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The fluvial landforms of streams, stream beds, and s have various landforms. ==Classification== :There are five generic classifications: *Consequent streams are streams whose course is a direct consequence of the original slope of the surface〔(【引用サイトリンク】 consequent stream - Definitions from Dictionary.com )〕〔(【引用サイトリンク】 Stream Erosion and Landscape Development )〕 upon which it developed, i.e., streams that follow slope of the land over which they originally formed. *Subsequent streams are streams whose course has been determined by selective headward erosion along weak strata. These streams have generally developed after the original stream. Subsequent streams developed independently of the original relief of the land and generally follow paths determined by the weak rock belts.〔(【引用サイトリンク】 Stream Erosion and Landscape Development )〕 *Resequent streams are streams whose course follows the original relief, but at a lower level than the original slope (e.g., flows down a course determined by the underlying strata in the same direction). These streams develop later and are generally a tributary to a subsequent stream. *Obsequent streams are streams flowing in the opposite direction of the consequent drainage. *Insequent streams have an almost random drainage often forming dendritic patterns. These are typically tributaries and have developed by a headward erosion on a horizontally stratified belt or on homogeneous rocks. These streams follow courses that apparently were not controlled by the original slope of the surface, its structure or the type of rock. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fluvial landforms of streams」の詳細全文を読む スポンサード リンク
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