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bedrock

 
Dictionary: bed·rock   (bĕd'rŏk') pronunciation
n.
  1. The solid rock that underlies loose material, such as soil, sand, clay, or gravel.
    1. The very basis; the foundation: Ownership of land is the bedrock of democracy.
    2. The lowest point: personal finances that were at bedrock.

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Geography Dictionary: bedrock
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The unweathered rock which underlies the soil and regolith or which may be exposed at the land surface.

Architecture: bedrock
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The hard, solid rock at the earth’s surface or underlying surface soil; can be utilized as a firm foundation for a building.



[Ge]

Undisturbed natural substrate below any archaeological deposits, accumulative overburden such as alluvium or colluvium, or established soil profile. The bedrock is not necessarily solid rock: gravels, sands, glacial tills, and many other kinds of relatively soft materials are, in archaeological terms, bedrock.

Wikipedia: Bedrock
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Soil with broken rock fragments overlying bedrock, Sandside Bay, Caithness.

In stratigraphy, bedrock is the native consolidated rock underlying the surface of a terrestrial planet, usually the Earth. Above the bedrock is usually an area of broken and weathered unconsolidated rock in the basal subsoil. The top of the bedrock is known as rockhead and identifying this, via excavations, drilling or geophysical methods, is an important task in most civil engineering projects. Superficial deposits (also known as drift) can be extremely thick such that the bedrock lies hundreds[1] or even thousands[2] of metres below the surface.

A solid geologic map of an area will usually show bands of differing rock type; i.e., rock that would be exposed at the surface if all soil or other superficial deposits were removed.[citation needed] The different rock strata or layers that are indicated may be a result of either nonparallel (sloping) surface erosion at the edges of flat strata or normal surface erosion of tilted strata that has removed the upper portions of higher layers.[citation needed]

References


Translations: Bedrock
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Dansk (Danish)
n. - grundfjeld

Nederlands (Dutch)
basis, laagste punt, vast gesteente, betrouwbaar, vertrouwd

Français (French)
n. - base, (Géol) soubassement, (fig) base

Deutsch (German)
n. - Basis, Fundament, Felssohle

Ελληνική (Greek)
n. - βραχώδες υπόστρωμα, (μτφ.) γερό θεμέλιο, βασικές αρχές

Italiano (Italian)
rocca, fondamento, base rocciosa

Português (Portuguese)
n. - leito (m) de rocha firme (Min.), alicerce (m)

Русский (Russian)
коренная порода, почва залежи, твердый фундамент

Español (Spanish)
n. - roca de fondo, roca firme, base, fondo de la cuestión

Svenska (Swedish)
n. - berggrund, hörnsten, grundval

中文(简体)(Chinese (Simplified))
岩床, 基础, 根底

中文(繁體)(Chinese (Traditional))
n. - 岩床, 基礎, 根底

한국어 (Korean)
n. - 기반암, 최하점, 기초

日本語 (Japanese)
n. - 基盤, 床岩, 根底

العربيه (Arabic)
‏(الاسم) صخر, أساس, متين, طبقه صخريه‏

עברית (Hebrew)
n. - ‮סלע-אדמה, יסוד‬


 
 

 

Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Geography Dictionary. A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved.  Read more
Architecture. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved.  Read more
Archaeology Dictionary. The Concise Oxford Dictionary of Archaeology. Copyright © 2002, 2003 by Oxford University Press. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Bedrock" Read more
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