نتایج جستجو برای: alluvial river
تعداد نتایج: 86183 فیلتر نتایج به سال:
In the Mediterranean area, several alluvial coastal plains, developed after Holocene transgression, are affected by subsidence. The Volturno alluvial-coastal plain, along eastern Tyrrhenian Sea (southern Italy) is characterized subsidence rates determined through InSAR data analysis and ranging between 0 <?20 mm/year in an area of about 750 kmq across River. Inside this pattern shows sites w...
Introduction The territory of central Iran is now affected by the hot and dry climate. But, several evidences, such as the extreme erosion of running waters, huge alluvial fans, wide alluvial terraces, and flood deposits indicate colder and wetter climate in the territory (Ghahroodi Tali, 2011: 3). The rivers belong to the most important parts of the sedimentary basin. In fact, the rivers are...
We use the Be concentration in alluvial sand and gravel to document hillslope exposure history and trace the reduction in grain size of river alluvium in the Clearwater River basin, western Washington State. Clearwater tributary basins Wilson Creek (WC, 6 km) and East Fork Miller Creek (EFMC, 12 km) were each sampled in headwater and downstream sites for Be in alluvial sand (0.25–0.50 mm) and g...
This volume presents a series of papers on the geomorphology, sedimentology and dynamics of alluvial fans, selected from those presented at the 'Alluvial Fans' Conference held in Sorbas, SE Spain in June 2003. The conference was sponsored primarily by the British Geomorphological Research Group and the British Sedimentological Research Group, both organizations affiliated to the Geological Soci...
The dynamics of alluvial deposits in floodplains forms islands and sandbanks. Deposits frequently accumulate at the river margins and on islands with consequent side growths. One of these sandbanks which started to form in 1952 annexed an area of 12.4ha to the Porto Rico island (5315’W and 2245’S). At present a forest fragment of approximately 2.0 ha exists in this place. The structural analysi...
The Mississippi River Delta has been continuously losing land since the 1930s due to several factors, chief of which is the reduced sediment supply. A few recent studies have estimated individual components of short-term sediment transport, i.e., bedload and suspended load, separately for some locations along the Lowermost Mississippi River (LmMR, commonly considered as the last 500-km reach of...
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