Calculation of deposits diffusion coefficient with application of fault scarps in north of Kerman

Authors

1 Assistant Prf. Department Of Geology,Islamic Azad University Of Zarand

2 Assistant Prof Of Geophysic Technology, Kerman; University Of technology For Graduate Studies, Mahan,Iran

Abstract

      One of the simplest and important ways to completion of earthquake catalogue for a region is determination of temporal and special previous seismic events.This subject is important, because we can find locations with seismic potential or locations with absence of seismic activity in nowadays. Most important method for recognition of this regions is use of degradation fault scarps which caused by co-seismic events. Using desirability location, field works and site analyses, it is possible to determine the date of fracture or earthquake events. There are two methods for study of fault scarps: 1: Diffusion modeling.2: Degradation fault scarp modeling. In the mentioned models, diffusion coefficient (D.c) is very important, because this criterion is related to factors such as: sediment type, precipitation rate, direction and intensity of wind, topography and et. D.c changes from a region to another because the above factors change in each region For calculation of D.c in zarand region, we use the 1977 and 2005 Babtangal and Dahuiye-Hotkan earthquakes fault scarps in 7 stations. The results show (3.5. 10-3) m2/ky for D.c.This result is belonging to sandy deposit with spatter of gravel and clay. Low rate of D.c.for this factor in Zarand region show low precipitation rate and erosion in this region. Furthermore locality and poor cementation between deposit grains cause the low rate for D.c.In these studies, the bigger fault scarps show real and closer rate of D.c than small fault scarps.
 

Keywords

References

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