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Boulder field
| Глоссарий геологических терминов |
(not recommended) use block stream. compare - block field.
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Boulder, английский
- A naturally rounded rock fragment larger than 10 in. (25 cm) in diameter; used for crude walls and foundations, generally in mortar.
- In a general sense, any large, usually rounded, fragment of rock lying on the surface or embedded in soil or overburden or in glacial water-deposited materials. in a strict sense, as recommended in the proceedings of the asce, vol. 84, no. sm4, october 1958, a rock fragment usually rounded by weathering or abrasion, having an average dimension of 12 inches or more.
- Валун, валунный камень (диаметром свыше 250 мм)
- Per astm d653, a rock fragment, usually rounded by weathering or abrasion, with a dimension of 12 in. (305 mm) or more.
Boulder (var, английский
Boulder area trails coalition, английский
Boulder blasting, английский
Boulder buster, английский
- A heavy, pyramidical- or conical-point steel tool, which may be attached to the bottom end of a string of drill rods and used to break, by impact, a boulder encountered in a borehole. also called boulder cracker.
- An explosive used to break rock fragments by blockholing or mudcapping methods.
Boulder clay, английский
- The stiff, hard, and usually unstratified clay of glacial origin in which boulders are scattered at random.
- Local british term for till; considered inaccurate because neither
Boulder clay (loam), английский
Boulder cracker, английский
Boulder ditch, английский
A french drain.
Boulder flat, английский
Boulder garden, английский
Boulder gravel, английский
Boulder loam, английский
Boulder motion, английский
Boulder quarry, английский
Boulder stone, английский
Boulder wall, английский
A wall constructed of boulders set in mortar.
Boulderet, английский
Bouldering, английский
- The practice of climbing on large boulders. typically this is close to the ground, so protection takes the form of crash pads and spotting instead of belay ropes.
- Paving with cobblestones.
Boulders, английский
- Stones worn and rounded by the attrition of the waves of the sea: the word, on the authority of hunter, was considered a technical term in the fourteenth century, as appears in a warrant of john of gaunt for the repair of pontefract castle—“de peres, appeles buldres, a n`re dit chastel come nous semblerez resonables pur la defense de meisme.”
- Rock fragments greater than 200mm in size.
- Boulders are heavy, rough stones commonly used in landscaping.
Recommended, английский
- Refer to oxbow) an abandoned meander, commonly filled in by deposition and vegetation, but still discernable. gg
- The collection title for recommendation items that can be either based on personalization algorithm or not covered by any personalization data.
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Bowl [gilgai], английский
A cup-or trough-shaped subsurface feature centered under and surrounding the micro-low of a gilgai, commonly 3-5 m across and 1.5-3 m thick, containing numerous slickensides (oblique slip / shear faces) within it and bounded at its base by master slickensides. a bowl contains turbated material produced in soils with substantial smectitic clay (e.g. vertisols). bowl morphology is distinct from that in adjacent microhighs (chimney) and underlying horizons: substratum morphology is not preserved within the bowl.
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
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