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زمینشناسی و معدن::
کمربند ماگمایی
The arc is the point of reference for the convergent boundary that is usually divided into three parallel zones: from the trench to the arc is the forearc zone, the arc zone comprises the magmatic belt, and the region behind the arc is the backarc zone (Fig. 7.3).
Abukuma-type regional metamorphism and contact metamorphism occur in the magmatic belts above subduction zones.
Melted rock material rising in the magmatic belt
Zonation of magmas in space and time Although magmatic belts above subduction zones are dominated by calc-alkaline rocks, tholeiitic and alkaline magmas also occur.
Metamorphism in the magmatic belt
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