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Magnetostratigraphic polarity-transition zon
| Словарь стратиграфических терминов |
(polarity-transition zone). a substantial interval in a succession of rock strata (of the order of 1 m in thickness) in which the magnetic polarity is reversed gradually (see section 8.b.6).
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Transition, английский
- Переучивание; переподготовка
- N переход closed ~ закрытый слог (ант. open ~) normal ~ обычный переход open ~ открытый переход (ант. closed ~) percussive ~ ударный переход
- Переход от пластичного состояния к хрупкому
- A change in gait.
- Upward or downward change between gaits, speed, direction, or maneuvers.
- A move from one license, product, or license model to another. some examples of transitions are: a step-up to a higher edition; a move from on-premises to the cloud, or cloud to on-premises; or a move to or from a license model that is a hybrid of an online service and an on-premises product.
- An allowed path from one state to another.
- An animation effect that specifies how the display changes as a user moves from one item (such as a slide or web page) to another.
- In a statechart or activity diagram, a relationship between two states or action states or between a state and itself.
- Переход
Substantial, английский
Succession, английский
- A line of happenings, one after the other she had a succession of miscarriages.
- The orderly progression of changes in a community composition that occurs during development of vegetation in any area; from initial colonization to the attainment of the climax typical of a particular geographic area. micro s.: a dying tree, for example forced by winds to break causes a successional chain of events (also known as degrative succession. - see mosaic climax). autotropic s.: a temporal succession of species location principally involving plants. allogenic s.: a temporal succession of species at a location that is driven by external influences which alter conditions (contrary to autogenic); e.g. silt deposits changes a marshland to woodland. autogenic s.: a temporal succession of species at a location that is driven by processes operating with the community (contrary to allogenic), e.g. primary and secondary succession, that occur on newly exposed land. degraditive s.: degradable resources (feces, dead organisms) are utilized successively by a number of species; there is a link between succession on plant litter and soil formation. heterotrophic s.: a temporal succession of species at a location, principally involving animals. primary s.: soon after a region is denuded, a variety of pioneer species begin to colonize the bare ground and they modify the environmental conditions (e.g. a retreating glacier, early organisms provide the soils needed by succesing organisms - facilitation). secundary s.: follows major changes to an established ecosystem. catastrophic weather events, fire, or human activities all disturb the environment. after such an event on land, well-developed soil remains, giving pioneer species an easy foothold, but also on abandoned agricultural areas. order of s.: once an ecosystem is established, succesion does still take place on a smaller, slower, more complex scale. • degrative oos.: dead organic matter (feces etc ) trigger a succesional change of decomposing organisms until substance is completely recycled. • interactive oos.: interaction between species, e.g. herbivores in an habit; birds feed on caterpillar - too many caterpillars feeding on leaves can decrease competitiveness of plant, in which the bird lives. theories of s.: disturbances in ecosystems open up an area with the following scenarios: • facilitated: only certain pioneer species are capable of becoming established in the open space, but if certain species can exist and establish as adults under prevailing conditions, so that either can be: • tolerated: modification of the environment by early occupants has little or no effect on subsequent recruitment of later successional species, or • inhibited: occupants by early organisms make it less suitable for recruitment of late successional species, e.g. ulva sp.
- The passing of property or legal rights after death. the word commonly refers to the distribution of property under a state’s intestate succession laws, which determine who inherits property when someone dies without a valid will. when used in connection with real estate, the word refers to the passing of property by will or inheritance, as opposed to gift, grant, or purchase.
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Law of superpositio, английский
(principle of superposition). the general law or principle, attributed to steno (1669), upon which all geologic chronology is based: in any sequence of layered rocks, sedimentary or extrusive volcanic, that has not been overturned, the youngest layer is at the top and the oldest is at the base. layer. a general term for any tabular body of rock—sedimentary, igneous, or metamorphic (see calkins, 1941).
Magnetostratigraphic polarity-reversal horizo, английский
(polarity-reversal horizon).
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