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Lava plateau
| Глоссарий геологических терминов |
A broad elevated tableland or flat-topped highland that may be localized but commonly is many hundreds or thousands of square kilometers in extent, underlain by a thick succession of basaltic lava flows resulting from fissure eruptions (e.g. columbia river plateau). compare - lava plain, lava field. gg
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Lava, шведский
Lava, английский
- Linear amplifier for various applications
- Magma which has reached the surface through a volcanic eruption. the term is most commonly applied to streams of liquid rock that flow from a crater or fissure. it also refers to cooled and solidified igneous rock.
- General term for molten, extrusive magma erupting non-explosively
- Magma that reaches the surface of the earth.
Lava, испанский
Lava breccia, английский
Lava cover, английский
Lava dome, английский
Lava field, английский
An area covered primarily by lava flows whose terrain can be rough and broken or relatively smooth; it can include vent structures (e.g., small cinder cones, spatter cones, etc.), surface flow structures (e.g., pressure ridges, tumuli, etc.) and small, intermittent areas covered with pyroclastics. compare - lava plain, volcanic field. sw
Lava flow, английский
- An outpouring of lava onto the surface from a vent or fissure. also, a solidified tongue-like or sheet-like body formed by outpouring lava.
- A solidified body of rock formed from the lateral, surficial outpouring of molten lava from a vent or fissure, often lobate in form. compare - `a`a lava flow, lava flow unit, pahoehoe lava flow. gg
Lava flow unit, английский
A separate, distinct lobe of lava that issues from the main body of a lava flow; a specific outpouring of lava, a few centimeters to several meters thick and of variable lateral extent that forms a subdivision within a single flow. a series of overlapping lava flow-units together comprise a single lava flow. also called flow unit. compare - lava flow. gs & gg
Lava plain, английский
A broad area of nearly level land, that can be localized but is commonly hundreds of square kilometers in extent, covered by a relatively thin succession of primarily basaltic lava flows resulting from fissure eruptions. compare - lava plateau, lava field, volcanic field. sw & gg
Lava trench, английский
A natural surface channel in a lava flow that never had a roof, formed by the surficial draining of molten lava rather than by erosion from running water; also called lava channel. compare - mawae, lava tube. sw
Lava tube, английский
- A tunnel formed when the surface of a mafic lava flow cools and solidifies, while the still-molten interior flows through and drains away. these can insulate the flow and allow it to travel great distances.
- A natural, hollow tunnel beneath the surface of a solidified lava flow through which the lava flow was fed; the tunnel was left empty when the molten lava drained out. ma & gg
Lava [ae, f], латинский
Lavabedeckung, немецкий
Lavabel, немецкий
Bez.f. crêpe lavable; gut waschbarer, knitterarmer halbkrepp aus natur- oder chemiefaser mit sehr weichem, stumpfem griff
Lavabo, английский
In monasteries of the middle ages, a large stone basin from which the water flowed through a number of small orifices around the edges, for the convenient performance of ablutions before religious exercises or meals.
Lavabo, французский
Lavac, английский
Laser atmospheric visibility and
Lavacline, английский
Lavacrum, латинский
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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Lava trench, английский
A natural surface channel in a lava flow that never had a roof, formed by the surficial draining of molten lava rather than by erosion from running water; also called lava channel. compare - mawae, lava tube. sw
Lava plain, английский
A broad area of nearly level land, that can be localized but is commonly hundreds of square kilometers in extent, covered by a relatively thin succession of primarily basaltic lava flows resulting from fissure eruptions. compare - lava plateau, lava field, volcanic field. sw & gg
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