The New Encyclopædia Britannica: The new Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 725
... valley floor moves down relative to the surrounding margins , or , conversely , the margins move up relative to the floor . Differences in the elevations of valley floors and surrounding mountains or plateaus range from only several ...
... valley floor moves down relative to the surrounding margins , or , conversely , the margins move up relative to the floor . Differences in the elevations of valley floors and surrounding mountains or plateaus range from only several ...
Page 726
... valley is the deep wide valley itself , the ranges and valleys are of comparable importance in basin and range topography . Pull - apart basins . Some tectonic valleys are rectangular or rhomb - shaped basins , bounded by as many as ...
... valley is the deep wide valley itself , the ranges and valleys are of comparable importance in basin and range topography . Pull - apart basins . Some tectonic valleys are rectangular or rhomb - shaped basins , bounded by as many as ...
Page 730
... Valley morphology can be described in numerous ways . A useful measure is drainage density Dd , which relates the length of valleys ( or streams ) L to the area A in which they occur : Dd = ΣΕ A ( 7 ) In many applications , A is defined ...
... Valley morphology can be described in numerous ways . A useful measure is drainage density Dd , which relates the length of valleys ( or streams ) L to the area A in which they occur : Dd = ΣΕ A ( 7 ) In many applications , A is defined ...
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