CRUSTAL STUDY IN THE WEST OF IRAN BASED ON TRAVEL TIME CURVES OF LOCAL EARHQUAKES

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RIAZIRAD Z.; JAVAN DOULOUEI GH.

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Journal: Journal of Agricultural Science and Sustainable Production Year:2009 | Volume:3 | Issue:1 Page(s): 563-590

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Title

CRUSTAL STUDY IN THE WEST OF IRAN BASED ON TRAVEL TIME CURVES OF LOCAL EARHQUAKES

Author(s)

RIAZIRAD Z. | JAVAN DOULOUEI GH. | Issue Writer Certificate

Keywords

CRUSTAL STRUCTURE

EARTHQUAKE

WEST OF IRAN

TRAVEL TIME CURVE

Abstract

This study explores crustal velocity structure in the WEST OF IRAN. Wealth of data from recorded local EARTHQUAKEs creates an opportunity to image crust and upper mantle in the region and then these data use for the joint inversion method in this region. We proposed to study velocity and interface structure of the crust and upper mantle in the WEST OF IRAN using local EARTHQUAKEs recorded in the Kermansha short-period seismic stations at the Institute of Geophysics, University of Tehran (IGUT), and the Sanandaj broad-band seismic station at the International Institute of EARTHQUAKE Engineering and Seismology (IIEES), since 2004. The EARTHQUAKEs and stations should be directed for the TRAVEL TIME CURVE analysis. Recorded EARTHQUAKEs were classified along the five separate profiles and 278 EARTHQUAKEs (mb³3) separate in data (3000) and epicenter distance is 10-750 km, that corresponding travel-time curves were analyzed. Moreover, crustal velocity structure is determined based on the TRAVEL TIME CURVE of local event. So, algorithm program was written and arrival times of body waves compare with forward modeling code was written, in order to refine final model. This processing based on EARTHQUAKEs with mb³4 and the error RMS is 0.01-0.26 sec. Compressional wave velocity of the crust is 6.23±0.07 km/s and the upper mantel (Moho) is 8.08±0.08 km/s. since, shear waves velocity for the crust, found to be 3.64±0.06 km/s and the upper mantel (Moho) is 4.70±0.01 km/s. Depths for Conrad and Moho discontinuities were obtained 11±2 km and 43±3 km respectively, which well correlate with the results of the previous gravimetric crustal studies .

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APA: Copy

RIAZIRAD, Z., & JAVAN DOULOUEI, GH.. (2009). CRUSTAL STUDY IN THE WEST OF IRAN BASED ON TRAVEL TIME CURVES OF LOCAL EARHQUAKES. JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE), 3(1), 563-590. SID. https://sid.ir/paper/571849/en

Vancouver: Copy

RIAZIRAD Z., JAVAN DOULOUEI GH.. CRUSTAL STUDY IN THE WEST OF IRAN BASED ON TRAVEL TIME CURVES OF LOCAL EARHQUAKES. JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE)[Internet]. 2009;3(1):563-590. Available from: https://sid.ir/paper/571849/en

IEEE: Copy

Z. RIAZIRAD, and GH. JAVAN DOULOUEI, “CRUSTAL STUDY IN THE WEST OF IRAN BASED ON TRAVEL TIME CURVES OF LOCAL EARHQUAKES,” JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCE), vol. 3, no. 1, pp. 563–590, 2009, [Online]. Available: https://sid.ir/paper/571849/en

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