelibrary.wiley.com/doi/10.1002/2016TC004275/abstract https://search.proquest.com/docview/1876837761 |
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Fournier, Marc Agard, Philippe Omrani, Jafar Khatib, Mohammad Mahdi Whitechurch, Hubert |
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