有时，游客们可以走到这些新形成的黑色的火山岩边缘。
Sometimes visitors are able to walk out near the edge of this new black volcanic rock.
他声称，之前普遍为大众接受的理论可能是错的——即当火山岩浆库冷却后，需要经过多年才能在新岩浆的作用下重新恢复高温。
He said the widely accepted theory that when a volcano's magma chamber cools it could be years before it heats up with fresh magma could be wrong.
存在比桑日群弧火山岩更早的新特提斯洋俯冲记录么?。
Subduction Record Earlier than arc volcanic rocks in the Sangri Group?
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