The Aqishan-Yamansu island-arc belt occurred on a wide continental shelf sea in the Visean Stage.
阿齐山—雅曼苏岛弧带发生在维宪期阶段的广阔大陆架海上。
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Another dispute is around the island of Spitsbergen, on which Russia has had mining rights since 1920. Norway says it owns the continental shelf around it.