شارک

عنوان URL للمقالة


رقم المقالة : IJES-1610-1056 (R1) زيارة : 185 الصفحة: 11 - 19

نوع المخطوط: ابحاث

Variation of Lithosphere-Asthenosphere boundary beneath Iran by using S Receiver function

الموضوعات :

Fataneh Taghizadeh Farahmand 1 , Narges Afsari 2

1 - Department of Physics, Qom Branch, Islamic Azad University, Qom, Iran.
2 - Department of Civil Engineering, Nowshahr Branch, Islamic Azad University, Nowshahr, Iran

تاريخ الإرسال : 22 الأحد , محرم, 1438 تاريخ التأكيد : 06 السبت , ذو القعدة, 1438 تاريخ الإصدار : 15 الأحد , رجب, 1439

الکلمات المفتاحية: Iran, S Receiver Function, Lithosphere-Asthenosphere Boundary, Teleseismic Waves,

ملخص المقالة :

The current geological and tectonic setting of Iran is due to the ongoing convergence between the Arabian and Eurasian Plates, which resulted in the formation of the Iranian plateau, mountain building, extensive deformation and seismicity. The Iranian plateau is characterized by various domains including the continental collision and the oceanic plate seduction. Based on S receiver functions are provided a high resolution image of lithosphere beneath Iran.The current geological and tectonic setting of Iran is due to the ongoing convergence between the Arabian and Eurasian Plates, which resulted in the formation of the Iranian plateau, mountain building, extensive deformation and seismicity. The Iranian plateau is characterized by various domains including the continental collision and the oceanic plate seduction. Based on S receiver functions are provided a high resolution image of lithosphere beneath Iran. In the present work, we used data from teleseismic events (at epicentral distances between 60°-85° with magnitude over 5.7 (Mb)) recorded from 1995 to 2011 at 53 national permanent short period stations which are located in the different geological zones of Iran. The Sp phase conversion arriving at times ranging between 8.6 and 13.0 s delay time. In order to enhance the conversions and reduce the error of the depth determination, the S receiver functions stacked in bins. Arrival times of Sp phases were converted into depth domain using the IASP91 reference velocity model. A relatively shallow LAB at about 80-90 km depth was observed beneath the whole plateau with some exceptions. A low velocity zone was found at about 100 km beneath the Zagros fold and thrust belt and reaching 130 km beneath the Sanandaj-Sirjan Zone, whereas other tectonic zones are recognized by a thin lithosphere of about 80-90 km. This technique can introduce an error up to 10 km in the LAB depth determination.

المصادر:


