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。
Deep under Old Faithful, where the molten rock is, the pressure is much greater.
在老守信湖地下更深处，熔岩活动的地方，气压要高得多。
Deep under Old Faithful, where the molten rock is, the pressure is much greater.
在老守信湖地下更深处，熔岩活动的地方，气压要高得多。
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