paleo-arc

常见例句

• This area was in an arc and rear-arc basin on convergent plates in the Middle Devonian.
  其岩石化学及地球化学显示岛弧火山岩特征。
• 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。
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