  1. Abbassi A, Nasrabadi A, Tatar M, Yaminifard F, Abbassi M, Hatzfeld D, Priestley K (2010) Crustal velocity structure in the southern edge of the Central Alborz (Iran), Journal of Geodynamics 49: 68–78.
    2.
  2. Afsari N, Sodoudi F, Taghizadeh-Farahmand F, Ghassemi MR (2011) Crustal structure of Northwest Zagros (Kermanshah) and Central Iran (Yazd and Isfahan) using teleseismic Ps converted phases, Journal of  Seismology 15: 341–353.
    3.
  3. Afsari N, Taghizadeh-Farahmand F, Gheitanchi M R, Solaimani A (2012) Moho depth variations in the Central Zagros (Shiraz region) using Ps converted phases, Journal of  Earth and Space Physics 38 (3): 1-13.
    4.
  4. Allen M, Jackson J, Walker R (2004) Late Cenozoic reorganization of the Arabia-Eurasia collision and comparison of short-term and long-term deformation rates, Tectonics 23, TC2008.
    5.
  5. Angus DA, Wilson DC, Sandvol E, Ni JF (2006) Lithospheric structure of the Arabian and Eurasian collision zone in eastern Turkey from S-wave receiver functions, Geophysical Journal International 166 (3): 1335–1346.
    6.
  6. Asudeh I (1982) Seismic structure of Iran from surface and body wave data, Geophysical Journal International 71:715-730.
    7.
  7. Bayramnejad E (2008) Determination of crustal velocity structure in NW Iran using 3-D inverse modeling of local earthquake data, PhD thesis, Tehran University.
    8.
  8. Dehgani GA, Makris J (1984) The Gravity field and crustal structure of Iran, N. Jb. Geol. Palaeont. Abh168: 215-229.
    9.
  9. Faber S, Müller G (1980) Sp phases from the transition zone between the upper and lower mantle, Bulletin of the Seismological Society of America 70: 487-508.
    10.
  10. Farra V, Vinnik L (2000) Upper mantle stratification by P and S receiver functions, Geophysical Journal International 141: 699-712.
    11.
  11. Geissler WH, Sodoudi F, Kind R (2010) Thickness of the central and eastern European lithosphere as seen by S receiver functions, Geophysical Journal International 181: 604-634.
    12.
  12. Hatzfeld D, MTatar M, Priestley K, Ghafory-Ashtyany M (2003) Seismological constraints on the crustal structure beneath the Zagros mountain belt (Iran), Geophysical Journal International 155: 403–410.
    13.
  13. Hollingsworth J, Fattahi M, Walker R, Talebian M, Bahroudi A, Bolourchi M J, Jackson J, Copley A (2010) Oroclinal bending, distributed thrust and strike-slip faulting, and the accommodation of Arabia–Eurasia convergence in NE Iran since the Oligocene, Geophysical Journal International 181 (3): 1214-1246.
    14.
  14. Javan Doloei G, Roberts R (2003) Crust and uppermost mantle structure of Tehran region from analysis of teleseismic P-waveform receiver functions, Tectonophysics, 364: 115-133.
    15.
  15. Javan Doloei G, Ghafoury Ashtiany M (2004) Crustal structure of Mashhad Area from Time Domain Receiver Functions analysis of teleseismic Earthquake, Research Bulletin of Seismology and Earthquake Engineering 27: 30-38.
    16.
  16. Jim´enez-Munt I, Fern`andez M, Saura E, Verg´es J, Garcia-Castellanos D (2012) 3-D lithospheric structure and regional/residual Bouguer anomalies in the Arabia–Eurasia collision (Iran), Geophysical Journal International 190: 1311–1324.
    17.
  17. Kennett BLN, Engdah ER (1991) Travel times for global earthquake location and phase identification, Geophysical Journal International 105, 429-465.
    18.
  18. Keshvari F, Shomali ZH, Tatar M, Kaviani A (2011) Upper-mantle S-velocity structure across the Zagros collision zone resolved by nonlinear teleseismic tomography, Journal of  Seismology 15: 329-339.
    19.
  19. Kumar P, Kind R, Hanka W, Wylegalla K, Reigber Ch, Yuan X, Wolbern I, Schwintzer P, Fleming K, Dahl-Jensen T, Larsen T B, Schweitzer J, Priestley K, Gudmundsson O, Wolf D (2005a) The lithosphere asthenosphere boundary in the North-West Atlantic region, Earth and Planetary Science Letters 236: 249–257.
    20.
  20. Kumar P, Kind R, Kosarev G (2005b) The lithosphere-asthenosphere boundary in the Tien Shan-Karakoram region from S receiver functions: evidence for continental subduction, Geophysical Research Letters 32 (7): 1-4.
    21.
  21. Kumar P, Yuan X, Kind R, Ni J (2006) Imaging the colliding Indian and Asian continental lithospheric plates beneath Tibet, Journal of Geophysical Research: Solid Earth 111 (B6): 1-11.
    22.
  22. Kumar P, Yuan X, Kumar MR, Kind R, Li X, Chadha R K (2007) The rapid drift of the Indian tectonic plate, Nature 449: 894–897.
    23.
  23. Laske G (2004) Map of the crustal thickness for Eurasia with 1◦×1◦ resolution, from: http// mahi.uscd.edu/ Gabi/rem.html.
    24.
  24. Li X, Kind R, Yuan X, Wolbern I, Hanka W (2004) Rejuvention of the Lithosphere by the Hawaiian plume, Nature  427: 827-829.
    25.
  25. Mangino S, Priestley K (1998) The crustal structure of the southern Caspian region, Geophysical Journal International 133: 630–648.
    26.
  26. McKenzie D, Priestley K (2008) The influence of lithospheric thickness variations on continental evolution, Lithos 102, 1-11.
    27.
