岩

• The limestone, sandstone and shale of this area were soft .
  这个地区的灰岩、砂岩和页岩都是很柔软的。
• Well-sorted quartz sandstones are generally not very abundant .
  分选良好的石英沙岩一般并不十分丰富。
• The uranium pre-dates the kombolgie formation sedimentation .
  铀原先赋存于科母波尔吉岩系的沉积层中。
• We must find economical methods for extracting oil from shale .
  我们必须找到从页岩中采油的经济方法。
• Serpentinite is the least altered member of the peridotite suite .
  蛇纹岩是橄榄岩组蚀变最轻微的分子。
• The repetition commonly involves specific sequences of lithologies .
  这种重复通常包含特定的岩性顺序。
• Rapid melting of the snow saturated debris in a large landslide .
  积雪的急剧融化使大滑坡中的岩屑饱和。