مخاطرات محیط طبیعی (Sep 2022)
Determining the slip rate of Rafsanjan fault using the age of the samples taken from that fault and comparing the results of the two software analysts and R
Abstract
Fault slip rate is the amount of displacement of one wall relative to another fault wall over a period of time. The duration of this shift can be measured using the luminescence dating method. To determine the age by luminescence dating method, two dose parameters equivalent to normal dose and annual dose are needed. By dividing the dose equivalent to the natural dose by the annual dose rate, the age value is determined per structural unit. To determine the dose equivalent to the normal dose, a protocol for measuring luminescence signals (data) and a program for analyzing the data are required. Data analysis was performed using R software. Because the usual international program to do this is analytics software. Data were also analyzed with analyst software. The results of these two softwares and their effect in determining the slip rate of Rafsanjan fault were compared. The amount of displacement measured on the Rafsanjan fault is 48 ± 4 meters. The age was estimated to be 97-118thousand years using R software and 101-129 thousand years by analyst software. Slip rates were obtained by R software and analysts, 0.41 to 0.53 and 0.36 to 0.48 mm / year, respectively. Slip rates were obtained by R software and analysts, 0.41 to 0.53 and 0.36 to 0.48 mm / year, respectively.
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