INVESTIGATION OF THE POTENTIAL OF OSL FOR DATING QANATS AND MEASURING THE SLIP-RATE OF THE DASHT-EBAYAZ EARTHQUAKE FAULT

INVESTIGATION OF THE POTENTIAL OF OSL FOR DATING QANATS AND MEASURING THE SLIP-RATE OF THE DASHT-EBAYAZ EARTHQUAKE FAULT

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Part of #INVESTIGATION OF THE POTENTIAL OF OSL FOR DATING QANATS AND MEASURING THE SLIP-RATE OF THE DASHT-EBAYAZ EARTHQUAKE FAULT# :

Publishing year : 2011

Conference : 6th International Conference on Seismology and Earthquake Engineering

Number of pages : 8

Abstract: Ancient Persians overcame the climatic change by constructing elaborate tunnel systems called qanat for extracting groundwater in dry mountain basins, which allowed farmers to succeed when access to surface water was limited or impossible. Although some archaeologists believe that the Romans had invented the qanat system, written records and recent excavations suggest that ancient Iran was its actual birthplace. In most of the seismic regions, earthquake faults are located at the boundary of the plains and mountains where streams or qanats provide water and Fertile soil for settlement and agriculture. In some parts of Iran, such as Dasht-e-Bayaz, the line of wells of the qanat systems has been displaced by faulting. If we can calculate the age of these qanat wells and measure the amount of offset, we can estimate the slip rate of the fault, which is a major factor in the Earthquake hazard assessment. The existing constraints on the age of ancient Qanats in Iran are typically attributed to archeological investigations of nearby habitation sites. We present for the first time the results of OSL dating from spoil deposits associated with Dasht-e-Bayaz qanats. We therefore explore the possibility of dating qanat directly using the new method of OSL