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Geology] (not preferred
| Глоссарий геологических терминов |
Refer to sandy outwash plain) a small outwash plain composed chiefly of sand deposited by meltwater streams flowing from a glacier. gg
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Geomorphic component, английский
- Flat plains: - a group of fundamental, three dimensional pieces or areas of flat plains. in descending elevational order, the geomorphic components of a simple, flat plain (e.g. lake plain, low coastal plain, etc.) are the rise [a broad, slightly elevated area with comparatively greater gradients (e.g., 1-3% slopes], and the talf [a comparatively level (e.g., 0-1% slopes), laterally extensive, non-fluvial area], and part 629 - glossary 629-35 (430-vi-nssh, 2008) dip [a slight depression that is not a permanent water body nor part of an integrated drainage network].
- Hills: - a set of fundamental, three-dimensional areas and positions that geomorphically define a hill or ridge. in descending topographic order, the geomorphic components are interfluve (stable summit area) ; crest (unstable summit -converged shoulders); three geometric slope areas defined by plan shape and its influence on overland flow and throughflow: these are: head slope (convergent flow), side slope (parallel flow), and nose slope (divergent flow); free face (rock outcrop); and base slope (concave accretion area (colluvium / slope alluvium) at hill bottom). sw
- Mountains: - a group of fundamental, three dimensional pieces or areas of mountains. in descending elevational order, the geomorphic components of a simple mountain are the mountaintop (roughly analogous to the crest or summit); mountainflank (the long slope along the sides of mountains which can be further subdivided into three portions based on the relative slope location: upper third-, middle third-, or lower third mountainflank); free face (rock outcrop); and the mountainbase (colluvium / slope alluvium apron at the bottom of the mountain). sw
- Terraces, stepped landforms: - a group of fundamental, three dimensional pieces or areas of terraces, flood-plain steps, and other stepped landforms (e.g. stacked lava flow units). in descending elevational order, the geomorphic components are the tread (the level to gently sloping, laterally extensive top of a terrace, flood-plain step, or other stepped landform); and the riser (the comparatively short escarpment forming the more steeply sloping edge that descends to another level or a channel). sw
- A fundamental, three dimensional piece or area of a geomorphic setting (i.e., hills, mountains, terraces, flat plains) that has unique and prevailing kinetic energy dynamics and sediment transport conditions which result in their characteristic form, patterns of sedimentation and soil development. sw
Frost shattering, английский
The mechanical disintegration, splitting, or breakup of a rock or soil caused by the pressure exerted by freezing water in cracks or pores, or along bedding planes. sometimes referred to as congelifraction. gg
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