The unusual primitive compositions of the west mata eruption lavas have much to tell us .

西玛塔火山喷发熔岩的不同寻常的原始组分告诉我们许多秘密。

Previously , researchers had found nearby pillow lavas , bulbous lava flows that form under water .

以前，研究人员在附近发现了形成于水下的枕状熔岩和球根状熔岩流。

The discovery of pillow lavas is of great significance in precise determination of the forming age and living environment of the animals and plant fossils .

这些枕状熔岩的发现对于准确确定珍稀动植物化石的形成时代和环境具有重要意义。