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Bolson
Глоссарий геологических терминов |
(colloquial: western usa.) a term applied to an internally drained (closed) intermontane basin in arid regions where drainages from adjacent mountains converge toward a central depression. bolsons are often tectonically formed depressions. according to peterson, a bolson can include alluvial flat, alluvial plain, beach plain, barrier beach, lake plain, sand sheet, dune, and playa landforms. the piedmont slope above a bolson includes erosional (pediments) and older depositional surfaces (fans) that adjoin the mountain front. a semi-bolson is an externally drained (open) bolson. synonym - intermontane basin. gg and ffp.
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Больсон, русский
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Colloquial, английский
A разговорный language, speech, standard
Intermontane, английский
Depression, английский
- See low.
- The difference between dry and wet bulb temperatures. it is a measure of humidity.
- A severe economic slump.
- Депрессия, область пониженного давления; понижение, опускание
- 1. a mental condition that prevents someone from carrying out the normal activities of life in the usual way 2. a hollow on the surface of a part of the body
- Depresión
- [1] meteorology: an area of low barometric pressure—a bad weather system in which winds circulate clockwise in the southern and anticlockwise in the northern hemisphere (see coriolis effect). [2] physical geography: a depressed or sunken area lower than the surrounding surface. [3] astronomy. the angular distance of a celestial body below the horizon. [4] economics: a period during which business, employment, and stock-market values decline severely or remain at a very low level of activity. [5] general: the state of being depressed—sadness; gloom; dejection.
- Котловина, впадина; понижение
- Any relatively sunken part of the earth`s surface; especially a low-lying area surrounded by higher ground. a closed depression has no natural outlet for surface drainage (e.g. a sinkhole). an open depression has a natural outlet for surface drainage. compare - closed depression, open depression. gg
- Subsidence hollow. small subsidence depressions may be synony- mous with
- Депрессия
Depositional, английский
Externally, английский
Same as anterior nares
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Bomb [volcanic], английский
A pyroclast > 64 mm in at least one dimension that was ejected while still viscous and solidified into it’s rounded form in flight. compare - block, cinder, lapilli, tephra. gg
Blue rock [volcanic] - (colloquial, английский
Hawaii) the very dense (e.g. 2.75 g/cc), extremely hard and massive, nominally vesicular lava that commonly forms the inner core of an `a`a lava flow. sw
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