molten rock

基本解释

These are globules of once-molten rock trapped inside crystals in the rock.
这些源自熔岩的球状岩石被包裹在橄榄石晶体里。
The park's most awe-inspiring feature is its lava tubes, underground passageways created by hardened molten rock.
公园最令人惊叹的特征就是这里的熔岩洞，是用坚硬的熔融岩石而建造的地下走廊。
Cradling one of the world's largest and least studied lava lakes—more than 700 feet across and possibly miles deep—Nyiragongo has twice sent molten rock racing toward residents of Goma.
孕育着世界上最大也是最缺乏研究的熔岩湖——宽达700多尺、深达数英里——尼拉贡戈火山曾经两次喷发，熔化了的岩石滚烫烫地流向戈马的居民。

Another well had to be abandoned when the drillers hit red-hot molten rock.
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It's a tin-can-shaped explosive covered with a lid of copper that turns into molten rock and pierces through armored vehicles.
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When the ocean plates sink deep enough, portions are melted by the intense heat generated within the mantle, turning the solid rock into molten magma.
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