Constant Slip Rate on the Doruneh Strike?Slip Fault, Iran, Averaged Over Late Pleistocene, Holocene, and Decadal Timescales

Varying estimates of both present-day strain accumulation and long-term slip rate on the Doruneh left-lateral strike-slip fault, NE Iran, have led to suggestions that it exhibits large along-strike and/or temporal changes in activity. In this study, we make compare measured using geodesy geomorphology, spanning time periods ranging from decadal 100 ka. To image strain, process 7 years (2003–2010) data six ENVISAT tracks covering with interferograms produced for 400-km-long strips long-wavelength signals associated interseismic across locked fault. Our analysis shows less than 4 mm/yr—and likely only 1–3 mm/yr—of accumulates Using high-resolution optical satellite imagery, reconstructions displacement alluvial fans whose surfaces cross four separate river catchments. We determine ages these infra-red-stimulated luminescence dating combined U-series pedogenic carbonates. The vary age ?10– kyr, a regression line fitted yields 2.5 ± 0.3 mm/yr. conclude within uncertainty our measurements, has remained constant over last ?100 ka is representative at present-day. measure consistent E-W fault accommodating N-S right-lateral faulting by “bookshelf” faulting, clockwise rotation about vertical axis.