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Flood-plain landforms
| Глоссарий геологических терминов |
A variety of constructional and erosional features produced by stream channel migration and flooding, e.g., backswamp, braided stream, flood-plain splay, meander, meander belt, meander scroll, oxbow lake, and natural levee. hp
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Flood-plain playa, английский
A landform consisting of very low gradient, broad, barren, axial-stream channel segments in an intermontane basin. it floods broadly and shallowly and is veneered with barren fine-textured sediment that crusts. commonly, a flood-plain playa is segmented by transverse, narrow bands of vegetation, and it may alternate with ordinary narrow or braided channel segments. ffp part 629 - glossary 629-32 (430-vi-nssh, 2008)
Flood-plain splay, английский
A fan-shaped deposit or other outspread deposit formed where an overloaded stream breaks through a levee (natural or artificial) and deposits its material (often coarse-grained) on the flood plain.
Flood-plain step, английский
An essentially flat, terrace-like alluvial surface within a valley that is frequently covered by flood water from the present stream (e.g., below the 100 year flood level); any approximately horizontal surface still actively modified by fluvial scour and/or deposition (i.e., cut and fill and/or scour and fill processes). may occur individually or as a series of steps. compare - stream terrace. sw & rr
Landform, английский
Landform elevation model, английский
Landform system, английский
Constructional, английский
A конструктивный; структурный meaning constructivism n лит. конструктивизм
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Flood-plain playa, английский
A landform consisting of very low gradient, broad, barren, axial-stream channel segments in an intermontane basin. it floods broadly and shallowly and is veneered with barren fine-textured sediment that crusts. commonly, a flood-plain playa is segmented by transverse, narrow bands of vegetation, and it may alternate with ordinary narrow or braided channel segments. ffp part 629 - glossary 629-32 (430-vi-nssh, 2008)
Fissure vent, английский
An opening in earth’s surface of a volcanic conduit in the form of a crack or fissure rather than a localized crater; a roughly linear crack or area along which lava, generally mafic and of low viscosity, wells up to the surface, usually without any explosive activity. the results can be an extensive lava plateau (e.g. columbia river plateau). compare - crater [volcanic]. sw & gg
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