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Г зандр
| Глоссарий по геологии, тектонике, геофизике и минералогии |
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Sand, английский
- Sable
- The more or less fine debris of rocks, consisting of small, loose grains, often of quartz
- Sandstorm
- Песок; песчаный
- Песок
- A loose granular material that results from the disintegration of rocks, consisting of particles smaller than gravel but coarser than silt. sand can be described in terms of grain size, color, composition, morphology (angularity and shape) and surface texture. hence the term means different things to different people. to the seafarer, it is essentially a mineral substance deposited along the shores of bodies of water and in river beds, usually containing shells, fossils, corals, algae, volcanic material, and the remains of marine plants and animals.
- Sometimes used by drillers as a name for porous, friable sandstone or for an oil-, water-, or gas-bearing formation.
- As recommended by the asoe in their proceedings, volume 84, no. sm4, october 1958, rounded or semirounded particles of rock that will pass a no. 4. and be retained on a no. 200, u.s. standard sieve, hence having average dimensions ranging from a maximum of less than 4.7 mm. (about three-six teenths of an inch) to a minimum of 0.05 mm. (approximately .0029 inch).
- Soil particles 0.06 to 2 mm in size.
- A granular material resulting from the disintegration of rock. foundry sands are mainly silica. “bank sands” are found in sedimentary deposits and contain less than 5% clay. “dune” sand occurs in wind blown deposits near large bodies of water and is very high in silica content. “moulding sand” contains more than 5% clay; usually between 10 and 20%. “silica sand” is a granular material containing at least 95% silica and often more than 99%. “sand core” is nearly pure silica. “miscellaneous sand” includes zircon, olivine, calcium carbonate, lava, and titanium minerals.
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Зандр, русский
Зандрарт, русский
(sandrart) иоахим фон (1606-1688) , немецкий художник и писатель. обширный труд "немецкая академия" (2 т., 1675-79) содержит ценные сведения о художниках и коллекциях 17 в.
Зандры, русский
- (исл . sandr, от sand - песок), равнины, сформировавшиеся у окраин древних покровных ледников потоками талых вод; сложены песками и галечниками. развиты на восточно-европейской равнине (припятское, мещерское и другие полесья).
- Или зандровые равнины
Зандры долинные, русский
Верхние террасовые поверхности в ледниковых долинах, образовавшиеся в завершающую фазу стока ледниковых вод, когда эти воды, после образования водораздельных зандров, стали размывать понижения в рельефе и началось формирование сети эрозионных долин. сложены флювиогляциальными песками, распростран
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Га петра, русский
Г ас, русский
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