火山岩相主要是指火山活动产物的产出环境及岩相特征,研究火山岩相对于重塑火山活动过程、恢复古火山机构、分析火山岩体形成机理、提高火山岩区填图找矿水平等方面,都有一定的理论和实际意义。
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该区内火山岩相主要为火山爆发相、溢流相。
The volcanic lithofacies in this field are mainly erupting facies and flowing facies.
其成矿作用主要受二叠纪火山岩相及火山机构控制。
The metallization is controlled by the Permian volcanic lithofacies and volcanic edifice.
据此,辛顿和鲍尔斯认为,这处火山岩相当年轻——大概几百岁。
This observation leads Sinton and Bowles to think the lava is fairly young-maybe a few hundred years old.
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