| If the overriding plate is continental, the volcanic arc expresses itself as an extended mountain range such as the Andes of South America. |
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| In central and northern Sardinia there is evidence of an Ordovician magmatic belt upon older basement interpreted as an Andean-type volcanic arc. |
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| Thus basin evolution can be readily linked to geochemically and radiometrically constrained volcanic arc development. |
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| An early Cretaceous to late Eocene volcanic arc was located in the present-day Central Depression. |
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| It is limited to the east and south by wide cratonic areas, whereas to the west it is bounded by the Andean volcanic arc. |
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| Both features are characteristic of calc-alkaline magmas erupted in subduction-related volcanic arc environments. |
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| Mount Baker is the largest volcanic complex in the northern part of the Cascade volcanic arc. |
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| Basement rocks of the EGB are generally upper Paleozoic flysch and volcanic arc sequences formed in a remnant ocean basin. |
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| Geologically, the Solomon Islands are part of the volcanic arc extending from New Ireland in Papua New Guinea to Vanuatu. |
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| The landmass can also be an active volcanic arc such as the Aleutian Islands chain or the Japan islands arc. |
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| Various combinations of these processes are invoked to account for the range of geochemical and petrographic features in tale-alkaline continental margin volcanic arc suites. |
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| Under the compressive forces of the initial Taconic tectonic phase during the Ordovician Period, the ancient ocean floor of the Iapetus and its partially submerged volcanic arc were joined to the edge of Laurentia. |
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| In southern British Columbia, the Mesozoic volcanic chain was built partly on still older Quesnellian volcanic arc rocks and partly on oceanic rocks of Slide Mountain terrane. |
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| The islands are part of a volcanic arc, the Sunda Arc, formed by subduction along the Sunda Trench in the Java Sea. |
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| A volcanic arc is formed on the continental plate, above the location of the downgoing oceanic slab. |
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| The volcanic arc is the surface expression of the magma that is generated by hydrous melting of the mantle above the downgoing slab. |
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| Helens, Mount Etna and Mount Fuji, lie at approximately one hundred kilometers from the trench in arcuate chains, hence the term volcanic arc. |
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| An example of a volcanic arc having both island and continental arc sections is found behind the Aleutian Trench subduction zone in Alaska. |
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| The promontory of Monte Gargano, on the east, is completely isolated, and so are the Campanian volcanic arc near Naples. |
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| Vast areas of Mexico, New Mexico, and Colorado east of the main volcanic arc were blanketed by volcanic ash flows between 38 and 28 million years ago. |
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| Because the oceanic plateau was too buoyant to be subducted, it began to override the proto-Caribbean gulf, carrying the Antilles volcanic arc on its prow. |
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| The volcanic arc is caused by physical and chemical interactions between the subducted plate at depth and asthenospheric mantle associated with the overriding plate. |
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| It looks like the Taconic arc has its continuation along the western continental margin of Siberia and both of them constitute a single Taconic-Enisej volcanic arc. |
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| Later, the oceanic plateau, together with the volcanic arc complex built on top of it, were accreted to and obducted onto the continental crust of the Vodla block. |
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| This volcanic arc was formed above a subduction zone where the oceanic lithosphere of the Iapetus Ocean subducted southward under other oceanic lithosphere. |
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| The overriding plate typically contains a volcanic arc and forearc region. |
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| In this case an accretionary prism grows and the location of the trench migrates progressively away from the volcanic arc over the life of the convergent margin. |
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| Since Central America is a major subduction zone, Nicaragua hosts most of the Central American Volcanic Arc. |
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| This subduction forms the volcanoes of Guatemala, El Salvador, Nicaragua, and Costa Rica, also known as the Central America Volcanic Arc. |
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| Subduction forms the volcanic islands of the Lesser Antilles Volcanic Arc from the Virgin Islands in the north to the islands off the coast of Venezuela in the south. |
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| Due to the presence of several active geologic faults and the Central America Volcanic Arc, there is a great deal of seismic activity in the region. |
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