volcanic arc

• 火山岛弧

volcanic arc的用法和样例：

例句

1. Most of the islands are part of a geologically unstable and volcanically active island arc.
   多数岛屿在地理上都是不稳定的火山活动岛弧。
2. The epithermal silver deposit and the Kuruko silver deposit are distributed over volcanic arcs and island arcs.
   火山弧和岛弧控制了浅成低温热液型和黑矿型银矿床。
3. The Ellsworth basin lay between the epicontinental basin and the marginal magmatic arc during the Devonian.
   除了上述两个沉积盆地外，在罗斯海两边却出露了火山岩，说明该地当时处于俯冲带附近的火山弧中。
4. The epithermal silver deposit and the Kuruko silver deposit are distributed over volcanic arcs and island arcs.
   火山弧和岛弧控制了浅成低温热液型和黑矿型银矿床。