  27. Mohammadi N, Sodoudi F,  Mohammadi E, Sadidkhouy A (2013) New constraints on lithospheric thickness of the Iranian Plateau using converted waves, Journal of Seismology 17 (3): 883-895.
    28.
  28. Molinaro M, Zeyen H, Laurencin X (2005) Lithospheric structure beneath the southeastern Zagros Mountains, Iran: recent slab break-off?, TerraNova 17: 1-6.
    29.
  29. Motaghi, K, Tatar M, Priestley K (2012) Crustal thickness variation across the northeast Iran continental collision zone from teleseismic converted waves. Journal of seismology 16: 253–260.
    30.
  30. Motavalli-Anbaran SH, Zeyen H, Brunet MF, Ebrahimzadeh Ardestani V (2011) Crustal and lithospheric structure of the Alborz Mountains Iran, and surrounding areas from integrated geophysical modelling, Tectonic 30 (5): 1-16.
    31.
  31. Nasrabadi A, Tatar M, Kaviani A (2012) Crustal Structure of Iran from Joint Inversion of Receiver Function and Phase Velocity Dispersion of Rayleigh Wave, Geosciences 21 (82): 83-94.
    32.
  32. Paul A, Hatzfeld D, Kaviani A, Tatar M, Pequegnat C (2010) Seismic imaging of the lithospheric structure of the Zagros mountain belt (Iran), Geological Society, London, Special Publications 330: 5-18.
    33.
  33. Paul A, Kaviani A, Hatzfeld D, Vegne J,  Mokhtari M (2006) Seismological evidence for crustal-scale thrusting in the Zagros mountain belt (Iran), Geophysical Journal International 166: 227–237.
    34.
  34. Priestley K, McKenzie D, Barron J, Tatar M, Debayle E (2012) The Zagros core: Deformation of the continental lithospheric mantle. Geochemistry, Geophysics, Geosystems 13 (11): 1-21.
    35.
  35. Radjaee A H, Rham D, Mokhtari M, Tatar M, Priestley K, Hatzfeld D (2010) Variation of Moho depth in the Central part of Alborz Mountains, North of Iran, Geophysical Journal International 181: 173–184.
    36.
  36. Rajab-biki F, Tagizadeh-Farahmand F, Afsari N, Gheitanchi MR (2011) Variations of the Moho depth and Vp/Vs ratio beneath East Iran (Birjand) using P receiver function method. Iranian Journal of Geophysics 5(1): 124-138.
    37.
  37. Shad Manaman N, Shomali H (2010) Upper mantle S-velocity structure and Moho depth variations across Zagros belt, Arabian-Eurasian plate boundary, Physics of the Earth and Planetary Interiors 180: 92-103.
    38.
  38. Shomali Z H, Keshvari F, Hassanzadeh J, Mirzaei N (2011) thospheric structure beneath the Zagros collision zone resolved by non-linear teleseismic tomography, Geophysical Journal International 187: 394-406.
    39.
  39. Snyder DB, Barazangi M (1986) Deep crustal structure and flexure of the Arabian plate beneath the Zagros collisional mountain belt as inferred from gravity observations, Tectonics 5: 361-373.
    40.
  40. Sodoudi F, Kind R, Priestly K, Hanka W, Wylegalla K, Stavrakakis G, Vafidis A, Harjes HP, Bohnhoff M (2006a) Lithospheric structure of the Aegean obtained from P and S receiver functions, Journal of Geophysical Research: Solid Earth 111 (B12): 12307-12330.
    41.
  41. Sodoudi F, Yuan X, Liu Q, Kind R, Chen J (2006b) Lithospheric thickness beneath the Dabie Shan, central eastern China from S receiver functions, Geophysical Journal International 166 (3): 1363-1367.
    42.
  42. Sodoudi F, Yuan X, Kind R, Heit B, Sadidkhouy A (2009) Evidence for a missing crustal root and a thin lithosphere beneath the Central Alborz by receiver function studies, Geophysical Journal International 177(2): 733–742.
    43.
  43. Sodoudi F, Yuan X, Asch A, Kind R (2011) High resolution image of the geometry and thickness of the subducting Nazca lithosphere beneath northern Chile, Journal of Geophysical Research: Solid Earth 116 (B4): 1-11.  
    44.
  44. Sodoudi1 F, Brüstle A, Meier T, Kind R, Friederich W, EGELADOS working group (2015) Receiver function images of the Hellenic subduction zone and comparison to microseismicity, Solid Earth 6: 135-151.
    45.
  45. Taghizadeh-Farahmand F, Sodoudi F, Afsari N, Ghassemi M R (2010) Lithospheric structure of NW Iran from P and S receiver functions, Journal of Seismology 14: 823–836.
    46.
  46. Taghizadeh-Farahmand F, Sodoudi F, Afsari N, Mohammadi N (2013) A detailed receiver function images of the lithosphere beneath the Kopeh-Dagh (Northeast Iran), Journal of Seismology 17(4): 1207-1221.
    47.
  47. Taghizadeh-Farahmand F, Afsari N, Sodoudi F (2015) Crustal thickness of Iran inferred from converted waves, Pure and Applied Geophysics journal 172(2): 309–331.
    48.
  48. Wittlinger G, Farra V, Vergne J (2004) Lithospheric and upper mantle stratification beneath Tibet: New insights from Sp conversions, Geophysical Research Letters 31:  
    49.
  49. Yamini-Fard F, Hatzfeld D, Tatar M, Mokhtari M (2006) Microearthquake seismicity at the intersection between the Kazerun fault and the Main Recent Fault (Zagros, Iran), Geophysical Journal International 166 (1): 186-196.
    50.

سند

Sanad is a platform for managing Azad University publications

الروابط

المراكز ذات الصلة

دعامة

الصفحات الرسمية

حقوق هذا الموقع الإلكتروني مملوكة لنظام SANAD Press Management. © 1442-1446

الصفحة الرئيسية| دخول| معلومات عنا| اتصل بنا|
[English] [فارسی] [en] [fa]