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stratification
strat·i·fi·ca·tion S0797200 (străt′ə-fĭ-kā′shən)n.1. a. Formation or deposition of layers, as of rock or sediments.b. The condition of being stratified.2. A layered configuration.stratification (ˌstrætɪfɪˈkeɪʃən) n1. (Geological Science) the arrangement of sedimentary rocks in distinct layers (strata), each layer representing the sediment deposited over a specific period2. the act of stratifying or state of being stratified3. (Sociology) sociol See social stratification[C17 (in the obsolete sense: the act of depositing in layers) and C18 (in the current senses): from New Latin strātificātiōnem, from stratificāre to stratify] ˌstratifiˈcational adjstrat•i•fi•ca•tion (ˌstræt ə fɪˈkeɪ ʃən)
n. 1. the act or process of stratifying. 2. a stratified state or appearance. 3. the hierarchal division of society according to rank, caste, or class. 4. a stratified geological formation. [1610–20; < Medieval Latin strātificātiō. See strati-, -fication] strat·i·fi·ca·tion (străt′ə-fĭ-kā′shən) Formation or deposition of layers, as of rock or sediments.Thesaurus| Noun | 1. |  stratification - the act or process or arranging persons into classes or social strataclassification, compartmentalisation, compartmentalization, assortment, categorisation, categorization - the act of distributing things into classes or categories of the same type | | 2. | stratification - the condition of being arranged in social strata or classes within a groupsocial stratificationcondition - a mode of being or form of existence of a person or thing; "the human condition" | | 3. | stratification - forming or depositing in layersfoliation - (geology) the arrangement of leaflike layers in a rockgeologic process, geological process - (geology) a natural process whereby geological features are modified | | 4. | stratification - a layered configurationshape, configuration, conformation, contour, form - any spatial attributes (especially as defined by outline); "he could barely make out their shapes" | | 5. | stratification - the placing of seeds in damp sand or sawdust or peat moss in order to preserve them or promote germinationlocating, positioning, emplacement, location, placement, position - the act of putting something in a certain place |
TranslationsLagerungStratifikationstratificazioneStratification
stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocksrock,
aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes—igneous, sedimentary, and metamorphic.
..... Click the link for more information. . 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.stratification see SOCIAL STRATIFICATION.Stratification the disposal of sedimentary rocks in the earth’s crust in strata or layers. Initial stratification is ordinarily almost horizontal. As a result of tectonic movements of the earth’s crust, stratification may become inclined, folded, or broken by faults.
Stratification in agriculture, a presowing method of accelerating the germination of seeds. Stratification is used mainly for difficult-to-sprout seeds of woody species (fruit, forest, and ornamental species) and certain medicinal plants. The seeds are stored in layers in a moist well-aerated medium (sand, sawdust, crumbled peat, moss) and kept at low temperatures (I° to 5°C). Three to four parts substrate are used to one part seeds. The seeds are stratified for one to several months.
Stratification (also layering), the vertical division of plant communities, or phytocoenoses, into strata, that is, into rather precisely delimited levels of concentration of the active organs of the plants. Aboveground stratification is the result of the selection of species capable of growing compatibly by using different levels of the aboveground environment. For example, some plants prosper under conditions of decreased light intensity caused by shading from taller plants. Thus, stratification ensures more complete use of the aboveground environment by components of phytocoenoses. Stratification is most marked in forests of the temperate zone, where the following strata are distinguished: arboreal (sometimes two arboreal strata), shrub, herbaceous (or herbaceous-shrub), and moss (or lichen). Strata may be formed by one or two or more species, including those belonging to different ecobiomorphs, for example, the arboreal stratum of coniferous and deciduous trees in mixed forests. A stratum is defined when the composition of plants within it is quite closed. Each stratum is characterized by special conditions of the environment, for example, specific light and temperature conditions. Epiphytes and lianas do not belong to any stratum. Young and stunted individuals of tall plant species are usually assigned to the stratum in which their active organs are located. In some types of phytocoenoses (most herbaceous ones, certain types of tropical rain forests and broad-leaved forests) stratification is absent or weakly expressed; absent or weak stratification has strong implications for the structure of phytocoenoses. Strata are formed early in the establishment of phytocoenoses. They subsequently represent a relatively stable formation (for example, the spruce stratum in spruce forests), or they are subject to changes in the course of the vegetative season (for example, strata formed of herbs or deciduous trees) or sometimes even from year to year (herbaceous polydominant strata). Depending on the depth of rooting, subterranean stratification is sometimes discerned in phytocoenoses. One stratum is readily distinguishable. Only rarely can a second stratum be discerned, for example, on solonetzes, in arid regions, or in places where groundwaters are close to the surface. The second stratum is an aggregation of absorptive roots in a soil moistened by groundwater. T. A. RABOTNOV stratification[‚strad·ə·fə′kā·shən] (geology) An arrangement or deposition of sedimentary material in layers, or of sedimentary rock in strata. (hydrology) The arrangement of a body of water, as a lake, into two or more horizontal layers of differing characteristics, especially densities. The formation of layers in a mass of snow, ice, or firn. stratification1. 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.stratification
stratification [strat″ĭ-fĭ-ka´shun] arrangement in layers.strat·i·fi·ca·tion (strat'i-fi-kā'shŭn), The process or result of separating a sample into subsamples according to specified criteria such as age or occupational groups. [L. stratum, layer, + facio, to make] stratification The grouping of subjects/patients based on key prognostic factors measured at baseline.strat·i·fi·ca·tion (strat'i-fi-kā'shŭn) The process or result of separating a sample into subsamples according to specified criteria, such as age or occupational group. [L. stratum, layer, + facio, to make]stratification a process in which certain seeds are subjected to low temperatures for a period of time, in order for GERMINATION to take place. Natural stratification occurs when seeds are shed in autumn and become covered with soil, leaves, etc. during the winter. The process can be reproduced artificially by alternating layers of seeds with layers of moistened substrate such as sphagnum moss and storing at a low temperature.stratification
Related to stratification: gender stratificationSynonyms for stratificationnoun the act or process or arranging persons into classes or social strataRelated Words- classification
- compartmentalisation
- compartmentalization
- assortment
- categorisation
- categorization
noun the condition of being arranged in social strata or classes within a groupSynonymsRelated Wordsnoun forming or depositing in layersRelated Words- foliation
- geologic process
- geological process
noun a layered configurationRelated Words- shape
- configuration
- conformation
- contour
- form
noun the placing of seeds in damp sand or sawdust or peat moss in order to preserve them or promote germinationRelated Words- locating
- positioning
- emplacement
- location
- placement
- position
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