نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
    Abstact   In this research has tried which the area with 20 Km2 width (in Khoran Strait) has studied with respect to shallow seismic, sedimentology and bedforms investigation.  Bedforms in this area are composed of simple large flood-dominated dunes with wavelengths between 10 and 100 meters, composite medium to very large flood-dominated dunes with wavelengths between 5 to >100 meters, simple- and composite large to very large ebb dominated dunes with wavelengths between 30 to >100 meters and simple medium to very large ebb dominated dunes. Maximum wavelength observed in the area belongs to composite large to very large, 10 meters high ebb- dominated dunes with a wavelength of 300 meters, which superimposed on their stoss side smaller bedforms with wavelengths of 20 to 30 meters . In lower flow regime, flow and sediment transport accelerates from trough to crest and migrating regime of dunes are downstream. Based on granulometry and morphoscopic studies, sediments of bedforms are mainly composed of coarse fractions (ranging from medium sand to granule). Their composition is bioclastic accompanied by clastic fractions (quartz, rock fragment and mica).    Â
کلیدواژهها [English]
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