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L12_Fluvial_processes_web

L12_Fluvial_processes_web - Previously Creation of Initial...

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3/12/09 1 Previously… Creation of Initial Landforms Plate Tectonics & Volcanism Today- Sequential Landforms: Fluvial Processes & Landforms Drainage Basins Stream Order Streamflow Characteristics Stream Gradation Fluvial Landforms (erosional Vs depositional) Fluvial? Fluvial refers to stream-related processes Fluvial systems have characteristic processes and produce predictable landforms Fluvial landforms produced by two basic things: erosive action of flowing water and deposition of stream-transported materials Drainage Networks Drainage divides area on map outlined by a divide = drainage basin ( catchment or watershed ) all water within this basin will drain down to a stream then flow out of the basin basins big & small single or multiple streams
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3/12/09 2 Bifurcation Ratio : the ratio of the number of streams of any order to the number of streams of the next highest order Drainage density : the ratio of the total
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L12_Fluvial_processes_web - Previously Creation of Initial...

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