熔浆凝固后形成的岩石。
Formed by solidification from a molten state. Used of rocks.
初始熔浆部分熔融程度温度、压力呈正消长关系。
Finally, a positive correlation is observed between the partial fusion extent and the petrogenetic temperature and pressure.
流向火山西坡的呈现出黑色，这表明熔浆表面正在冷却。
The long flow on the west side of the volcano is mottled with black, a sign that the surface is cooling.
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