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Lava breccia
| Глоссарий горнодобывающей промышленности |
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Breccia, английский
- Angular fragments of material, commonly formed by physical weathering processes or explosive volcanic activity.
- Any stone composed of angular fragments embedded and consolidated in a finer ground. numerous marbles owe their distinctive appearance to brecciation.
- A coarse-grained rock of sedimentary or igneous origin that is composed of angular rock fragments held to- gether by a mineral cement or fine-grained matrix.
- Any rock formation essentially composed of uncemented, or loosely consolidated, small angular-shaped fragments. compare broken ground.
- A fragmental rock whose components are angular and therefore not waterworn. there are friction or fault breccias, talus breccias, and eruptive breccias. compare conglomerate.
- A coarse-grained, clastic rock composed of angular rock fragments (larger than 2 mm) commonly bonded by a mineral cement in a finer-grained matrix of varying composition and origin. the consolidated equivalent of rubble. compare - conglomerate. gsst
- Coarse-grained rock composed of angular broken rock fragments held together by
Breccia, испанский
Breccia-conglomerate, английский
Breccia-sandstone, английский
Breccial, английский
Brecciate, английский
Brecciated, английский
Broken or resembling a breccia.
Brecciation, английский
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 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 plateau, английский
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
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
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Lava dome, английский
Lauth mill, английский
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