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Examples ofisland arc
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An isolated evolving intraoceanic arc or oceanic continentalislandarcenvironment, or separate source regions for the earlier and later sediments, seem more probable.
From theCambridge English Corpus
Rare earth elements and theislandarctholeiitic series.
From theCambridge English Corpus
It was also suggested that most of the lavas were erupted in anislandarcsetting, although no primary field relations were reported to support this interpretation.
From theCambridge English Corpus
Offshore volcanoes form islands, resulting in a volcanicislandarc.
From
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Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The term volcanic arc is often confused with the termislandarc.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The term volcanicislandarcis merely a sub-classification ofislandarc.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Interbeded between these layers were volcanic deposits, probably from anislandarc.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Any "early warning" systems for these disastrous events will require a more detailed understanding of marine geology of coastal andislandarcenvironments.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Some convergent margins have zones of active seafloor spreading behind theislandarc, known as back-arc basins.
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Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Trenches are generally parallel to a volcanicislandarc, and about 200km mi from a volcanic arc.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Before the accretion of theislandarctook place, subduction between a continental plate and presumably an oceanic plate was taking place.
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This example is from Wikipedia and may be reused under a CC BY-SA license.This enriched fluid rises to metasomatize the overlying mantle wedge and leads to the formation ofislandarcbasalts.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Slab pull and far-field drivers such as ridge push were aiding in closing the distance between theislandarcand the continent.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.All this suggests these formations were initially deposited in an oceanic environment, possibly as seamounts or anislandarc.
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Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.However, oceanic crust is still at the surface between the promontories, not having been subducted beneath theislandarcyet.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Farther to the west, a complexislandarcassemblage formed above a subduction zone.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Honshu itself is formed from theislandarcdeveloped over the subducting plate.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
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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