oxygen 18造句

• The zircons we studied were depleted in oxygen 18 relative to the mantle, and such depletion occurs only if the crystals formed from rocks that interacted with rain or snow
  因为相较于地函，我们所研究的锆石，氧18含量偏低，而这种情形只有可能是晶体的母岩曾经和雨水或雪发生交互作用。
• If the next eruption is depleted in oxygen 18, then it is most likely still being fed by stagnant remnants of the original magma, which by now is probably more of a thick crystal mush than an explosive liquid
  如果下一次的喷发较缺乏氧18，那麽它最有可能的来源是先前岩浆库中滞留的残馀物，此时可能是充满结晶的糊状物，而不是喷发的液态。