- Formation or deposition of layers, as of rock or sediments.
- The condition of being stratified.
- A layered configuration.
stratification
Dictionary:
strat·i·fi·ca·tion (străt'ə-fĭ-kā'shən)  |
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| Britannica Concise Encyclopedia: stratification |
For more information on stratification, visit Britannica.com.
| Architecture: stratification |
1. The separation of overwet or overvibrated concrete into horizontal layers with increasingly lighter material toward the top; water, laitance, mortar, and coarse aggregate tend to occupy successively lower positions in that order.
2. A layered structure in concrete resulting from the placement of successive batches that differ in appearance.
| Archaeology Dictionary: stratification |
1. [Ge]. The differentiation of the population on a prestige scale of kinship units in such a way that the distinctions among such units, or classes within them, become hereditary to an important degree.
2. [Th]. See stratigraphy.
| Columbia Encyclopedia: stratification |
stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocks. Changes between strata are interpreted as the result of fluctuations in the intensity and persistence of the depositional agent, e.g., currents, wind, or waves, or in changes in the source of the sediment. Changes in the mineral composition between two adjacent layers will often result in two layers of distinctly different color. Changes in the texture of the sedimentary particles from one layer to another (as from sand to gravel) result in the development of prominent stratification. In shales, stratification can be seen by the tendency of the rock to split into thin flakes, caused by the parallel arrangement of the tiny clay mineral fragments. Initially, most sediments are deposited with essentially horizontal stratification, although the layers may later be tilted or folded by internal earth forces. Persistent, regular stratification is a reflection of the persistence and regularity of the depositional agent. Agents such as broad ocean or atmospheric currents tend to produce widespread and uniform strata, whereas currents that operate over limited areas and show evidence of turbulence, such as stream currents or irregular wind patterns, form irregular strata.
| Science Dictionary: stratification |
The process by which materials form or are deposited in layers, as in sedimentary rocks and some igneous rocks.
| Veterinary Dictionary: stratification |
1. arrangement in layers.
2. in statistical terms the division of a population into subpopulations on the basis of specified criteria such as age, breed, parity. See stratified random sample.
| Wikipedia: Stratification |
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Look up stratification in Wiktionary, the free dictionary. |
Stratification is the building up of layers, and can have several meanings
- Social stratification, is the dividing of a society into levels based on wealth or power.
- Stratification (archeology) is the formation of layers (strata) in which objects are found.
- Stratification of rock layers (strata) is part of the geologic field of Stratigraphy.
- Stratification (botany), where seeds are pretreated to simulate winter conditions so that germination may occur.
- See stratified sampling for the use of stratification in survey sampling. The term "stratified sampling" also refers a method of variance reduction in Monte Carlo methods.
- In logic, stratification is a layering of predicate symbols to guarantee unique interpretations and to avoid paradoxical definitions like Russell's paradox.
- In mathematics, Stratification has a separate meaning as applied to manifolds, and singularity theory, of a decomposition into pieces with specified relationships on fitting together.
- In music stratification is a layering of musical texture or the independent operating of more than one parameter simultaneously (see auditory stream).
- In meteorology, atmospheric stratification is the division of the atmosphere into distinct layers, each with specific properties such as temperature or humidity.
- In histology, stratified epithelium refers to epithelium that consists of two or more layers of epithelial cells, in contrast to simple epithelium, which only has one layer.
- Genetic stratification
- Stratification (water) can occur due to gradients in salinity or temperature, e.g. lake stratification.
- Stratification of air — unmixed air within a confined space that is separated into thermal layers due to temperature variations.
- A way an internal combustion operates, when direct injection is used to burn fuel just at the sparkplug and keep in the rest of the cylinder plain air. This reduces fuel consumption significantly.
See also
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved. Read more |
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| Architecture. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Archaeology Dictionary. The Concise Oxford Dictionary of Archaeology. Copyright © 2002, 2003 by Oxford University Press. All rights reserved. Read more |
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| Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/ Read more |
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| Science Dictionary. The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Stratification". Read more |
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Mentioned in
- phyllofacies (geology)
- primary stratification (geology)
- slavery (in archaeology)
- ethnicity
- racial stratification
- social stratum
- bedded vein (geology)
- cross-bedding (geology)
- natural-cleft
- rift
- stratified
- neopallium
- interstratification
- baroclinic model (meteorology)
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