quaternary sediments have occupied most of the agricultural and natural resources of urmia region. recognition of physicochemical and mineralogical properties of these soils is essential to optimum and stable use of these lands. in this study, eight soils profiles excavated on quaternary sediments of urmia region were investigated. the results showed that little thickness and evolution of studi...

During waning flood flows in gravel-bed streams, finegrained bedload sediment (sand and fine gravel) is commonly winnowed from zones of high shear stress, such as riffles, and deposited in pools, where it mantles an underlying coarse layer. As sediment load increases, more fine sediment becomes available to fill pools. The volume of fine sediment in pools can be measured by probing with a metal...

We present a study to estimate the large-scale landscape history of continental margin, by establishing source-to-sink volume balance between eroding onshore areas and offshore basins. Assuming erosion as primary process for sediment production, we strive constrain numerical model evolution that balances volumes eroded materials from continent deposited in corresponding basins, with ratio impos...