砂岩

• The sediments are detrital and largely of greywacke facies .
  沉积岩为碎屑质，大部分属于杂质砂岩相。
• 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。
• The channel type is very unusual, of all the types of sandstone .
  在各类砂岩中，水道砂岩是很特殊的。
• The sedimentary members are largely turbidites of greywacke facies .
  沉积岩的组成大部分为杂砂岩相的浊积岩。
• The channel is overlain by siltstone and lenticular beds of limestone .
  河道上面覆盖着粉砂岩和石灰岩透晶体。
• Channels are incised by streams into the underlying red siltstones .
  古河道由水流切割而侵入下伏的红色粉砂岩中。
• Their interpretation of the original shape of the sand body is suspect .
  他们对砂岩体原始形态的解释是靠不住的。
• Both the upper and lower sandstone units of the precipice are oil-bearing .
  普雷西皮斯的上部和下部砂岩单元都含油。
• The presence of fragments of silicified siltstone retains their original bedding .
  硅化粉的砂岩碎块保留有原始层面。
• Sandstone and conglomerate are the consolidated equivalent of sand and gravel .
  砂岩和砾岩分别是砂和砾石固结的产物。