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Ice-rafting
| Глоссарий геологических терминов |
The transportation of rock fragments of all sizes on or within icebergs, ice floes, or other forms of floating ice. compare - dropstone, erratic. gg
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Transportation, английский
- Транспортировка, перевозка
- Also conveyance, carriage
- Транспортирование; перевозки
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Impact crater, английский
A) [anthropogenic] a generally circular or elliptical depression formed by hypervelocity impact of an experimental projectile or ordinance into earthy or rock material. compare - caldera, crater, meteorite crater. sw; b) (not recommended - use meteorite crater) a generally circular crater formed by the impact of an interplanetary body (projectile) on a planetary surface. gg
Ice-pushed ridge, английский
An asymmetrical ridge of local, essentially non-glacial material (such as deformed bedrock, with some drift incorporated in it) that has been pressed up by the shearing action of an advancing glacier. it is typically 10 - 60 m high, about 150 - 300 m wide, and as much as 5 km long. examples are common on the great plains where such ridges occur on the sides of escarpments formed of relatively incompetent rocks that face the direction from which the ice moved. gg
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