| 词汇 | example_english_subduction-zone |
| 释义 | Examples of subduction zoneThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Deciphering mantle and crustal signatures in subductionzone magmatism. These authors relate the transition from calc-alkaline to tholeiitic volcanism to a change in the dip of the subductionzone. Subduction was not active in the area and hence subductionzone enrichment is not referred to in the following description. Models of quartz overgrowth and vein formation: deformation and episodic fluid flow in an ancient subductionzone. The long second section (280 pages) contains the real meat, consisting of four long essays on strike-slip faults, normal faults, reverse faults (and folds) and subductionzone megathrusts. The buoyant ascent of the detached upper crustal slice along the subductionzone does not, however, lead to a removal of the mantle wedge above the descending slab. This means that (for example) the beginner may not appreciate the difference in scale between a diagram for folded strata and one showing a whole subductionzone. The formation of mantle phlogopite in subductionzone hybridization. The elements of an active oceanic basin often include the oceanic trench associated with a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The magma ascends to form an arc of volcanoes parallel to the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This large oceanic plate was consumed at subduction zones (see subductionzone). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The high water contents of back-arc basin basalt magmas is derived from water carried down the subductionzone and released into the overlying mantle wedge. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The plates move at a relative rate of over 0.4 inches (10 mm) per year at a somewhat oblique angle to the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The plates move at a relative rate of over per year at a somewhat oblique angle to the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They cause both the subducting and overriding plate to move in the direction of the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One theory involved closure of a back-arc basin between the western continental margin and a volcanic arc over an east-dipping subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Speed offered a distinctly different model involving a volcanic arc above a west-dipping subductionzone to the west of the continent. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Continental collision is a variation on the fundamental process of subduction, whereby the subductionzone is destroyed, mountains produced, and two continents sutured together. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is found in isolated metasomatically altered bodies within serpentinite associated with subductionzone environments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These conditions exist in the orogenic belts that result from either two continental tectonic collisions or from subductionzone accretion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most of its borders are convergent boundaries including a subductionzone to the west. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A "volcanic arc system" is a series of volcanoes that form near a subductionzone where the crust of a sinking oceanic plate melts. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The length of the subductionzone fracture was 600 km. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Suturing of one continental block onto another usually occurs because a subductionzone exists beneath one of the blocks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The plates move at a relative rate of over per year at an oblique angle to the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The major slip events on the subductionzone interface are typically of megathrust type. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The accretionary complex itself could either be the toe of a subductionzone, or an accretionary prism. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These units are oriented parallel to the coast and the subductionzone there. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As the subductionzone and its associated trench pull backward, the overriding plate is stretched, thinning the crust which is manifest in the back-arc basin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This term describes the backward motion of the subductionzone relative to the motion of the plate which is being subducted. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In both cases the change in arc geochemistry can be related to the evolving architecture of that particular subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Farther to the west, a complex island arc assemblage formed above a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At a typical subductionzone, an oceanic plate typically sinks at a fairly steep angle, and a volcanic arc grows above the subducting plate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The weakness of the asthenosphere allows the tectonic plates to move easily towards a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The younger basalts are alkalic or calc-alkaline, characteristic of magmas derived from a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Geologists call such a lack of volcanic activity near a subductionzone a "magmatic null". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As a result, they are less explosive than subductionzone volcanoes, which have high water contents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Boninite magmatism is similar to komatiite magmatism but is produced by fluid-fluxed melting above a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A subductionzone is a type of contact between different crustal plates where heavier crust slides below lighter crust. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In all well-documented occurrences, jadeitite appears to have formed from subductionzone fluids in association with serpentinite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many researchers conclude that the fault zone here is an incipient subductionzone, with oblique motion corresponding to the transition from lateral (strike-slip) motion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These two distinct thermal conditions are parallel to the trend of the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When two plates move towards one another, they form either a subductionzone or a continental collision. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. So scientifically speaking, the actual subductionzone itself has not ruptured in almost 300 years: a huge concern for seismologists. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Porphyry deposits are formed in arc-related settings and are associated with subductionzone magmas. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This earthquake was a thrust in a very oblique subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The shape of the subductionzone was also key in whether the geometry of the slab could overcome the phase transition boundary. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At the subductionzone, slab-pull comes into effect. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Mountain building is normally focused between 200to400mi km inland from a subductionzone boundary. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A second theory involved collision of the continent with an island arc above a west-dipping subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This lighter calcareous rock rides over the front of the subductionzone, uplifted by compressional and isostatic forces. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A transform fault may also become a subductionzone, with the side with the higher, hotter, thinner lithosphere riding over the lower, colder lithosphere. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These ophiolites sit on subductionzone accretionary complexes (subduction complexes) and have no association with a passive continental margin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A mlange is formed in the accretionary wedge above a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two pieces of the puzzle were linked, and they then realized that the subductionzone was more hazardous than previously suggested. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It initiates and evolves behind the volcanic arc on the overriding plate of a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As a result, they are less explosive than subductionzone volcanoes, in which water is trapped under the overriding plate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ridge-push occurs when the growing bulk of the ridge pushes the rest of the tectonic plate away from the ridge, often towards a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Compared to mid-ocean ridge seamounts, subductionzone seamounts generally have more sodium, alkali, and volatile abundances, and less magnesium, resulting in more explosive, viscous eruptions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Additional sedimentation occurred until a subductionzone formed off the coast. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most tsunami earthquakes have been linked to rupture within the uppermost part of a subductionzone, where an accretionary wedge is developed in the hanging wall of the megathrust. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Geologic processes that elevate heat flow are varied, however some researchers suggest that heat generated at a subductionzone is transferred to the overriding plate as subduction proceeds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The proposed land-based subductive waste disposal method disposes of nuclear waste in a subductionzone accessed from land, and therefore is not prohibited by international agreement. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The chapters on mid-ocean ridges and subduction zones were disappointing. A physical model for the volume and composition of melt produced by hydrous fluxing above subduction zones. The restricted width of back-arc basins is probably because magmatic activity depends on water and induced mantle convection and these are both concentrated near the subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The role of water and other volatiles in the melting of existing crustal rock in the wedge above a subductionzone is a most important part of the cycle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most papers relate to rifted margins or to subduction zones. This controls the way the continental crust responds to plate collision, earthquakes and aseismic slip in subduction zones, and mantle convection. The conditions within the subducting slab as it plunges toward the mantle in a subductionzone also produce regional metamorphic effects, characterised by paired metamorphic belts. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such volcanic deposits are noted to have been bimodal and potentially intraplate possibly induced by (and therefore close to a) subductionzone and possibly in an island arc setting. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Rift flank uplift occurs when the crust on the side of a rift zone converges with a stronger crust, usually resulting in crustal thickening and a subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Tracing trace elements from sediment input to volcanic output at subduction zones. This distance is much less than the 150-200 km observed in the modern subduction zones between the arc front and the trench axis. The proposed land-based subductive waste disposal method would dispose of nuclear waste in a subductionzone accessed from land, and therefore is not prohibited by international agreement. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It can be very difficult successfully to picture major geological features and processes such as spreading ridges, subduction zones, magmatism, metamorphism. In most subduction zones the magmatic-arc front is a welldefined line. Fluids escaping from the shallowest parts of a subductionzone may also escape along the plate boundary but have rarely been observed draining along the trench axis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Migration of fluid phase and genesis of basalt magma in subduction zones. The volcanism records yet another subductionzone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Oceanic plates are usually subducted back into the mantle in subduction zones. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The main places where partial melting occurs are subduction zones, mid-ocean ridges and hotspots. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The plate boundaries which meet at this triple junction are all subduction zones (trenches). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a triple junction and three subduction zones are involved. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, in common with most other subduction zones, the outer margin is slowly being compressed, similar to a giant spring. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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